Atomizing mechanism

Abstract

This invention discloses an atomizing mechanism comprising an atomizing plate and a conductive membrane. The conductive membrane is positioned above the atomizing plate, and a sealed cavity is formed between the atomizing plate and the conductive membrane. The edge of the sealed cavity is concave upwards, forming a liquid holding area below the sealed cavity and an exhaust area above the edge of the sealed cavity. The liquid holding area is filled with a liquid medium, and the exhaust area is an empty cavity. This invention utilizes the characteristic that the gas density is less than that of the liquid medium by utilizing the concave shape of the sealed cavity edge to provide a dedicated channel for gas exhaust. During the atomization process, the liquid holding area is filled with a liquid medium. Under the influence of ultrasonic vibration, the gas in the liquid medium is exhausted to the exhaust area, while the liquid holding area remains filled with a liquid medium. This reduces the waste of ultrasonic wave reflection at the gas-liquid interface, improves energy utilization, and avoids air bubbles remaining in the liquid medium, thus preventing atomization uniformity.

Description

Technical Field

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

[0002] In the field of atomization technology, ultrasonic atomization is widely used in medical, humidification and other scenarios due to its advantages such as high efficiency and uniform particle size. Existing atomization mechanisms mostly consist of an atomizing plate and a conductive membrane, and the cavity between the two is often flat or regular columnar, lacking a dedicated exhaust channel.

[0003] However, during atomization, the liquid medium inside the cavity generates bubbles due to ultrasonic vibration. If these bubbles cannot be expelled in time, they accumulate and form a gas-liquid mixing zone. Due to the large difference in acoustic impedance between the gas and liquid, ultrasonic waves are reflected extensively at the interface, causing a sharp drop in energy utilization and reducing atomization efficiency. At the same time, the trapped bubbles disrupt liquid stability, resulting in uneven atomized particles. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of low atomization efficiency and uneven atomization in the existing technology, and to provide an atomization mechanism.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides an atomizing mechanism, including: an atomizing plate and a conductive membrane; the conductive membrane is disposed above the atomizing plate, and a sealing cavity is provided between the atomizing plate and the conductive membrane, the edge of the sealing cavity is recessed upward so that a liquid holding area is formed below the sealing cavity, and an exhaust area is formed above the edge of the sealing cavity; the liquid holding area is filled with a liquid medium, and the exhaust area is a cavity.

[0006] In one embodiment, the lower surface of the conductive membrane is provided with an upwardly recessed annular groove, which forms the exhaust zone.

[0007] In one embodiment, the conductive membrane has a conductive portion, the annular groove is disposed around the outer edge of the conductive portion, the conductive portion is disposed parallel to the atomizing sheet, and the liquid holding area is formed between the conductive portion and the atomizing sheet.

[0008] In one embodiment, the distance between the conductive portion and the atomizing sheet ranges from 0.1 to 1 mm.

[0009] In one embodiment, the device further includes a base, and the edge of the conductive membrane is provided with a support area. Both the conductive membrane and the atomizing sheet are mounted on the base, and the support area and the edge of the atomizing sheet are tightly connected to the base.

[0010] In one embodiment, the base is provided with a limiting groove, the support area is attached to the atomizing sheet, and the edges of the support area and the atomizing sheet are fitted into the limiting groove.

[0011] In one embodiment, the base includes an upper carrier and a lower body, the upper carrier being located above the lower body and detachably connected to the lower body, and the limiting groove being formed between the upper carrier and the lower body.

[0012] In one embodiment, the liquid holding area and the exhaust area are formed by recesses in the inner surface of the base, the atomizing plate is located at the bottom of the liquid holding area, the conductive membrane is located at the top of the liquid holding area, and the exhaust area is arranged around the outer periphery of the conductive membrane and communicates with the top of the liquid holding area.

[0013] In one embodiment, the height of the exhaust zone ranges from 0.1 to 2 mm.

[0014] In one embodiment, the thickness of the conductive membrane ranges from 0.02 to 0.2 mm.

[0015] The beneficial effects of the atomizing mechanism of this utility model compared with the prior art are as follows: by using the upward concave shape of the edge of the sealed cavity, and taking advantage of the characteristic that the gas density is less than that of the liquid medium, a dedicated channel for gas discharge is provided. During the atomization process, the liquid holding area is filled with liquid medium. When the ultrasonic vibration is affected, the gas in the liquid medium will be discharged to the exhaust area, while the liquid holding area can always be filled with liquid medium, thereby reducing the reflection and waste of ultrasonic waves at the gas-liquid interface, improving energy utilization, and at the same time avoiding the retention of air bubbles in the liquid medium, which affects the uniformity of atomization.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] 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.

[0018] Figure 1 A first-view structural diagram of the external structure of the atomizing mechanism provided in an embodiment of this utility model; Figure 2 A second-view structural diagram of the external 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 cross-sectional view of the outer casing provided for an embodiment of this utility model; Figure 6 A cross-sectional view of a base provided in an embodiment of the present utility model; Figure 7 This is a schematic diagram of the structure of the conductive membrane provided in an embodiment of the present invention; Figure 8 A cross-sectional view of a base provided in another embodiment of the present invention; Figure 9 This is a schematic diagram of the atomizer provided in an embodiment of the present utility model; Figure 10 An exploded schematic diagram of the atomizer provided in an embodiment of this utility model.

[0019] Figure Labels 1. Atomizing plate; 2. Conducting membrane; 21. Annular groove; 22. Conducting part; 23. Support area; 3. Sealing cavity; 31. Liquid holding area; 32. Exhaust area; 4. Base; 41. Limiting groove; 42. Upper carrier; 43. Lower carrier; 44. Empty groove; 45. First liquid inlet; 5. Outer shell; 51. Mounting groove; 52. Second liquid inlet; 6. Pressure plate; 7. Shielding cover; 8. Control components; 9. Liquid storage tank; 91. Outlet. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] See Figures 1 to 10 As shown, this utility model provides a specific embodiment of an atomizing mechanism, including: an atomizing plate 1 and a conductive membrane 2; the conductive membrane 2 is disposed above the atomizing plate 1, and a sealing cavity 3 is provided between the atomizing plate 1 and the conductive membrane 2, the edge of the sealing cavity 3 is recessed upward so that a liquid holding area 31 is formed below the sealing cavity 3, and an exhaust area 32 is formed above the edge of the sealing cavity 3; the liquid holding area 31 is filled with a liquid medium, and the exhaust area 32 is a cavity.

[0028] Specifically, the combination of the atomizing plate 1, the liquid medium, and the conductive membrane 2 enables the effective transmission and atomization of ultrasonic waves. The atomizing plate 1 acts as the ultrasonic wave generator, producing high-frequency ultrasonic vibrations. The liquid medium serves as the ultrasonic wave transmission medium, effectively transmitting the ultrasonic waves generated by the atomizing plate 1 to the conductive membrane 2. The conductive membrane 2 is made of a corrosion-resistant material, resistant to the erosion of acidic and alkaline components and additives in the liquid to be atomized. Under the action of ultrasonic waves, it vibrates, thereby atomizing the liquid to be atomized in contact with its surface. The design principle of the sealing cavity 3 is that by setting the edge of the sealing cavity 3 to an upwardly concave shape, it utilizes the characteristic that the gas density is less than that of the liquid medium to provide a dedicated channel for gas discharge. During normal operation, the liquid holding area 31 is filled with liquid medium. When the ultrasonic vibration is affected, the gas in the liquid medium will be discharged. Since the edge of the sealing cavity 3 is concave upward, the discharged gas will rise above the edge area of ​​the sealing cavity 3, i.e. the exhaust area 32. The liquid holding area 31 can always be filled with liquid medium, which minimizes the reflection and waste of ultrasonic waves at the gas-liquid interface, improves energy utilization, and avoids bubbles remaining in the liquid medium, affecting the atomization uniformity.

[0029] See Figures 6 to 7 As shown, in one specific embodiment, the lower surface of the conductive membrane 2 is provided with an upwardly recessed annular groove 21, which forms an exhaust zone 32.

[0030] Specifically, an annular groove 21 is directly set on the lower surface of the conductive membrane 2 as the exhaust zone 32. This allows for a more direct utilization of the structure of the conductive membrane 2 to form a gas-containing space. The annular structure enables the gas to be evenly distributed and discharged circumferentially, avoiding local gas accumulation that could affect the atomization effect. During operation, the gas generated in the liquid medium rises and naturally flows into the annular groove 21 on the lower surface of the conductive membrane 2, achieving gas collection and discharge. The design of the annular groove 21 makes the positional relationship between the exhaust zone 32 and the liquid holding zone 31 closer, shortening the gas discharge path, improving exhaust efficiency, and ensuring the stability of the liquid in the liquid holding zone 31. It is understood that the local cross-sectional shape of the annular groove 21 can be set to an arc, rectangle, or other shapes according to actual needs.

[0031] In one specific embodiment, the conductive membrane 2 is provided with a conductive portion 22, an annular groove 21 is disposed around the outer edge of the conductive portion 22, the conductive portion 22 is disposed parallel to the atomizing plate 1, and a liquid holding area 31 is formed between the conductive portion 22 and the atomizing plate 1.

[0032] Specifically, the annular groove 21 surrounds the outer edge of the conductive part 22, forming an organic whole with it. This allows for seamless connection between the exhaust zone 32 and the liquid holding zone 31, providing a smooth path for gas to flow from the liquid holding zone 31 to the exhaust zone 32. The conductive part 22 is parallel to the atomizing plate 1, ensuring uniform thickness of the liquid holding zone 31 between them. This creates favorable conditions for the uniform propagation of ultrasonic waves in the liquid medium, thereby improving the uniformity of atomization. This structural design further optimizes the functional zoning of the sealed cavity 3. The conductive part 22 focuses on efficiently transmitting ultrasonic waves, while the annular groove 21 is specifically responsible for collecting and expelling gas, improving the working efficiency of the atomizing mechanism and the stability of the atomization effect.

[0033] In one specific embodiment, the distance between the conductive part 22 and the atomizing plate 1 ranges from 0.1 to 1 mm.

[0034] Specifically, the spacing between the conductive part 22 and the atomizing plate 1 ensures that the liquid medium can fully fill the area, enabling effective transmission of ultrasonic waves. If the spacing is too small, the liquid medium will not be able to fill the area sufficiently and may affect the vibration of the conductive part 22; if the spacing is too large, the propagation loss of ultrasonic waves in the liquid will increase. By precisely defining the dimensions, the performance of the atomizing mechanism is further optimized, ensuring both the efficiency of ultrasonic wave transmission and the smooth discharge of gas, resulting in a more stable atomization effect.

[0035] In one specific embodiment, the thickness of the conductive membrane 2 ranges from 0.02 to 0.2 mm.

[0036] Specifically, a conductive membrane 2 of suitable thickness can generate appropriate vibrations under the action of ultrasound, effectively transferring energy to the liquid to be atomized, while ensuring the good sealing performance of the sealing cavity 3 and preventing liquid medium leakage. By limiting the thickness range of the conductive membrane 2, the conductive membrane 2 achieves an optimal balance between elasticity, sound transmission efficiency, and sealing performance, thereby improving the overall performance of the atomization mechanism.

[0037] More specifically, the materials selected for the atomizing plate 1, the liquid medium, and the conductive membrane 2 are all based on the acoustic impedance matching theory. Furthermore, the acoustic impedance of the atomizing plate 1, the liquid medium, the conductive membrane 2, and the liquid to be atomized decreases sequentially. From the perspective of acoustic impedance gradient design, using a sequentially decreasing acoustic impedance setting can form a stepped energy transfer path, minimizing sound wave reflection loss at each interface and significantly improving transmission efficiency. Understandably, the atomizing plate 1 can be a common type, made of piezoelectric ceramic. The conductive membrane 2 can be made of a material with good elasticity and sealing properties, such as a silicone membrane. The liquid medium can be water, silicone oil, etc., determined based on the acoustic impedance range 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.

[0038] Furthermore, the thicknesses of the atomizing plate 1, the liquid medium, and the conductive membrane 2 are also set based on the quarter-wavelength theory, with the thickness of each layer being approximately one-quarter of the wavelength through which the sound wave propagates. This precise thickness design enables the layers of the medium to form a resonant superposition effect, further improving the efficiency of sound wave energy transfer.

[0039] Preferably, the liquid medium is a glycerol mixture. From the perspective of adapting the shape of the sealing cavity 3 to the liquid medium, the upward-concave structure of the sealing cavity 3 places specific requirements on the fluidity and filling capacity of the liquid medium. Glycerol is adjusted to a suitable viscosity by adding additives (such as metal powder, propylene glycol, ethylene glycol, deionized water, etc.), ensuring stable filling in the liquid holding area 31 and smooth flow in the exhaust area 32. This avoids air bubble retention in the edge area due to high viscosity, or easy liquid loss in the liquid holding area 31 due to low viscosity. When ultrasound is applied, the structure of the sealing cavity 3 guides the glycerol mixture to form an orderly flow. The liquid in the liquid holding area 31 stably transmits sound waves, while the liquid in the exhaust area 32 pushes gas towards the top of the cavity with vibration. The viscoelasticity of the glycerol mixture buffers the vibration impact, reduces liquid splashing, and ensures the stability of the sealing cavity 3 structure.

[0040] Furthermore, the conductive membrane 2 is preferably a PI membrane. Considering the compatibility between the shape of the conductive membrane 2 and the properties of the PI membrane, the parallel arrangement of the conductive portion 22 and the structure of the annular groove 21 require the membrane material to possess good shape retention and local vibration response capabilities. The PI membrane has excellent mechanical strength and elasticity, with a tensile strength of 150-200 MPa, which can stably maintain the shape of the conductive portion 22, ensuring sufficient contact with the liquid medium in the liquid holding area 31. Simultaneously, the elongation at break of the PI membrane is approximately 20%-30%, which meets the shape requirements of the annular groove 21. Moreover, under high-frequency vibration, the transition design of the annular groove 21 can disperse stress, preventing the PI membrane from breaking due to excessive local deformation. In addition, the PI membrane has a low surface tension (approximately 40-50 mN / m), good compatibility with glycerol mixtures, and can form a uniform liquid film in the conductive portion 22, while reducing liquid residue in the annular groove 21. Combined with the structure of the edge of the sealing cavity 3, this accelerates the discharge of gas from the liquid medium.

[0041] In one specific embodiment, the atomizing mechanism further includes a base 4, and the edge of the conductive membrane 2 is provided with a support area 23. The conductive membrane 2 and the atomizing sheet 1 are both installed on the base 4, and the support area 23 and the edge of the atomizing sheet 1 are tightly connected to the base 4.

[0042] Specifically, the base 4 provides support and fixation for the conductive membrane 2 and the atomizing plate 1. The support area 23, as the edge portion of the conductive membrane 2, is stably connected to the base 4, enabling the conductive membrane 2 to maintain a stable position under ultrasonic vibration. This prevents displacement of the conductive membrane 2 from affecting the transmission of ultrasonic waves and the discharge of gas. Simultaneously, the edge of the atomizing plate 1 is also stably connected to the base 4, together ensuring the structural integrity of the sealing cavity 3. The tight connection structure also ensures that the liquid medium will not leak, thereby maintaining the continuity and stability of the atomization process. This design significantly improves the structural stability and sealing reliability of the atomization mechanism, extends the service life of the equipment, and facilitates the assembly and positioning of various components, reducing the difficulty of production and maintenance.

[0043] Preferably, the conductive part 22, the annular groove 21 area, and the support area 23 are integrally molded structures, which enhances the overall structural integrity of the conductive membrane 2 and avoids liquid leakage and vibration energy loss caused by splicing gaps. Integral molding reduces assembly steps, improves production efficiency, ensures dimensional accuracy and positional matching of each area, and makes ultrasonic wave transmission more stable. Consistent materials ensure uniform stress on the membrane, extending its service life, especially suitable for high-frequency vibration scenarios, while also enhancing the sealing fit with the base 4 and optimizing the atomization effect.

[0044] In one specific embodiment, the base 4 is provided with a limiting groove 41, the support area 23 is attached to the atomizing sheet 1, and the edges of the support area 23 and the atomizing sheet 1 are fitted into the limiting groove 41.

[0045] Specifically, the edges of the support area 23 and the atomizing plate 1 are positioned and fixed by the limiting groove 41, further enhancing the stability and sealing of the connection between the two and the base 4, preventing displacement or loosening during vibration, and ensuring the structural stability of the sealing cavity 3. The support area 23 fits against the atomizing plate 1, which on the one hand increases the contact area between them, utilizing the elastic properties of the support area 23 to fill any possible tiny gaps, thereby improving the sealing of the edge of the sealing cavity 3 and effectively preventing liquid medium from seeping out from the gap between them; on the other hand, this fitting arrangement allows the support area 23 and the atomizing plate 1 to be jointly limited by the same limiting groove 41, eliminating the need for separate limiting structures for the support area 23 and the atomizing plate 1, simplifying the structural design of the base 4, and reducing processing difficulty and assembly complexity. This design further improves the structural stability and sealing performance of the atomizing mechanism, reduces malfunctions caused by loose installation, ensures the stable operation of the atomization process, simplifies the overall structure, and reduces production and assembly costs.

[0046] In one specific embodiment, the base 4 includes an upper carrier 42 and a lower body 43. The upper carrier 42 is located above the lower body 43 and is detachably connected to the lower body 43. A limiting groove 41 is formed between the upper carrier 42 and the lower body 43.

[0047] Specifically, the use of a split base 4 structure facilitates the installation and replacement of the conductive membrane 2 and the atomizing plate 1. The detachable connection method allows for easy separation of the upper carrier 42 and the lower carrier 43 when maintenance or replacement of parts is required, making the operation simple and convenient.

[0048] Preferably, both the upper carrier 42 and the lower carrier 43 can be made of elastic material, which can compensate for assembly errors by utilizing elastic deformation, improve fit and positioning stability, and reduce stress concentration. In addition, the shock absorption performance of the elastic material can absorb high-frequency vibrations of the atomizing plate 1, reduce noise and external transmission, and form a tight sealing interface with the elastic support area 23 and the edge of the atomizing plate 1, filling gaps to prevent leakage and reducing stress loosening.

[0049] See Figure 8 As shown, in another specific embodiment, the liquid holding area 31 and the exhaust area 32 are formed by recesses on the inner surface of the base 4. The atomizing plate 1 is located at the bottom of the liquid holding area 31, the conductive membrane 2 is located at the top of the liquid holding area 31, and the exhaust area 32 is located on the outer periphery of the conductive membrane 2 and is connected to the top of the liquid holding area 31.

[0050] Specifically, unlike the method of setting an annular groove 21 on the conductive membrane 2, this solution directly constructs the liquid holding area 31 and the exhaust area 32 through the recess on the inner surface of the base 4, making them an integrated structure with the base 4. The liquid holding area 31 forms a closed cavity structure with the atomizing plate 1 and the conductive membrane 2. The atomizing plate 1 at the bottom can directly transmit ultrasonic waves to the liquid medium in the cavity, and the conductive membrane 2 at the top forms a sealed top cover. The exhaust area 32, which is wrapped around the outer periphery of the conductive membrane 2 and communicates with the top of the liquid holding area 31, can provide a dedicated channel for gas to flow from the top of the liquid holding area 31 to the outer periphery by taking advantage of the characteristic that the gas density is less than that of the liquid medium. The atomizing plate 1 at the bottom of the liquid holding area 31 realizes the vertical and efficient transmission of ultrasonic waves. The conductive membrane 2 at the top not only ensures the sealed environment of the liquid medium, but also transmits energy to the liquid to be atomized through vibration. The position of the exhaust area 32 around the outer periphery of the conductive membrane 2 is designed so that the gas can be discharged without having to travel a long distance.

[0051] In one specific embodiment, the height of the exhaust zone 32 ranges from 0.1 to 2 mm.

[0052] Specifically, based on the balance between gas volume and atomization efficiency, when the height of the exhaust zone 32 is less than 0.1 mm, regardless of the structural form, it is difficult to accommodate the gas generated during atomization, which easily leads to gas backflow into the liquid holding zone 31. When the height is greater than 2 mm, the annular groove 21 structure increases the processing difficulty of the conductive membrane 2, while the recessed structure of the base 4 occupies too much internal space, reducing the effective volume of the liquid holding zone 31. During operation, for the annular groove 21 structure, a height of 0.1 to 2 mm can ensure stable gas pressure within the groove, avoiding excessive gas discharge resistance due to insufficient space. For the recessed structure of the base 4, this height allows a reasonable air gap to be formed between the exhaust zone 32 and the conductive membrane 2, which neither affects the vibration of the conductive membrane 2 nor hinders efficient gas collection.

[0053] See Figure 6 and Figure 8 As shown, in one specific embodiment, the base 4 is provided with a slot 44 below the atomizing plate 1, and the size of the slot 44 is smaller than the size of the atomizing plate 1.

[0054] Specifically, the design principle of the slot 44 is mainly based on the acoustic impedance matching principle. The air inside the slot 44 forms a specific acoustic impedance interface. When the ultrasonic waves generated by the atomizing plate 1 propagate downwards to the slot 44, due to the significant difference in acoustic impedance between the air and the surrounding solids (including but not limited to the atomizing plate 1 and the base 4), the sound waves are reflected at the interface between the slot 44 and the surrounding solids. The reflected sound waves can then act on the atomizing plate 1 and the liquid medium above it, thereby reducing the transmission loss of sound wave energy to unrelated components such as the base 4 and maximizing the utilization of sound wave energy. At the same time, the size of the slot 44 is smaller than the size of the atomizing plate 1, which ensures that the edge of the atomizing plate 1 is effectively supported by the base 4, avoiding damage caused by excessive vibration, and balancing the sound wave reflection effect with structural stability.

[0055] See Figures 1 to 5 As shown, in one specific embodiment, the atomizing mechanism further includes a housing 5 and a pressure plate 6; the housing 5 is provided with a mounting groove 51, and the pressure plate 6 is connected below the mounting groove 51; the base 4 is fitted into the mounting groove 51, and its bottom abuts against the pressure plate 6.

[0056] Specifically, the outer casing 5 provides external protection for the entire atomizing mechanism, the mounting groove 51 is used to position and fix the base 4, and the pressure plate 6 supports and limits the base 4 from the bottom, preventing the base 4 from moving up and down during operation and enhancing the stability of the overall structure. During operation, the outer casing 5 protects the internal components from interference and damage from the external environment, the mounting groove 51 restricts the horizontal displacement of the base 4, and the pressure plate 6 ensures that the base 4 will not lift up due to vibration, making the entire atomizing mechanism a stable whole and ensuring the stable operation of the atomization process.

[0057] See Figure 3 As shown, in one specific embodiment, the slot 44 penetrates the base body 43 and has the pressure plate 6 as its lower surface, which simplifies the processing of the base 4, eliminating the need to separately process the bottom of the slot 44 and reducing manufacturing difficulty. The pressure plate 6, as the lower surface of the slot 44, ensures the stability of the slot 44's volume through its flat surface, improving the consistency of sound wave reflection. During assembly, the tight fit between the pressure plate 6 and the base body 43 enhances the sealing of the slot 44, preventing external impurities from entering and affecting the acoustic impedance environment. During operation, ultrasonic waves propagate downwards to the slot 44 via the atomizing plate 1, and the pressure plate 6 forms a rigid reflective surface, optimizing the sound wave reflection path in conjunction with the dimensions of the slot 44 to reduce energy loss.

[0058] See Figure 3 As shown, in one specific embodiment, a shielding cover 7 is connected below the pressure plate 6, and a control component 8 is installed inside the shielding cover 7. The control component 8 is electrically connected to the atomizing plate 1.

[0059] Specifically, the wires leading from the control component 8 pass through the shielding cover 7, the pressure plate 6, and the lower body 43, and connect to the atomizing plate 1. The shielding cover 7 provides electromagnetic shielding for the control component 8, preventing external electromagnetic interference from affecting the control component 8 and ensuring that the control component 8 can stably control the operation of the atomizing plate 1. This design improves the accuracy and stability of the atomizing mechanism control and enhances the overall performance of the equipment.

[0060] See Figure 3 As shown, in a specific embodiment, the base 4 is provided with a first liquid inlet 45 above the conductive membrane 2, and the outer shell 5 is provided with a second liquid inlet 52 above the first liquid inlet 45. The first liquid inlet 45 and the second liquid inlet 52 are connected to form a liquid inlet channel connected to the outside (not shown in the figure).

[0061] Specifically, the corresponding connection between the first liquid inlet 45 and the second liquid inlet 52 forms a directional liquid delivery path, ensuring that the liquid to be atomized can directly reach the atomization area of ​​the conductive membrane 2, avoiding leakage, stagnation, or uneven distribution of the liquid during transmission. Simultaneously, because the liquid inlet channel can continuously and uniformly supply the liquid to be atomized, an appropriate amount of liquid is always maintained above the conductive membrane 2, ensuring the continuity and stability of the atomization process and preventing insufficient or excessive liquid supply from affecting the atomization effect.

[0062] See Figures 9 to 10 As shown, this atomizing mechanism is suitable for medical nebulizers, humidifiers, and other similar applications. When connected to an external structure, the outer shell 5 is connected to the liquid storage tank 8, and the liquid inlet channel is connected to the outlet 81 of the liquid storage tank 8. During operation, the liquid to be atomized in the liquid storage tank 8 flows through the liquid inlet channel to the top of the conductive membrane 2. The atomizing plate 1 is excited by the control component 7 to generate ultrasonic waves, which are transmitted to the conductive membrane 2 through the liquid medium in the sealed cavity 3. Because the edge of the sealed cavity 3 is concave upwards, air bubbles in the liquid medium gather under vibration and are discharged into the exhaust zone 32, reducing energy loss and improving atomization uniformity. The conductive membrane 2 is forced to vibrate, atomizing the liquid. The empty slot 44 reflects the sound waves, improving efficiency, and the support area 23 is tightly connected to the base 4 to ensure a seal. Finally, the atomized particles are discharged through the mist outlet connected to the liquid inlet channel of the nebulizer or humidifier, meeting the needs of medical drug delivery or air humidification.

[0063] 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: Atomizing plate and conductive membrane; The conductive membrane is disposed above the atomizing plate, and a sealing cavity is provided between the atomizing plate and the conductive membrane. The edge of the sealing cavity is recessed upward so that a liquid holding area is formed below the sealing cavity and an exhaust area is formed above the edge of the sealing cavity. The liquid holding area is filled with liquid medium, and the exhaust area is a cavity.

2. The atomizing mechanism according to claim 1, characterized in that, The lower surface of the conductive membrane is provided with an upwardly recessed annular groove, which forms the exhaust zone.

3. The atomizing mechanism according to claim 2, characterized in that, The conductive membrane is provided with a conductive portion, the annular groove is arranged around the outer edge of the conductive portion, the conductive portion is arranged parallel to the atomizing plate, and the liquid holding area is formed between the conductive portion and the atomizing plate.

4. The atomizing mechanism according to claim 3, characterized in that, The distance between the conductive part and the atomizing plate is in the range of 0.1 to 1 mm.

5. The atomizing mechanism according to claim 1, characterized in that, It also includes a base, and the edge of the conductive membrane is provided with a support area. The conductive membrane and the atomizing sheet are both installed on the base, and the support area and the edge of the atomizing sheet are tightly connected to the base.

6. The atomizing mechanism according to claim 5, characterized in that, The base is provided with a limiting groove, the support area is attached to the atomizing sheet, and the edges of the support area and the atomizing sheet are fitted into the limiting groove.

7. The atomizing mechanism according to claim 6, characterized in that, The base includes an upper carrier and a lower body. The upper carrier is located above the lower body and is detachably connected to the lower body. The limiting groove is formed between the upper carrier and the lower body.

8. The atomizing mechanism according to claim 5, characterized in that, The liquid holding area and the exhaust area are formed by recesses in the inner surface of the base. The atomizing plate is located at the bottom of the liquid holding area, the conductive membrane is located at the top of the liquid holding area, and the exhaust area is arranged around the outer periphery of the conductive membrane and connected to the top of the liquid holding area.

9. The atomizing mechanism according to claim 1, characterized in that, The height of the exhaust zone ranges from 0.1 to 2 mm.

10. The atomizing mechanism according to claim 1, characterized in that, The thickness of the conductive membrane ranges from 0.02 to 0.2 mm.

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