An ultrasonic atomization module and an ultrasonic atomizer

Abstract

The application relates to the technical field of ultrasonic atomization, and particularly discloses an ultrasonic atomization module and an ultrasonic atomizer, which comprise a positioning frame, a sealing element and an atomization sheet, the positioning frame is arranged on a liquid supply side of the atomization sheet, the positioning frame is provided with a liquid passing space allowing liquid to flow to the atomization sheet and a mounting seat for fixing the sealing element; the sealing element is arranged in the mounting seat and comprises an elastic supporting element and an abutting element, the elastic supporting element is used for providing an elastic force for the abutting element, so that the abutting element abuts against the bottom surface of the atomization sheet. By introducing the sealing element with a dynamic sealing function, the atomization sheet can be reliably sealed in a non-working state, the sealing element can be automatically opened to supply liquid in a working state, the problem of static liquid leakage is solved, and the atomization stability and liquid compatibility are improved.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic atomization technology, and more particularly to an ultrasonic atomization module and an ultrasonic atomizer. Background Technology

[0002] Currently, ultrasonic microporous direct-spray products used in essential oil atomization, medical atomization, and other fields rely primarily on atomizing plate components for their core atomization function. These atomizing plates typically consist of a piezoelectric ceramic layer bonded to a stainless steel diaphragm with micropores. Their working principle is as follows: applying a high-frequency electrical signal to the piezoelectric ceramic induces high-frequency mechanical vibration, which in turn drives the stainless steel microporous diaphragm attached to it to vibrate, breaking the liquid flowing onto the diaphragm surface into micron-sized aerosol particles, thus achieving atomization.

[0003] In this type of design, the liquid is typically passively transported from the storage bottle to the working surface of the atomizing plate via capillary action through liquid-conducting materials such as cotton wicks or fiber ropes. The entire system is an open or semi-open liquid channel, lacking an effective active isolation mechanism.

[0004] The existing technology has the following main limitations: Firstly, there is the issue of liquid leakage when the device is not in operation. The microporous structure of the atomizing plate cannot effectively block liquid when the device is stationary. Due to capillary action, changes in ambient temperature and pressure, or device tilting, some liquid can easily seep through the micropores to the outside of the atomizing plate, further contaminating the device casing and the surrounding environment. Chinese patent CN205831080U discloses a MEMS atomizing chip for electronic cigarettes, which uses a driver to drive the deformation of a vibrating diaphragm, causing a change in the volume of the liquid chamber and generating pressure to drive e-liquid to be sprayed and atomized from the micropore array. Although this solution achieves MEMS-level atomizing chip integration, it does not solve the problem of liquid leakage through the micropores under static conditions. Its microvalve is only used to prevent liquid from flowing back from the inlet during inhalation, rather than for static sealing of the atomizing micropores themselves. Therefore, the risk of liquid leakage still exists when the device is not in operation.

[0005] Secondly, essential oils have poor compatibility. Different essential oils exhibit significant differences in their physicochemical properties (such as viscosity, surface tension, and volatility). Existing atomizing plates and liquid delivery systems are typically optimized for specific essential oil properties, making it difficult to stably and efficiently atomize a variety of essential oils with different characteristics. For essential oils with high viscosity or special surface tension, a sharp drop in atomization efficiency or even complete failure to atomize can easily occur.

[0006] Thirdly, there are risks of corrosion and pollution. Essential oils themselves are often corrosive. Leaked essential oils not only pollute the environment and affect the user experience, but long-term contact may also cause corrosion to electronic components or the outer casing of the atomizing plate, affecting product lifespan and safety. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an ultrasonic atomizing module and an ultrasonic atomizer. By introducing a sealing component with dynamic sealing function, the atomizing plate is reliably sealed when not in operation, and the liquid supply is automatically activated when in operation, thus solving the static leakage problem and improving atomization stability and liquid compatibility.

[0008] To address the aforementioned technical problems, this invention provides an ultrasonic atomizing module, comprising a positioning frame, a sealing member, and an atomizing plate. The positioning frame is disposed on the liquid supply side of the atomizing plate, and has a liquid flow space that allows liquid to flow to the atomizing plate, as well as a mounting base for fixing the sealing member. The sealing member is disposed in the mounting base and includes an elastic support member and an abutment member. The elastic support member provides elastic force to the abutment member, causing the abutment member to abut against the bottom surface of the atomizing plate. As an improvement to the above solution, the atomizing plate has micropores that extend through the front and back, and the abutting member has an abutting surface. When the abutting member abuts against the atomizing plate, the abutting surface can block the micropores.

[0009] As an improvement to the above solution, the sealing component is integrally formed from silicone, rubber, thermoplastic elastomer, metal microporous sintered felt, carbon fiber / glass fiber woven felt, soft fiber layer or closed-cell fluoroelastomer microfoam sheet.

[0010] As an improvement to the above solution, the elastic support is a metal sheet or spring, and the abutment is made of silicone, rubber, thermoplastic elastomer, metal microporous sintered felt, carbon fiber / glass fiber woven felt, soft fiber layer or closed-cell fluoroelastomer microfoam sheet.

[0011] As an improvement to the above solution, the positioning frame includes a connecting seat for connecting to the liquid supply port, the connecting seat has the mounting seat in the center, the mounting seat is connected to the connecting seat through a connecting arm, and a first liquid passage space is formed between the mounting seat and the connecting seat.

[0012] As an improvement to the above solution, the mounting base has a recessed portion on the front for placing the sealing component, and a second liquid passage space in the center.

[0013] As an improvement to the above solution, the bottom surface of the atomizing plate is a concave arc surface, and the abutting surface matches the concave arc surface.

[0014] As an improvement to the above solution, the elastic support includes a bottom ring and a support arm, the abutment is disc-shaped, the abutment and the bottom ring are located at different axial positions, and the support arm is circumferentially distributed and connected to the bottom ring and the abutment.

[0015] As an improvement to the above solution, the bottom ring includes an annular body, a first convex ring and a second convex ring disposed at the bottom of the annular body, and a third convex ring disposed at the top of the annular body. The first convex ring and the third convex ring are both disposed at the edge of the annular body, and the diameter of the first convex ring is smaller than the diameter of the second convex ring.

[0016] As an improvement to the above solution, a limiting sealing ring is provided between the connecting seat and the atomizing plate, and the connecting seat and the atomizing plate clamp the limiting sealing ring to maintain a preset installation distance.

[0017] As an improvement to the above solution, the preset installation distance enables the closure to be pre-compressed, with a pre-compression amount of 0.05mm-5mm.

[0018] Accordingly, this invention also provides an ultrasonic atomizer, including a liquid supply channel and an air outlet channel, wherein an ultrasonic atomization module as described above is provided between the liquid supply channel and the air outlet channel.

[0019] As an improvement to the above solution, the liquid supply channel is connected to the medicine bottle, and the air outlet channel is provided with an air outlet at its end.

[0020] Implementing the embodiments of the present invention has the following beneficial effects: (1) Completely solve the static leakage problem and achieve zero leakage sealing.

[0021] This invention provides a sealing element consisting of an elastic support and an abutment on the liquid supply side of the atomizing plate. A preset pre-compression is applied to the sealing element, ensuring that the abutment remains tightly fitted to the bottom surface of the atomizing plate under static conditions. The abutment is made of a flexible material with low compression set; its contact surface undergoes micro-elastic deformation under pre-pressure, forming a conformal contact with the microporous area on the bottom surface of the atomizing plate, completely covering the micropores. Since this seal acts directly on the liquid outlet side of the atomizing plate, it physically blocks the only path for liquid to leak out through the micropores. Therefore, regardless of positive osmotic pressure generated on the liquid supply side due to capillary action, pressure fluctuations caused by temperature changes, or tilting or inverting of the equipment, the liquid cannot overcome the sealing contact force and leak out, fundamentally cutting off the leakage channel and significantly improving the cleanliness and safety of the product.

[0022] (2) The vibration energy is used to start the machine and realize the intelligent dynamic switching of "sealing-liquid supply-sealing".

[0023] The high-frequency vibration of the atomizing plate serves as both the energy source for atomization and the driving force for opening the seal; these two functions are coupled, requiring no additional control components. When the atomizing plate is energized and generates high-frequency longitudinal vibration, the vibrational energy is transferred to the contact component through the contact surface. When the instantaneous impact force generated by the vibration exceeds the sum of the restoring force of the elastic support and the surface tension of the liquid, the contact component undergoes a microscopic "bouncing" or "lifting" within each vibration cycle, forming a micron-level transient gap between the contact component and the atomizing plate. The liquid from the supply side rapidly flows in and atomizes under the influence of gravity and the positive pressure of the storage chamber. The liquid supply rate is determined by the vibration frequency, power, and stiffness of the elastic support, macroscopically manifesting as a continuous and stable atomization output. When the atomizing plate stops vibrating and the impact force disappears, the contact component quickly resets under the restoring force of the elastic support, re-adhering tightly to the atomizing plate and instantly cutting off the liquid path. The entire switching process is automatically triggered by vibrational energy, with a rapid response and no additional energy consumption, achieving intelligent dynamic management of "sealing-liquid supply-sealing".

[0024] (3) Simplify the structure and assembly to reduce supply chain costs.

[0025] This invention does not rely on specific specifications of cotton cores or fiber ropes or other liquid guiding materials. The liquid circuit system consists of only three core components: a positioning frame, a sealing component, and an atomizing plate. During assembly, simply placing the sealing component into the mounting base and controlling the installation distance through the limiting sealing ring completes the pre-pressure positioning, effectively reducing the complexity and cost of supply chain management.

[0026] (4) Extend the service life of the module.

[0027] The contact element maintains a sealed contact with the atomizing plate under static conditions, preventing liquid from prolonged immersion in the micropores, which could lead to crystallization, microbial growth, or pore blockage. Simultaneously, the elastic support element exhibits excellent fatigue resistance, while the contact element possesses low compression set and good chemical corrosion resistance, maintaining stable elasticity and sealing performance, effectively extending product lifespan. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of an embodiment of an ultrasonic atomization module according to the present invention; Figure 2 This is a schematic diagram showing the fitting relationship between the sealing component and the atomizing plate of the present invention; Figure 3 This is a cross-sectional view of an embodiment of an ultrasonic atomizing module of the present invention; Figure 4 This is a schematic diagram of the positioning frame of the present invention; Figure 5 This is a schematic diagram of the structure of the closure component of the present invention; Figure 6 This is a structural schematic diagram of the closure component of the present invention from another perspective; Figure 7 This is a schematic diagram of the structure of an ultrasonic atomizer according to the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0030] Example 1: Ultrasonic Atomization Module Please see Figures 1-6 The first embodiment of the present invention provides an ultrasonic atomizing module 100, including a positioning frame 10, a sealing member 20, and an atomizing plate 30. The positioning frame 10 is disposed on the liquid supply side (i.e., the liquid inlet side of the atomizing plate 30) of the atomizing plate 30, and is used to position and install the sealing member 20 between the atomizing plate 30 and the liquid supply source.

[0031] The atomizing plate 30 is formed by bonding a piezoelectric ceramic layer with a stainless steel membrane with micropores 31, which extend through the atomizing plate 30 from front to back. By applying a high-frequency electrical signal to the piezoelectric ceramic, the atomizing plate 30 generates high-frequency mechanical vibration, which breaks the liquid flowing to its surface into micron-sized aerosol particles.

[0032] The positioning frame 10 is provided with a liquid passage space that allows liquid to flow to the atomizing plate 30, and a mounting base 11 for fixing the sealing member 20. The sealing member 20 is disposed in the mounting base 11 and includes an elastic support member 21 and an abutment member 22. The elastic support member 21 provides elastic force to the abutment member 22, so that the abutment member 22 abuts against the bottom surface of the atomizing plate 30 in a static state, physically sealing the micropores 31.

[0033] like Figure 4 As shown, the positioning frame 10 includes a connecting seat 12 for connecting to the liquid supply port. A mounting seat 11 is located at the center of the connecting seat 12. The mounting seat 11 is connected to the connecting seat 12 via a connecting arm 13, forming a first liquid passage space 14 between the mounting seat 11 and the connecting seat 12. The mounting seat 11 has a recess 15 on its front side for placing the sealing member 20, and a second liquid passage space 16 in its center. The first liquid passage space 14 allows liquid flowing from the liquid supply port to pass through the positioning frame 10, directly reaching the front side of the sealing member 20 via its side. The second liquid passage space 16 guides the liquid to the bottom surface of the sealing member 20, passing through the gap between the elastic support member 21 and the abutment member 22 to reach the front side of the abutment member 22. The two work together to provide a stable liquid for the atomization process.

[0034] A limiting sealing ring 40 is provided between the connecting seat 12 and the atomizing plate 30. The connecting seat 12 and the atomizing plate 30 clamp the limiting sealing ring 40 to maintain a preset installation distance. This preset installation distance causes the sealing member 20 to be pre-compressed, with the pre-compression amount ranging from 0.05mm to 5mm. The preset pre-compression amount ensures that there is sufficient initial sealing pressure between the abutment member 22 and the atomizing plate 30.

[0035] In this embodiment, the sealing member 20 is integrally molded from silicone and includes an elastic support member 21 and an abutment member 22. The elastic support member 21 is elastic, and the abutment member 22 has a disc-shaped structure; the two are integrally molded. The abutment member 22 has an abutment surface 221, which is used to abut against the bottom surface of the atomizing sheet 30. Due to the good elasticity of the silicone material itself, the elastic support member 21 can provide a stable elastic recovery force for the abutment member 22. At the same time, when the abutment member 22 abuts against the atomizing sheet 30, it can tightly cover the bottom surface of the atomizing sheet 30, reliably sealing the micropores 31. It is understood that the sealing member 20 can also be integrally molded from rubber, thermoplastic elastomer, metal microporous sintered felt, carbon fiber / glass fiber woven felt, soft fiber layer, or closed-cell fluoroelastomer microfoam sheet.

[0036] In another embodiment, the elastic support 21 of the closure 20 is a metal spring, and the abutment 22 is made of silicone. The metal spring can provide more stable elastic force to meet the rapid liquid replenishment requirements of the atomizing plate 30 under high-frequency vibration; the silicone abutment 22 has good elasticity and weather resistance, and can reliably re-close the atomizing plate 30 after long-term vibration.

[0037] In a preferred embodiment, the bottom surface of the atomizing plate 30 is a concave arc surface, and the abutment surface 221 matches this concave arc surface. The abutment surface 221 is positioned with the bottom surface of the atomizing plate 30 through its own concave structure, ensuring that it can maintain accurate positioning when it is pushed by the vibration of the atomizing plate 30. The distance between the abutment surface 221 and the atomizing plate 30 is equal everywhere, so that the liquid can be evenly replenished between the two.

[0038] Combination Figure 5 and Figure 6 As shown, the elastic support 21 includes a bottom ring 211 and a support arm 212, and the abutment 22 is disc-shaped. The abutment 22 and the bottom ring 211 are located at different axial positions, and the support arm 212 is circumferentially evenly distributed and connects the bottom ring 211 and the abutment 22. The bottom ring 211 is disposed in the recess 15 to position the elastic support 21, and the abutment 22 and the bottom ring 211 are located at different axial positions, so that the support arm 212 is inclinedly connected, which has compression stability within the designed compression range.

[0039] The bottom ring 211 further includes an annular body 213, a first protruding ring 214 and a second protruding ring 215 disposed at the bottom of the annular body 213, and a third protruding ring 216 disposed at the top of the annular body 213. Both the first protruding ring 214 and the third protruding ring 216 are disposed along the edge of the annular body 213, with the diameter of the first protruding ring 214 being smaller than the diameter of the second protruding ring 215. By setting the first protruding ring 214 and the second protruding ring 215 with different diameters, when the bottom ring 211 undergoes slight deformation under pressure, the annular body 213 tilts towards the center, and the first protruding ring 214 remains in contact with the recessed portion 15, ensuring that the annular body 213 does not shift. The second protruding ring 215 and the third protruding ring 216 can increase the thickness of the edge of the annular body 213, allowing the annular body 213 to deform uniformly towards its outer edge when the support arm 212 transmits pressure to it, providing partial restoring force for the support arm 212 and extending the service life of the elastic support member 21.

[0040] Example 2: Ultrasonic Nebulizer Please see Figure 7 The second embodiment of the present invention provides an ultrasonic atomizer, including a liquid supply channel 201, an air outlet channel 202, and an ultrasonic atomization module 100 as described in Embodiment 1 disposed between the liquid supply channel 201 and the air outlet channel 202.

[0041] The liquid supply channel 201 is connected to the medicine bottle 203 and is used to guide the liquid medicine to the liquid supply side of the ultrasonic atomization module 100. The air outlet channel 202 is provided with an air outlet 204 at its end, and the atomized medicine mist is discharged from the air outlet 204 through the air outlet channel 202.

[0042] When the atomizing plate 30 is not energized, the abutment 22 is tightly fitted to the bottom surface of the atomizing plate 30 under the elastic force of the elastic support 21, sealing the micropores 31 and preventing leakage of the liquid. When the atomizing plate 30 is energized and vibrates, the abutment 22 undergoes micro-bounce under the vibration impact, opening the liquid supply channel, and the liquid enters the surface of the atomizing plate 30 and is atomized; when atomization stops, the abutment 22 quickly resets, restoring the seal.

[0043] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An ultrasonic atomizing module, characterized in that, Includes positioning frame, sealing component and atomizing plate, The positioning frame is mounted on the liquid supply side of the atomizing plate. The positioning frame is provided with a liquid passage space that allows liquid to flow to the atomizing plate, and a mounting base for fixing the sealing component. The closure is disposed in the mounting base and includes an elastic support and an abutment. The elastic support provides elastic force to the abutment, so that the abutment abuts against the bottom surface of the atomizing plate.

2. The ultrasonic atomizing module as described in claim 1, characterized in that, The atomizing plate has micropores that extend from front to back, and the abutting member has an abutting surface. When the abutting member abuts against the atomizing plate, the abutting surface can block the micropores.

3. The ultrasonic atomizing module as described in claim 2, characterized in that, The sealing component is integrally molded from silicone, rubber, thermoplastic elastomer, metal microporous sintered felt, carbon fiber / glass fiber woven felt, soft fiber layer or closed-cell fluoroelastomer microfoam sheet.

4. The ultrasonic atomizing module as described in claim 2, characterized in that, The elastic support is a metal sheet or spring, and the abutment is made of silicone, rubber, thermoplastic elastomer, metal microporous sintered felt, carbon fiber / glass fiber woven felt, soft fiber layer or closed-cell fluoroelastomer microfoam sheet.

5. The ultrasonic atomizing module as described in claim 1, characterized in that, The positioning frame includes a connecting seat for connecting to the liquid supply port, and the mounting seat is provided in the center of the connecting seat. The mounting seat is connected to the connecting seat through a connecting arm, and a first liquid passage space is formed between the mounting seat and the connecting seat.

6. The ultrasonic atomizing module as described in claim 5, characterized in that, The mounting base has a recessed portion on the front for placing the sealing component, and a second liquid passage space in the center; the bottom surface of the atomizing plate is a concave arc surface, and the abutting surface matches the concave arc surface.

7. The ultrasonic atomizing module as described in claim 1, characterized in that, The elastic support includes a bottom ring and a support arm. The abutment is disc-shaped. The abutment and the bottom ring are located at different axial positions. The support arm is circumferentially distributed and connected to the bottom ring and the abutment.

8. The ultrasonic atomizing module as described in claim 7, characterized in that, The bottom ring includes an annular body, a first convex ring and a second convex ring disposed at the bottom of the annular body, and a third convex ring disposed at the top of the annular body. The first convex ring and the third convex ring are both disposed at the edge of the annular body, and the diameter of the first convex ring is smaller than the diameter of the second convex ring.

9. The ultrasonic atomizing module as described in claim 5, characterized in that, A limiting sealing ring is provided between the connecting seat and the atomizing plate. The connecting seat and the atomizing plate clamp the limiting sealing ring to maintain a preset installation distance. The preset installation distance enables the sealing component to form a pre-compression, with a pre-compression amount of 0.05mm-5mm.

10. An ultrasonic atomizer, characterized in that, It includes a liquid supply channel and an air outlet channel, and an ultrasonic atomizing module as described in any one of claims 1-9 is provided between the liquid supply channel and the air outlet channel; the liquid supply channel is connected to a medicine bottle, and an air outlet is provided at the end of the air outlet channel.

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