An ultrasonic atomization device and an electronic atomization apparatus

Abstract

This application discloses an ultrasonic atomizing device and an electronic atomizing apparatus. The ultrasonic atomizing device includes a housing, a nozzle, and an ultrasonic atomizing assembly. The housing has a storage chamber for storing atomized liquid; the nozzle is located at one end of the housing, and has a first atomizing channel communicating with the storage chamber; the ultrasonic atomizing assembly includes an atomizing plate and a liquid guiding rod. The atomizing plate is disposed in the first atomizing channel, and one end of the liquid guiding rod abuts against the atomizing plate, while the other end extends into the storage chamber. The liquid guiding rod is partially housed within the first atomizing channel, forming an annular gap with the inner wall of the channel. The cross-sectional area of ​​the annular gap gradually decreases from the end closer to the storage chamber to the end farther away. Through this structural design, this application can effectively utilize the adsorption properties of the liquid guiding rod to absorb the liquid within the gap, preventing leakage of the atomized liquid when the device is inverted or shaken, significantly improving the user experience.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and in particular to an ultrasonic atomizing device and an electronic atomization equipment. Background Technology

[0002] Electronic atomizing devices are products that convert atomized liquid into aerosols for users to inhale through heating or ultrasonic vibration. They are popular among consumers because of their portability and variety of flavors.

[0003] Ultrasonic atomizing devices in related technologies typically utilize a liquid guide rod (such as a cotton swab) to conduct the atomizing liquid in the reservoir to the surface of the ultrasonic atomizing plate, where high-frequency vibration of the atomizing plate achieves atomization. To fix the liquid guide rod and isolate the reservoir from the external environment, the liquid guide rod is usually inserted into a channel. However, in practical use, the device often faces situations such as being placed upside down or on its side. In related technologies, the mating structure between the liquid guide rod and the channel is relatively simple and does not fully consider the driving effect of gravity and internal air pressure changes on the liquid.

[0004] Therefore, when the device is placed upside down, the atomizing liquid in the reservoir is prone to seeping out along the gap between the guide rod and the inner wall of the channel under the influence of gravity, causing the atomizing liquid to leak directly from the nozzle. This not only wastes the atomizing liquid but may also damage the internal circuitry of the device due to leakage, seriously affecting the user experience. How to solve the leakage problem of ultrasonic atomizing devices in scenarios such as when placed upside down is an urgent technical problem that needs to be solved. Utility Model Content

[0005] This application provides an ultrasonic atomizing device, including a housing, a nozzle, and an ultrasonic atomizing assembly. The housing has a storage chamber for storing atomizing liquid; the nozzle is located at one end of the housing, and has a first atomizing channel communicating with the storage chamber; the ultrasonic atomizing assembly includes an atomizing plate and a guide rod, the atomizing plate being disposed in the first atomizing channel; one end of the guide rod abuts against the atomizing plate, and the other end extends into the storage chamber. The guide rod is partially housed within the first atomizing channel and forms an annular gap with the inner wall of the first atomizing channel, the cross-sectional area of ​​which gradually decreases from the end closer to the storage chamber to the end farther away from the storage chamber.

[0006] In one embodiment, the ultrasonic atomizing device further includes a sealing assembly, which includes a first sealing ring and a sealing cylinder. The first sealing ring is located at the end of the first atomizing channel away from the liquid storage chamber; the sealing cylinder is embedded in the nozzle and has the first atomizing channel; wherein, the atomizing plate is located between the first sealing ring and the sealing cylinder.

[0007] In one embodiment, the inner wall of the first atomizing channel is a conical slope; the liquid guide rod is cylindrical, and the diameter of the liquid guide rod is equal to the inner diameter of the end of the first atomizing channel away from the liquid storage chamber.

[0008] In one embodiment, the volume of the annular gap is smaller than the volume of the portion of the liquid guide rod located within the first atomizing channel, so that the liquid guide rod can adsorb the atomized liquid filling the annular gap, thereby blocking the atomized liquid from flowing out through the first atomizing channel.

[0009] In one embodiment, the ultrasonic atomizing device further includes a fixing frame disposed within the housing; the fixing frame has a through hole; wherein, the sealing cylinder is clamped and fixed between the suction nozzle and the fixing frame; the through hole connects the liquid storage chamber and the first atomizing channel; one end of the liquid guide rod passes through the through hole and extends into the liquid storage chamber.

[0010] In one embodiment, the mounting bracket is further provided with a pressure relief hole; the pressure relief hole connects the liquid storage cavity and the interior of the through hole to form at least part of an airflow channel that balances the air pressure inside and outside the liquid storage cavity.

[0011] In one embodiment, the sealing assembly further includes a liquid injection plug, and a liquid injection hole is provided on the side wall of the fixing frame; wherein, an opening corresponding to the liquid injection hole is provided on the housing; the liquid injection plug is detachably sealed to the liquid injection hole; and the pressure relief hole is configured to allow gas in the liquid storage chamber to be discharged when the liquid injection plug seals the liquid injection hole.

[0012] In one embodiment, the sealing assembly further includes a second sealing ring; the second sealing ring is sandwiched between the fixture and the nozzle along the radial direction of the ultrasonic atomizing device.

[0013] In one embodiment, the ultrasonic atomizing device further includes a power module; wherein the power module is disposed within the housing at one end away from the nozzle; the power module includes a battery and a circuit board, the circuit board being electrically connected to the battery and the ultrasonic atomizing assembly, for providing operating power and control signals to the ultrasonic atomizing assembly.

[0014] The second aspect of this application provides an electronic atomizing device, including a heating atomizing device and an ultrasonic atomizing device provided in the first aspect of this application; wherein, the mouthpiece is provided with a second atomizing channel, and the second atomizing channel and the first atomizing channel are independent of each other and arranged side by side.

[0015] The beneficial effects of the technical solution provided in this application are as follows: This application constructs an annular gap between the inner wall of the first atomizing channel and the liquid guiding rod, and specifically designs the cross-sectional area of ​​the annular gap to gradually decrease from bottom to top, forming a conical-like contraction structure. This structure, on the one hand, creates a tighter fit at the end near the atomizing plate, structurally preventing liquid outflow; on the other hand, combined with the adsorption properties of the liquid guiding rod itself, this gradually contracting gap structure ensures that the liquid entering the gap is effectively adsorbed and locked by the liquid guiding rod, effectively solving the inverted leakage problem in the prior art. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an ultrasonic atomizing device provided in this application from an angle; Figure 2 yes Figure 1 Cross-sectional view of the ultrasonic atomizing device along direction II; Figure 3 yes Figure 2 A magnified view of a portion of the ultrasonic atomizing device in area A; Figure 4 yes Figure 1 Exploded view of the ultrasonic atomizing device at the nozzle; Figure 5 yes Figure 1 A schematic diagram of the housing of the ultrasonic atomizing device from one angle; Figure 6 yes Figure 1 Exploded view of the ultrasonic atomizing device at the mounting bracket; Figure 7 yes Figure 1 A schematic diagram of the fit between the mounting bracket and the second sealing ring of the ultrasonic atomizing device; Figure 8 yes Figure 1 Exploded view of the bottom of the ultrasonic atomizing device.

[0018] Figure label: 10. Ultrasonic atomizing device; 100. Housing; 110. Opening; 120. Fixing part; 130. Air inlet; 140. Clamping plate; 150. Transition cavity; 200. Nozzle; 211. First air outlet; 212. Second air outlet; 221. First atomization channel; 222. Second atomization channel; 310. Atomizing plate; 320. Liquid guide rod; 330. Spring; 411. First sealing ring; 412. Second sealing ring; 4121. Communicating hole; 420. Sealing cylinder; 421. First sealing part; 422. Second sealing part; 431. First sealing cover; 432. Second sealing cover; 440. Injection plug; 450. Sealing plug; 451. Plug body; 452. Connecting strip; 500, Fixing frame; 511, First liquid storage chamber; 512, Second liquid storage chamber; 520, Through hole; 530, Pressure relief hole; 540, Liquid injection hole; 550, Gas delivery hole; 560, Gas delivery pipe; 561, Gas delivery channel; 570, Liquid suction component; 600. Heating atomization equipment; 710. Battery; 720. Circuit board; 730. Covering; 740. Bracket; 741. Battery compartment. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] The directional terms used in this description, such as "up," "down," "left," "right," "inner," and "outer," are only for reference to the directions shown in the attached diagram. These directional terms should be changed if the directions in the attached diagram change.

[0022] The first aspect of this application provides an ultrasonic atomizing device 10, please refer to... Figures 1 to 4 .

[0023] like Figure 1 and Figure 2 As shown, the ultrasonic atomizing device 10 includes a housing 100. The housing 100 serves as the main support structure of the device, and its interior is provided with a liquid storage chamber for storing the atomizing liquid. Specifically, in this embodiment, the housing 100 has two independent liquid storage spaces: a first liquid storage chamber 511 located above and a second liquid storage chamber 512 located below. It should be noted that this application does not strictly limit the specific number of liquid storage chambers; in other embodiments, a single chamber or more liquid storage chambers may be provided according to actual needs.

[0024] The ultrasonic atomizing device 10 also includes a suction nozzle 200. The suction nozzle 200 is located at one end of the housing 100 (the top as shown in the figure) for the user to draw in air. The suction nozzle 200 has a first atomization channel 221 inside, which is connected to the first liquid storage chamber 511 for transferring the atomized aerosol.

[0025] Meanwhile, the ultrasonic atomizing device 10 also includes an ultrasonic atomizing assembly, which mainly includes an atomizing plate 310 and a liquid guiding rod 320. The atomizing plate 310 is disposed in the first atomizing channel 221, and one end of the liquid guiding rod 320 abuts against the atomizing plate 310, while the other end extends downward into the first liquid storage chamber 511. Specifically, the inner wall of the first atomizing channel 221 is a conical slope, and the liquid guiding rod 320 is cylindrical; the liquid guiding rod 320 is partially housed in the first atomizing channel 221, forming an annular gap with the inner wall of the first atomizing channel 221. Based on the above structure, the cross-sectional area of ​​the annular gap gradually decreases from the end near the first liquid storage chamber 511 to the end away from the first liquid storage chamber 511. In one embodiment, to prevent direct liquid outflow, the diameter of the liquid guiding rod 320 is equal to the inner diameter of the end of the first atomizing channel 221 away from the first liquid storage chamber 511, thereby forming a tight fit at the end near the atomizing plate 310. The function of the ultrasonic atomizing component is to guide the atomized liquid in the first liquid storage chamber 511 to the surface of the atomizing plate 310 using the liquid guide rod 320, and to disperse the liquid into micron-sized aerosols through the high-frequency vibration of the atomizing plate 310.

[0026] In one embodiment, the atomizing liquid stored in the first liquid reservoir 511 for use by the ultrasonic atomizing component mainly consists of water, and may also include cooling materials such as mint, mainly to provide users with a moist and cool suction experience.

[0027] In addition, the ultrasonic atomizing device 10 may also include a sealing assembly. The sealing assembly is used to cooperate with any of the nozzle 200, the housing 100, and the ultrasonic atomizing assembly to form a sealing structure inside the device or at the joints of the components, preventing the atomized liquid in the reservoir from leaking to the outside of the device.

[0028] Furthermore, the ultrasonic atomizing device 10 may also be provided with a pressure relief channel. This pressure relief channel connects the liquid storage chamber (specifically, the first liquid storage chamber 511 in this embodiment) to the external space. The main function of the pressure relief channel is to discharge the compressed gas in the first liquid storage chamber 511. Specifically, when the gas pressure in the first liquid storage chamber 511 increases due to external operations (such as the liquid injection and sealing process) or environmental changes, the excess gas can be discharged in time through the pressure relief channel, thereby balancing the gas pressure inside and outside the chamber and preventing the atomizing liquid from abnormally overflowing from the atomizing plate 310 or the seal due to excessive gas pressure.

[0029] Continue reading Figures 1 to 4To ensure the sealing performance and atomization efficiency of the ultrasonic atomizing assembly during operation, in one embodiment, the sealing assembly may include a first sealing ring 411 and a sealing cylinder 420. These two components are typically made of elastic soft materials such as silicone or rubber, which not only provide a physical seal but also absorb mechanical noise generated by the high-frequency vibration of the atomizing plate 310 to a certain extent.

[0030] The specific fit is as follows: the first sealing ring 411 is located at the end of the first atomizing channel 221 away from the first liquid storage chamber 511 (i.e., the top end), while the sealing cylinder 420 is embedded inside the nozzle 200. The atomizing plate 310 is sandwiched between the first sealing ring 411 and the sealing cylinder 420. This clamping structure has the following two advantages: on the one hand, by utilizing the interference fit of the soft rubber, it can effectively prevent the atomized liquid or aerosol from overflowing from the side gaps of the atomizing plate 310, ensuring that the atomized product can only be transported upward along the preset path; on the other hand, this structure stably defines the position of the atomizing plate 310, keeping it in a horizontal position and avoiding the atomization effect being affected by vibration and displacement.

[0031] Furthermore, the sealing cylinder 420 structurally serves a sealing function. Extending axially, the hollow internal structure of the sealing cylinder 420, together with the liquid guide rod 320, forms the first atomization channel 221. The upper part of the liquid guide rod 320 extends into and passes through the sealing cylinder 420, and the inner wall of the sealing cylinder 420 surrounds the outer circumference of the liquid guide rod 320; the annular gap formed between them is the path for aerosol flow. At the top of the suction nozzle 200, the inner wall of the suction nozzle 200 and the first sealing ring 411 together form the first air outlet 211. The first air outlet 211 and the first atomization channel 221 within the sealing cylinder 420 are coaxially aligned and connected in the vertical direction, thus forming a smooth, straight-through air path. This helps reduce condensation and wall adhesion of aerosols during transmission, increasing the mist output.

[0032] In one embodiment, to ensure the continuous stability of the ultrasonic atomization process, the ultrasonic atomization assembly further includes a spring 330. For example... Figure 2 and Figure 4 As shown, spring 330 is located at the bottom of liquid guide rod 320. In the assembled state, spring 330 is in a compressed and energy-storing state, constantly applying a resisting force towards atomizing plate 310 to liquid guide rod 320. Considering the potential dimensional shrinkage or subsidence of liquid guide rod 320 (typically made of microporous cotton) under long-term immersion or vibration conditions, the continuous pressing of spring 330 ensures that the top surface of liquid guide rod 320 is always in close contact with the lower surface of atomizing plate 310, thereby ensuring that the atomized liquid can be continuously supplied to atomizing plate 310 through capillary action, avoiding "dry burning" or atomization interruption due to poor contact.

[0033] In one embodiment, to address the potential leakage problem that may occur when the ultrasonic atomizing device 10 is placed upside down, on its side, or shaken, the annular gap formed between the liquid guide rod 320 and the sealing cylinder 420 can be specially designed. Specifically, the volume of the annular gap can be set to be smaller than the volume of the portion of the liquid guide rod 320 located within the first atomization channel 221.

[0034] The advantage of this design is that the structure fully utilizes the adsorption properties of the liquid guide rod 320 as a porous material. When the device is inverted, even if some atomized liquid enters the annular gap under gravity, the liquid guide rod 320 can adsorb and lock the liquid inside the annular gap because the capacity of this gap is smaller than the volume of the liquid guide rod 320 in that area. This volumetric fit ensures that the liquid inside the annular gap is unlikely to flow out.

[0035] In one embodiment, to balance the functions of preventing liquid leakage and gas-liquid exchange, the size of the annular gap can be limited. Optionally, the distance between the outer wall of the liquid guide rod 320 and the inner wall of the sealing cylinder 420 (i.e., the width of the annular gap) can be set to be greater than 0.5 mm. The advantages of this design are: on the one hand, this size can ensure that air can smoothly enter the first liquid storage chamber 511 through the gap to balance the negative pressure generated by the consumption of atomized liquid and avoid poor liquid guidance due to air resistance caused by the gap being too small; on the other hand, in conjunction with the aforementioned inverted conical structure, this gap can serve as a buffer area for the liquid, ensuring that the liquid is always within the effective adsorption range of the liquid guide rod 320.

[0036] In one embodiment, to further improve the leak-proof effect, the material density of the liquid guide rod 320 and the surface condition of the inner wall of the channel can be optimized.

[0037] Optionally, the liquid-conducting rod 320 can be made of cotton with a density between 0.10 g / cm³ and 0.5 g / cm³. The advantage of choosing this density range is that it balances the liquid-locking capacity and liquid-conducting speed of the liquid-conducting rod 320. If the density is too low, it may result in insufficient liquid absorption; if the density is too high, it may result in insufficient liquid supply.

[0038] In one embodiment, the inner wall of the first atomizing channel 221 (i.e., the inner surface of the sealing cylinder 420) can be configured as a rough surface, and its roughness is preferably greater than that of the surface of the liquid guide rod 320, for example, the surface roughness Ra value is between 0.1 μm and 3.2 μm. The advantage of this design is that by increasing the surface roughness of the inner wall of the first atomizing channel 221, and in conjunction with the inverted trapezoidal extrusion structure, the frictional resistance between the liquid and the inner wall of the first atomizing channel 221 can be significantly increased. When the device is inverted, the increased frictional force, combined with surface tension and the adsorption force of the liquid guide rod 320, can more effectively counteract the gravity of the liquid and prevent liquid leakage.

[0039] See Figure 6 and Figure 7 Furthermore, the ultrasonic atomizing device 10 also includes a mounting bracket 500. The mounting bracket 500, serving as an internal skeletal component, is installed inside the housing 100. The main function of the mounting bracket 500 is to physically divide and support the internal space of the device. Simultaneously, the mounting bracket 500 also defines at least a portion of the liquid storage chamber. Specifically, the mounting bracket 500 divides the inner cavity of the housing 100 into an upper ultrasonic atomizing chamber (for accommodating the sealing cylinder 420 and the ultrasonic atomizing assembly) and a lower first liquid storage chamber 511. This separation design helps to isolate circuit components (such as batteries and circuit boards) from the liquid storage area, thereby reducing the risk of short circuits due to leakage.

[0040] In one embodiment, the fixing frame 500 has a through hole 520. The through hole 520 penetrates the fixing frame 500 in a vertical direction. Figure 2 The liquid guide rod 320 passes through the through hole 520, thereby spanning the fixing frame 500 and connecting the upper atomizing plate 310 and the lower first liquid storage chamber 511. The diameter of the through hole 520 is designed to match the outer diameter of the liquid guide rod 320, allowing the liquid guide rod 320 to make a small axial displacement under the action of the spring 330, while also providing radial restraint to prevent it from tilting excessively when the device shakes.

[0041] In one embodiment, a liquid injection hole 540 is also provided on the side wall of the mounting bracket 500. The liquid injection hole 540 is directly connected to the first liquid storage chamber 511. This design enables the ultrasonic atomizing device 10 to have a refillable liquid function. The user can replenish the atomizing liquid into the first liquid storage chamber 511 through the liquid injection hole 540, thereby extending the service life of the device.

[0042] In one embodiment, to facilitate the injection operation, the housing 100 is provided with an opening 110 corresponding to the injection hole 540 (see...). Figure 5 The sealing assembly may also include an injection plug 440, which passes through the opening 110 and is removably sealed within the injection hole 540 to maintain a seal and prevent leakage. The injection plug 440 can be removed during injection.

[0043] In one embodiment, the mounting bracket 500 is further provided with a pressure relief hole 530. The pressure relief hole 530 is located adjacent to the through hole 520 and connects the first liquid storage chamber 511 with the space above the mounting bracket 500. The function of the pressure relief hole 530 is to balance the air pressure inside and outside the first liquid storage chamber 511. Specifically, the pressure relief hole 530 has a bidirectional air pressure balancing function: on the one hand, as the ultrasonic atomizing component works, the atomized liquid in the first liquid storage chamber 511 is gradually consumed, and negative pressure is easily formed in the chamber. The pressure relief hole 530 allows external air to enter the first liquid storage chamber 511 to fill the volume after the liquid is reduced, thereby maintaining the stability of the air pressure in the chamber and ensuring that the liquid guide rod 320 can continuously and stably draw atomized liquid; on the other hand, during the process of the injection plug 440 sealing the injection hole 540, the compressed gas in the first liquid storage chamber 511 can be discharged upward through the pressure relief hole 530, thereby avoiding the atomized liquid being forced out or leaking due to excessive instantaneous air pressure.

[0044] Regarding the specific structural form of the pressure relief hole 530, this application provides various embodiments. In one embodiment, the shape and cross-sectional area of ​​the pressure relief hole 530 are not strictly limited. Its cross-sectional shape can be circular, elliptical, polygonal, or irregular, as long as it can meet the requirements for airflow.

[0045] Preferably, in order to better adapt to the spatial layout of the top of the mounting bracket 500 and prevent liquid blockage, in one embodiment, the pressure relief hole 530 is designed as a rectangle (or a rectangular groove). Specifically, the long side and short side of the rectangular pressure relief hole 530 are both greater than or equal to 1 mm (or, the cross-sectional area of ​​the pressure relief hole 530 is at least 1 square millimeter). The reason for this size limitation is that if the size of the pressure relief hole 530 is too small, the atomized liquid is prone to form a liquid film due to surface tension and adhere to the orifice, leading to air path blockage and failure of the pressure relief function; while limiting the size within the above range can effectively overcome the surface tension of the atomized liquid, prevent liquid from adhering to the orifice, and thus ensure that the pressure relief hole 530 remains unobstructed under various operating conditions, ensuring the stability of the pressure relief and ventilation functions.

[0046] In addition, the mounting bracket 500 is provided with an air inlet 550. The air inlet 550 is mainly used for the passage of components of the heating atomization system (which will be described in detail in subsequent embodiments).

[0047] Continue reading Figure 2 , Figure 3 and Figure 4 In one embodiment, in order to further improve the sealing performance of the internal flow channel, the sealing cylinder 420 may have a special structural design, specifically including a first sealing part 421 located at the top and a second sealing part 422 located on the outside of the cylinder body.

[0048] The first sealing part 421 is located at the top of the sealing cylinder 420, and its end face directly abuts against the lower surface of the atomizing plate 310. Since the sealing cylinder 420 is usually made of elastic materials such as silicone, the first sealing part 421 will undergo a slight elastic deformation under assembly pressure, thereby forming a tight fit with the atomizing plate 310. This fit seals the outlet end of the first atomizing channel 221, ensuring that the atomized aerosol can only be discharged upward through the first air outlet 211, and will not enter the internal cavity of the nozzle 200 from the lower edge of the atomizing plate 310, effectively preventing the risk of internal short circuit or side leakage caused by the accumulation of condensate.

[0049] The second sealing part 422 is a flange structure (or stepped structure) extending outward from the outer wall of the sealing cylinder 420. This flange is clamped and fixed between the bottom surface of the suction nozzle 200 and the top surface of the fixing frame 500 along the height direction of the ultrasonic atomizing device 10. This "upper and lower clamping" fixing method has the following advantages: on the one hand, it locks the position of the sealing cylinder 420 in the axial direction, preventing it from shifting under the pressure of the liquid guide rod 320 or the spring 330; on the other hand, the flange deformed by pressure forms a reliable sealing interface at the connection between the suction nozzle 200 and the fixing frame 500, blocking the path of leakage of the atomized liquid along the outer wall of the sealing cylinder 420.

[0050] Furthermore, in one embodiment, the sealing assembly may also include a removable sealing plug 450. For example... Figure 3 and Figure 4 As shown, the sealing plug 450 is mainly composed of a plug body 451 and a connecting band 452.

[0051] The shape of the plug portion 451 is adapted to the first air outlet 211 on the nozzle 200. When the device is not in use (such as during transportation or carrying), the user can insert the plug portion 451 into the first air outlet 211. It should be noted that the bottom end of the plug portion 451 needs to be able to pass through the wall thickness of the nozzle 200, partially embedded in the inner hole of the first sealing ring 411, and form an interference fit with the first sealing ring 411. This "embedded" sealing design directly blocks the first air outlet 211 of the first atomization channel 221 from the outside, structurally cutting off the leakage path, thereby ensuring that the device can achieve a sealed state under various conditions.

[0052] To improve user experience and prevent accidental loss of the sealing plug 450 during use, in one embodiment, a fixing part 120 is provided on the exterior (e.g., the top side) of the housing 100. One end of the connecting strap 452 is integrally formed or fixedly connected to the plug body 451, while the other end is sleeved or fastened to the fixing part 120. With this securing structure, the sealing plug 450 is always suspended beside the housing 100, which is convenient for use at any time and avoids the inconvenience of losing accessories.

[0053] See Figure 2 , Figure 3 , Figure 6 and Figure 7 In one embodiment, the sealing assembly further includes a second sealing ring 412. The second sealing ring 412 has an annular structure and is fitted onto the outer periphery of the top of the mounting bracket 500. After the device is assembled, the second sealing ring 412 is located at the connection between the nozzle 200 and the mounting bracket 500. Specifically, the second sealing ring 412 is radially clamped between the inner wall surface of the nozzle 200 and the outer wall surface of the mounting bracket 500. Through this radial compression fit, the second sealing ring 412 fills the assembly gap between the nozzle 200 and the mounting bracket 500, thereby sealing the connection and preventing liquid or gas from leaking out from the joint.

[0054] Furthermore, to achieve a bottom seal of the liquid storage space, in one embodiment, the sealing assembly cooperating with the bracket 500 further includes a first sealing cap 431. For example... Figure 2 and Figure 6 As shown, the first sealing cap 431 is installed at the end of the fixture 500 away from the nozzle 200. The shape of the first sealing cap 431 is adapted to the shape of the opening at the bottom of the fixture 500, and its edge is tightly fitted to the inner wall of the fixture 500, thereby sealing the bottom opening of the fixture 500.

[0055] In this configuration, the structure of the first liquid storage chamber 511 is defined. The sidewalls of the first liquid storage chamber 511 are formed by the fixing frame 500, the top is defined by the sealing cylinder 420, the injection plug 440, and the upper structure of the fixing frame 500, and the bottom is defined by the first sealing cover 431. The first sealing cover 431 not only serves to seal and prevent leakage but also acts as a load-bearing component. Please refer to [link / reference]. Figure 2 The spring 330 at the bottom of the liquid guide rod 320 abuts against the upper surface of the first sealing cover 431 and the bottom end of the liquid guide rod 320, thereby providing a continuous upward support force for the liquid guide rod 320.

[0056] Please continue reading. Figure 2 , Figure 3 , Figure 6 and Figure 7 To address the pressure relief issue, in one embodiment, a first pressure relief channel is constructed, and a connecting hole 4121 is provided on the second sealing ring 412. The position of the connecting hole 4121 corresponds to the pressure relief hole 530 on the fixing frame 500. The pressure relief hole 530 and the connecting hole 4121 are sequentially connected, together forming the first pressure relief channel.

[0057] To receive and buffer the gas discharged from the first pressure relief channel, the ultrasonic atomizing device 10 also has a transition cavity 150 inside. Figure 3As shown, the transition cavity 150 is an internal cavity formed by multiple components. Specifically, the transition cavity 150 is defined by the inner wall of the housing 100, the outer wall of the fixing frame 500, and the inner wall of the nozzle 200. The transition cavity 150 is located in the peripheral area of ​​the second sealing ring 412 and is isolated from the first atomizing channel 221.

[0058] Based on the above structure, the specific airflow path of the first pressure relief channel is as follows: The first pressure relief channel is connected to the first liquid storage chamber 511 at its starting end and to the transition chamber 150 at its ending end. When the gas pressure in the first liquid storage chamber 511 increases (for example, during the process of the injection plug 440 sealing the injection hole 540), the compressed gas first enters the pressure relief hole 530 on the fixture 500 from the first liquid storage chamber 511; then, the gas passes through the pressure relief hole 530 and enters the connecting hole 4121 on the second sealing ring 412; finally, the gas is discharged into the transition chamber 150 through the connecting hole 4121.

[0059] The transition chamber 150 serves as a buffer and temporary storage space. On one hand, as a space relatively external to the outside, the transition chamber 150 can accommodate excess high-pressure gas discharged from the first liquid storage chamber 511, thereby quickly balancing the pressure difference inside and outside the first liquid storage chamber 511. On the other hand, in extreme cases (such as excessively drastic pressure fluctuations), if a small amount of atomized liquid overflows from the pressure relief hole 530 along with the gas, this overflowing atomized liquid will be guided into the transition chamber 150 for temporary storage, preventing it from flowing directly out of the housing 100 and soiling the user, and also preventing it from entering the first atomization channel 221 and affecting the atomization operation, thus greatly improving the safety and cleanliness of the device.

[0060] In one embodiment, to further improve the flexibility and reliability of air pressure regulation, the pressure relief channel may further include a second pressure relief channel. This second pressure relief channel is constructed using the mating gaps within the ultrasonic atomizing assembly.

[0061] For details, please refer to Figure 3 The sealing cylinder 420 is sleeved around the outer periphery of the liquid guide rod 320, and is located above the fixing frame 500. The inner wall of the sealing cylinder 420 and the outer wall of the liquid guide rod 320 are not completely sealed, but rather form an annular gap. This annular gap constitutes the main part of the second pressure relief channel. In one embodiment, to optimize airflow guidance while ensuring top sealing, the cross-sectional area of ​​the annular gap is designed to gradually decrease from the end near the first liquid storage chamber 511 (bottom end) to the end away from the first liquid storage chamber 511 (top end). This tapering design ensures unobstructed air intake at the bottom while preventing atomized liquid overflow at the top through a tighter fit.

[0062] The specific flow path of the second pressure relief channel is as follows: One end of the second pressure relief channel is connected to the pressure relief hole 530 on the fixing frame 500, and the other end extends upward to the atomizing plate 310. When high-pressure gas is generated in the first liquid storage chamber 511, the gas is discharged through the pressure relief hole 530. In addition to entering the aforementioned first pressure relief channel (flowing to the transition chamber 150), the gas can also be diverted into the second pressure relief channel. The gas flows upward along the annular gap between the liquid guide rod 320 and the sealing cylinder 420, and finally reaches the lower surface of the atomizing plate 310.

[0063] Because the atomizing plate 310 has several micropores (for ultrasonic atomization), these micropores, while able to block liquid from passing through by surface tension when not in operation, are sufficient to allow gas to pass through. Therefore, the gas rising along the annular gap can pass through the micropores on the atomizing plate 310 and the first air outlet 211 on the nozzle 200 in sequence, and is finally discharged directly into the external space.

[0064] By setting up a second pressure relief channel, this application utilizes the air permeability of the liquid guide rod 320 (usually made of porous cotton) and the assembly gap between components to construct an auxiliary venting path. This path complements the first pressure relief channel, greatly improving the pressure relief efficiency of the device during liquid injection or under severe pressure fluctuations, and effectively preventing liquid back-squeezing leakage caused by air path blockage.

[0065] It should be noted that the first and second pressure relief channels mentioned above are not only used to discharge the compressed gas, but also together constitute the ventilation system of the ultrasonic atomizing device 10.

[0066] When the ultrasonic atomizing component is working, the atomizing liquid in the first liquid storage chamber 511 is continuously consumed, causing the liquid level in the chamber to drop and generating negative pressure. At this time, external air can enter the first liquid storage chamber 511 in the opposite direction through the two paths mentioned above to replenish the air. Specifically, external air can enter the second pressure relief channel through the first air outlet 211 and the micropores of the atomizing plate 310, or enter the first pressure relief channel from the transition chamber 150 (the transition chamber is usually not an absolute vacuum and contains air). The air flows in the opposite direction along the original path and finally replenishes the first liquid storage chamber 511 through the pressure relief hole 530. This bidirectional ventilation design maintains the dynamic balance of air pressure inside and outside the first liquid storage chamber 511 at all times, effectively ensuring that the liquid guide rod 320 can smoothly and continuously transmit the atomizing liquid to the atomizing plate 310, thereby ensuring a stable atomization volume and avoiding dry burning or burnt smell due to insufficient liquid supply.

[0067] In order to provide the electrical energy and control signals required for the operation of the ultrasonic atomizing components (and possibly the heating atomizing system), in one embodiment, the ultrasonic atomizing device 10 may include a power supply module.

[0068] Please refer to the following: Figure 2 and Figure 8The power module includes a bracket 740 disposed at the bottom of the housing 100. The internal space of the bracket 740 defines a battery compartment 741 for mounting and securing the battery 710. To protect the battery 710 and prevent it from shifting or being damaged within the housing 100, the battery 710 is surrounded by a covering 730 (such as cushioning foam or insulating sticker). The battery 710, as an energy storage element, is electrically connected to the atomizing plate 310 to provide driving voltage.

[0069] The power module may also include a circuit board 720 for integrating control circuitry (such as a microcontroller, power drive chip, etc.). In this embodiment, the circuit board 720 is vertically disposed within the housing 100 along the height direction of the ultrasonic atomizing device 10. A clamping plate 140 is provided inside the device to securely fix the circuit board 720. Figure 2 As shown, the circuit board 720 is clamped between the clamping plate 140 and the side wall of the fixing frame 500. This clamping and fixing method saves space and ensures the stability of the circuit board 720. The clamping plate 140 and the housing 100 are fixedly connected by fasteners (such as screws) to realize the assembly of the whole component.

[0070] In addition, in order to achieve airflow triggering (such as detecting the suction action through the microphone) and to provide air for the atomization process, an air inlet 130 is provided at the bottom of the housing 100. External air can enter the device through the air inlet 130 and flow through the sensor area on the circuit board 720, thereby triggering the power module to control the ultrasonic atomization component to start working.

[0071] See Figure 2 and Figure 6 In one embodiment, the sealing assembly may further include a second sealing cap 432. The second sealing cap 432 is mounted at the bottom end of the mounting bracket 500 (i.e., below the first sealing cap 431). Structurally, the second sealing cap 432, the first sealing cap 431, and the lower sidewall of the mounting bracket 500 together define a second liquid storage chamber 512. The second liquid storage chamber 512 is provided independently of the first liquid storage chamber 511 and is used to store different types of atomizing liquids (e.g., atomizing liquids adapted for heated atomization), thereby enabling the device to store multiple media.

[0072] Furthermore, the ultrasonic atomizing device 10 may also include other heating atomizing systems (specific heating elements are not shown in detail in the figure, but are collectively referred to as heating atomizing systems) to cooperate with the second liquid storage chamber 512. In order to achieve independent transmission of heated atomized aerosol, a dedicated airflow channel is designed inside the device.

[0073] Combination Figure 3 , Figure 6 and Figure 7The mounting bracket 500 has an air supply hole 550. An air supply pipe 560 passes through the air supply hole 550 and vertically through the first liquid storage chamber 511. An air supply channel 561 is formed inside the air supply pipe 560, which connects the lower heating atomization area with the upper suction nozzle 200.

[0074] Correspondingly, in addition to the first atomizing channel 221 mentioned above, the nozzle 200 also has a second atomizing channel 222 arranged side by side, and a second air outlet 212 communicating with the second atomizing channel 222 is opened at the top of the nozzle 200. The top of the air supply tube 560 is inserted into the bottom of the nozzle 200 and docks with the second atomizing channel 222, thereby constructing a complete air outlet path that is independent of the ultrasonic atomization path.

[0075] Further, see Figure 3 A liquid-absorbing component 570 (such as absorbent cotton) is also provided at the connection between the gas delivery pipe 560 and the suction nozzle 200. The liquid-absorbing component 570 is arranged around the gas delivery channel 561 to absorb the condensate generated during the aerosol transmission process, preventing the condensate from accumulating and clogging the channel or being inhaled by the user.

[0076] With the above design, the atomized liquid in the second liquid storage chamber 512, after being heated and atomized, can be output through the gas delivery channel 561 and the second atomization channel 222, and then mixed with the ultrasonic atomized aerosol (such as low-temperature humidified gas) generated in the first liquid storage chamber 511 in the oral cavity or inhaled separately. This dual-system combination not only enriches the aerosol's texture but also alleviates the dryness caused by heating and atomization through the ultrasonic atomized liquid (such as peppermint water), significantly improving the user experience.

[0077] In summary, the ultrasonic atomizing device 10 provided in the first aspect of this application optimizes the cooperation relationship between the liquid guide rod 320 and the sealing cylinder 420 (i.e., the first atomizing channel 221) in the following three aspects: First, this application optimizes the material properties of the liquid guiding rod 320. By using a microporous cotton material and controlling the density of the liquid guiding rod 320 between 0.10 g / cm³ and 0.5 g / cm³, the liquid-locking capacity and liquid-guiding speed of the liquid guiding rod 320 are effectively balanced. The microporous structure within this density range can generate sufficient capillary force to adsorb and lock the liquid in the gaps, while ensuring smooth transmission of the atomized liquid during operation, avoiding insufficient liquid supply due to excessive density or liquid-locking failure due to insufficient density.

[0078] Secondly, this application features a special design for the structure and gap relationship of the sealing cylinder 420. By constructing a trapezoidal inner wall structure for the sealing cylinder 420, the volume of the annular gap is smaller than the volume of the liquid guide rod 320 in this region, ensuring that even in an inverted state, the atomized liquid entering the gap can be completely adsorbed by the liquid guide rod 320 due to its volume advantage. At the same time, the width of the annular gap is set to be greater than 0.5 mm, which serves as a buffer zone for the liquid, ensuring that the liquid is always within the effective adsorption range of the liquid guide rod 320, and also provides a sufficient breathing channel for gas-liquid exchange, preventing gas resistance caused by an excessively narrow gap from affecting the stability of the liquid guide.

[0079] Finally, this application modifies the surface roughness of the inner wall of the sealing cylinder 420. By increasing the roughness of the inner wall of the first atomizing channel 221 (preferably, making it greater than the surface roughness of the liquid guide rod 320), the frictional resistance of the liquid in the outflow path is significantly increased. When the device is inverted, this increased frictional resistance can help counteract the gravity of the liquid, further reducing the risk of liquid slipping and seeping out along the inner wall of the channel.

[0080] Through the above structural design, this application effectively solves the common problems of leakage caused by inverted placement, side placement, or shaking in the prior art, while ensuring normal liquid conduction and smooth air exchange of the ultrasonic atomizing device 10, and significantly improves the reliability of the product and the user experience.

[0081] Furthermore, a second aspect of this application provides an electronic atomizing device, including a heated atomizing device 600 and an ultrasonic atomizing device 10 according to any embodiment of the first aspect. The mouthpiece 200 has a second atomizing channel 222, which is independent of and arranged side-by-side with the first atomizing channel 221. The aerosol generated by the heated atomizing device 600 is transmitted to the second atomizing channel 222 through an air delivery channel 561 formed inside the air delivery pipe 560, and then inhaled by the user. This electronic atomizing device combines ultrasonic atomization and heated atomization, meeting diverse inhalation needs of users.

[0082] It should be noted that the terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. An ultrasonic atomizing device, characterized in that, include: The housing has an internal storage chamber for storing the atomizing liquid; A suction nozzle is disposed at one end of the housing, and the suction nozzle has a first atomization channel communicating with the liquid storage chamber; An ultrasonic atomizing assembly includes an atomizing plate and a liquid guiding rod. The atomizing plate is disposed in the first atomizing channel. One end of the liquid guiding rod abuts against the atomizing plate, and the other end extends into the liquid storage cavity. The liquid guide rod is partially housed in the first atomizing channel and forms an annular gap with the inner wall of the first atomizing channel. The cross-sectional area of ​​the annular gap gradually decreases from the end closer to the liquid storage cavity to the end farther away from the liquid storage cavity.

2. The ultrasonic atomizing device according to claim 1, characterized in that, The ultrasonic atomizing device further includes a sealing assembly, which comprises: A first sealing ring is located at the end of the first atomizing channel away from the liquid storage chamber; A sealing cylinder is embedded in the nozzle, and the sealing cylinder is provided with the first atomization channel; The atomizing plate is located between the first sealing ring and the sealing cylinder.

3. The ultrasonic atomizing device according to claim 2, characterized in that, The inner wall of the first atomizing channel is a conical inclined surface; The liquid guide rod is cylindrical, and its diameter is equal to the inner diameter of the end of the first atomizing channel away from the liquid storage chamber.

4. The ultrasonic atomizing device according to claim 3, characterized in that, The volume of the annular gap is smaller than the volume of the portion of the liquid guide rod located within the first atomizing channel, so that the liquid guide rod can adsorb the atomized liquid filling the annular gap, thereby blocking the atomized liquid from flowing out through the first atomizing channel.

5. The ultrasonic atomizing device according to claim 2, characterized in that, The ultrasonic atomizing device further includes a fixing frame disposed within the housing; the fixing frame has a through hole; The sealing cylinder is clamped and fixed between the suction nozzle and the fixing frame; The through hole connects the liquid storage chamber and the first atomizing channel; One end of the liquid guide rod passes through the through hole and extends into the liquid storage cavity.

6. The ultrasonic atomizing device according to claim 5, characterized in that, The mounting bracket is also provided with a pressure relief hole; the pressure relief hole connects the interior of the liquid storage chamber and the through hole to form at least part of an airflow channel that balances the air pressure inside and outside the liquid storage chamber.

7. The ultrasonic atomizing device according to claim 6, characterized in that, The sealing assembly also includes a liquid injection plug, and a liquid injection hole is provided on the side wall of the fixing frame; The housing has an opening corresponding to the injection hole; The injection plug is detachably sealed to the injection hole; The pressure relief hole is configured to allow gas in the reservoir to escape when the injection plug seals the injection hole.

8. The ultrasonic atomizing device according to claim 5, characterized in that, The sealing assembly further includes a second sealing ring; the second sealing ring is sandwiched between the fixing frame and the nozzle along the radial direction of the ultrasonic atomizing device.

9. The ultrasonic atomizing device according to claim 1, characterized in that, The ultrasonic atomizing device also includes a power module; The power module is located inside the housing at the end furthest from the nozzle. The power module includes a battery and a circuit board. The circuit board is electrically connected to the battery and the ultrasonic atomizing component, and is used to provide working power and control signals to the ultrasonic atomizing component.

10. An electronic atomizing device, characterized in that, include: Heated atomizing equipment; as well as The ultrasonic atomizing device according to any one of claims 1-9; The nozzle is provided with a second atomizing channel, which is independent of and arranged side by side with the first atomizing channel.

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