Atomizing device and humidifying equipment including the atomizing device

Abstract

The present invention relates to the field of atomization devices, and particularly to an atomization device and a humidifying device including the atomization device. It comprises a face cover, a mounting base, a bottom cover and an atomization module. The mounting base is provided with at least one hollow liquid guide column. A liquid guide outlet communicating with the hollow liquid guide column is formed on the surface of the mounting base corresponding to the top of the hollow liquid guide column. A liquid guide inlet is formed at the bottom and / or side wall of the hollow liquid guide column; a spray port is formed on the face cover corresponding to the position of the liquid guide outlet; the mounting base is detachably arranged in the inner cavity of the face cover, and the atomization module is arranged on the mounting base and located between the spray port and the liquid guide outlet; the bottom cover is provided with a liquid storage cavity, and a liquid inlet and a liquid discharge port communicating with the liquid storage cavity are formed on the bottom cover. The face cover and the bottom cover are detachably connected, and the hollow liquid guide column extends into the liquid storage cavity to improve the atomization efficiency.

Description

Technical Field

[0001] The present invention relates to the field of atomization devices, and particularly to an atomization device and a humidifying device including the atomization device. Background Art

[0002] In existing atomization devices, there are generally problems such as a wide particle size distribution of droplets, intermittent atomization output and easy blockage. For example, ultrasonic vibration atomization has high requirements for the amplitude control accuracy, and even a slight fluctuation will cause uneven droplet sizes; in the microporous extrusion type or capillary liquid absorption type structures, during high-frequency or intermittent spraying, flow pulsation and atomization interruption often occur due to the accumulation of liquid films in the channels and air pressure fluctuations, and scale adheres to the capillary columns and the inner walls of the channels, requiring frequent disassembly and cleaning, which reduces the usability and product life. Summary of the Invention

[0003] The first object of the present invention is to provide an atomization device with efficient and multi-stage microporous atomization.

[0004] The second object of the present invention is to provide a humidifying device with efficient and multi-stage microporous atomization.

[0005] The first object of the present invention is achieved as follows:

[0006] An atomization device includes a face cover, a mounting base, a bottom cover and an atomization module. The mounting base is provided with at least one hollow liquid guiding column. A liquid guiding outlet communicating with the hollow liquid guiding column is opened on the surface of the mounting base corresponding to the top of the hollow liquid guiding column. A liquid guiding inlet is opened at the bottom and / or side wall of the hollow liquid guiding column; a spray port is opened on the face cover corresponding to the position of the liquid guiding outlet; the mounting base is detachably arranged in the inner cavity of the face cover, and the atomization module is arranged on the mounting base and located between the spray port and the liquid guiding outlet; the bottom cover is provided with a liquid storage cavity, and a liquid inlet and a liquid outlet communicating with the liquid storage cavity are opened on the bottom cover. The face cover and the bottom cover are detachably connected, and the hollow liquid guiding column extends into the liquid storage cavity; a nano-scale fluorosilicon or silicon dioxide hydrophobic coating for reducing liquid adhesion and deposition is sprayed on the inner wall of the hollow liquid guiding column; the atomization module includes a coarsening layer, a refining layer and a microporous atomization layer. A transition cavity for buffering flow pulsation and stabilizing the flow field is provided between the coarsening layer and the refining layer, and a hydrophilic coating is arranged on the inner surface of the transition cavity.

[0007] The hollow liquid guiding column draws liquid from the bottom or side wall, and the liquid guiding outlet is aligned with the spray port, ensuring that the liquid is directly and stably delivered to the inlet of the atomization module, avoiding discontinuous atomization or output fluctuation caused by unstable water source supply in traditional humidifiers.

[0008] The transition cavity buffers the flow pulsation and maintains a stable flow field through the hydrophilic coating, making the liquid film distribution between the coarsening layer and the refining layer more uniform, and realizing the improvement of atomization efficiency.

[0009] Spraying a nano-scale fluorosilicon or silica hydrophobic coating on the inner wall of the hollow liquid guiding column can significantly reduce the adhesion of liquid to the column wall and mineral deposition, prevent the blockage of the liquid guiding channel, and extend the continuous operation time of the device in a hard water environment.

[0010] The face cover, mounting base, and bottom cover can all be disassembled separately, facilitating users to quickly clean or replace the atomization module, and reducing the maintenance difficulty and cost.

[0011] The coarsening layer initially breaks large liquid droplets, the refining layer further refines the mist droplets, and the final mist particle size distribution output by the microporous atomization layer is narrower and finer. This not only improves the air humidification uniformity but also avoids the "water accumulation on the ground" problem caused by the settlement of large water droplets.

[0012] No additional heating device is required, and atomization is completed by relying on microporous oscillation or air flow drive, with significantly lower energy consumption than the thermal evaporation design.

[0013] Compared with a centrifugal atomizer, it has no high-speed rotating components, a simpler structure, lower operating noise, and is more suitable for scenarios with noise requirements such as bedrooms and offices. Moreover, it adopts a low-temperature atomization method and has no risk of scalding.

[0014] The first object of the present invention can also be solved by the following technical measures:

[0015] Further, the thickness of the atomization module is 0.2 - 0.5 mm, and the height of the transition cavity is 50 - 100 μm; the coarsening layer is a porous metal plate with a pore diameter of 20 - 50 μm and a pore density of 100 - 300 pores / cm² or a porous ceramic with a pore diameter of 20 - 50 μm and a pore density of 100 - 300 pores / cm²; the refining layer is a nano-porous ceramic with a pore diameter of 1 - 5 μm and a pore density ≥ 1000 pores / cm² or a laser-drilled metal thin sheet with a pore diameter of 1 - 5 μm and a pore density ≥ 1000 pores / cm²; the microporous atomization layer is a nickel-based alloy thin sheet with a pore diameter of 0.5 - 5 μm and a pore density of 1000 - 10000 pores / cm², and the nickel-based alloy thin sheet is coated with a hydrophilic silica nano-coating with a thickness of 0.1 - 0.5 μm; the coarsening layer is fixed on the mounting base and is located above the liquid guiding outlet, the microporous atomization layer is located below the spray port, the refining layer is located between the coarsening layer and the microporous atomization layer, the microporous atomization layer is fixed to the refining layer by epoxy bonding glue or ultrasonic spot welding, and the refining layer is fixed to the coarsening layer by epoxy bonding glue or ultrasonic spot welding.

[0016] The overall atomization module is extremely thin (0.2 - 0.5 mm), ensuring a very small liquid film thickness. Combined with the high-density pores (1,000 - 10,000 pores / cm²) of the microporous layer (0.5 - 5 μm), the final output mist droplet particle size distribution is concentrated in the range of 1 - 5 μm, with a long suspension time and good humidification uniformity.

[0017] The roughening layer (20–50 μm, 100–300 pores / cm²) and the refining layer (1–5 μm, ≥1,000 pores / cm²) are cascaded, enabling the large-flow liquid film to be fully dispersed at the primary stage, ensuring that the micropores in the subsequent stage are not blocked due to sudden changes in flow rate, and thus achieving an overall atomization efficiency of ≥90%.

[0018] The precise control of the height of the transition cavity of 50–100 μm enables a smooth transition of the flow rate and pressure during the roughening → refining process, reducing pulsation and avoiding spray eccentricity or "raindrop" phenomena.

[0019] The nickel-based alloy microporous sheet is combined with a hydrophilic silica nanocoating, which has both mechanical strength, corrosion resistance and wettability, preventing pore wall deposition and material fatigue. The fixing methods of epoxy glue or ultrasonic spot welding ensure firm bonding of each layer without leakage.

[0020] The precise pore density / aperture range, as well as optional porous metal or ceramic materials, enable batch processing (laser drilling, ceramic sintering) to have good controllability, with small differences in single-piece performance and easy industrial production.

[0021] The total module thickness is <0.5 mm, with low fluid resistance, no need for high-pressure drive, and combined with passive shear atomization, significantly reducing power consumption and operating noise, meeting the household silent demand.

[0022] Furthermore, it also includes a piezoelectric stack actuator, a differential pressure sensor and a control circuit board for periodically applying high-frequency micro-vibrations to the atomization module to prevent micropore blockage. The frequency of the piezoelectric stack actuator is in the range of 20–200 kHz. The piezoelectric stack actuator is arranged in the inner cavity of the mounting seat or in contact with the atomization module on the inner wall of the face cover. The differential pressure sensor is arranged at the bottom of the liquid storage cavity of the bottom cover or the bottom of the hollow liquid guiding column. The control circuit board is provided with a cable for connecting to an external power supply. The differential pressure sensor and the piezoelectric stack actuator are respectively electrically connected to the control circuit board. When the differential pressure sensor detects that the differential pressure exceeds the set threshold, it sends a signal to the control circuit board, and the control circuit board controls the start and stop of the piezoelectric stack actuator. When the piezoelectric stack actuator starts, the high-frequency vibration generated by the piezoelectric stack actuator is transmitted to the atomization module.

[0023] The differential pressure sensor continuously monitors the differential pressure before and after the microporous layer. When the aperture is partially blocked, resulting in an increase in differential pressure, the piezoelectric actuator is automatically triggered to vibrate, effectively removing the deposition on the pore wall and preventing performance degradation or failure.

[0024] The periodic self-cleaning function of high-frequency micro-vibrations (20–200 kHz) can maintain the micropores clear without the need for users to manually disassemble and clean, significantly extending the cleaning and maintenance interval and reducing the maintenance cost.

[0025] After vibration cleaning to remove deposits, the original aperture is restored, keeping the output fog volume and the droplet size distribution in the optimal state, and avoiding uneven atomization or reduced output caused by blockage.

[0026] Vibration is only started when an abnormal pressure difference is detected, reducing energy consumption. The control circuit is automatically driven, easy to use, and the vibration frequency is in the ultrasonic range, without affecting the user experience.

[0027] The high-frequency and low-amplitude micro-vibration causes no damage to the structure, taking into account both cleaning and durability. With the intelligent vibration stop logic, it can minimize mechanical fatigue and extend the service life of components.

[0028] Furthermore, a pressure boosting chamber is provided between the liquid guiding outlet and the atomization module of the mounting seat. 4-8 arc-shaped blades are arranged on the inner wall of the pressure boosting chamber. The arc-shaped blades are inclined 30-60° from the inlet of the pressure boosting chamber to the outlet of the pressure boosting chamber. The inlet of the pressure boosting chamber is connected to the liquid guiding outlet, and the outlet of the pressure boosting chamber is a conical outlet with a diameter larger than the inner diameter of the pressure boosting chamber. The conical outlet is connected to the atomization module.

[0029] The arc-shaped blades are similar to a micro impeller. Through the centrifugal and guiding effects when the liquid flows through, the flow energy is converted into static pressure, significantly increasing the liquid supply pressure before the micro-hole atomization layer, promoting the liquid film to penetrate the micro-hole atomization layer more thoroughly, and achieving a higher atomization rate.

[0030] The blades are arranged in an annular and equally spaced manner and are inclined 30–60° along the flow direction, which can make the liquid generate a spiral upward flow in the annular space, eliminate the turbulent dead zone, and ensure the uniform distribution of the liquid film in the entire micro-hole active area. At the same time, the diameter of the conical outlet is larger than the inner diameter of the cavity, which can prevent fluid backflow and liquid accumulation.

[0031] The passive pressure boosting structure does not require additional pump speed increase or high-power drive. By regulating the flow field through a fine geometric shape, sufficient pressure can be obtained under low-flow conditions, reducing the load and energy consumption of the liquid extraction pump, and reducing the fluid impact noise due to the stable flow field.

[0032] The smoothly transitioning conical outlet in the pressure boosting chamber, combined with the inclined blades, can alleviate the local pressure gradient, avoid the formation of cavitation in the local low-pressure area, reduce the mechanical impact on the atomization module and the liquid guiding column, and extend the service life of the overall system.

[0033] After pressure boosting, the liquid droplets obtain a higher initial velocity, and the kinetic energy of the fog droplets is greater when released through the spray port. The range and diffusion area of the fog column increase, which is beneficial to quickly cover a larger space and achieve uniform environmental humidification.

[0034] Furthermore, a porous flow distribution plate for equally dividing the liquid flow from the liquid guiding outlet into several equal flow bundles is provided at the inlet of the pressure boosting chamber. The spacing between the arc-shaped blades gradually increases from the inlet to the outlet of the pressure boosting chamber along the radial direction.

[0035] The porous flow distribution plate splits the liquid flow into multiple equal flow bundles. Combined with the design of the arc-shaped blades with gradually increasing blade spacing from the inlet to the outlet, each bundle of liquid flow can obtain the same pressure boost path after entering the cavity, eliminating local impact loads and turbulent hot spots, thereby significantly improving the boosting efficiency and reducing energy loss. In this way, the subsequent atomization module receives a more stable and uniform inlet flow field, which can generate finer and more uniform droplet distributions, thereby improving the overall atomization quality and dose repeatability.

[0036] In addition, the uniform inflow and the blade arrangement with gradually increasing spacing reduce the pulsating load and vibration intensity on the blades, not only suppressing noise but also reducing mechanical losses caused by vibration fatigue. At the same time, the stable flow field structure effectively avoids the formation of dead zones and stagnant zones, reducing the risk of deposition and blockage of high-viscosity liquids or particles at the blade roots, and ensuring the stability and reliability of the device during long-term continuous operation.

[0037] Furthermore, it further includes a first decorative cover, a first bolt, and a second bolt. A decorative cavity is opened on the surface of the face cover, and a receiving cavity is opened at the bottom of the face cover. The bottom of the decorative cavity is provided with the spray port and the first bolt hole at intervals, and a positioning notch is opened on the side wall of the decorative cavity. The receiving cavity is provided with first bolt posts at intervals; connection lugs are arranged at intervals on the periphery of the mounting seat, and second bolt holes are opened on the connection lugs. Second bolt posts are opened at intervals on the bottom cover around the liquid storage cavity; the mounting seat is placed in the receiving cavity, and the first bolt passes through the second bolt hole and is locked to the first bolt post to realize the locking of the mounting seat and the face cover; the second bolt passes through the first bolt hole and locks the second bolt post to realize the locking of the face cover and the bottom cover; the first decorative cover is provided with a spray outlet at intervals, a positioning block is arranged on the side wall of the first decorative cover, a magnet is arranged at the bottom of the first decorative cover, and a first iron sheet is arranged on the bottom wall of the decorative cavity. The positioning block is inserted into the positioning notch, the first decorative cover is placed in the decorative cavity, and the magnet and the first iron sheet are attracted to each other to realize the attraction of the first decorative cover and the face cover. The first decorative cover blocks the first bolt hole, and the spray outlet is communicated with the spray port.

[0038] The first decorative cover blocks the bolt hole, keeping the appearance of the atomizing device integrated, simple and beautiful.

[0039] The magnetic attraction positioning cooperates with the positioning block to ensure that the first decorative cover is firmly in place without displacement, avoiding potential safety hazards caused by users accidentally touching the bolt hole.

[0040] The first bolt and the second bolt respectively realize the hierarchical locking of the mounting seat → face cover and the face cover → bottom cover. When disassembling and assembling, only the first decorative cover needs to be removed to access the atomization module, making maintenance more convenient.

[0041] The first decorative cover with automatic reset by magnetic suction fits tightly as soon as it is aligned with the positioning notch, simplifying the user operation.

[0042] The bolt lock is used to connect the connecting lug and the bolt column. Multiple-point fixation results in small displacement, ensuring that the components do not become loose in a vibrating or moving environment.

[0043] Double positioning by magnetic attraction and the positioning notch further stabilizes the first decorative cover, preventing the cover from shaking due to resonance during operation.

[0044] The first decorative cover covers the bolt hole and forms a closed cavity, effectively blocking dust and water mist from entering the threaded part, and extending the service life of the bolt and the internal cavity components.

[0045] Furthermore, it also includes a second decorative cover. The second decorative cover is provided with a humidity display module for displaying the humidity condition and a plurality of arc-shaped spray outlets. A second iron sheet is arranged at the bottom of the second decorative cover. The second decorative cover is placed in the decorative cavity and above the first decorative cover. The magnet and the second iron sheet are attracted to each other, realizing the attraction between the second decorative cover and the first decorative cover. The second decorative cover blocks the spray outlet, and the spray outlet is communicated with the arc-shaped spray outlet.

[0046] Integrating a humidity display module, users can directly understand the current environmental humidity without the need to rely on external instruments, facilitating timely adjustment of the atomization intensity or mode switching, and enhancing the use experience and comfort.

[0047] The second decorative cover covers the first decorative cover and the internal spray outlet, presenting a simple and unified appearance. The annular arc-shaped spray outlets surround the display screen, forming a visual effect of combining movement and stillness, while ensuring uniform diffusion of the mist flow.

[0048] The second iron sheet at the bottom is attracted to the magnet of the first decorative cover. There is no need to align bolts or buckles, and users can quickly disassemble, assemble or reset. When maintaining, the second decorative cover can be removed first, and then the first decorative cover, making the layered operation more convenient.

[0049] The arc-shaped spray outlets are arranged around the display area, enabling the mist flow to diffuse laterally, avoiding direct coverage on the surface of the display screen, and ensuring clear and reliable display of humidity data.

[0050] As an independent component, the second decorative cover can be conveniently replaced with other functional covers (such as a fragrance module cover, an air quality sensing cover), enhancing the scalability of the product and diverse application scenarios.

[0051] Further, the humidity display module includes a display screen, a humidity sensor, and a transparent protective cover. The display screen is disposed at the central position of the second decorative cover. The arc-shaped spray nozzle is located outside the display screen. The humidity sensor is disposed at the bottom of the second decorative cover, and the sensing end of the humidity sensor extends into the arc-shaped spray nozzle. The transparent protective cover is disposed on the second decorative cover to wrap the display screen. The humidity sensor and the display screen are respectively electrically connected to the control circuit board. The current ambient humidity value monitored by the humidity sensor is fed back to the control circuit board, and the display screen synchronously displays the current ambient humidity value.

[0052] The sensing end of the humidity sensor directly extends into the vicinity of the arc-shaped spray nozzle, enabling immediate acquisition of the true humidity after the spray is mixed with the environment, avoiding sensing delay or error.

[0053] The display screen is placed at a prominent central position and protected by a transparent protective cover, clearly presenting the humidity value. Users can master the ambient humidity change without additional instruments.

[0054] The transparent protective cover not only ensures the visibility of the display but also effectively prevents water vapor and droplets from directly contacting the screen and the sensor, extending the lifespan of electronic components.

[0055] The humidity data is real-time fed back to the control circuit board, which can automatically adjust the start and stop of the liquid pumping pump and the piezoelectric actuator, forming a closed-loop humidification control, avoiding over-humidification and saving energy.

[0056] The arc-shaped spray nozzle is arranged around the display screen, enabling the humidification effect and information display not to interfere with each other. While enjoying the comfortable foggy wind, users can monitor the humidity at any time, making the operation more convenient.

[0057] Further, it also includes a liquid pumping pump, a liquid filter, a liquid inlet pipe, a liquid discharge pipe, and a liquid storage tank. The liquid filter is placed inside the liquid storage tank. The inlet of the liquid inlet pipe is connected to the liquid filter, the outlet of the liquid inlet pipe is connected to the inlet of the liquid pumping pump, the outlet of the liquid pumping pump is connected to the liquid inlet, the inlet of the liquid discharge pipe is connected to the liquid discharge port, the outlet of the liquid discharge pipe is connected to the liquid storage tank, and the liquid pumping pump is electrically connected to the control circuit board. The control circuit board controls the start and stop of the liquid pumping pump.

[0058] The liquid pumping pump actively sucks water from the liquid storage tank and supplies liquid to the atomization module at a controllable flow rate and pressure (≥0.1 bar), eliminating unstable liquid supply caused by water level changes or capillary action, and ensuring that the atomization module always operates under the best working conditions.

[0059] The liquid filter built in the liquid storage tank can remove suspended particles and impurities, prevent blockage of the microporous layer and pipelines, and extend the service life of the atomization module and the pump.

[0060] The drain pipe returns the un-atomized or condensed water to the liquid storage tank, realizing the recycling of water resources. It can run continuously for a long time without external replenishment, saving water and reducing operating costs.

[0061] The liquid pump is linked with the control circuit board and can be started and stopped intelligently according to the system pressure or humidity requirements. Dry-running protection and overload protection functions improve system reliability and safety.

[0062] The second object of the present invention is achieved by:

[0063] A humidifying device comprises a support frame, a fan, an equipment box, a liquid pump, a liquid filter, a liquid inlet pipe, a liquid discharge pipe, a liquid storage tank and a power bank, wherein the support frame comprises a front frame body, a rear frame body and a rotating seat, the bottom of the front frame body and the bottom of the rear frame body are both provided with pulleys, the rotating seat comprises a front seat body and a rear seat body, the front seat body and the rear seat body are rotatably connected; the front frame body is connected to the front seat body, and the rear frame body is connected to the rear seat body, so that the front frame body and the rear frame body are rotatably connected to realize the expansion or folding of the support frame; the fan is provided with a connecting part, the fan is placed in the front frame body, the connecting part is connected to the corresponding front seat body in a rotatable manner, so that the fan is rotatably arranged in the front frame body;

[0064] The atomizing device is detachably arranged on the surface of the fan; the equipment box includes a box body and a box cover, the box body is arranged on the back of the fan, the liquid pump and the control circuit board are arranged in the box body, and the fan and the liquid pump are electrically connected to the control circuit board respectively; the box body is also provided with a battery compartment, the battery compartment is provided with a conductive terminal, one end of the conductive terminal extends out of the battery compartment to connect to the cable of the control circuit board, and the other end of the conductive terminal extends into the battery compartment to form a conductive plug, the power bank is detachably arranged in the battery compartment, the power supply socket of the power bank is plugged into the conductive plug, and the power bank is connected to the conductive plug through the power supply socket, The conductive plug and the conductive terminal supply power to the control circuit board, and the box cover is detachably arranged on the box body to cover the power bank; a controller is arranged on the top of the box body, and the controller is electrically connected to the control circuit board; the support frame is provided with a storage area below the fan, and the liquid storage tank is located in the storage area; the liquid filter is placed in the liquid storage tank, the inlet of the liquid inlet pipe is connected to the liquid filter, the outlet of the liquid inlet pipe is connected to the inlet of the liquid pump, the outlet of the liquid pump is connected to the liquid inlet of the atomizing device, the inlet of the liquid discharge pipe is connected to the liquid discharge port of the atomizing device, and the outlet of the liquid discharge pipe is connected to the liquid storage tank.

[0065] The fan and the atomizer are integrated on the same rack. The fan and the atomizer can be operated independently or in conjunction with the controller to meet the dual needs of cooling and humidification, saving space and cost.

[0066] The bottom pulleys of the support frame are combined with a foldable hinge structure, enabling the support frame to be easily moved and quickly stored. When the support frame is unfolded, it forms a stable storage area, and when the support frame is stored, the overall volume is significantly reduced, adapting to different scenarios.

[0067] The atomizing device is designed to be detachable. When maintaining or replacing it, there is no need to disassemble the whole machine, reducing the maintenance difficulty and downtime.

[0068] The power bank is quickly connected through a conductive plug, which can supply power to the humidifying device in outdoor scenarios and can also be taken out separately to charge other devices, enhancing the portability of the device and the flexibility of the power supply.

[0069] The built-in liquid pumping and liquid filtering ensure clean and stable liquid supply pressure. The closed-loop liquid inlet and outlet pipelines and the liquid storage tank reflux design achieve a continuous, efficient, and water-saving humidification cycle.

[0070] The controller centrally manages the fan, liquid pumping, and atomizing modules, and can automatically adjust the operating mode according to environmental requirements. The equipment box isolates the electrical and water circuits, enhancing safety and reliability.

[0071] The integrated appearance is simple and beautiful, and the pulleys and folding structure facilitate daily movement and storage. The modular components reduce the operation complexity and greatly improve the user experience of use and maintenance.

[0072] The second object of the present invention can also be solved by the following technical measures:

[0073] Further, the fan includes a housing, a motor, and a fan blade. The housing includes a front mesh cover and a rear mesh cover. The front mesh cover is provided with an installation opening, and a connecting portion is provided on the side wall of the front mesh cover. The front mesh cover and the rear mesh cover are connected to form the housing; the bottom cover of the atomizing device is arranged on the back of the front mesh cover, the installation opening communicates with the liquid storage cavity of the bottom cover, the face cover of the atomizing device is detachably arranged on the surface of the front mesh cover and connected to the bottom cover, and the hollow liquid guiding column passes through the installation opening and extends into the liquid storage cavity; the motor is arranged on the rear mesh cover, the rotating shaft of the motor extends into the inner cavity of the housing, the fan blade is placed in the housing and connected to the rotating shaft of the motor, and the box body is arranged on the rear mesh cover; a supporting plate is further included, and the supporting plate includes a front plate body and a rear plate body. The front plate body and the rear plate body are hinged, the front plate body or the rear plate body rotates around the hinge, the supporting plate is placed in the storage area, the front plate body is connected to the front frame body, and the rear plate body is connected to the rear frame body, realizing that the supporting plate unfolds or folds following the support frame.

[0074] The liquid storage tank is a flexible box body with a sewage outlet. The flexible box body is placed in the storage area and sits on the supporting plate. One side of the flexible box body is connected to the front frame body, and the other side of the flexible box body is connected to the rear frame body. The flexible box body unfolds or folds following the support frame.

[0075] The atomization device is directly installed on the front mesh cover. The airflow sent by the fan can carry out the mist particles together, making the mixture of mist and wind more uniform and expanding the humidification coverage area.

[0076] The supporting plate is hingedly connected to the front and rear frames. The flexible liquid storage tank is fixed on the supporting plate. When the support frame is folded, the supporting plate and the liquid storage tank are synchronously retracted, and the overall folding can be completed without manually disassembling the liquid storage tank, saving space and avoiding water overflow.

[0077] After the supporting plate is unfolded, it forms a rigid support, and the flexible box body is evenly stressed on the front and rear frames, avoiding tipping caused by the weight offset of the liquid storage tank and improving the use safety.

[0078] The connection between the hinge-type supporting plate and the flexible box body can be quickly disassembled, and the user can independently take out the liquid storage tank for cleaning and maintenance, reducing the maintenance difficulty.

[0079] After folding, it has a small volume and a movable pulley design, which is convenient for quick deployment and storage in environments such as homes, offices, and outdoors. When unfolded, the liquid storage tank provides a stable large-volume water source to meet the long-term humidification requirement.

[0080] The beneficial effects of the present invention are as follows:

[0081] The present invention introduces a hydrophilic transition cavity and a three-stage atomization structure. The hydrophilic coating on the inner wall of the transition cavity can effectively buffer the liquid flow pulsation and stabilize the flow field; the three-stage module of "coarsening → refining → micro-hole atomization" gradually refines the liquid film, greatly improving the concentration of the droplet particle size, significantly improving the atomization uniformity and continuity, and eliminating the phenomenon of large particles or spray interruption caused by amplitude fluctuation or channel accumulation, thereby solving the problems of unstable output and wide droplet particle size distribution of the existing atomization devices.

[0082] The inner wall of the hollow liquid guiding column of the present invention is fully sprayed with a nano-scale fluorosilicon / silica hydrophobic coating, which can greatly reduce the adhesion and deposition of liquid in the channel, extend the device life and reduce the disassembly and cleaning frequency, and solve the problems of easy adhesion, blockage of the liquid guiding channel and high maintenance cost.

[0083] The present invention adopts a modular detachable structure of a face cover - mounting seat - bottom cover, which is not only convenient for daily cleaning and maintenance, but also easy to be quickly integrated with various airflow media such as fans, air conditioners, air purifiers, and vehicle-mounted devices, adapts to different humidification scenarios, and improves the compatibility and user experience of the product.

[0084] In the present invention, through the synergistic effect of the hollow liquid guiding column, the pressurizing cavity and the atomization module, the liquid is stably distributed, pressurized and gradually refined, generating ultra-fine mist droplets with a diameter of 1 - 5 μm, realizing rapid and uniform indoor humidification.

[0085] In the present invention, the permeability of the atomization module is monitored in real time by a differential pressure sensor. Only when the detected differential pressure exceeds the set threshold, the piezoelectric stack actuator is controlled to start, generating high-frequency micro-vibrations in the range of 20–200 kHz to perform periodic self-cleaning on the micropores and transition cavities, preventing blockage and ensuring long-term stable atomization performance.

[0086] In the present invention, a liquid drainage and reflux and liquid filtration system is designed. The excess liquid that has not entered the atomization process in the liquid storage cavity can flow back to the liquid storage tank through the liquid drainage port, and after being purified by the liquid filter, it can be recycled again, effectively reducing water resource waste, achieving environmental protection, and meeting the usage requirements of sustainable development.

[0087] In the present invention, the face cover, mounting seat, bottom cover, and atomization module are all detachable structures. With the combination of magnetic attraction and bolt locking design, users can complete the cleaning or replacement of the atomization component and filter element within a few minutes, and the maintenance is simple.

[0088] In the present invention, a passive micropore shear atomization method is adopted. Through the high-speed shear action of the natural flow of the liquid and the micropore structure, ultra-fine atomization is achieved without heating the liquid, avoiding energy loss during the heating process, significantly improving the overall energy efficiency, reducing the usage cost, and at the same time ensuring the stability of the liquid components, which is suitable for application scenarios with high requirements for environmental humidity and liquid purity.

[0089] In the present invention, a pressure-boosting cavity with optimized structure is provided. The kinetic energy of the liquid flow is converted by the inclined arc-shaped blades to form a high-static-pressure liquid film, effectively increasing the liquid ejection pressure, reducing the dependence on the output pressure of the liquid pumping pump, not only reducing the pump power consumption but also significantly extending the service life of the liquid pumping pump, and the overall operation is more stable and reliable. Description of the Drawings

[0090] Figure 1 It is a schematic diagram of the atomization device.

[0091] Figure 2 It is a schematic diagram of the atomization device from another angle.

[0092] Figure 3 It is a cross-sectional view of the atomization device.

[0093] Figure 4 It is an assembly drawing of the face cover and bottom cover of the atomization device.

[0094] Figure 5 It is an assembly drawing of the face cover and bottom cover of the atomization device from another angle.

[0095] Figure 6 It is an exploded view of the atomization device.

[0096] Figure 7 It is an exploded view of the atomization device from another angle.

[0097] Figure 8 It is a combined diagram of an atomizing device, a liquid pumping device, a liquid filter, a liquid inlet pipe, a liquid outlet pipe and a liquid storage tank.

[0098] Figure 9 It is an assembly diagram of the atomizing device and the second decorative cover.

[0099] Figure 10 It is a sectional view of the atomizing module.

[0100] Figure 11 It is a schematic diagram of the humidifying device.

[0101] Figure 12 It is a schematic diagram of the humidifying device from another angle.

[0102] Figure 13 It is an assembly diagram of the second decorative cover, the face cover and the humidifying device.

[0103] Figure 14 It is an assembly diagram of the second decorative cover, the face cover, the front mesh cover and the humidifying device.

[0104] Figure 15 It is an assembly diagram of the box cover, the power bank, the box body and the humidifying device. Detailed implementation manners

[0105] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0106] Embodiment, as shown in Figures 1 to 10 An atomizing device 1 includes a face cover 2, a mounting base 3, a bottom cover 4 and an atomizing module 5. The mounting base 3 is provided with at least one hollow liquid guiding column 31. A liquid guiding outlet 311 communicating with the hollow liquid guiding column 31 is formed on the surface of the mounting base 3 corresponding to the top of the hollow liquid guiding column 31. A liquid guiding inlet 312 is formed at the bottom and side walls of the hollow liquid guiding column 31.

[0107] A spray port 21 is formed on the face cover 2 corresponding to the position of the liquid guiding outlet 311.

[0108] The mounting base 3 is detachably arranged in the inner cavity of the face cover 2. The atomizing module 5 is arranged on the mounting base 3 and located between the spray port 21 and the liquid guiding outlet 311.

[0109] The bottom cover 4 is provided with a liquid storage cavity 41. A liquid inlet 411 and a liquid outlet 412 communicating with the liquid storage cavity 41 are formed on the bottom cover 4. The face cover 2 and the bottom cover 4 are detachably connected. The hollow liquid guiding column 31 extends into the liquid storage cavity 41.

[0110] The inner walls of the hollow liquid guiding column 31 are all sprayed with a silica hydrophobic coating for reducing liquid adhesion and deposition.

[0111] The atomization module 5 includes a coarsening layer 51, a refining layer 52, and a micro-hole atomization layer 53. A transition cavity 54 for buffering flow pulsation and stabilizing the flow field is provided between the coarsening layer 51 and the refining layer 52, and a hydrophilic coating is provided on the inner surface of the transition cavity 54.

[0112] Further, the thickness of the atomization module 5 is 0.35 mm, and the height of the transition cavity 54 is 75 μm.

[0113] The coarsening layer 51 is a porous metal plate with a pore diameter of 30 μm and a pore density of 200 pores / cm².

[0114] The refining layer 52 is a nano-porous ceramic with a pore diameter of 3 μm and a pore density of 1500 pores / cm².

[0115] The micro-hole atomization layer 53 is a nickel-based alloy sheet with a pore diameter of 3 μm and a pore density of 5000 pores / cm², and the nickel-based alloy sheet is coated with a hydrophilic silica nano-coating with a thickness of 0.3 μm.

[0116] The coarsening layer 51 is fixed on the mounting base 3 and is located above the liquid guiding outlet 311. The micro-hole atomization layer 53 is located below the spray port 21. The refining layer 52 is located between the coarsening layer 51 and the micro-hole atomization layer 53. The micro-hole atomization layer 53 is fixed to the refining layer 52 by ultrasonic spot welding, and the refining layer 52 is fixed to the coarsening layer 51 by ultrasonic spot welding.

[0117] Further, it further includes a piezoelectric stack actuator 6, a differential pressure sensor 61, and a control circuit board 7 for periodically applying high-frequency micro-vibrations to the atomization module 5 to prevent micro-hole blockage. The frequency of the piezoelectric stack actuator 6 is in the range of 20–200 kHz. The piezoelectric stack actuator 6 is arranged in contact with the atomization module 5 on the inner wall of the face cover 2. The differential pressure sensor 61 is arranged in the liquid storage cavity 41 of the bottom cover 4.

[0118] The control circuit board 7 is provided with a cable for connecting to an external power supply. The differential pressure sensor 61 and the piezoelectric stack actuator 6 are respectively electrically connected to the control circuit board 7. When the differential pressure sensor 61 detects that the differential pressure exceeds a set threshold, it sends a signal to the control circuit board 7. The control circuit board 7 controls the start and stop of the piezoelectric stack actuator 6. When the piezoelectric stack actuator 6 is started, the high-frequency vibration generated by the piezoelectric stack actuator 6 is transmitted to the atomization module 5.

[0119] Further, a pressurizing chamber 8 is provided between the liquid guiding outlet 311 and the atomizing module 5 of the mounting base 3. Four arc-shaped blades 81 are arranged equidistantly on the inner wall of the pressurizing chamber 8. The arc-shaped blades 81 are inclined 30° from the inlet of the pressurizing chamber 8 towards the outlet of the pressurizing chamber 8. The inlet of the pressurizing chamber 8 is communicated with the liquid guiding outlet 311, and the outlet of the pressurizing chamber 8 is a tapered outlet 82 with a diameter larger than the inner diameter of the pressurizing chamber 8. The tapered outlet 82 is communicated with the atomizing module 5.

[0120] Further, it further includes a first decorative cover 9, a first bolt and a second bolt. A decorative cavity 22 is formed on the surface of the face cover 2, and a receiving cavity 23 is formed at the bottom of the face cover 2. The spray port 21 and the first bolt hole 221 are spaced apart at the bottom of the decorative cavity 22, and a positioning slot 222 is formed on the side wall of the decorative cavity 22. The receiving cavity 23 is provided with first bolt columns 231 at intervals.

[0121] Connecting lugs 32 are arranged at intervals around the mounting base 3. Second bolt holes 321 are formed in the connecting lugs 32. Second bolt columns 42 are spaced apart around the liquid storage cavity 41 of the bottom cover 4.

[0122] The mounting base 3 is placed in the receiving cavity 23. The first bolt passes through the second bolt hole 321 and is locked to the first bolt column 231 to realize the locking of the mounting base 3 and the face cover 2.

[0123] The second bolt passes through the first bolt hole 221 and is locked to the second bolt column 42 to realize the locking of the face cover 2 and the bottom cover 4.

[0124] A spray outlet 91 is spaced apart on the first decorative cover 9. A positioning block 94 is arranged on the side wall of the first decorative cover 9. A magnet is arranged at the bottom of the first decorative cover 9. A first iron sheet is arranged on the bottom wall of the decorative cavity 22. The positioning block 94 is inserted into the positioning slot 222. The first decorative cover 9 is placed in the decorative cavity 22. The magnet and the first iron sheet are attracted to each other to realize the attraction of the first decorative cover 9 and the face cover 2. The first decorative cover 9 shields the first bolt hole 221, and the spray outlet 91 is communicated with the spray port 21.

[0125] Further, it further includes a second decorative cover 10. The second decorative cover 10 is provided with a humidity display module for displaying the humidity condition and a plurality of arc-shaped spray ports 101. A second iron sheet is arranged at the bottom of the second decorative cover 10. The second decorative cover 10 is placed in the decorative cavity 22 and above the first decorative cover 9. The magnet and the second iron sheet are attracted to each other to realize the attraction of the second decorative cover 10 and the first decorative cover 9. The second decorative cover 10 shields the spray outlet 91, and the spray outlet 91 is communicated with the arc-shaped spray ports 101.

[0126] Further, the humidity display module includes a display screen 102, a humidity sensor, and a transparent protective cover. The display screen 102 is disposed at the center of the second decorative cover 10. The arc-shaped spray port 101 is located outside the display screen 102. The humidity sensor is disposed at the bottom of the second decorative cover 10, and the sensing end of the humidity sensor extends into the arc-shaped spray port 101. The transparent protective cover is disposed on the second decorative cover 10 to wrap the display screen 102.

[0127] The humidity sensor and the display screen 102 are respectively electrically connected to the control circuit board 7. The current ambient humidity value monitored by the humidity sensor is fed back to the control circuit board 7, and the display screen 102 synchronously displays the current ambient humidity value.

[0128] Further, it further includes a liquid pumping pump 20, a liquid filter 30, a liquid inlet pipe 40, a liquid discharge pipe 50, and a liquid storage tank 60. The liquid filter 30 is placed inside the liquid storage tank 60. The inlet of the liquid inlet pipe 40 is communicated with the liquid filter 30. The outlet of the liquid inlet pipe 40 is communicated with the inlet of the liquid pumping pump 20. The outlet of the liquid pumping pump 20 is communicated with the liquid inlet 411. The inlet of the liquid discharge pipe 50 is communicated with the liquid discharge port 412. The outlet of the liquid discharge pipe 50 is communicated with the liquid storage tank 60. The liquid pumping pump 20 is electrically connected to the control circuit board 7, and the control circuit board 7 controls the start and stop of the liquid pumping pump 20.

[0129] Combined Figures 11 to 15 As shown, a humidifying device includes a support frame 70, a fan 80, an equipment box 90, a liquid pumping pump 20, a liquid filter 30, a liquid inlet pipe 40, a liquid discharge pipe 50, a liquid storage tank 60, and a power bank 100. The support frame 70 includes a front frame body 701, a rear frame body 702, and a rotating seat 703. Pulley 704 is provided at the bottom of both the front frame body 701 and the rear frame body 702. The rotating seat 703 includes a front seat body 7031 and a rear seat body 7032, and the front seat body 7031 and the rear seat body 7032 are rotatably connected.

[0130] The front frame body 701 is connected to the front seat body 7031, and the rear frame body 702 is connected to the rear seat body 7032, so that the front frame body 701 and the rear frame body 702 are rotatably connected to realize the expansion or folding of the support frame 70.

[0131] The fan 80 is provided with a connecting portion 800. The fan 80 is placed inside the front frame body 701. The connecting portion 800 is rotatably connected to the corresponding front seat body 7031 to realize that the fan 80 is rotatably arranged inside the front frame body 701.

[0132] The atomizing device 1 is detachably arranged on the surface of the fan 80 to form a humidifying fan.

[0133] The device box 90 includes a box body 901 and a box cover 902. The box body 901 is arranged on the back of the fan 80. The liquid extraction pump 20 and the control circuit board 7 are arranged inside the box body 901. The fan 80 and the liquid extraction pump 20 are electrically connected to the control circuit board 7 respectively.

[0134] The box body 901 is also provided with a battery compartment 9011. The battery compartment 9011 is provided with conductive terminals. One end of the conductive terminals extends out of the battery compartment 9011 to connect the cable of the control circuit board 7. The other end of the conductive terminals extends into the battery compartment 9011 to form a conductive plug. The power bank 100 is detachably arranged in the battery compartment 9011. The power supply socket of the power bank 100 is plugged with the conductive plug. The power bank 100 supplies power to the control circuit board 7 through the power supply socket, the conductive plug and the conductive terminals. The box cover 902 is detachably arranged on the box body 901 to shield the power bank 100.

[0135] The top of the box body 901 is provided with a controller 903. The controller 903 is electrically connected to the control circuit board 7. The controller 903 is provided with a knob 9031.

[0136] The support frame 70 is provided with a storage area 705 below the fan 80. The liquid storage tank 60 is placed in the storage area 705.

[0137] The liquid filter 30 is placed in the liquid storage tank 60. The inlet of the liquid inlet pipe 40 is communicated with the liquid filter 30. The outlet of the liquid inlet pipe 40 is communicated with the inlet of the liquid extraction pump 20. The outlet of the liquid extraction pump 20 is communicated with the liquid inlet 411 of the atomizing device 1. The inlet of the liquid discharge pipe 50 is communicated with the liquid discharge port 412 of the atomizing device 1. The outlet of the liquid discharge pipe 50 is communicated with the liquid storage tank 60.

[0138] Further, the fan 80 includes a housing 801, a motor 802 and fan blades 803. The housing 801 includes a front mesh cover 8011 and a rear mesh cover 8012. The front mesh cover 8011 is provided with an installation opening 8013. The connecting portion 800 is arranged on the side wall of the front mesh cover 8011. The front mesh cover 8011 and the rear mesh cover 8012 are connected to form the housing 801.

[0139] The bottom cover 4 of the atomizing device 1 is arranged on the back of the front mesh cover 8011. The installation opening 8013 is communicated with the liquid storage cavity 41 of the bottom cover 4. The face cover 2 of the atomizing device 1 is detachably arranged on the surface of the front mesh cover 8011 and connected to the bottom cover 4. The hollow liquid guiding column 31 passes through the installation opening 8013 and extends into the liquid storage cavity 41.

[0140] The motor 802 is arranged on the rear net cover 8012. The rotating shaft of the motor 802 extends into the inner cavity of the cover body 801. The fan blade 803 is placed on the rotating shaft of the cover body 801 connecting the motor 802. The box body 901 is arranged on the rear net cover 8012.

[0141] It further includes a supporting plate 71. The supporting plate 71 includes a front plate body 711 and a rear plate body 712. The front plate body 711 and the rear plate body 712 are hinged. The front plate body 711 or the rear plate body 712 rotates with the hinge as the rotation center. The supporting plate 71 is placed in the storage area 705. The front plate body 711 is connected to the front frame body 701, and the rear plate body 712 is connected to the rear frame body 702, so that the supporting plate 71 can be unfolded or folded following the support frame 70.

[0142] The liquid storage tank 60 is a flexible box body with a sewage outlet. The flexible box body is placed in the storage area 705 and sits on the supporting plate 71. One side of the flexible box body is connected to the front frame body 701, and the other side of the flexible box body is connected to the rear frame body 702. The flexible box body unfolds or folds following the support frame 70.

[0143] In other embodiments, further, a porous flow distribution plate for equally dividing the liquid flow from the liquid guiding outlet 311 into several equal flow beams is arranged at the inlet of the pressurizing chamber 8. Along the radial direction from the inlet to the outlet of the pressurizing chamber 8, the spacing between the arc-shaped blades 81 gradually increases.

[0144] Usage method of the humidifying device

[0145] First, unfold the support frame 70 from the folded state outward until the front frame body 701 and the rear frame body 702 are automatically locked by the rotating seat 703. The supporting plate 71 is unfolded synchronously and horizontally in place. Place the liquid storage tank 60 stably on the supporting plate 71, ensure that both sides of the liquid storage tank 60 are connected to the front frame body 701 and the rear frame body 702, and check the status of each pulley 704. If there is a braking device, it can be locked to prevent the device from moving.

[0146] Next, the user injects water into the liquid storage tank 60 to the position of the water level marking line.

[0147] Next, the user opens the box cover 902, inserts the power bank 100 into the battery compartment 9011, and pushes until the power supply socket of the power bank 100 is tightly engaged with the conductive plug to ensure the power supply of the fan 80 and the atomizing device 1.

[0148] Next, the user rotates the knob 9031 to enter the air supply mode. The fan 80 immediately starts to operate, providing pure air. The user continues to rotate the knob 9031 to adjust the wind speed of the fan 80.

[0149] When the user presses and rotates downwards, it enters the humidification mode, and the liquid extraction pump 20 will start immediately, and convey the water in the liquid storage tank 60 to the atomization module 5 through the liquid inlet pipe 40.

[0150] When the user rotates and presses down the knob 9031, it enters the "humidifying and blowing" mode, and the fan 80 and the liquid extraction pump 20 work simultaneously. The ultrafine droplets generated by the atomization module 5 are carried out by the air flow, forming a comfortable foggy wind experience.

[0151] Then, the humidity sensor continuously monitors the ambient humidity and feeds the real-time data back to the control circuit board 7. The control circuit board 7 automatically starts and stops the liquid extraction pump 20 according to the humidity target set by the user, so that the ambient humidity is maintained within the set range without manual intervention.

[0152] Then, the user presses the knob 9031 in sequence to make the knob 9031 rise, exiting the humidification mode. Then the user rotates the knob 9031 to the initial position to exit the air supply mode. After all the operating components have completely stopped, the power supply is cut off.

[0153] Finally, the user opens the bottom drain port to drain the residual water in the liquid storage tank 60, and then folds the support frame 70 back to its original position. The supporting plate 71 is retracted synchronously with the liquid storage tank 60, and compact storage can be completed without disassembling the liquid storage tank 60.

[0154] Embodiment of maintaining the ambient humidity within the set range

[0155] When the user sets the target humidity to 50% RH through the controller 903, the humidity sensor collects the ambient humidity in real time and feeds the data back to the control circuit board 7. When it is detected that the humidity drops below 48% RH (target value - 2%), the control circuit board 7 automatically starts the liquid extraction pump 20, and humidification begins. With atomization and air supply, the ambient humidity rises. When the humidity reaches 52% RH (target value + 2%) or above, the control circuit board 7 automatically stops the liquid extraction pump 20, and humidification pauses. If the humidity drops below 48% RH again, the cycle repeats without manual intervention, so that the ambient humidity is always maintained within the set range of 48 - 52% RH.

[0156] Working principle of the atomization device 1

[0157] First, the liquid extraction pump 20, driven by the signal of the control circuit board 7, conveys water from the liquid storage tank 60 through the filter and the liquid inlet pipe 40 into the liquid storage cavity 41, and then enters the hollow liquid guide column 31 through the liquid guide inlets 312 at the bottom and the side wall of the hollow liquid guide column 31, and ascends to the liquid guide outlet 311. At the same time, the silica hydrophobic coating on the inner wall of the hollow liquid guide column 31 reduces liquid adhesion, ensuring that the liquid film is quickly and evenly conveyed to the liquid guide outlet 311.

[0158] Next, the liquid film flowing out from the liquid outlet 311 enters the pressurizing chamber 8. The inclined arc-shaped blades 81 evenly distributed in the pressurizing chamber 8 convert the dynamic pressure into static pressure by means of the kinetic energy of the liquid flow. At the same time, the conical outlet 82 prevents backflow, enabling the liquid film to obtain a higher static pressure and providing sufficient driving force for subsequent micro-atomization.

[0159] Next, the pressurized liquid film first passes through the roughening layer 51, where the liquid film is preliminarily dispersed into micro-fluid columns. After the micro-fluid columns buffer the flow rate pulsation through the transition cavity 54, they enter the refining layer 52 for further refinement. The refined micro-fluid columns are sheared into 1–5 μm ultrafine droplets by the micro-porous atomization layer 53 at high speed.

[0160] Next, the ultrafine droplets are released through the spray port 21. The ultrafine droplets naturally diffuse or diffuse with the help of the airflow of the fan 80, and are suspended in the air for a long time, achieving a large-range and uniform humidification effect.

[0161] Next, when the differential pressure sensor 61 detects that the differential pressure exceeds the set threshold, the control circuit board 7 automatically sends a start command to the piezoelectric stack actuator 6. The piezoelectric stack actuator 6 generates micro-vibrations at an ultrasonic frequency of 20–200 kHz and transmits them to the atomization module 5. After the vibration lasts for a certain period of time (such as several hundred milliseconds), the control circuit board 7 stops the operation of the piezoelectric stack actuator 6, realizing the removal of deposits and residual droplets in the pore wall and the transition cavity 54, keeping the pores unobstructed, ensuring continuous and stable atomization. At the same time, the differential pressure sensor 61 continues to monitor the differential pressure. If the differential pressure still exceeds the threshold, the control circuit board 7 triggers the piezoelectric stack actuator 6 to start again.

[0162] Finally, the water in the liquid storage cavity 41 that has not entered the hollow liquid guide column 31 flows back to the liquid storage tank 60 along the liquid discharge port 412, and after being filtered again, it re-enters the liquid storage cavity 41, forming a water-saving closed-loop circulation system.

[0163] Embodiment of the atomization module 5 for removing blockage

[0164] When the differential pressure sensor 61 detects that the differential pressure before and after the micro-porous layer rises to 200 Pa or above, the control circuit board 7 immediately sends a start command to the piezoelectric stack actuator 6. The actuator vibrates the micro-porous atomization module 5 at an ultrasonic frequency of about 100 kHz, and the vibration pulse lasts for about 0.2 seconds, which can effectively shake off the deposits on the pore wall. After the vibration ends, if the differential pressure has dropped to 100 Pa or below, the control board automatically stops the vibration. If the differential pressure is still higher than 100 Pa, the vibration is triggered again after an interval of 1 second until the differential pressure returns below 100 Pa.

[0165] The atomization device 1 of the present invention has the advantages of modularization, light weight and detachable, which is convenient for integration with a variety of common household or commercial devices to form different forms of humidification devices to meet diverse usage scenarios.

[0166] In the above embodiments, as Figures 11 to 15 shown, the atomizing device 1 is fixed at the air outlet of the fan 80. When the fan 80 rotates, the high-speed air flow evenly blows the atomized droplets indoors, so that air humidification can be achieved while maintaining coolness.

[0167] In other embodiments, the atomizing module is integrated into the air outlet channel of the air conditioner to form a humidifying air conditioner, and the cold / hot air of the air conditioner is used to drive the atomized moisture, so as to achieve energy-saving humidification in a large space.

[0168] The above examples are only some application modes of the combination of the atomizing device of the present invention and other devices. Those skilled in the art can, according to specific needs, combine the atomizing device of the present invention with various air flow, heating or refrigeration devices to design more forms of humidifying products, all of which do not depart from the protection scope of the present invention.

[0169] For example, in the present invention, terms such as first and second are used, which do not represent any order, quantity or importance, but are only used for distinction.

[0170] For example, in the present invention, terms such as a and an are used, which do not represent a limitation of quantity, but represent the existence of at least one mentioned object. For example, in the present invention, terms indicating orientation or position such as top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, above, below, etc. mean reflecting relative positions rather than absolute positions.

[0171] The above-described embodiments only represent several implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation of the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An atomizing device, comprising a face cover, a mounting base, a bottom cover and an atomizing module, characterized in that: The mounting base is provided with at least one hollow liquid guide column. A liquid guide outlet communicating with the hollow liquid guide column is formed on the surface of the mounting base corresponding to the top of the hollow liquid guide column. A liquid guide inlet is formed at the bottom and / or side wall of the hollow liquid guide column; A spray port is formed on the face cover corresponding to the position of the liquid guide outlet; The mounting base is detachably arranged in the inner cavity of the face cover. The atomization module is arranged on the mounting base and located between the spray port and the liquid guide outlet; The bottom cover is provided with a liquid storage cavity. A liquid inlet and a liquid outlet communicating with the liquid storage cavity are formed on the bottom cover. The face cover and the bottom cover are detachably connected. The hollow liquid guide column extends into the liquid storage cavity; The inner walls of the hollow liquid guide columns are all sprayed with a nano-level fluorosilicon or silica hydrophobic coating for reducing liquid adhesion and deposition; The atomization module includes a coarsening layer, a refining layer and a microporous atomization layer. A transition cavity for buffering flow pulsation and stabilizing the flow field is arranged between the coarsening layer and the refining layer. A hydrophilic coating is arranged on the inner surface of the transition cavity; It further includes a piezoelectric stack actuator, a differential pressure sensor and a control circuit board for periodically applying high-frequency micro-vibrations to the atomization module to prevent micropore blockage. The frequency of the piezoelectric stack actuator is in the range of 20–200 kHz. The piezoelectric stack actuator is arranged in the inner cavity of the mounting base or in contact with the atomization module on the inner wall of the face cover. The differential pressure sensor is arranged in the liquid storage cavity of the bottom cover or at the bottom of the hollow liquid guide column; The control circuit board is provided with a cable for connecting to an external power supply. The differential pressure sensor and the piezoelectric stack actuator are respectively electrically connected to the control circuit board. When the differential pressure sensor detects that the differential pressure exceeds a set threshold, a signal is sent to the control circuit board. The control circuit board controls the start and stop of the piezoelectric stack actuator. When the piezoelectric stack actuator starts, the high-frequency vibration generated by the piezoelectric stack actuator is transmitted to the atomization module; A pressurizing cavity is arranged on the mounting base and located between the liquid guide outlet and the atomization module. 4-8 arc-shaped blades are arranged on the inner wall of the pressurizing cavity. The arc-shaped blades are inclined 30-60° from the inlet of the pressurizing cavity to the outlet of the pressurizing cavity. The inlet of the pressurizing cavity communicates with the liquid guide outlet. The outlet of the pressurizing cavity is a conical outlet with a diameter larger than the inner diameter of the pressurizing cavity. The conical outlet communicates with the atomization module.

2. The atomizing device according to claim 1, wherein: The thickness of the atomization module is 0.2-0.5 mm, and the height of the transition cavity is 50–100 μm; The coarsening layer is a porous metal plate with a pore diameter of 20–50 μm and a pore density of 100–300 pores / cm² or a porous ceramic with a pore diameter of 20–50 μm and a pore density of 100–300 pores / cm²; The refining layer is a nano-porous ceramic with a pore diameter of 1–5 μm and a pore density ≥1000 pores / cm² or a laser-drilled metal thin sheet with a pore diameter of 1–5 μm and a pore density ≥1000 pores / cm²; The microporous atomization layer is a nickel-based alloy thin sheet with a pore diameter of 0.5–5 μm and a pore density of 1000-10000 pores / cm². The nickel-based alloy thin sheet is coated with a hydrophilic silica nano-coating with a thickness of 0.1-0.5 μm; The roughening layer is fixed on the mounting base and located above the liquid outlet, the microporous atomization layer is located below the spray port, the refining layer is located between the roughening layer and the microporous atomization layer, the microporous atomization layer is fixed to the refining layer by epoxy bonding glue or ultrasonic spot welding, and the refining layer is fixed to the roughening layer by epoxy bonding glue or ultrasonic spot welding.

3. The atomizing device according to claim 1, characterized in that: It further includes a first decorative cover, a first bolt and a second bolt. A decorative cavity is formed on the surface of the face cover, and a receiving cavity is formed at the bottom of the face cover. The spray port and the first bolt hole are spaced apart at the bottom of the decorative cavity, and a positioning notch is formed on the side wall of the decorative cavity. The receiving cavity is provided with a first bolt post at intervals; Connecting lugs are spaced around the mounting base, and second bolt holes are formed in the connecting lugs. Second bolt posts are spaced apart around the bottom cover at the liquid storage cavity; The mounting base is placed in the receiving cavity, and the first bolt passes through the second bolt hole and is locked to the first bolt post to realize the locking of the mounting base and the face cover; The second bolt passes through the first bolt hole and locks the second bolt post to realize the locking of the face cover and the bottom cover; The first decorative cover is provided with a spray outlet at intervals. A positioning block is arranged on the side wall of the first decorative cover, and a magnet is arranged at the bottom of the first decorative cover. A first iron sheet is arranged on the bottom wall of the decorative cavity. The positioning block is inserted into the positioning notch. The first decorative cover is placed in the decorative cavity, and the magnet and the first iron sheet are attracted to each other to realize the attraction of the first decorative cover and the face cover. The first decorative cover covers the first bolt hole, and the spray outlet is communicated with the spray port.

4. The atomizing device according to claim 3, characterized in that: It further includes a second decorative cover. The second decorative cover is provided with a humidity display module for displaying the humidity condition and a plurality of arc-shaped spray ports. A second iron sheet is arranged at the bottom of the second decorative cover. The second decorative cover is placed in the decorative cavity and located above the first decorative cover. The magnet and the second iron sheet are attracted to each other to realize the attraction of the second decorative cover and the first decorative cover. The second decorative cover covers the spray outlet, and the spray outlet is communicated with the arc-shaped spray port.

5. The atomization device according to claim 4, wherein: The humidity display module includes a display screen, a humidity sensor and a transparent protective cover. The display screen is arranged at the center of the second decorative cover. The arc-shaped spray port is located outside the display screen. The humidity sensor is arranged at the bottom of the second decorative cover, and the sensing end of the humidity sensor extends into the arc-shaped spray port. The transparent protective cover is arranged on the second decorative cover to wrap the display screen; The humidity sensor and the display screen are respectively electrically connected to the control circuit board. The current ambient humidity value monitored by the humidity sensor is fed back to the control circuit board, and the display screen synchronously displays the current ambient humidity value.

6. The atomization device according to any one of claims 1-5, characterized in that: It further includes a liquid extraction pump, a liquid filter, an inlet pipe, a drain pipe and a liquid storage tank. The liquid filter is placed in the liquid storage tank. The inlet of the inlet pipe is communicated with the liquid filter, the outlet of the inlet pipe is communicated with the inlet of the liquid extraction pump, the outlet of the liquid extraction pump is communicated with the liquid inlet, the inlet of the drain pipe is communicated with the drain port, the outlet of the drain pipe is communicated with the liquid storage tank. The liquid extraction pump is electrically connected to the control circuit board, and the control circuit board controls the start and stop of the liquid extraction pump.

7. A humidifying device comprising an atomizing device according to any one of claims 1-5, characterized in that: It includes a support frame, a fan, an equipment box, a liquid extraction pump, a liquid filter, a liquid inlet pipe, a liquid discharge pipe, a liquid storage tank and a power bank. The support frame includes a front frame body, a rear frame body and a rotating seat. Pulley wheels are provided at the bottoms of both the front frame body and the rear frame body. The rotating seat includes a front seat body and a rear seat body, and the front seat body and the rear seat body are rotatably connected; The front frame body is connected to the front seat body, and the rear frame body is connected to the rear seat body, so that the front frame body and the rear frame body are rotatably connected to realize the expansion or folding of the support frame; The fan is provided with a connecting part. The fan is placed inside the front frame body, and the connecting part is rotatably connected to the corresponding front seat body to realize that the fan is rotatably arranged inside the front frame body; The atomization device is detachably arranged on the surface of the fan; The equipment box includes a box body and a box cover. The box body is arranged on the back of the fan. The liquid extraction pump and the control circuit board are arranged inside the box body. The fan and the liquid extraction pump are respectively electrically connected to the control circuit board; The box body is also provided with a battery compartment. The battery compartment is provided with conductive terminals. One end of the conductive terminals extends out of the battery compartment to connect the cable of the control circuit board, and the other end of the conductive terminals extends into the battery compartment to form a conductive plug. The power bank is detachably arranged in the battery compartment. The power supply socket of the power bank is plugged into the conductive plug, and the power bank supplies power to the control circuit board through the power supply socket, the conductive plug and the conductive terminals. The box cover is detachably arranged on the box body to cover the power bank; A controller is arranged on the top of the box body, and the controller is electrically connected to the control circuit board; A storage area is arranged below the fan on the support frame, and the liquid storage tank is placed in the storage area; The liquid filter is placed inside the liquid storage tank. The inlet of the liquid inlet pipe is communicated with the liquid filter, the outlet of the liquid inlet pipe is communicated with the inlet of the liquid extraction pump, the outlet of the liquid extraction pump is communicated with the liquid inlet of the atomization device, the inlet of the liquid discharge pipe is communicated with the liquid discharge port of the atomization device, and the outlet of the liquid discharge pipe is communicated with the liquid storage tank.

8. The humidifying device according to claim 7, wherein: The fan includes a housing, a motor and fan blades. The housing includes a front mesh cover and a rear mesh cover. The front mesh cover is provided with an installation opening, and the connecting part is arranged on the side wall of the front mesh cover. The front mesh cover and the rear mesh cover are connected to form the housing; The bottom cover of the atomization device is arranged on the back of the front mesh cover. The installation opening is communicated with the liquid storage cavity of the bottom cover. The face cover of the atomization device is detachably arranged on the surface of the front mesh cover and connected to the bottom cover. The hollow liquid guiding column passes through the installation opening and extends into the liquid storage cavity; The motor is arranged on the rear mesh cover. The rotating shaft of the motor extends into the inner cavity of the housing. The fan blades are placed inside the housing and connected to the rotating shaft of the motor. The box body is arranged on the rear mesh cover; It also includes a supporting plate. The supporting plate includes a front plate body and a rear plate body. The front plate body and the rear plate body are hinged. The front plate body or the rear plate body rotates around the hinge point. The supporting plate is placed in the storage area. The front plate body is connected to the front frame body, and the rear plate body is connected to the rear frame body to realize that the supporting plate follows the expansion or folding of the support frame; The liquid storage tank is a flexible box body with a sewage discharge port. The flexible box body is placed in the storage area and sits on the supporting plate. One side of the flexible box body is connected to the front frame body, and the other side of the flexible box body is connected to the rear frame body. The flexible box body unfolds or folds along with the support frame.

Images