An ultrasonic humidifier

By designing the float assembly and mist outlet mechanism, the problems of float instability and high noise were solved, resulting in a more stable and quieter humidifier operation.

CN224551697UActive Publication Date: 2026-07-24선전 신커청 일렉트로닉스 컴퍼니 리미티드
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
선전 신커청 일렉트로닉스 컴퍼니 리미티드
Filing Date
2025-08-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The float structure of existing humidifiers is unstable, resulting in uneven lifting and lowering, easy friction with the pipe wall, and poor noise reduction effect.

Method used

A float assembly was designed, comprising a float body, a rising column, a balance plate, a limiting plate, a limiting block, and sound-absorbing cotton. Combined with a misting mechanism and an exhaust mechanism, it ensures that the float rises and falls smoothly on the water surface and absorbs noise through the sound-absorbing cotton.

Benefits of technology

It improves the stability of the float's rise and fall and the noise reduction effect, reduces the friction between the float and the pipe wall, and enhances the humidifier's operational stability and noise elimination capability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for atomization humidifier technical field, provide an ultrasonic humidifier, including base, water tank, top seat, bottom plate, water level detector, PCB board and adjusting knob, still include mist outlet mechanism, exhaust mechanism and float ball subassembly, float ball subassembly includes float ball main part, lift column, balance plate, limit board, limit block and sound absorbing cotton, float ball main part floats on water in mist outlet mechanism, and lift column and balance plate sink freely, so can move the gravity center of float ball main part, so that float ball main part can more flatly lift, avoid its and the pipe wall of mist outlet mechanism rub; When the liquid level fluctuates due to atomization, the balance plate can stabilize the center of gravity, reducing the float ball deflection and collision pipe wall, at the same time, the sound absorbing cotton in the float ball main part can effectively absorb the noise generated by collision, combined with the improvement of structural stability, double optimization of noise reduction effect, solve the traditional float ball lifting stability is poor, noise elimination is not good's pain point.
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Description

Technical Field

[0001] This utility model belongs to the technical field of atomizing humidifiers, and particularly relates to an ultrasonic humidifier. Background Technology

[0002] With economic development and improved living standards, people have increasingly higher demands for quality of life and health. Humidifiers have thus gradually entered many homes around the world, becoming an indispensable small household appliance in arid regions. Increasing research and development efforts in humidifiers will benefit the air humidifier industry, improve the quality of life for the nation, and enhance public health.

[0003] Existing humidifiers are equipped with a multi-functional float, which includes a float body and a purifying and sound-absorbing cotton. The top of the float body has a receiving groove, in which the purifying and sound-absorbing cotton is housed. However, the float body is a single cylindrical structure. When the water level rises and falls, the float cannot be guaranteed to rise and fall smoothly. Especially when the liquid level is unstable, the float is prone to tilting, and friction easily occurs between the float and the pipe wall, resulting in poor stability of the float's rise and fall and ineffective noise reduction.

[0004] Therefore, in view of the above situation, there is an urgent need to develop an ultrasonic humidifier to overcome the shortcomings in current practical applications. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model embodiment is to provide an ultrasonic humidifier to solve the problems in the background technology mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An ultrasonic humidifier includes a base, a water tank, and a top mount. The water tank is located between and connected to both the top mount and the base. A base plate is fixed to the bottom of the water tank, located inside the base. A water level detector, a PCB board, and an adjustment knob are mounted on the base plate. The PCB board is electrically connected to the water level detector and the adjustment knob. One end of the adjustment knob extends to the outside of the base. The humidifier also includes:

[0008] A mist outlet mechanism, one end of which is mounted on the base plate, and the other end of which is located below the top seat and cooperates with the mist outlet on the top seat;

[0009] An exhaust mechanism, one end of which is fixed to the inner wall of the water tank, and the other end of which is connected to the mist outlet end of the mist outlet mechanism;

[0010] A float assembly is movably installed within a misting mechanism. The float assembly includes a float body, a lifting column, a balance plate, a limiting plate, a limiting block, and sound-absorbing cotton. The float body is movably disposed within the misting mechanism. A limiting block and a sound-absorbing surface are respectively installed inside the float body. The sound-absorbing cotton is located outside the lower limiting block. A limiting plate is vertically slidably installed inside the limiting block. A lifting column is fixed to the bottom of the limiting plate. One end of the lifting column extends to the outside of the float body and is fixedly connected to the balance plate.

[0011] As a further technical solution of this utility model, the bottom of the limiting block is provided with a barb, which is used to control the movement stroke of the limiting plate.

[0012] As a further technical solution of this utility model, the misting mechanism includes an ultrasonic generator, an atomizing tube, and a misting grid. The ultrasonic generator is fixed on the base plate and electrically connected to the PCB board. The atomizing tube is vertically installed on the base plate, with its bottom facing the ultrasonic generator. The bottom of the atomizing tube has an inlet connected to a water tank. The top of the atomizing tube is located below the top base, and a misting chamber is formed at the top of the atomizing tube. A misting grid is installed inside the misting chamber, and the misting chamber is connected to one end of the exhaust mechanism. The misting grid is located directly below the misting outlet.

[0013] As a further technical solution of this utility model, the exhaust mechanism includes a fan, an air duct, an outer cover, and an exhaust port. The fan is fixed on the base and electrically connected to the PCB board. The air duct is vertically fixed on the inner wall of the water tank. The bottom of the air duct is matched with the output end of the fan. An exhaust port is opened at the top of the air duct. The outer cover is fixed on one side of the atomizing tube and communicates with the mist outlet chamber. The outer cover is set on the outside of the air duct.

[0014] As a further technical solution of this utility model, there is a gap between the inner wall of the outer cover and the outer wall of the air passage, and the discharge port on the air passage is close to the top seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The misting mechanism atomizes the water in the water tank, and the exhaust mechanism draws outside air into the water tank. The drawn air carries the water mist out of the mist outlet on the top, thus achieving the function of humidifying the air.

[0017] Initially, the float floats on the water within the misting mechanism, while the lifting column and balance plate sink freely. This lowers the center of gravity of the float, allowing it to rise and fall more smoothly on the water and preventing friction with the pipe wall of the misting mechanism. When the liquid surface fluctuates due to atomization, the balance plate stabilizes the center of gravity, reducing float tilting and collisions with the pipe wall. Simultaneously, the sound-absorbing cotton inside the float effectively absorbs noise generated by collisions. Combined with improved structural stability, this dual optimization of noise reduction solves the problems of poor stability and inadequate noise elimination in traditional floats.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an ultrasonic humidifier provided in an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of an ultrasonic humidifier provided in an embodiment of the present invention.

[0021] Figure 3 An exploded view of the ultrasonic humidifier provided in the embodiment of this utility model.

[0022] Figure 4 An exploded view of the ultrasonic humidifier provided in an embodiment of this utility model.

[0023] Figure 5 for Figure 4 Exploded view of the structure of the middle float assembly.

[0024] Figure 6 for Figure 5 A schematic diagram of the structure of the middle float assembly in its extended and retracted states.

[0025] Figure 7 The diagram shows the air and mist flow direction in the ultrasonic humidifier provided in this embodiment of the utility model.

[0026] Attached reference numerals: 1-Base, 2-Water tank, 3-Top seat, 4-Mist outlet, 5-Adjustment knob, 6-Base plate, 7-Mist outlet mechanism, 71-Ultrasonic generator, 72-Atomizing tube, 73-Mist outlet grid, 74-Mist outlet chamber, 8-Exhaust mechanism, 81-Fan, 82-Air duct, 83-Outer cover, 84-Discharge port, 9-Float assembly, 91-Float body, 92-Lifting column, 93-Balance plate, 94-Limit plate, 95-Limit block, 96-Sound-absorbing cotton, 10-Water level detector, 11-PCB. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] like Figures 1 to 7 As shown, an ultrasonic humidifier provided as an embodiment of this utility model includes a base 1, a water tank 2, and a top seat 3. The water tank 2 is located between the top seat 3 and the base 1 and is connected to both the top seat 3 and the base 1. A base plate 6 is fixed to the bottom of the water tank 2. The base plate 6 is located inside the base 1, and a water level detector 10, a PCB board 11, and an adjustment knob 5 are respectively installed on the base plate 6. The PCB board 11 is electrically connected to the water level detector 10 and the adjustment knob 5. One end of the adjustment knob 5 extends to the outside of the base 1. The humidifier also includes:

[0030] A mist outlet mechanism 7, one end of which is mounted on the base plate 6, and the other end of which is located below the top seat 3 and cooperates with the mist outlet 4 opened on the top seat 3;

[0031] The exhaust mechanism 8 has one end fixed to the inner wall of the water tank 2, and the other end of the exhaust mechanism 8 is connected to the mist outlet end of the mist outlet mechanism 7.

[0032] A float assembly 9 is movably installed within a misting mechanism 7. The float assembly 9 includes a float body 91, a lifting column 92, a balance plate 93, a limiting plate 94, a limiting block 95, and sound-absorbing cotton 96. The float body 91 is movably installed within the misting mechanism 7. The limiting block 95 and a sound-absorbing surface are installed inside the float body 91. The sound-absorbing cotton 96 is located outside the lower limiting block 95. The limiting plate 94 is vertically slidably installed inside the limiting block 95. The lifting column 92 is fixed to the bottom of the limiting plate 94. One end of the lifting column 92 extends to the outside of the float body 91 and is fixedly connected to the balance plate 93.

[0033] The misting mechanism 7 atomizes the water in the water tank 2, and the exhaust mechanism 8 draws outside air into the water tank 2. The drawn air drives the water mist to be sprayed out from the mist outlet 4 on the top seat 3, thereby achieving the function of humidifying the air.

[0034] Initially, the float body 91 floats on the water inside the misting mechanism 7, while the lifting column 92 and the balance plate 93 sink freely. This lowers the center of gravity of the float body 91, allowing it to rise and fall more smoothly on the water and preventing friction with the pipe wall of the misting mechanism 7. When the liquid surface fluctuates due to atomization, the balance plate 93 stabilizes the center of gravity, reducing float tilting and collisions with the pipe wall. Meanwhile, the sound-absorbing cotton 96 inside the float body 91 effectively absorbs noise generated by collisions. Combined with the improved structural stability, this double optimization of noise reduction solves the problems of poor stability and inadequate noise elimination in traditional floats.

[0035] like Figure 5 and Figure 6 As shown, in a preferred embodiment of the present invention, the bottom of the limiting block 95 is provided with a barb. The barb can control the movement stroke of the limiting plate 94 to prevent the limiting plate 94 from separating from the limiting block 95. This ensures the structural integrity of the float assembly, the stability during long-term use, and extends the service life of the component.

[0036] like Figures 2 to 7 As shown, in a preferred embodiment of this utility model, the misting mechanism 7 includes an ultrasonic generator 71, an atomizing tube 72, and a misting grid 73. The ultrasonic generator 71 is fixed on the base plate 6 and electrically connected to the PCB board 11. The atomizing tube 72 is vertically installed on the base plate 6, with its bottom facing the ultrasonic generator 71. The bottom of the atomizing tube 72 has a water inlet connected to the water tank 2. The top of the atomizing tube 72 is located below the top seat 3. A misting chamber 74 is formed at the top of the atomizing tube 72. The misting grid 73 is installed inside the misting chamber 74, and the misting chamber 74 is connected to one end of the exhaust mechanism 8. The misting grid 73 is located directly below the mist outlet 4.

[0037] The vertical alignment of the ultrasonic generator 71 and the atomizing tube 72 ensures that the ultrasonic energy can be efficiently applied to the water entering the atomizing tube 72 through the water inlet, thus improving the atomization efficiency. The top mist outlet grid 73 not only distributes the water mist evenly but also prevents large water droplets from being sprayed out directly, making the humidification more uniform and delicate. The connection between the mist outlet chamber 74 and the exhaust mechanism 8 can fully mix the airflow with the water mist, enhance the diffusion ability of the water mist, and improve the humidification range and effect.

[0038] like Figures 2 to 7As shown, in a preferred embodiment of the present invention, the exhaust mechanism 8 includes a fan 81, an air duct 82, an outer cover 83, and an exhaust port 84. The fan 81 is fixed on the base 1 and electrically connected to the PCB board 11. The air duct 82 is vertically fixed on the inner wall of the water tank 2. The bottom of the air duct 82 is matched with the output end of the fan 81. The top of the air duct 82 is provided with an exhaust port 84. The outer cover 83 is fixed on one side of the atomizing tube 72 and communicates with the mist outlet 74. The outer cover 83 is disposed on the outside of the air duct 82.

[0039] like Figures 2 to 7 As shown, in a preferred embodiment of this utility model, there is a certain gap between the inner wall of the outer cover 83 and the outer wall of the air passage 82, and the discharge port 84 on the air passage 82 is close to the top seat 3. This can minimize the possibility of water in the water tank 2 entering the air passage 82 through the discharge port 84, structurally blocking the path of water flow to the fan 81, effectively avoiding the risk of the fan 81 being damaged due to water ingress, and significantly improving the waterproof performance and safety of the humidifier.

[0040] The fan 81 draws in outside air through the air duct 82 and directs it out of the mist chamber 74. The outside air mixes with the atomized water vapor and is then discharged from the mist outlet 4. This ensures efficient airflow and achieves a balance between function and safety through the reasonable layout of the air duct 82.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic humidifier, comprising a base, a water tank, and a top seat, wherein the water tank is located between the top seat and the base and is connected to both the top seat and the base, a base plate is fixed to the bottom of the water tank, the base plate is located inside the base, and a water level detector, a PCB board, and an adjustment knob are respectively mounted on the base plate, the PCB board is electrically connected to the water level detector and the adjustment knob, and one end of the adjustment knob extends to the outside of the base, characterized in that... Also includes: A mist outlet mechanism, one end of which is mounted on the base plate, and the other end of which is located below the top seat and cooperates with the mist outlet on the top seat; An exhaust mechanism, one end of which is fixed to the inner wall of the water tank, and the other end of which is connected to the mist outlet end of the mist outlet mechanism; A float assembly is movably installed within a misting mechanism. The float assembly includes a float body, a lifting column, a balance plate, a limiting plate, a limiting block, and sound-absorbing cotton. The float body is movably disposed within the misting mechanism. A limiting block and a sound-absorbing surface are respectively installed inside the float body. The sound-absorbing cotton is located outside the lower limiting block. A limiting plate is vertically slidably installed inside the limiting block. A lifting column is fixed to the bottom of the limiting plate. One end of the lifting column extends to the outside of the float body and is fixedly connected to the balance plate.

2. The ultrasonic humidifier according to claim 1, characterized in that, The bottom of the limiting block is provided with a barb, which is used to control the movement stroke of the limiting plate.

3. The ultrasonic humidifier according to claim 1, characterized in that, The misting mechanism includes an ultrasonic generator, an atomizing tube, and a misting grid. The ultrasonic generator is fixed to the base plate and electrically connected to the PCB board. The atomizing tube is vertically mounted on the base plate, with its bottom facing the ultrasonic generator. The bottom of the atomizing tube has a water inlet connected to a water tank. The top of the atomizing tube is located below the top base, and a misting chamber is formed at the top of the atomizing tube. A misting grid is installed inside the misting chamber, and the misting chamber is connected to one end of the exhaust mechanism. The misting grid is located directly below the misting outlet.

4. The ultrasonic humidifier according to claim 3, characterized in that, The exhaust mechanism includes a fan, an air duct, an outer cover, and an exhaust port. The fan is fixed on the base and electrically connected to the PCB board. The air duct is vertically fixed on the inner wall of the water tank. The bottom of the air duct is matched with the output end of the fan. An exhaust port is opened at the top of the air duct. The outer cover is fixed on one side of the atomizing tube and communicates with the mist outlet chamber. The outer cover is located on the outside of the air duct.

5. The ultrasonic humidifier according to claim 4, characterized in that, There is a gap between the inner wall of the outer cover and the outer wall of the air passage, and the discharge port on the air passage is close to the top seat.