Static electricity elimination device of water negative oxygen ion instrument and water negative oxygen ion instrument

By installing an electrostatic elimination device in the water negative oxygen ion meter, and using conductive strips and a voltage reduction module to eliminate the negative charge in the atomization chamber, the problem of easy corrosion of the atomizing plate is solved, the service life of the device is extended, and the stability and reliability of the equipment are improved.

CN224305967UActive Publication Date: 2026-05-29FOSHAN MU RESPIRATORY HEALTH TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN MU RESPIRATORY HEALTH TECHNOLOGY CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing water negative oxygen ion generating equipment suffers from problems such as easy corrosion of atomizing plates and short service life. In particular, during high-voltage ionization, the accumulation of negative charges leads to voltage differences in the atomizing chamber, affecting the lifespan of the device.

Method used

An electrostatic eliminator is installed in the water negative oxygen ion meter. The negative charge in the atomization chamber is discharged through the conductive strip to form a circuit to prevent the negative charge from acting directly on the atomizing plate. Combined with the voltage reduction module and electrostatic eliminator, static electricity is eliminated and the service life of the atomizing plate is extended.

Benefits of technology

This effectively prevents corrosion of the atomizing plate, extends the service life of the water negative oxygen ion meter, and improves the stability and reliability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a static electricity eliminating device of a water negative oxygen ion instrument and the water negative oxygen ion instrument, which is arranged in the water negative oxygen ion instrument, and the water negative oxygen ion instrument comprises an atomized water tank, a negative charge output device and a control circuit board, the atomized water tank is internally provided with an atomizing cavity, the bottom of the atomizing cavity is provided with an atomizing sheet, the top of the atomized water tank is provided with an atomizing pipe communicated with the atomizing cavity, and the outlet of the atomizing pipe is close to the output port of the negative charge output device; the static electricity eliminating device comprises a conductive strip, the lower end of the conductive strip is inserted into the atomizing cavity, and the upper end of the conductive strip is electrically connected with the negative electrode of the atomizing sheet through a wire. The static electricity eliminating device of the water negative oxygen ion instrument and the water negative oxygen ion instrument can avoid the corrosion of the atomizing sheet and prolong the service life.
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Description

Technical Field

[0001] This utility model relates to the field of negative oxygen ion technology, and in particular to an electrostatic elimination device for a water negative oxygen ion meter and a water negative oxygen ion meter. Background Technology

[0002] Currently, there are two main types of water-based negative oxygen ion generators on the market: water-jet generation and mesh piezoelectric ceramic atomization. The former produces a lower number of negative oxygen ions, has a shorter migration distance, and is noisier, while the latter's mesh is prone to clogging, has a shorter service life, poor sealing, and is prone to leakage.

[0003] Prior patent CN118935597A discloses a device for generating negative oxygen ions from water. This device increases the generation of negative oxygen ions by combining static ionization of the water tank, ultrasonic atomization, and high-voltage ionization, and increases the migration distance of the negative oxygen ions by incorporating a fan. However, during operation, because the high-voltage ionization needle is located near the outlet of the mist outlet, a large number of negative charges enter the atomization chamber with the mist, creating a voltage difference inside. This causes the atomizing plates inside the atomization chamber to be prone to electro-corrosion, shortening the lifespan of the device. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides an electrostatic elimination device for a water negative oxygen ion meter and a water negative oxygen ion meter, which can avoid corrosion of the atomizing plate and extend its service life.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an electrostatic elimination device for a water negative oxygen ion meter, which is installed in the water negative oxygen ion meter.

[0006] The water negative oxygen ion generator includes an atomizing water tank, a negative charge output device, and a control circuit board. The atomizing water tank has an atomizing chamber with an atomizing plate at the bottom. The top of the atomizing water tank has a mist outlet pipe that communicates with the atomizing chamber, and the outlet of the mist outlet pipe is close to the output port of the negative charge output device. The static elimination device includes a conductive strip with its lower end inserted into the atomizing chamber and its upper end electrically connected to the negative electrode of the atomizing plate via a wire.

[0007] The aforementioned electrostatic eliminator inserts a conductive strip into the atomizing chamber, which can discharge the negative charge inside the atomizing chamber and connect it to the negative electrode of the atomizing plate through a wire to form a circuit. This prevents the negative charge from directly acting on the atomizing plate, thereby avoiding corrosion of the atomizing plate and extending its service life.

[0008] In a preferred embodiment, the static eliminator further includes a static eliminator electrically connected to the control circuit board for eliminating static electricity on the control circuit board.

[0009] In a preferred embodiment, the water negative oxygen ion meter also includes a voltage reduction module inside its casing. The input end of the voltage reduction module is connected to a power cord, and the output end is connected to a control circuit board. An electrostatic eliminator is electrically connected to the voltage reduction module to eliminate static electricity on the voltage reduction module.

[0010] In a preferred embodiment, the step-down module is a 220V to 12V step-down circuit board.

[0011] In a preferred embodiment, the lower end of the conductive strip is vertically inserted into the atomizing cavity and contacts the bottom surface of the atomizing cavity.

[0012] In a preferred embodiment, the conductive strip is a metal conductive rod.

[0013] A water negative oxygen ion meter includes an electrostatic elimination device as described in any of the above technical solutions.

[0014] In a preferred embodiment, the bottom of the atomizing chamber is further provided with a water level detection device, and the lower part of the atomizing chamber is provided with a water ionization structure.

[0015] The water ionization structure is a cover with an open bottom. The cover is located at the bottom of the atomizing chamber and covers both the atomizing plate and the water level detection device. The conductive strip is located between the outer wall of the cover and the inner wall of the atomizing chamber. The cover is made of plastic material mixed with rare earth ionization materials.

[0016] The top surface of the cover has a first through hole corresponding to the position of the atomizing plate, and the inside of the cover has an isolation cavity for separating the atomizing plate and the water level detection device. The top surface of the isolation cavity is a sealed surface.

[0017] In a preferred embodiment, the top surface of the cover is further provided with a plurality of second through holes, the second through holes being smaller than the first through holes.

[0018] In a preferred embodiment, the water negative oxygen ion meter also includes an anti-backflow structure;

[0019] The anti-backflow structure includes an air inlet located inside the atomizing chamber and an inverted cover placed on the air inlet. The air inlet is set to open upwards, and the height of the left and right side walls of the air inlet is lower than the height of the front and rear side walls.

[0020] The lower edge of the cover extends at least to the bottom of the left and right side walls of the air inlet, and there is a space between the inner walls of the left and right sides of the cover and the left and right side walls of the air inlet to allow the airflow to flow downwards.

[0021] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are:

[0022] This utility model provides an electrostatic elimination device for a water negative oxygen ion meter. By inserting a conductive strip into the atomizing chamber, the negative charge in the atomizing chamber can be discharged and connected to the negative electrode of the atomizing plate through a wire to form a circuit. This prevents the negative charge from directly acting on the atomizing plate, thereby avoiding corrosion of the atomizing plate and extending its service life.

[0023] A water negative oxygen ion meter employs the electrostatic elimination device described above, which can discharge the negative charge in the atomization chamber, prevent corrosion of the atomizing plate, and extend its service life.

[0024] In addition, other advantages of this invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of this invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the static electricity elimination device of this utility model;

[0027] Figure 2 This is a schematic diagram showing the position of the conductive strip of this utility model;

[0028] Figure 3 This is a schematic diagram showing another position of the conductive strip of this utility model;

[0029] Figure 4 This is another structural schematic diagram of the static electricity elimination device of this utility model;

[0030] Figure 5 This is a schematic diagram of the exploded structure of the water negative oxygen ion meter of this utility model;

[0031] Figure 6 This is a schematic diagram of the water ionization structure of this utility model;

[0032] Figure 7 This is a schematic diagram of the anti-backflow structure of this utility model;

[0033] Explanation of reference numerals in the attached diagram: 1. Atomizing water tank; 11. Atomizing pipe; 12. Water level detection device; 2. Water storage tank; 3. Negative charge output device; 4. Control circuit board; 5. Conductive strip; 6. Static eliminator; 7. Voltage reduction module; 8. Water ionization structure; 9. Anti-backflow structure; 91. Air inlet; 92. Cover. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] Reference Figure 1-7 This invention describes an electrostatic elimination device for a water-based negative oxygen ion generator according to an embodiment of the present invention. This water-based negative oxygen ion generator can be widely used in home environments or office spaces and has the effect of improving air quality.

[0037] In one embodiment, such as Figure 1-4 As shown, an electrostatic elimination device for a water negative oxygen ion meter is provided in the water negative oxygen ion meter. The water negative oxygen ion meter includes an atomizing water tank 1, a water storage tank 2, a negative charge output device 3, and a control circuit board 4. The atomizing water tank 1 is provided with an atomizing chamber, and an atomizing plate is provided at the bottom of the atomizing chamber. The top of the atomizing water tank 1 is provided with a mist outlet pipe 11 that communicates with the atomizing chamber. The outlet of the mist outlet pipe 11 is close to the output port of the negative charge output device 3. The electrostatic elimination device includes a conductive strip 5. The lower end of the conductive strip 5 is inserted into the atomizing chamber, and the upper end of the conductive strip 5 is electrically connected to the negative electrode of the atomizing plate through a wire.

[0038] The control circuit board 4 is connected to and controls the operation of the atomizing plate and the negative charge output device 3 respectively; the atomizing plate can be an ultrasonic ceramic transducer; the water storage tank 2 is connected to the atomizing water tank 1 to supply water to the atomizing chamber, and the water is formed into water mist by ultrasonic vibration of the atomizing plate; the lower side of the atomizing water tank 1 is provided with an air inlet chamber, the upper part of the air inlet chamber is provided with an air inlet 91, and the bottom of the air inlet chamber is provided with an air intake fan for blowing the water mist generated by ultrasonic atomization upward.

[0039] Specifically, the negative charge output device 3 includes a conical tube, a fan bracket, and a silent fan. The conical tube is located above the atomizing water tank 1. The silent fan is mounted on the fan bracket, and the front end of the fan bracket is provided with a needle bracket that can be inserted into the conical tube. A negative charge output needle is installed on the front end ring of the needle bracket. The fan bracket is fixedly connected to the rear end of the conical tube so that the air outlet of the silent fan is aligned with the opening at the rear end of the conical tube, and the negative charge output needle is located at the output port position at the front end of the conical tube.

[0040] The top of the atomizing water tank 1 is symmetrically provided with two mist outlets, each of which is detachably connected to a mist outlet pipe 11. The outlets of the two mist outlet pipes 11 are symmetrically located on both sides of the output port of the conical tube. The two mist outlet pipes 11 are connected as one unit by an arc-shaped mounting part. The arc-shaped mounting part is provided with at least one mounting hole on each side of each mist outlet pipe 11. The two mist outlets are provided with mounting seats that mate with the mounting holes on both sides. The two mist outlet pipes 11 are connected to the two mist outlets through the arc-shaped mounting part.

[0041] The aforementioned electrostatic elimination device can discharge the negative charge in the atomizing chamber by inserting the conductive strip 5 into the atomizing chamber. The negative charge is then connected to the negative electrode of the atomizing plate through a wire to form a circuit, so that the negative charge does not directly act on the atomizing plate, thereby avoiding corrosion of the atomizing plate and extending the service life of the water negative oxygen ion meter.

[0042] In this embodiment, the static electricity elimination device further includes a static electricity eliminator 6, which is electrically connected to the control circuit board 4 and is used to eliminate static electricity on the control circuit board 4.

[0043] Among them, the static eliminator 6 can be a common static eliminator on the market; in specific implementation, the static eliminator 6 is installed inside the casing of the water negative oxygen ion meter.

[0044] In this embodiment, the water negative oxygen ion meter is also equipped with a voltage reduction module 7 inside the casing. The input end of the voltage reduction module 7 is connected to the power cord and the output end is connected to the control circuit board 4. The static eliminator 6 is electrically connected to the voltage reduction module 7 and is used to eliminate static electricity on the voltage reduction module 7.

[0045] The power cord can be a 220V power cord; in specific implementation, the step-down module 7 can convert the high voltage provided by the power cord into a low voltage that the water negative oxygen ion meter can use, for example, converting the 220V power supply voltage into a 12V working voltage.

[0046] In this embodiment, the step-down module 7 is a 220V to 12V step-down circuit board. In practical implementation, since the water negative oxygen ion meter is equipped with the step-down module 7, it can be directly connected to a 220V power supply, thus having a wider range of applications.

[0047] In this embodiment, the lower end of the conductive strip 5 is vertically inserted into the atomizing chamber and contacts the bottom surface of the atomizing chamber. In specific implementation, the lower end of the conductive strip 5 can extend into the water at the bottom of the atomizing chamber, thereby dissipating the negative charge in the water and better preventing the atomizing plate from being corroded.

[0048] In this embodiment, the conductive strip 5 can be a metal conductive rod.

[0049] In another embodiment, such as Figure 2-7 As shown, this utility model provides a water negative oxygen ion meter, including the electrostatic elimination device of the water negative oxygen ion meter as described in any of the above embodiments.

[0050] In this embodiment, a water level detection device 12 is also provided at the bottom of the atomizing chamber, and a water ionization structure 8 is provided at the lower part of the atomizing chamber. The water ionization structure 8 is a cover with an open bottom. The cover is located at the lower part of the atomizing chamber and covers both the atomizing plate and the water level detection device 12 below. The conductive strip 5 is located between the outer wall of the cover and the inner wall of the atomizing chamber. The cover is made of plastic material mixed with mixed rare earth ionization material. A first through hole corresponding to the position of the atomizing plate is opened on the top surface of the cover to allow water mist to pass through. An isolation cavity for separating the atomizing plate and the water level detection device 12 is provided inside the cover. The top surface of the isolation cavity is a sealed surface.

[0051] The water level detection device 12 is used to detect the water level in the atomizing water tank 1. When the water level is lower than the alarm threshold, an alarm signal is sent.

[0052] The aforementioned water ionization structure 8 is placed in the atomization chamber, separating the atomizing plate from the water level detection device 12 through an isolation chamber. The top surface of the isolation chamber is a sealed surface, i.e., a solid sealed surface, making the isolation chamber a relatively sealed space that can accommodate the water level detection device 12. This prevents water splashed during atomization from falling onto the water level detection device 12, thus effectively preventing water droplets from splashing onto the water level detection device 12 and causing false water detection, thereby improving water detection sensitivity. At the same time, since the water ionization structure 8 itself is made of plastic material mixed with mixed rare earth ionization materials, it can ionize the water in the atomization chamber into small water molecule clusters, thereby enhancing the ionization effect in the atomization chamber and preparing for the fineness of atomization.

[0053] In this embodiment, the top surface of the cover is also provided with multiple second through holes, which are smaller than the first through holes. By providing multiple second through holes on the top surface of the cover of the water ionization structure 8, the above embodiment allows water droplets to fall onto the perforated plane, thereby reducing the noise of falling water. At the same time, the water mist makes more thorough contact with the cover when passing through the second through holes, which helps to improve the ionization efficiency.

[0054] In specific implementation, the isolation chamber is composed of a baffle installed inside the cover, a portion of the top surface of the cover surrounded by the baffle, and a portion of the side surface of the cover; the baffle is located between the atomizing plate and the water level detection device 12; furthermore, the baffle is an arc-shaped plate bent towards the atomizing plate, and the baffle and the cover are integrally formed.

[0055] An air inlet 91 is provided inside the atomizing chamber; the cover is a cylindrical structure and the side facing the air inlet 91 is flat; the side wall of the cover includes several arc-shaped support parts supported on the bottom surface of the atomizing chamber; the water storage tank 2 is connected to the water inlet of the atomizing water tank 1; the bottom of the side wall of the cover facing the water inlet is provided with an arc-shaped opening, and the bottom sides of the baffle are provided with opening slots.

[0056] In this embodiment, the water negative oxygen ion meter also includes an anti-backflow structure 9; the anti-backflow structure 9 includes an air inlet 91 disposed in the atomization chamber and a cover 92 invertedly disposed on the air inlet 91. The air inlet 91 is configured to open upwards, and the height of the left and right side walls of the air inlet 91 is lower than the height of the front and rear side walls; the lower edge of the cover 92 covers at least to the bottom of the left and right side walls of the air inlet 91, and there is a space between the inner walls of the left and right sides of the cover 92 and the left and right side walls of the air inlet 91 to allow the airflow to flow downwards.

[0057] The air inlet 91 is located at the upper part of the air inlet chamber, which is located on the lower side of the atomizing water tank 1, and an air inlet fan is provided at the bottom of the air inlet chamber.

[0058] The above embodiment improves the structure of the air inlet 91, making it open upwards. The left and right side walls of the air inlet 91 are lower than the front and rear side walls, and a cover 92 is provided on the air inlet 91. The air coming from the air inlet cavity is blocked by the cover 92 and can only flow downwards from the left and right sides, making it difficult to flow back. At the same time, the cover 92 surrounds the air inlet 91, which can prevent water mist from entering, thereby effectively avoiding water mist backflow and ensuring the safety of the internal circuit components of the water negative oxygen ion generator. Moreover, the air inlet 91 opens upwards, and the airflow blown in by the air inlet fan enters the atomization chamber from both sides downwards through the cover. This allows the water molecules to be atomized and sprayed evenly through the mist outlet pipes 11 on both sides of the top of the atomization chamber. This avoids the problem of uneven mist output from the two mist outlet pipes 11 caused by the vortex-like airflow formed by the unidirectional air inlet 91 in the atomization chamber, thereby ensuring the negative oxygen ion generation and dynamic appearance effect of the water negative oxygen ion generator.

[0059] Furthermore, the top inner wall of the cover 92 contacts the top surfaces of the front and rear side walls of the air inlet 91, and the front and rear inner side walls of the cover 92 are respectively fitted to the front and rear side walls of the air inlet 91 to enhance sealing. A recessed platform is provided on the outer side wall of the air inlet 91, and the lower edge of the cover 92 rests on the recessed platform to enhance sealing and prevent backflow of moisture. The upper corners of the cover 92 are both arc-shaped transition angles. The air inlet 91 and the atomizing water tank 1 are integrally formed structures.

[0060] Based on the above embodiments, the water ionization structure 8, the water storage tank 2, and the atomizing water tank 1 are all made of plastic material mixed with mixed rare earth ionization materials, and therefore all have ionization functions; the mixed rare earth ionization materials include mixed rare earth and tourmaline powder.

[0061] The plastic material may be composed of the following components by weight percentage: 75-85% polypropylene, 10-15% filler, 0.5-1.5% stabilizer, 2-4% white mineral oil, and 1-3% colorant; the mixed rare earth ionized material may be composed of the following components by weight percentage: 3-5% antistatic agent, 2-5% tourmaline powder, and 0.5-1.5% mixed rare earth.

[0062] In practical implementation, the water ionization structure 8, the water storage tank 2, and the atomizing water tank 1 can utilize the ionization function of the mixed rare earth ionization material to ionize water molecules. This allows water molecules to be ionized into small water molecule clusters, resulting in smaller and more uniform particle size after ultrasonic atomization. Furthermore, the mixed rare earth ionization material contains an antistatic agent, which further prevents the charge generated after the ultrasonic atomization water molecules are broken down from losing their negative charge due to the positive charge generated by the plastic parts, thus effectively preventing the loss of negative oxygen ions.

[0063] The electrostatic elimination device and other components and operation of the water negative oxygen ion meter according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0064] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0065] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0066] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. An electrostatic elimination device for a water negative oxygen ion generator, disposed within the water negative oxygen ion generator, the water negative oxygen ion generator comprising an atomizing water tank, a negative charge output device, and a control circuit board, wherein the atomizing water tank has an atomizing chamber, the bottom of the atomizing chamber has an atomizing plate, and the top of the atomizing water tank has a mist outlet pipe communicating with the atomizing chamber, the outlet of the mist outlet pipe being close to the output port of the negative charge output device, characterized in that: The static eliminator includes a conductive strip, the lower end of which is inserted into the atomizing cavity, and the upper end of which is electrically connected to the negative electrode of the atomizing plate via a wire.

2. The electrostatic elimination device of a water negative oxygen ion meter according to claim 1, characterized in that: The static electricity elimination device further includes a static electricity eliminator, which is electrically connected to the control circuit board and is used to eliminate static electricity on the control circuit board.

3. The electrostatic elimination device of a water negative oxygen ion meter according to claim 2, characterized in that: The water negative oxygen ion meter also has a voltage reduction module inside its casing. The input end of the voltage reduction module is connected to the power cord and the output end is connected to the control circuit board. The static eliminator is electrically connected to the voltage reduction module and is used to eliminate static electricity on the voltage reduction module.

4. The electrostatic elimination device of a water negative oxygen ion meter according to claim 3, characterized in that: The step-down module is a 220V to 12V step-down circuit board.

5. The electrostatic elimination device for a water negative oxygen ion generator according to any one of claims 1 to 4, characterized in that: The lower end of the conductive strip is vertically inserted into the atomizing cavity and contacts the bottom surface of the atomizing cavity.

6. The electrostatic elimination device of a water negative oxygen ion meter according to claim 5, characterized in that: The conductive strip is a metal conductive rod.

7. A water negative oxygen ion generator, characterized in that: Includes the electrostatic elimination device of the water negative oxygen ion meter as described in any one of claims 1 to 6.

8. A water negative oxygen ion generator according to claim 7, characterized in that: The bottom of the atomizing chamber is also equipped with a water level detection device, and the lower part of the atomizing chamber is equipped with a water ionization structure. The water ionization structure is a cover with an open bottom. The cover is located at the bottom of the atomizing chamber and covers both the atomizing plate and the water level detection device. The conductive strip is located between the outer wall of the cover and the inner wall of the atomizing chamber. The cover is made of plastic material mixed with mixed rare earth ionization materials. The top surface of the cover has a first through hole corresponding to the position of the atomizing plate, and the inside of the cover has an isolation cavity for separating the atomizing plate and the water level detection device, the top surface of the isolation cavity being a sealed surface.

9. A water negative oxygen ion generator according to claim 8, characterized in that: The top surface of the cover is also provided with a plurality of second through holes, the second through holes being smaller than the first through holes.

10. A water negative oxygen ion generator according to claim 7, characterized in that: The water negative oxygen ion meter also includes an anti-backflow structure; The anti-backflow structure includes an air inlet located inside the atomizing chamber and an upside-down cover placed on the air inlet. The air inlet is upward-opening, and the height of the left and right side walls of the air inlet is lower than the height of the front and rear side walls. The lower edge of the cover extends at least to the bottom of the left and right side walls of the air inlet, and there is a space between the inner walls of the left and right sides of the cover and the left and right side walls of the air inlet to allow airflow to flow downwards.