Anti-reflux structure and water negative oxygen ion generating device
By improving the air inlet structure and using plastic materials containing mixed rare earth ionization materials, the problem of water mist backflow was solved, the safety and negative oxygen ion generation of the water negative oxygen ion generator were improved, a longer migration distance was achieved, noise was reduced, and the service life of the equipment was extended.
Patent Information
- Application Number
- CN202520175723.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-27
AI Technical Summary
Existing water-based negative oxygen ion generators have the risk of water mist easily flowing back, causing damage to circuit components. They also have insufficient negative oxygen ion generation and migration distance, high noise levels, poor sealing, and easy clogging of the mesh.
It adopts an anti-backflow structure, with the air inlet opening upward and equipped with a cover. The left and right side walls of the air inlet are lower than the front and rear side walls. The cover surrounds the air inlet to prevent water mist from flowing back. The cover guides the airflow downward from the left and right sides into the atomization chamber. Combined with the plastic material with mixed rare earth ionization materials and the negative charge output device, it improves ionization efficiency and negative oxygen ion generation.
It effectively prevents water mist backflow, ensures the safety of circuit components, increases the generation and migration distance of negative oxygen ions, reduces noise, extends equipment life, and improves air quality.
Smart Images
Figure CN223840583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of negative oxygen ion technology, and in particular to an anti-backflow structure and a water negative oxygen ion generator. Background Technology
[0002] Negative oxygen ions have an air-purifying effect and can effectively optimize air quality. However, the water-based negative oxygen ion generators currently on the market are mainly of two types: Bernoulli water impact 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 lifespan, and poor sealing, making it prone to leakage.
[0003] Prior patent CN118935597A discloses a device for generating negative oxygen ions using water. This prior art can increase the generation of negative oxygen ions by combining static ionization of the water tank, ultrasonic atomizing plate, and high-voltage ionization, and increases the migration distance of negative oxygen ions by setting up a fan. However, because the air inlet is located inside the atomizing water tank and faces the inner wall of the atomizing water tank, water mist is prone to condensation at the air inlet during actual operation. When the device works for a long time, water may flow back down from the air inlet, which may cause damage to the internal circuit components of the device. Utility Model Content
[0004] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides an anti-backflow structure and a water negative oxygen ion generator, which can effectively prevent water mist backflow and improve safety.
[0005] The technical solution adopted by this utility model to solve its technical problem is: an anti-backflow structure, installed in a water negative oxygen ion generator, the water negative oxygen ion generator including a water storage tank, an atomizing water tank and a negative charge output device, the atomizing water tank having an atomizing chamber. The anti-backflow structure includes an air inlet located in the atomizing chamber and an inverted cover installed on the air inlet, the air inlet being upward-opening, and the height of the left and right side walls of the air inlet being lower than the height of the front and rear side walls; the lower edge of the cover at least covers the lower part of the left and right side walls of the air inlet, and a space is left 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 downward.
[0006] In a preferred embodiment, the top inner wall of the cover contacts the top surfaces of the front and rear side walls of the air inlet, and the front and rear inner side walls of the cover are respectively fitted to the front and rear side walls of the air inlet.
[0007] In a preferred embodiment, a recessed platform is provided on the outer wall of the air inlet, and the lower edge of the cover rests on the recessed platform.
[0008] In a preferred embodiment, the upper corners of both sides of the cover are arc-shaped transition angles.
[0009] In a preferred technical solution, the air inlet and the atomizing water tank are integrally molded structures.
[0010] In a preferred embodiment, both the water storage tank and the atomizing tank are made of plastic material mixed with a rare earth ionization material, which includes mixed rare earth elements and tourmaline powder.
[0011] A water negative oxygen ion generating device includes an anti-backflow structure as described in any of the above technical solutions.
[0012] In a preferred embodiment, the negative charge output device includes a conical tube, a fan bracket, and a silent fan. The silent fan is mounted on the fan bracket, and the front end of the fan bracket is provided with a needle holder that can be inserted into the conical tube. A negative charge output needle is installed on the front end ring of the needle holder. 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 outlet position at the front end of the conical tube.
[0013] In a preferred embodiment, the top of the atomizing water tank is provided with a forward-sloping mist outlet, which is detachably connected to a mist outlet pipe; the outlet of the mist outlet pipe is close to the outlet of the conical tube.
[0014] In a preferred embodiment, the top of the atomizing water tank is symmetrically provided with two mist outlets, each mist outlet being detachably connected to a mist outlet pipe. The outlets of the two mist outlet pipes are symmetrically located on both sides of the outlet of the conical pipe. The two mist outlet pipes 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. The two mist outlets are provided with mounting seats that mate with the mounting holes on both sides. The two mist outlet pipes are connected to the two mist outlets through the arc-shaped mounting part.
[0015] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are:
[0016] This utility model provides an anti-backflow structure that improves the air inlet structure. The air inlet adopts an upward opening structure, and the left and right side walls of the air inlet are lower than the front and rear side walls. A cover is provided on the air inlet, which blocks the air coming from the air chamber and allows it to flow downwards from the left and right sides, making it less likely to flow back. At the same time, the cover surrounds the air inlet, preventing water mist from entering, thus effectively avoiding water mist backflow and ensuring the safety of the internal circuit components of the water negative oxygen ion generator. Moreover, the upward opening of the air inlet, guided by the cover, allows the airflow blown in by the air intake fan to enter the atomization chamber from both sides downwards. This allows the water molecules to be atomized and evenly sprayed out through the mist outlet pipes on both sides of the top of the atomization chamber, avoiding the problem of uneven mist output caused by the vortex-like airflow formed by the unidirectional air inlet in the atomization chamber. This ensures the negative oxygen ion generation and dynamic appearance effect of the water negative oxygen ion generator.
[0017] A water negative oxygen ion generator adopts the above-mentioned anti-backflow structure, which can prevent water mist backflow and ensure the safety of internal circuit components.
[0018] In addition, other advantages of this invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description
[0019] 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.
[0020] Figure 1 This is a schematic diagram of the anti-backflow structure of this utility model;
[0021] Figure 2 This is a perspective view of the water negative oxygen ion generating device of this utility model;
[0022] Figure 3 This is a top view of the water negative oxygen ion generator of this utility model;
[0023] Figure 4 for Figure 4 A schematic diagram of the cross-sectional structure at position AA in the middle;
[0024] Figure 5 This is a schematic diagram of the exploded structure of the water negative oxygen ion generator of this utility model;
[0025] Figure 6 This is an exploded structural diagram of the negative charge output device of this utility model;
[0026] Figure 7 This is an exploded structural diagram of the upper part of the atomizing water tank of this utility model;
[0027] Explanation of reference numerals in the attached drawings: 1. Anti-backflow structure; 11. Air inlet; 110. Recessed platform; 12. Cover; 13. Air intake fan; 2. Water negative oxygen ion generator; 21. Water storage tank; 22. Atomizing water tank; 221. Mist outlet; 222. Mist outlet pipe; 223. Arc-shaped mounting part; 23. Negative charge output device; 231. Conical tube; 232. Fan bracket; 233. Silent fan. Detailed Implementation
[0028] 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.
[0029] 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.
[0030] Reference Figure 1-7 This invention describes an anti-backflow structure 1 and a water negative oxygen ion generator 2 according to an embodiment of the present invention. The water negative oxygen ion generator 2 can be widely used to improve air quality in home environments or office spaces.
[0031] In one embodiment, such as Figure 1-5 As shown, an anti-backflow structure 1 is provided in a water negative oxygen ion generator 2. The water negative oxygen ion generator 2 includes a water storage tank 21, an atomizing water tank 22, and a negative charge output device 23. The atomizing water tank 22 is provided with an atomizing chamber. The anti-backflow structure 1 includes an air inlet 11 provided in the atomizing chamber and a cover 12 invertedly provided on the air inlet 11. The air inlet 11 is set to open upward, and the height of the left and right side walls of the air inlet 11 is lower than the height of the front and rear side walls. The lower edge of the cover 12 covers at least to the bottom of the left and right side walls of the air inlet 11, and there is a space between the left and right side inner walls of the cover 12 and the left and right side walls of the air inlet 11 to allow the airflow to flow downward.
[0032] The air inlet 11 is located at the upper part of the air inlet chamber, which is located on the lower side of the atomizing water tank 22, and the bottom of the air inlet chamber is equipped with an air intake fan 13.
[0033] The above embodiment improves the structure of the air inlet 11, making the air inlet 11 open upwards, and the left and right side walls of the air inlet 11 are lower than the front and rear side walls. A cover 12 is provided on the air inlet 11, and the air coming from the air inlet cavity is blocked by the cover 12, so that it can only go down from the left and right sides and is not easy to flow back. At the same time, the cover 12 surrounds the air inlet 11, 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 2. Moreover, the air inlet 11 opens upwards, and the airflow blown in by the air inlet fan 13 enters the atomization cavity from both sides downwards through the cover 12, so that the water molecules can be evenly sprayed out through the mist outlet pipes 222 on both sides of the top of the atomization cavity after atomization. This avoids the problem of uneven mist output from the two mist outlet pipes 222 caused by the vortex-like airflow formed by the unidirectional air inlet in the atomization cavity, thereby ensuring the negative oxygen ion generation and dynamic appearance effect of the water negative oxygen ion generator 2.
[0034] In one embodiment, the top inner wall of the cover 12 contacts the top surfaces of the front and rear side walls of the air inlet 11, and the front and rear inner side walls of the cover 12 are respectively fitted to the front and rear side walls of the air inlet 11 to achieve sealing of the front and rear sides of the air inlet 11, ensuring that the airflow from the air inlet 11 flows out downwards only from the left and right sides.
[0035] In one embodiment, a recessed platform 110 is provided on the outer wall of the air inlet 11, and the lower edge of the cover 12 is placed on the recessed platform 110. The top surfaces on both sides of the recessed platform 110 are in contact with the lower edge surfaces on the front and rear sides of the cover 12, which strengthens the sealing of the front and rear sides of the air inlet 11. On the one hand, it can effectively prevent airflow from overflowing from the front and rear sides of the air inlet 11, and on the other hand, it can also prevent water vapor from flowing back.
[0036] In one embodiment, the upper corners of the cover 12 are both arc-shaped transition angles to avoid scratching the inner wall of the atomizing chamber.
[0037] In one embodiment, the air inlet 11 and the atomizing water tank 22 are integrally formed, which facilitates processing and assembly.
[0038] In one embodiment, both the water storage tank 21 and the atomizing water tank 22 are made of plastic material mixed with mixed rare earth ionization material, which includes mixed rare earth and tourmaline powder.
[0039] The plastic material can be PP or ABS plastic; the water storage tank 21 and the atomizing water tank 22 are injection molded using plastic materials with added mixed rare earth ionized materials. The plastic material can 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 is composed of the following components by weight percentage: 3-5% antistatic agent, 2-5% tourmaline powder, and 0.5-1.5% mixed rare earth.
[0040] In the above embodiments, both the water storage tank 21 and the atomizing water tank 22 are made of plastic mixed with mixed rare earth ionizing materials. Since the air inlet 11 and the atomizing water tank 22 are integrally formed, the air inlet 11 itself also has an auxiliary ionization function, which helps to enhance the ionization efficiency.
[0041] In another embodiment, a water negative oxygen ion generator 2 is provided, as in any of the above embodiments, the anti-backflow structure 1.
[0042] In the above embodiments, such as Figure 1-5 As shown, the water negative oxygen ion generator 2 includes a water storage tank 21, an atomizing water tank 22, and a negative charge output device 23. The atomizing water tank 22 has an atomizing chamber, and the bottom of the atomizing chamber is equipped with an ultrasonic ceramic transducer and a water level sensor. The water storage tank 21 is connected to the atomizing water tank 22 to supply water to the atomizing chamber. The water is atomized into water mist by ultrasonic vibration. The water storage tank 21 and the atomizing water tank 22 are injection molded using plastic materials with added mixed rare earth ionizing materials. These materials are used to ionize water molecules and prevent the loss of negative charges generated by ultrasonic atomization due to electrostatic discharge. By directly adding the mixed rare earth ionizing materials to the plastic material, the water storage tank 21 and the atomizing water tank 22 themselves have ionization capabilities, resulting in smaller and more uniform water mist particles after ultrasonic atomization, and reducing the loss of negative charges, thereby preventing the loss of negative oxygen ions.
[0043] In one embodiment, such as Figure 6 As shown, the negative charge output device 23 includes a conical tube 231, a fan bracket 232, and a silent fan 233. The silent fan 233 is mounted on the fan bracket 232. The front end of the fan bracket 232 is provided with a needle holder into which the conical tube 231 can be inserted. A negative charge output needle is installed on the front end ring of the needle holder. The fan bracket 232 is fixedly connected to the rear end of the conical tube 231 so that the air outlet of the silent fan 233 is aligned with the opening at the rear end of the conical tube 231, and the negative charge output needle is located at the outlet position at the front end of the conical tube 231.
[0044] In the prior art, the negative charge output needle is located at the outlet of the tapered tube 231. However, in actual production, the narrow outlet of the tapered tube 231 makes installation difficult.
[0045] In the above embodiment, by setting a needle holder into which a tapered tube 231 can be inserted at the front end of the fan bracket 232, and then installing the negative charge output needle on the ring at the front end of the needle holder, the installation difficulty is simplified and production efficiency is improved.
[0046] In one embodiment, such as Figure 7As shown, the top of the atomizing water tank 22 is provided with a forward-sloping mist outlet 221, and the mist outlet 221 is detachably connected to a mist outlet pipe 222; the outlet of the mist outlet pipe 222 is close to the outlet of the conical pipe 231.
[0047] The outlet of the mist outlet pipe 222 faces forward, and the inlet diameter is larger than the outlet diameter; the tilt angle is 30 to 60 degrees, preferably 45 degrees; the front-to-back distance between the outlet of the mist outlet pipe 222 and the outlet of the conical pipe 231 is 5 to 15 mm.
[0048] In one embodiment, the top of the atomizing water tank 22 is symmetrically provided with two mist outlets 221, each mist outlet 221 is detachably connected to a mist outlet pipe 222, and the outlets of the two mist outlet pipes 222 are symmetrically located on both sides of the outlet of the conical pipe 231.
[0049] The two mist outlet pipes 222 are connected as one unit by an arc-shaped mounting part 223. The arc-shaped mounting part 223 has at least one mounting hole on each side of each mist outlet pipe 222. The two mist outlets 221 have mounting seats on both sides that cooperate with the mounting holes. The two mist outlet pipes 222 are connected to the two mist outlets 221 through the arc-shaped mounting part 223.
[0050] The above embodiment reduces the difficulty of injection molding manufacturing of the atomizing water tank 22 by using a mist outlet pipe 222 that is detachably connected to the mist outlet 221, and makes the assembly method of the atomizing water tank 22 more flexible. At the same time, by connecting the two mist outlet pipes 222 into a whole by the arc-shaped mounting part 223 and installing them together on the mist outlet 221, the accuracy of the installation position can be improved and the installation can be made simpler.
[0051] In the water negative oxygen ion generator 2 of the above embodiments, the negative charge output device 23 is installed above the atomizing water tank 22. The front end of the negative charge output device 23 is a conical tube 231, and the outlet of the conical tube 231 is provided with a negative charge output needle. The rear end of the negative charge output device 23 is provided with a silent fan 233 for blowing the negative oxygen ions generated by ionization out of the conical tube 231. The top of the atomizing water tank 22 is provided with a mist outlet pipe 222. The inlet of the mist outlet pipe 222 is connected to the atomizing water tank 22, and the outlet of the mist outlet pipe 222 is close to the outlet of the conical tube 231. The lower side of the atomizing water tank 22 is provided with an air inlet chamber. The upper part of the air inlet chamber is provided with an air inlet 11, and the bottom of the air inlet chamber is provided with an air inlet fan 13 for blowing the water mist generated by ultrasonic atomization upward.
[0052] The negative charge output device 23 can ionize the air with negative high voltage to generate negative oxygen ions. In specific implementation, due to the weight and high density of water molecules after atomization, there is a certain charge loss at the outlet of the mist outlet 222, and the migration distance is shortened. Therefore, the negative charge output device 23 is set near the outlet of the mist outlet 222 to generate more negative charges. On the one hand, it can neutralize the number of positive ions at the outlet of the mist outlet 222, and on the other hand, it can make the water molecules at the outlet of the mist outlet 222 carry more negative charges, forming a high-concentration, small molecular cluster light ion effect at the mist outlet 221.
[0053] Furthermore, the atomizing water tank 22 may include a detachably connected upper shell and a lower shell. The air inlet cavity is located on one side of the lower shell and is integrally formed with it. The upper shell includes an annular inner wall and an outer wall. The height of the outer wall is lower than that of the inner wall, and the lower outer side of the outer wall is connected to the upper inner side of the lower shell. The lower end of the inner wall extends into the cavity of the lower shell. The side of the inner wall facing the air inlet cavity is recessed to fit the air inlet cavity, and the lower end of the recess is also provided with a notch to allow the airflow from the air inlet 11 to pass through. The ultrasonic ceramic transducer is located in the middle of the bottom of the lower shell, and the bottom of the side wall of the lower shell is provided with an inlet that communicates with the water storage tank 21.
[0054] The anti-backflow structure and other components and operation of the water negative oxygen ion generator according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.
[0055] 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.
[0056] 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.
[0057] 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. A backflow prevention structure, disposed in a water negative oxygen ion generator, the water negative oxygen ion generator comprising a water storage tank, an atomizing water tank, and a negative charge output device, wherein the atomizing water tank is provided with an atomizing chamber, characterized in that: 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.
2. The anti-backflow structure according to claim 1, characterized in that: The top inner wall of the cover contacts the top surfaces of the front and rear side walls of the air inlet, and the front and rear inner side walls of the cover are respectively attached to the front and rear side walls of the air inlet.
3. The anti-backflow structure according to claim 2, characterized in that: The outer wall of the air inlet is provided with a recessed platform, and the lower edge of the cover rests on the recessed platform.
4. The anti-backflow structure according to claim 3, characterized in that: The upper corners of the cover are both arc-shaped transition angles.
5. A backflow prevention structure according to any one of claims 1 to 4, characterized in that: The air inlet and the atomizing water tank are integrally formed.
6. The anti-backflow structure according to claim 5, characterized in that: Both the water storage tank and the atomizing water tank are made of plastic material mixed with a rare earth ionization material, which includes mixed rare earth and tourmaline powder.
7. A water negative oxygen ion generating device, characterized in that: Includes the anti-backflow structure as described in any one of claims 1 to 6.
8. The water negative oxygen ion generating device according to claim 7, characterized in that: The negative charge output device includes a conical tube, a fan bracket, and a silent fan; The silent fan is mounted on the fan bracket, and the front end of the fan bracket is provided with a needle bracket into which the tapered tube can be inserted. A negative charge output needle is mounted on the front ring of the needle bracket. The fan bracket is fixedly connected to the rear end of the tapered tube so that the air outlet of the silent fan is aligned with the opening at the rear end of the tapered tube, and the negative charge output needle is located at the outlet position at the front end of the tapered tube.
9. A water negative oxygen ion generating device according to claim 8, characterized in that: The top of the atomizing water tank is provided with a forward-sloping mist outlet, which is detachably connected to a mist outlet pipe; the outlet of the mist outlet pipe is close to the outlet of the conical tube.
10. A water negative oxygen ion generating device according to claim 9, characterized in that: The top of the atomizing water tank is symmetrically provided with two mist outlets, each of which is detachably connected to a mist outlet pipe, and the outlets of the two mist outlet pipes are symmetrically located on both sides of the outlet of the conical pipe. The two mist outlet pipes are connected as one unit by an arc-shaped mounting part. The arc-shaped mounting part has at least one mounting hole on each side of each mist outlet pipe. The two mist outlets have mounting seats on both sides that cooperate with the mounting holes. The two mist outlet pipes are connected to the two mist outlets through the arc-shaped mounting part.