A device for generating negative oxygen ions by water excitation

Abstract

The present application discloses a device for water-excited negative oxygen ions, which includes a water storage tank, an atomization tank, a negative charge output device, and a circuit control system; the negative charge output device is installed above the atomization tank, the front end of the negative charge output device is a conical tube, a negative charge output needle is provided at the outlet position of the conical tube, and a first fan is provided at the rear end of the negative charge output device; the water storage tank is communicated with the lower part of the atomization tank, an ultrasonic ceramic transducer is provided at the bottom of the atomization tank, at least one mist outlet pipe is provided at the top of the atomization tank, and the outlet of the mist outlet pipe is close to the outlet of the conical tube; an air inlet cavity is provided on the lower side surface of the atomization tank, an air inlet is provided at the upper part of the air inlet cavity, the air inlet is located inside the atomization tank and faces the inner side wall of the atomization tank, and a second fan is provided at the bottom of the air inlet cavity. The device for water-excited negative oxygen ions provided by the present invention can output a large amount of negative oxygen ions, the migration distance of the negative oxygen ions is far, the service life of the device is long, and the operation noise is low.

Description

Technical Field

[0001] The present invention relates to the technical field of negative oxygen ions, and in particular to a device for generating negative oxygen ions by water excitation. Background Art

[0002] Negative oxygen ions have the function of air purification and can effectively optimize air quality. However, there are mainly two types of water negative oxygen ion generating devices on the market: one is to generate negative oxygen ions by water excitation, mainly by the compressed gas of a compressor hitting a metal sheet at high pressure to produce the cracking of water, and obtaining negative oxygen ions through the Bernoulli effect. On the one hand, the number of negative oxygen ions obtained is relatively low. On the other hand, the particle size of the negative oxygen ions generated under this impact is relatively large, resulting in a short migration distance of the negative oxygen ions. Therefore, it is usually only suitable for the human body to obtain negative oxygen ions through nasal inhalation. In addition, due to the high-pressure gas of the compressor hitting the metal sheet, the noise generated by the compressor hitting the water during the operation of the device is very large, affecting the use experience of consumers. The other device uses a mesh piezoelectric ceramic sheet for atomization treatment of water. However, the mesh atomization sheet is easily affected by water during use, and the mesh must be externally placed and is easily affected by dust in the air environment, and the mesh is easily blocked, affecting the atomization effect. Secondly, the service life of the existing mesh atomization sheets on the market is relatively short, resulting in a short service life of the device. In addition, the device adopts an upper structure with a mesh atomization sheet placed on the water. Coupled with the fact that pure water is generally weakly acidic, it will affect the service life of the structural sealant, so the structure of the device is prone to water leakage, inevitably reducing the use experience of consumers, and the water leakage may cause electric leakage, with poor safety. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a device for generating negative oxygen ions by water excitation, which can output a large number of negative oxygen ions, and the negative oxygen ions have a long migration distance, the device has a long service life, and the operation noise is low.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a device for generating negative oxygen ions by water excitation, the device includes a water storage tank, an atomization tank, a negative charge output device, and a circuit control system; the negative charge output device is installed above the atomization tank, the front end of the negative charge output device is a conical tube, a negative charge output needle is provided at the outlet position of the conical tube, and a first fan is provided at the rear end of the negative charge output device; the water storage tank is communicated with the lower part of the atomization tank, an ultrasonic ceramic transducer is provided at the bottom of the atomization tank, at least one mist outlet pipe is provided at the top of the atomization tank, and the outlet of the mist outlet pipe is close to the outlet of the conical tube; an air inlet cavity is provided on the lower side surface of the atomization tank, an air inlet is provided at the upper part of the air inlet cavity, the air inlet is located inside the atomization tank and faces the inner side wall of the atomization tank, and a second fan is provided at the bottom of the air inlet cavity.

[0005] In a preferred technical solution, both the water storage tank and the atomization tank are made of PP plastic. When the water storage tank and the atomization tank are injection-molded, PP plastic materials added with a mixed rare earth ionization material are used, so that the water storage tank and the atomization tank have an ionization function; the mixed rare earth ionization material includes mixed rare earth and tourmaline powder. In this technology, the mixed rare earth ionization material is used to ionize water molecules and prevent the negative charges generated by ultrasonic atomization from being lost due to static electricity. By directly adding the mixed rare earth ionization material to the PP plastic material, the water storage tank and the atomization tank themselves have an ionization function, which can make the water mist particles after ultrasonic atomization smaller and more uniform, and reduce the loss of negative charges, thereby avoiding the loss of negative oxygen ions.

[0006] A device for generating negative oxygen ions by water excitation provided by this technical solution can combine water tank static ionization, ultrasonic atomization and a negative charge output device to increase the generation amount of negative oxygen ions, and a fan is set to increase the migration distance of negative oxygen ions; at the same time, an ultrasonic ceramic transducer with a longer service life and lower noise is adopted, making the device have the advantages of a long service life and low noise; in addition, the ultrasonic ceramic transducer is arranged at the bottom of the atomization tank, and it is not easy to leak water in terms of structure.

[0007] In a preferred technical solution, the PP plastic material is composed of the following components by weight percentage: 75-85% of polypropylene, 10-15% of filler, 0.5-1.5% of stabilizer, 2-4% of white mineral oil, and 1-3% of colorant; the mixed rare earth ionization material is composed of the following components by weight percentage: 3-5% of antistatic agent, 2-5% of tourmaline powder, and 0.5-1.5% of mixed rare earth.

[0008] Furthermore, the preparation method of the PP plastic material added with the mixed rare earth ionization material includes: mixing polypropylene, filler, and stabilizer, first adding white mineral oil, stirring and mixing for 15-20 minutes, and then adding antistatic agent, tourmaline powder, and mixed rare earth in sequence, and continuing to stir for 30 minutes.

[0009] In this technology, the water storage tank and the atomization tank have an ionization function, which can break the hydrogen bond of water molecules into small molecular clusters of water, make the particles after ultrasonic atomization smaller and more uniform, and an antistatic agent is added, which can further prevent the charges generated after the ultrasonic atomization of water molecules from losing negative charge due to the positive charge generated by the PP plastic parts, thereby effectively preventing the loss of negative oxygen ions.

[0010] In a preferred technical solution, a water supply cavity is arranged below the water storage tank, a solenoid valve is arranged in the water supply cavity, and the water supply cavity is communicated with the water outlet at the bottom of the water storage tank through the solenoid valve; the water supply cavity is communicated with the lower side of the atomization tank. In this technology, the water storage tank is communicated with the atomization tank through the water supply cavity, which is convenient for supplying water to the atomization tank.

[0011] In a preferred technical solution, the atomization water tank includes an upper water tank shell and a lower water tank shell that are detachably connected together, facilitating installation and disassembly; the air inlet cavity is provided on one side of the lower water tank shell and is integrally formed with the lower water tank shell; the upper water tank 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 outer side of the lower part of the outer wall is fitted and connected with the inner side of the top of the lower water tank shell; the lower end of the inner wall extends into the cavity of the lower water tank shell, and an arc-shaped concave is provided on the side of the inner wall facing the air inlet cavity to fit the air inlet cavity, and an air outlet is also opened at the lower end of the arc-shaped concave, the air inlet is located between the inner wall and the outer wall and faces the direction of the outer wall; the ultrasonic ceramic transducer is provided at the bottom of the lower water tank shell, and a through hole communicating with the water supply cavity is provided at the bottom of the side wall of the lower water tank shell.

[0012] This technology can prevent water particles from splashing into the air inlet cavity, the water supply cavity, and the annular area between the inner wall and the outer wall during ultrasonic atomization in the atomization water tank, with better waterproof performance, and thus structurally prevent water leakage.

[0013] In a preferred technical solution, a downward conical boss is further provided at the axis of the upper water tank shell, and the height of the conical boss is lower than that of the outer wall; the inlet of the mist outlet pipe is located between the conical boss and the inner wall. When the ultrasonic ceramic transducer atomizes, the acting force of the ultrasonic ceramic transducer reduces the surface tension of the water, usually causing the water to splash too high. The conical boss in this technology is a water-blocking structure, mainly used to block the water splashed during ultrasonic atomization, prevent the water from splashing too high, avoid the wind force of the second fan from blowing the large particle water droplets splashed out of the outlet of the mist outlet pipe. At the same time, the conical boss can also reduce the water splash noise by restricting the splashing height of the water.

[0014] In a preferred technical solution, a number of convex strips are distributed circumferentially along the inner side of the inner wall, which can prevent large particle water mist from reaching the outside. At the same time, the convex strips can also increase the ionization intensity in the atomization water tank cavity, making it difficult for the water molecules carrying negative charges in the top cavity of the atomization water tank to lose electrons.

[0015] In a preferred technical solution, the mist outlet pipe is arranged at an inclined angle at the top of the atomization water tank, and the inclined angle is 30 - 60 degrees. The inclined angle design of the mist outlet pipe enables the condensed water mist to flow back into the atomization water tank naturally.

[0016] In a preferred technical solution, the inlet diameter of the mist outlet pipe is larger than the outlet diameter; the number of mist outlet pipes is 2, and the outlets of the 2 mist outlet pipes are respectively located on both sides of the outlet of the conical pipe; the front-back distance between the outlet of the mist outlet pipe and the outlet of the conical pipe is 5 - 15 mm, which can avoid the situation that the large air volume at the outlet of the conical pipe causes the air duct at the outlet of the mist outlet pipe to shift and form condensed water droplets dripping at the outlet of the mist outlet pipe. And the negative charges at the outlet of the conical pipe form a spiral mixing with the water pipes of the two mist outlet pipes on both sides under the action of wind force, making the atomized negative oxygen ions carry more charges and increasing the migration distance of the negative oxygen ions.

[0017] Further, the inclination angle is 45 degrees; the front-back distance between the outlet of the fog outlet pipe and the outlet of the conical pipe is 10 mm.

[0018] In a preferred technical solution, the operating frequency of the ultrasonic ceramic transducer is 3 MHz, exceeding the vibration frequencies of 1.7 MHz or 2.4 MHz of general ultrasonic ceramic transducers, forming smaller water mist particles, more delicate atomization, and less water consumption.

[0019] In a preferred technical solution, the circuit control system includes a control panel, and the control panel is electrically connected to the first fan, the second fan, the ultrasonic ceramic transducer, and the negative charge output needle respectively; the control panel is provided with a power key, a mode switching key, a timing key, and a plurality of indicator lights, and the plurality of indicator lights include the indicator lights corresponding to the power key, the mode switching key, and the timing key respectively; when the control panel receives the shutdown signal sent by the power key, it first turns off the ultrasonic ceramic transducer and the negative charge output needle, and then turns off the first fan and the second fan after a preset time delay, so that the fan works for a period of time to clear the fog in the atomization water tank; the mode switching key is used to generate a mode switching signal, and the control panel controls the device to perform switching between the first mode and the second mode according to the mode switching signal, which is simple and convenient to operate; the timing key is used to set the working time, and the control panel controls the device to automatically shut down according to the set working time, which is convenient to use.

[0020] In a preferred technical solution, a water level sensor is further provided at the bottom of the atomization water tank, and the water level sensor is electrically connected to the control panel; when the water level sensor detects that the water level in the atomization water tank is lower than the alarm threshold, it sends a water level alarm signal to the control panel; the control panel controls the first fan, the second fan, the ultrasonic ceramic transducer, and the negative charge output needle to stop working in response to the water level alarm signal, and controls the indicator light corresponding to the power key to flash red to play a role in water level alarm.

[0021] From the above technical solutions, it can be seen that compared with the prior art, the beneficial effects of the present invention are as follows: A water-excited negative oxygen ion generating device provided by the present invention can combine static ionization of the water tank, ultrasonic atomization, and high-voltage ionization to increase the generation amount of negative oxygen ions, and set a fan to increase the migration distance of negative oxygen ions; at the same time, an ultrasonic ceramic transducer with a longer service life and lower noise is adopted, so that the device has the advantages of long service life and low noise; in addition, the ultrasonic ceramic transducer is arranged at the bottom of the atomization water tank, and it is not easy to leak water structurally.

[0022] In addition, other advantages of the present invention will be given in the following description, some of which will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0024] Figure 1 Schematic diagram of the decomposition structure of the device for water-activated negative oxygen ions in the embodiment of the present invention;

[0025] Figure 2 Schematic diagram of the whole machine of the device for water-activated negative oxygen ions in the embodiment of the present invention;

[0026] Figure 3 is Figure 2 Schematic diagram of the cross-sectional structure at the A-A position in

[0027] Figure 4 is Figure 2 Schematic diagram of the cross-sectional structure at the B-B position in

[0028] Figure 5 Top view of the mounting plate in the embodiment of the present invention;

[0029] Figure 6 Schematic diagram of the structure of the mounting plate in the embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the internal structure of the upper shell of the water tank in the embodiment of the present invention;

[0031] Explanation of reference numerals: 1, water storage tank; 2, atomization water tank; 20, air inlet chamber; 21, second fan; 22, air inlet; 23, upper shell of the water tank; 231, inner wall; 232, outer wall; 233, conical boss; 234, rib; 235, air outlet; 24, lower shell of the water tank; 241, through hole; 242, water level sensor; 25, fog outlet pipe; 3, negative charge output device; 31, first fan; 4, water supply chamber; 5, mounting plate; 6, base; 7, upper machine shell; 8, panel; 9, control panel. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0034] Referring to Figures 1-7 Describe a device for water-excited negative oxygen ions according to an embodiment of the present invention, which can be widely used to improve the air quality in home environments or office places.

[0035] In one embodiment, as Figures 1-4 shown, a device for water-excited negative oxygen ions may include a water storage tank 1, an atomization tank 2, a negative charge output device 3, and a circuit control system.

[0036] The negative charge output device 3 is installed above the atomization tank 2. The front end of the negative charge output device 3 is a conical tube, and a negative charge output needle is provided at the outlet position of the conical tube. A first fan 31 is provided at the rear end of the negative charge output device 3 for blowing the negative oxygen ions generated by ionization out of the conical tube.

[0037] The water storage tank 1 is communicated with the lower part of the atomization tank 2. An ultrasonic ceramic transducer is provided at the bottom of the atomization tank 2. At least one fog outlet pipe 25 is provided at the top of the atomization tank 2. The inlet diameter of the fog outlet pipe 25 is larger than the outlet diameter. The inlet of the fog outlet pipe 25 is communicated with the atomization tank 2, and the outlet of the fog outlet pipe 25 is close to the outlet of the conical tube.

[0038] An air inlet chamber 20 is provided on the lower side of the atomization tank 2. An air inlet 22 is provided at the upper part of the air inlet chamber 20. The air inlet 22 is located inside the atomization tank 2 and faces the inner side wall of the atomization tank 2. A second fan 21 is provided at the bottom of the air inlet chamber 20 for blowing the water mist generated by ultrasonic atomization upward. Specifically, in implementation, the air inlet 22 can be set at a distance of 15 cm from the highest water surface inside the atomization tank 2.

[0039] Among them, the negative charge output device 3 can perform negative high-voltage ionization on air 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 pipe 25, and the migration distance becomes shorter. Therefore, a negative charge output device 3 is set near the outlet of the mist outlet pipe 25 to generate more negative charges. On the one hand, it can neutralize the number of positive ions at the outlet of the mist outlet pipe 25, and on the other hand, it can make the water molecules at the outlet of the mist outlet pipe 25 carry more negative charges, forming a high-concentration, small-molecule cluster light ion effect at the mist outlet. The ionization voltage used by the negative charge output device 3 can be 6 to 8 kV, or it can be set to other values that meet the actual ionization requirements, not limited to 6 to 8 kV.

[0040] In this embodiment, the operating frequency of the ultrasonic ceramic transducer is not less than 3 MHz, and 3 MHz can be preferably selected. The high-frequency oscillation of the ultrasonic ceramic transducer can make the atomization particle size of water molecules smaller, so that the migration distance is farther, and the molecular bonds between liquid water molecules are broken more thoroughly, forming a finer water mist. The above ultrasonic ceramic transducer has low working noise and a large atomization amount, and is more suitable for naturally diffusing and flowing in a fixed space to form negative oxygen ions in the air; in addition, the ultrasonic ceramic transducer is arranged at the bottom of the atomization water tank 2, so there is no risk of water leakage, reducing the safety risk of equipment use and extending the service life.

[0041] Due to the large amount of water molecules at the outlet of the mist outlet pipe 25 and the relatively high density, condensed water is easily generated. Therefore, in this embodiment, the mist outlet pipe 25 is arranged at the top of the atomization water tank 2 at an inclined angle, and the inclined angle can be 30 to 60 degrees, which is convenient for the generated condensed water to flow back into the atomization water tank 2; the number of mist outlet pipes 25 can be 2, and the outlets of the two mist outlet pipes 25 are respectively located on both sides of the outlet of the conical pipe; the front-back distance between the outlet of the mist outlet pipe 25 and the outlet of the conical pipe can be 5 to 15 mm, which can avoid the large air volume at the outlet of the conical pipe causing the air duct at the outlet of the mist outlet pipe 25 to shift and forming condensed water droplets dripping at the outlet of the mist outlet pipe 25.

[0042] As an implementation manner of this embodiment, the inclined angle can be set to 30 degrees, 45 degrees or 60 degrees, and the front-back distance between the outlet of the mist outlet pipe 25 and the outlet of the conical pipe is 5 mm, 10 mm or 15 mm.

[0043] During specific implementation, the high-frequency vibration of the ultrasonic ceramic transducer breaks up liquid water molecules to generate naturally floating water mist, and then the wind speed of the second fan 21 presses the water mist to move upward, bringing out a larger amount of water negative ions; the wind speed of the first fan 31 can be set to be slightly greater than that of the second fan 21. After being ionized by negative high voltage, the negative oxygen ions are blown out together with the water mist by the high-speed air flow, and the migration distance is farther. At the same time, since the high-speed air flow can form a spiral convection air duct with the water mist, the negative oxygen ions after high negative voltage ionization can be more evenly combined with the water mist to form high-concentration water negative oxygen ions, which can purify the air, improve health and create a comfortable environment.

[0044] In one embodiment, both the water storage tank 1 and the atomization tank 2 are made of PP plastic material. When the water storage tank 1 and the atomization tank 2 are injection-molded, PP plastic material added with a mixed rare earth ionization material is used, so that the water storage tank 1 and the atomization tank 2 have an ionization function; the mixed rare earth ionization material includes mixed rare earth and tourmaline powder. Among them, the tourmaline powder can be tourmaline far-infrared functional powder. The mixed rare earth ionization material can be used to ionize water molecules and prevent the loss of negative charges generated by ultrasonic atomization due to static electricity. In this embodiment, on the one hand, the water storage tank 1 and the atomization tank 2 can utilize the ionization function of the mixed rare earth ionization material to break the hydrogen bond of water molecules into small molecular clusters of water, making the water mist particles after ultrasonic atomization smaller and more uniform; on the other hand, the mixed rare earth ionization material can reduce the loss of negative charges, thereby avoiding the loss of negative oxygen ions.

[0045] In the above embodiment, the PP plastic material is composed of the following components by weight percentage: polypropylene 75-85%, filler 10-15%, stabilizer 05-1.5%, white mineral oil 2-4%, colorant 1-3%; the mixed rare earth ionization material is composed of the following components by weight percentage: antistatic agent 3-5%, tourmaline powder 2-5%, mixed rare earth 0.5-1.5%.

[0046] The preparation method of the above PP plastic material added with a mixed rare earth ionization material may include: mixing polypropylene, filler, and stabilizer, first adding white mineral oil, and stirring and mixing for 15-20 minutes to make the surface of the polypropylene masterbatch have a certain adhesiveness, and then sequentially adding an antistatic agent, tourmaline powder, and mixed rare earth, and continuing to stir for 30 minutes to make the antistatic agent, tourmaline powder, and mixed rare earth evenly distributed on the surface of all polypropylene to obtain the PP plastic material added with a mixed rare earth ionization material. Using the above PP plastic material added with a mixed rare earth ionization material for injection molding can obtain a water storage tank and an atomization tank with an ionization function.

[0047] Among them, the PP plastic material is polypropylene. Polypropylene is a non-toxic, odorless, and tasteless milky white highly crystalline polymer, and it is one of the lightest varieties among all plastics. Fillers can use the commonly used fillers for PP plastics, such as calcium carbonate, wollastonite, barium sulfate, kaolin, talc powder, etc.; stabilizers can use the commonly used heat stabilizers for PP plastics, such as lead salts, metal soaps, organotin, organoantimony, organic rare earths, pure organic compounds, etc.

[0048] In the specific implementation process, during ultrasonic atomization, the temperature in the atomization water tank 2 rises. When pure water is atomized by ultrasonic waves, the Lenard effect is generated during the cracking process, and more and smaller water molecules carry charges. However, on the inner side wall of the atomization water tank 2, in an environment with rising temperature and high humidity, static electricity is likely to accumulate and the charges generated by water molecules during the cracking process will be lost, and it will also affect the dissipation speed of static electricity. Therefore, 3-5% of polycarbonate antistatic materials are added to the mixed rare earth ionization material to make the inner surface of the atomization water tank 2 reach a high resistivity, so that the electron groups of water molecules carrying excess charges in the cavity of the atomization water tank 2 are not easily lost, thus ensuring the output quantity of negative ions.

[0049] Tourmaline powder has pyroelectricity and piezoelectricity, and the mixed rare earth ionization material has self-ionization property, and both of these two materials have the emissivity of far-infrared rays. After adding the above two materials to the water storage tank 1 and the atomization water tank 2, the two water tanks themselves have ionization property. During the water storage process of the two water tanks, their own ionization property plays a role, breaking the hydrogen bonds of water and becoming small molecular cluster water. When ultrasonic atomizing water, a larger amount of electrons are generated, and combined with oxygen molecules in the air, a larger amount of negative oxygen ions can be generated.

[0050] The above embodiments utilize the ionization function of the mixed rare earth ionization material, enabling the water storage tank 1 and the atomization water tank 2 to have the function of ionizing water molecules during the water storage process. The water molecules can be ionized into small molecular cluster water first, and the particle size after ultrasonic atomization can be smaller and more uniform; and antistatic agents are added to the mixed rare earth ionization material, which can further prevent the charges generated after the ultrasonic atomization and cracking of water molecules from losing negative charges due to the positive charges generated by PP plastic parts, thus effectively preventing the loss of negative oxygen ions.

[0051] In this embodiment, as Figure 5 and Figure 6 shown, a water supply cavity 4 is provided below the water storage tank 1. A solenoid valve is provided in the water supply cavity 4. The water supply cavity 4 is communicated with the water outlet at the bottom of the water storage tank 1 through the solenoid valve; the water supply cavity 4 is communicated with the lower side surface of the atomization water tank 2. Among them, the water storage tank 1 is communicated with the atomization water tank 2 through the water supply cavity 4, which is convenient for supplying water to the atomization water tank 2.

[0052] In this embodiment, the atomizing water tank 2 includes an upper water tank shell 23 and a lower water tank shell 24 that are detachably connected together; the air inlet chamber 20 is provided on one side of the lower water tank shell and is integrally formed with the lower water tank shell. As Figure 7 shown, the upper water tank shell 23 includes an annular inner wall 231 and an outer wall 232. The height of the outer wall 232 is lower than that of the inner wall 231, and the outer side of the lower part of the outer wall 232 is in mating connection with the inner side of the top of the lower water tank shell 24 to achieve sealing; the lower end of the inner wall 231 extends into the cavity of the lower water tank shell 24. An arc-shaped concave is provided on the side of the inner wall 231 facing the air inlet chamber 20 to fit the air inlet chamber 20, and an air outlet 235 is further opened at the lower end of the arc-shaped concave. The air inlet 22 is located between the inner wall 231 and the outer wall 232 and faces the direction of the outer wall 232. Specifically, the air blown by the second fan 21 enters the annular area between the inner wall 231 and the outer wall 232 from the air inlet 22, and then enters the area enclosed by the inner wall 231 from the lower end of the annular area and the air outlet 235, and blows the water mist upward through the mist outlet pipe 25.

[0053] The ultrasonic ceramic transducer is provided at the bottom of the lower water tank shell 24. A through hole 241 communicating with the water supply chamber is provided at the bottom of the side wall of the lower water tank shell 24. The lower water tank shell 24 and the top end of the water supply chamber 4 are both provided on a horizontally arranged mounting plate 5. The structure of the above embodiment can prevent water particles from splashing into the air inlet chamber 20, the water supply chamber 4, and the annular area between the inner wall 231 and the outer wall 232 during ultrasonic atomization in the atomizing water tank, with better waterproof performance and avoiding water leakage.

[0054] In this embodiment, a downward conical boss 233 is further provided at the axis of the upper water tank shell 23. The height of the conical boss 233 is lower than that of the outer wall 232; the inlet of the mist outlet pipe 25 is located between the conical boss 233 and the inner wall 231. The above conical boss 233 can be used to block the water splashed during ultrasonic atomization and reduce the noise of the splashed water.

[0055] In this embodiment, a plurality of convex strips 234 are circumferentially distributed on the inner side of the inner wall 231. While increasing the ionization surface area inside the atomizing water tank, it can prevent large water mist particles from reaching the outside and play a guiding role; when the convex strips 234 are integrally formed with the atomizing water tank 2 and have the same material, both being a mixed rare earth ionization material, it can also perform secondary ionization atomization on the atomized water particles.

[0056] In this embodiment, the above circuit control system includes a control panel 9, which is electrically connected to a first fan 31, a second fan 21, an ultrasonic ceramic transducer, and a negative charge output needle respectively; on the control panel 9, there are a power key, a mode switching key, a timing key, and multiple indicator lights, and the multiple indicator lights include the indicator lights corresponding to the power key, the mode switching key, and the timing key respectively. For example, there is a power indicator light above the power key, 2 mode indicator lights above the mode switching key, and 3 duration indicator lights above the timing key.

[0057] Among them, the power key generates a power-on signal or a power-off signal based on user operation. When the control panel 9 receives the power-on signal sent by the power key, it controls the first fan 31, the second fan 21, the ultrasonic ceramic transducer, and the negative charge output needle to start working, realizing the power-on operation, and there is no time delay for power-on; when the control panel 9 receives the power-off signal sent by the power key, it first turns off the ultrasonic ceramic transducer and the negative charge output needle, and then turns off the first fan 31 and the second fan 21 after a preset delay. Specifically, when the device is powered on, the power indicator light shows red. Press the power key, and the power indicator light shows the green working state, and the default working mode is the first mode.

[0058] The mode switching key is used to generate a mode switching signal, and the control panel 9 controls the device to perform switching between the first mode and the second mode according to the mode switching signal, and the mode indicator light indicates the current working mode; specifically, the mode switching key can directly switch the mode by pressing it once. In the first mode, the water consumption of the ultrasonic ceramic transducer is 60 - 80 ml / h, and the rotation speeds of both the first fan 31 and the second fan 21 are 5000 r / min; in the second mode, the water consumption of the ultrasonic ceramic transducer is 80 - 100 ml / h, the rotation speed of the first fan 31 is 7000 r / min, and the rotation speed of the second fan 21 is 5000 r / min.

[0059] The timing key is used to set the working time, and the control panel 9 controls the device to automatically shut down according to the set working time; specifically, the timing key can be in units of 0.5 hours, and the set working duration can be 0.5, 1, or 2 hours. When the timing key switches to a certain duration, the duration indicator light corresponding to this duration shows the green working state.

[0060] In the above embodiment, the working voltages of the ultrasonic atomization sheet, the first fan 31, the second fan 21, and the negative charge output needle can be set to 12V, the working current of the ultrasonic atomization sheet is 1A, the working current of the second fan is 0.15A, the working current of the first fan is 0.65A, and the working current of the negative charge output needle is 0.02A, so as to simplify the circuit design of the control panel.

[0061] In this embodiment, a water level sensor 242 is further provided at the bottom of the atomization water tank. The water level sensor 242 is electrically connected to the control panel 9. When the water level sensor 242 detects that the water level in the atomization water tank is lower than the alarm threshold, it sends a water level alarm signal to the control panel 9. The control panel 9 controls the first fan 31, the second fan 21 and the negative charge output needle to stop working in response to the water level alarm signal, and controls the power indicator light to flash red.

[0062] Specifically, the above device may further include a base 6, an upper housing 7 and a panel 8. The control panel 9 is located on the front of the panel 8 for the user to operate the power button, mode switch button and timing button. The mounting plate 5 is fixedly installed on the base 6. The upper housing 7 is installed on one side above the mounting plate 5, and the water storage tank 1 is installed on the other side above the mounting plate 5. The panel 8 is installed in front of the base 6, the upper housing 7 and the water storage tank 1. The structure is regular and simple, and it is convenient to move. Among them, the water tank lower shell 24 and the water supply chamber 4 are located in the base 6, the water tank upper shell 23, the negative charge output device 3, the first fan 31 and the second fan 21 are all located in the upper housing 7. An air outlet is provided on the upper housing 7, and the panel 8 is also provided with an opening area for the outlets of the conical tube and the fog outlet tube 25 to extend out.

[0063] Other components and operations of the device for water-excited negative oxygen ions according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0065] In the description of this specification, the descriptions referring to terms such as "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention.

[0066] In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples without interference or contradiction.

Claims

1. A device for exciting negative oxygen ions with water, characterized in that: The device comprises a water storage tank, an atomizing water tank, a negative charge output device and a circuit control system; The negative charge output device is installed above the atomizing water tank, the front end of the negative charge output device is a conical tube, the outlet of the conical tube is provided with a negative charge output needle, and the rear end of the negative charge output device is provided with a first fan; The water storage tank is connected to the lower part of the atomizing water tank, an ultrasonic ceramic transducer is provided at the bottom of the atomizing water tank, and at least one mist outlet pipe is provided at the top of the atomizing water tank, and the outlet of the mist outlet pipe is close to the outlet of the conical tube; An air inlet cavity is provided on the lower side of the atomizing water tank, an air inlet is provided on the upper part of the air inlet cavity, the air inlet is located in the atomizing water tank and faces the inner side wall of the atomizing water tank, and a second fan is provided at the bottom of the air inlet cavity; A water supply chamber is provided below the water storage tank, and a solenoid valve is provided in the water supply chamber. The water supply chamber is communicated with the water outlet at the bottom of the water storage tank through the solenoid valve, and the water supply chamber is communicated with the lower side of the atomizing water tank; The atomizing water tank comprises an upper water tank shell and a lower water tank shell which are detachably connected together, and the air inlet chamber is arranged on one side of the lower water tank shell and is integrally formed with the lower water tank shell; The water tank upper shell comprises an annular inner wall and an outer wall, the height of the outer wall is lower than the height of the inner wall, and the lower outer side of the outer wall is matched and connected with the top inner side of the water tank lower shell; the lower end of the inner wall extends into the cavity of the water tank lower shell, the inner wall is provided with an arc-shaped concave on one side facing the air inlet cavity to fit the air inlet cavity, and an air outlet is also provided at the lower end of the arc-shaped concave, and the air inlet is located between the inner wall and the outer wall and faces the direction of the outer wall; The ultrasonic ceramic transducer is arranged at the bottom of the water tank lower shell, and a through hole communicating with the water supply cavity is arranged at the bottom of the side wall of the water tank lower shell.

2. The device for generating negative oxygen ions from water according to claim 1, characterized in that: The water storage tank and the atomizing water tank are both made of PP plastic material. During injection molding, the water storage tank and the atomizing water tank use PP plastic material added with mixed rare earth ionization material so that the water storage tank and the atomizing water tank have ionization function; the mixed rare earth ionization material includes mixed rare earth and tourmaline powder.

3. The device for generating negative oxygen ions from water according to claim 2, characterized in that: The PP plastic material is composed of the following components in weight percentage: 75-85% polypropylene, 10-15% filler, 05-1.5% stabilizer, 2-4% white mineral oil, and 1-3% colorant; The mixed rare earth ionization material is composed of the following components in weight percentage: 3-5% antistatic agent, 2-5% tourmaline powder, and 0.5-1.5% mixed rare earth.

4. The device for exciting negative oxygen ions with water according to claim 3, characterized in that: The preparation method of the PP plastic material added with mixed rare earth ionization material comprises: after mixing polypropylene, filler and stabilizer, first adding white mineral oil, stirring the mixture for 15 to 20 minutes, then adding antistatic agent, tourmaline powder and mixed rare earth in sequence, and continuing stirring for 30 minutes.

5. A device for exciting negative oxygen ions with water according to any one of claims 1 to 4, characterized in that: A downward conical boss is also provided at the axis center of the upper shell of the water tank, and the height of the conical boss is lower than the height of the outer wall; the inlet of the mist outlet pipe is located between the conical boss and the inner wall.

6. The device for generating negative oxygen ions from water according to claim 5, characterized in that: The inner side of the inner wall is provided with a plurality of convex strips distributed along the circumferential direction.

7. The device for generating negative oxygen ions from water according to claim 1, characterized in that: The mist outlet pipe is arranged at the top of the atomizing water tank along an inclined angle, and the inclined angle is 30 to 60 degrees.

8. The device for generating negative oxygen ions from water according to claim 7, characterized in that: The inlet diameter of the mist outlet pipe is larger than the outlet diameter; the number of the mist outlet pipes is 2, and the outlets of the 2 mist outlet pipes are respectively located on both sides of the outlet of the conical pipe; the front-to-back distance between the outlet of the mist outlet pipe and the outlet of the conical pipe is 5 to 15 mm.

9. The device for generating negative oxygen ions from water according to claim 8, characterized in that: The inclination angle is 45 degrees; the front-to-back distance between the outlet of the mist outlet pipe and the outlet of the conical tube is 10 mm.

10. The device for exciting negative oxygen ions with water according to claim 9, characterized in that: The working frequency of the ultrasonic ceramic transducer is 3 MHz.

11. The device for exciting negative oxygen ions with water according to claim 1, characterized in that: The circuit control system includes a control panel, and the control panel is electrically connected to the first fan, the second fan, the ultrasonic ceramic transducer, and the negative charge output needle respectively; The control panel is provided with a power button, a mode switch button, a timing button and a plurality of indicator lights, wherein the plurality of indicator lights include indicator lights corresponding to the power button, the mode switch button and the timing button respectively; When the control panel receives the shutdown signal sent by the power button, the ultrasonic ceramic transducer and the negative charge output needle are first turned off, and then the first fan and the second fan are turned off after a preset delay; The mode switching key is used to generate a mode switching signal, and the control panel controls the device to switch between the first mode and the second mode according to the mode switching signal; The timing key is used to set the working time, and the control panel controls the device to automatically shut down according to the set working time.

12. The device for generating negative oxygen ions from water according to claim 11, characterized in that: A water level sensor is also provided at the bottom of the atomizing water tank, and the water level sensor is electrically connected to the control panel; When the water level sensor detects that the water level in the atomizing water tank is lower than the alarm threshold, a water level alarm signal is sent to the control panel; In response to the water level alarm signal, the control panel controls the first fan, the second fan, the ultrasonic ceramic transducer, and the negative charge output needle to stop working, and controls the indicator light corresponding to the power button to flash red.

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