Water anion air conditioner and water anion generation module based on water mist charging

Abstract

The invention discloses a water negative ion air conditioner and a water negative ion generation module based on water mist charging, the water negative ion air conditioner comprises an air conditioner main body and the water negative ion generation module comprising a negative ion water mist excitation device and a charging device, and the negative ion water mist excitation device comprises a liquid storage cavity and a negative ion water mist exciter; wherein the negative ion water mist exciter comprises a mesh excitation sheet which is driven to vibrate, and the mesh excitation sheet vibrates and rubs liquid from the liquid storage cavity to generate negative ion water mist based on a triboelectric mode; and the charging device is used for charging the anion water mist generated by the anion water mist excitation device so as to generate water anions with high-concentration anions.

Description

Technical Field

[0001] The invention relates to the technical field of negative ions, and in particular to a water negative ion air conditioner and a module thereof for generating water negative ions by discharging to atomized droplets. Background Art

[0002] As people pay more attention to environmental air and healthy breathing, negative ion products have begun to appear on the market. Traditional negative ion generating equipment generally generates negative ions through corona discharge. Specifically, electrons are generated during the corona process. The oxygen molecules O2 in the air are more electrophilic than CO2, N2 and other molecules. Therefore, oxygen molecules will preferentially obtain electrons to form negative air ions. Because oxygen molecules account for a large proportion of negative air ions, they are often called negative oxygen ions in the air.

[0003] The negative oxygen ions in the air generated by high-voltage static electricity are increased to several thousand volts through the transformer step-up circuit, and the electrons are released into the air through the tip. This technical feature can generate a large number of electrons on the one hand. When a large number of electrons are generated, the electrons begin to have no carriers. They will look for carriers at the fastest speed. In addition to combining with oxygen molecules, they will combine with the surface of metals, insulating material shells, and flow to the earth at the fastest speed, resulting in the limited migration distance of the negative oxygen ions in the air generated by traditional negative ion generating equipment, so that the radiation area of ​​the negative oxygen ions generated in the environment is small. And in dry conditions, these electrons attach to the surroundings of the equipment to form static electricity. The large amount of static electricity near the equipment causes the surface of the environment to turn black. At the same time, ionized air will cause secondary pollution, such as the production of ozone by ionization of oxygen in the air.

[0004] Air conditioners are devices that regulate and control parameters such as the temperature, humidity, and flow rate of ambient air. However, existing air conditioners do not yet have the function of generating negative ions. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a water negative ion generating module based on water mist charging, which comprises:

[0006] A negative ion mist excitation device, comprising a liquid storage cavity and a negative ion mist exciter, wherein the negative ion mist exciter comprises a mesh excitation sheet that is driven to vibrate, and generates negative ion mist based on friction charging by vibrating and rubbing the liquid in the liquid storage cavity; and

[0007] A charging device is used to charge the negative ion water mist generated by the negative ion water mist excitation device to generate water negative ions.

[0008] Preferably, the negative ion water mist exciter atomizes the liquid in the liquid storage chamber and generates the negative ion water mist with unsaturated charge, and the charging device charges the negative ion water mist so that the negative ion water mist continues to tend towards charge saturation to generate the water negative ions.

[0009] Preferably, the mesh excitation sheet of the negative ion water mist exciter includes an excitation layer and a piezoelectric layer, the micropore diameter of the excitation layer is less than 10 microns, preferably less than 5 microns, and the excitation layer includes a material that loses electric charge more easily than water, so that the water mist is charged after friction with liquid droplets to produce the negative ion water mist.

[0010] Preferably, the negative ion water mist exciter includes an atomization control circuit, and the mesh excitation sheet is loaded with a voltage with a frequency of 3K-5MHZ and a peak value of 60-90V through the atomization control circuit.

[0011] Preferably, the charging device includes a charging needle for charging the water mist generated by the negative ion water mist excitation device, and the working voltage of the charging needle is above -4kv.

[0012] Preferably, when the working voltage of the charging needle is between -4kv and -6kv, the distance between the position of the charging needle and the center position of the adjacent negative ion water mist exciter is greater than 10mm; when the working voltage of the charging needle is between -6kv and -8kv, the distance between the position of the charging needle and the center position of the adjacent negative ion water mist exciter is greater than 15mm; when the working voltage of the charging needle is between -8kv and -11kv, the distance between the position of the charging needle and the center position of the adjacent negative ion water mist exciter is greater than 20mm; when the working voltage of the charging needle is between -4kv and -11kv, the distance between the position of the charging needle and the center position of the adjacent negative ion water mist exciter is between 20mm and 30mm.

[0013] Preferably, the negative ion water mist excitation device includes a plurality of columns of negative ion water mist exciters arranged at intervals, each column of negative ion water mist exciters includes one or more negative ion water mist exciters, and one or more charging needles are arranged between two adjacent columns of negative ion water mist exciters.

[0014] Preferably, the negative ion water mist excitation device includes a plurality of negative ion water mist exciters arranged around one of the charging needles, and the distances between the plurality of negative ion water mist exciters and the charging needle are equal.

[0015] Preferably, the water mist charging-based water negative ion generating module also includes an airflow propulsion device, which includes a propulsion fan and a filter, wherein under the action of the propulsion fan, the air is filtered through the filter and then blown toward the negative ion water mist exciter of the negative ion water mist excitation device and the charging needle of the charging device.

[0016] Preferably, the charging device includes an air guide cavity, and the charging needle is installed at the open end of the air guide cavity, so that the propulsion airflow generated by the propulsion fan reaches the charging needle through the air guide cavity and is ionized.

[0017] Preferably, the negative ion water mist exciter further comprises a water-absorbing elastomer, the liquid in the liquid storage chamber is supplied to the water-absorbing elastomer, and the mesh excitation sheet is driven to impact the water-absorbing elastomer to rub the liquid droplets to generate the negative ion water mist.

[0018] Preferably, the negative ion water mist exciter also includes a shell part, and the water-absorbing elastomer is a cotton swab, wherein the shell part has a connected receiving groove and a guide channel, wherein the cotton swab is filled in the receiving groove, and wherein liquid reaches the cotton swab in the receiving groove from the liquid storage cavity through the guide channel, so as to be impacted and rubbed by the mesh excitation sheet to generate negative water ions.

[0019] Preferably, a buffer channel having an inner diameter smaller than that of the accommodating groove is formed between the guide channel and the accommodating groove.

[0020] The present invention also provides a water negative ion air conditioner, which comprises an air conditioner main body and the water negative ion generating module.

[0021] The present invention also provides a method for generating water negative ions based on water mist charging, which comprises the steps of:

[0022] (a) generating negative ion mist by vibrating and rubbing the liquid in the liquid storage chamber through the driven mesh excitation sheet; and

[0023] (b) The negative ion water mist is charged by a charging needle so that the negative ion water mist tends to be saturated with charge to generate negative water ions.

[0024] The beneficial effects of the present invention are:

[0025] (1) Negative ion water mist is generated by the negative ion water mist exciting device and the negative ion water mist is charged by the charging device so that the negative ion water mist is saturated with electric charge to generate water negative ions that are beneficial to human health and purify the air.

[0026] (2) The mesh excitation sheet of the negative ion water mist excitation device charges the atomized droplets based on friction charging, so that the negative charge generated by the charging device is more easily adsorbed on the negative ion water mist, thereby making the concentration of negative charges adsorbed by water ions higher and more easily saturated with negative charges. In other words, the negative ion water mist excitation device of the present invention not only atomizes the droplets, but also makes the atomized water mist itself carry negative ions, thereby forming negative ion water mist. In this way, negative ion water molecules are more likely to adsorb the negative charges supplemented by the charging device, so that compared with the charge of the atomized but uncharged droplets, the already charged negative ion water mist of the present invention is more likely to be supplemented with charges and charged to produce water negative ions with a higher negative ion concentration.

[0027] (3) The negative ions generated by the charging device when it is working are promptly absorbed by the water mist, so compared with the generation of air negative ions by traditional high-voltage ionization, the water negative ion generation module of the present invention avoids the generation of static electricity and ozone.

[0028] (4) The negative ion generating device generates a variety of water negative ions by friction charging and water mist charging, such as water negative ions containing O2- negative molecular clusters [O2-(H2O)n], water negative ions containing H+ negative water molecular clusters [H302-(H2O)n], water negative ions containing HO- negative water molecular clusters OH-(H2O)n, and water negative ions containing negative water molecules -(H2O)n, thereby making the generated water negative ions more beneficial to the recuperation and health care of the human body.

[0029] (5) The water negative ions generated by the negative ion generating device diffuse over a long distance in the environment under the action of the airflow pushing device, thereby being able to play a role in health care for the human body and purifying the air over a large range.

[0030] (6) The water negative ion air conditioner can release water negative ions into the environment while adjusting and controlling the temperature, humidity, flow rate and other parameters in the environment, thereby purifying the ambient air and playing a medical and health-preserving role for the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic block diagram of the water negative ion air conditioner according to the above embodiment of the present invention.

[0032] Figure 2 It is a three-dimensional schematic diagram of a water negative ion air conditioner according to an embodiment of the present invention.

[0033] Figure 3 It is a schematic diagram illustrating the structural relationship between the negative ion water mist generating device and the charging device of the water negative ion generating module of the above embodiment of the present invention.

[0034] Figure 4 It is a cross-sectional view illustrating the structure of the negative ion water mist generating device of the water negative ion generating module according to the above embodiment of the present invention.

[0035] Figure 5 It is a schematic diagram of the enlarged structure of the mesh excitation sheet of the negative ion water mist generating device of the water negative ion generating module of the above embodiment of the present invention.

[0036] Figure 6 This is a graph showing the experimental results of using the water negative ion generation module of the present invention for sterilization.

[0037] Figure 7 This is a chart of experimental results of using the water negative ion generating module of the present invention to eliminate the new coronavirus. DETAILED DESCRIPTION

[0038] The terms and words used in the following description are not limited to the literal meanings, but are used only by the inventor to enable a clear and consistent understanding of the present application. Therefore, it is obvious to those skilled in the art that the following description of various embodiments of the present application is provided for the purpose of illustration only and not for the purpose of limiting the present application as defined by the attached claims and their equivalents.

[0039] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0040] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0041] like Figures 1 to 5The figure shows a water negative ion air conditioner 1000 and a water negative ion generating module 100 thereof according to an embodiment of the present invention. The water negative ion generating module 100 includes a negative ion water mist exciting device 10, a charging device 20 and an airflow driving device 30, wherein the negative ion water mist exciting device 10, the charging device 20 and the airflow driving device 30 can be assembled in a box to form a water negative ion generating machine, the negative ion water mist exciting device 10 is used to generate water mist, the high voltage charging device 30 charges the water mist generated by the negative ion water mist exciting device 10 to generate water negative ions, and the airflow driving device 30 blows the water negative ions to the environment outside the box to increase the concentration of negative ions in the environment, thereby purifying the air and benefiting the health care of the human body. It can be understood that the water negative ion generating module can also be used alone, or installed and integrated in other air purification equipment such as air conditioners, air purifiers, vehicle-mounted air purifiers, fresh air systems, etc., so as to provide water negative ions to the environment while providing purified air.

[0042] The water negative ion air conditioner 1000 includes an air conditioner main body 100 and the water negative ion exciting device 100, and the water negative ion exciting device 100 is installed on the air conditioner main body 1001 to increase the function of providing water negative ions to the water negative ion air conditioner 1000. The air conditioner main body 1001 has the structure of a common air conditioner, which may include structures such as a box, a refrigeration system and / or a heating system, an air duct system, a humidification system, an electrical system, etc., so that the air conditioner can operate normally. It is understandable that the air conditioner main body 1001 can be a central air conditioner, an indoor wall-mounted air conditioner, a vertical air conditioner, a car air conditioner, etc.

[0043] More specifically, the negative ion water mist excitation device 10 includes a liquid storage chamber 11 and one or more negative ion water mist exciters 12, wherein the liquid storage chamber 11 is used to store liquid for the negative ion water mist exciter 12 to generate water mist, and the liquid stored in the liquid storage chamber 11 can be various suitable liquid water, such as drinking pure water, drinking conductive negative ion liquid and drinking mineral water.

[0044] exist Figures 1 to 5In the illustrated embodiment, the negative ion water mist exciter 12 includes a mesh excitation sheet 121 having a mesh area in the center. The mesh excitation sheet 121 is driven to vibrate at a high frequency to vibrate the liquid from the liquid storage chamber 11 at a high frequency to produce atomized droplets, which are further charged by the charging device 30 to produce water negative ions. The mesh excitation sheet 121 of the negative ion water mist exciter 12 is electrically connected to an atomization control circuit 13, and the high-frequency vibration of the mesh excitation sheet 121 is controlled by the atomization control circuit 13 under the condition that a power supply 14 provides power supply. For example, the mesh excitation sheet 121 is loaded with a voltage with a frequency of 3K-5MHZ and a peak value of 60-90V through the atomization control circuit 13.

[0045] More specifically, if Figure 5 As shown, the mesh excitation sheet 121 includes an excitation layer 1211 and a piezoelectric layer 1212 attached to and electrically connected to the excitation layer 1211, wherein the piezoelectric layer 1212 and the excitation layer 1211 are electrically connected to the atomization control circuit 13 and are supplied with electrical energy by the power supply 14. More specifically, the excitation layer 1211 has a central area and an outer ring area, wherein the piezoelectric layer 1212 is a piezoelectric ceramic and is annular, which is attached to the outer ring area of ​​the excitation layer 1211, and the central area of ​​the excitation layer 1211 has a plurality of micropores 1213 to form a mesh structure.

[0046] In this embodiment, the negative ion water mist exciter 12 also includes a water-absorbing elastic body 1222, and the excitation layer 1211 is used to vibrate and strike an action end 1221 of the corresponding water-absorbing elastic body 122 to generate water negative ions. More specifically, when a voltage of a predetermined frequency and peak value is applied to the piezoelectric layer 1212 and the excitation layer 1211, the excitation layer 1211 will generate high-frequency vibrations and strike the water-absorbing elastic body 122, so that the water infiltrated into the water-absorbing elastic body 122 resonates to generate tiny droplets, and the tiny droplets are rubbed with the excitation layer 1211 at a high frequency between the excitation layer 1211 and the water-absorbing elastic body 122 while being generated, so that the tiny droplets are further negatively charged to form water negative ions and diffuse from the micropores 1213 to the environment. The airflow driving device 30 blows out wind and carries the water negative ions released from the micropores 1213 to diffuse to the external environment to increase the migration distance of the water negative ions.

[0047] Accordingly, when the excitation layer 1211 is driven by the piezoelectric layer 1212 to vibrate back and forth, it simultaneously completes two processes to generate water negative ions, namely, vaporizing the liquid that penetrates into the action end 1221 of the water-absorbing elastomer 122 and charging the vaporized liquid to efficiently generate water negative ions. In the present invention, when the excitation layer 1211 vibrates at a high frequency, the water-absorbing elastomer 122 absorbs water through its water-absorbing end 1222, and the water molecules that penetrate into the action end 1221 of the water-absorbing elastomer 122 are driven to resonate at the same frequency and vaporize to generate tiny droplets. At the same time, the generated tiny droplets rub against the high-frequency vibrating excitation layer 1211, so that the excitation layer 1211 loses its charge and the tiny droplets gain charge. The vaporized tiny droplets that gain charge form water anions such as negative water molecule groups containing H+ [H302-(H2O)n], negative water molecule groups containing HO- OH-(H2O)n, negative water molecules containing -(H2O)n, etc.

[0048] In this embodiment of the present invention, the water-absorbing elastomer 122 is made of a flexible material that allows water to penetrate, such as a cotton swab, which has water-absorbing properties and a certain elasticity to withstand the impact of the excitation layer 1211, and the excitation layer 1211 does not directly impact the liquid but vibrates the droplets that penetrate into the water-absorbing elastomer 122, so that these droplets are efficiently and quickly converted into tiny droplets, and the water-absorbing elastomer 122 can reduce the noise generated during vibration and impact.

[0049] That is to say, in the present invention, the negative ion water mist exciter 12 preferably also generates negative ions, so that the water negative ion generating device of the present invention generates water negative ion water mist of relatively high concentration. The mesh area of ​​the mesh excitation sheet 121 of the negative ion water mist exciter 12 is made of a material that loses charge more easily than the liquid and the pore size of its micropores is less than 10 microns, so that the diameter of the generated water mist droplets is less than 10 microns, and preferably the micropore size of the mesh excitation sheet 121 is less than 5 microns, so that the mesh excitation sheet 121 vibrates at high frequency to generate water mist, while the droplets and the mesh excitation sheet 121 are rubbed at high frequency to generate water negative ions such as water negative ions containing H+ negative water molecules [H302-(H2O)n], water negative ions containing HO- negative water molecules OH-(H2O)n, and water negative ions containing negative water molecules -(H2O)n, so that the generated water negative ions are more conducive to the health care of the human body. The discharge device 20 ionizes to generate negative ions such as O2-negative molecules, which are absorbed by the negative ion mist generated by the negative ion mist exciter 12 to generate O2-containing negative molecule clusters [O2-(H2O)n].

[0050] It is worth mentioning that the mesh excitation sheet 121 of the negative ion water mist exciter 12 of the present invention charges the atomized droplets based on friction charging, so that the negative charge generated by the charging device 20 is more easily adsorbed on the negative ion water mist, so that the concentration of negative charges adsorbed by water ions is higher and it is easier to saturate the negative charge. In other words, the negative ion water mist excitation device 10 of the present invention not only atomizes the droplets, but also makes the atomized water mist itself carry negative ions, thereby forming negative ion water mist. In this way, negative ion water molecules are more likely to adsorb the negative charges supplemented by the charging device 20, so that compared with only the atomized droplets being charged, the present invention is more likely to be charged and produce water negative ions with a higher negative ion concentration.

[0051] In this embodiment, the negative ion water mist excitation device 10 includes a plurality of negative ion water mist exciters 12, each of which includes a mesh excitation sheet 121 and a water-absorbing elastic body 122, wherein the water-absorbing elastic body 122 is used to absorb water and control the amount of water vibrated and hit by the mesh atomization sheet 12, and to provide a buffering effect for the vibration of the mesh excitation sheet 121, thereby reducing the noise generated during vibration and impact. Accordingly, the mesh excitation sheet 121 is used to vibrate and impact the corresponding action end 121 of the cotton swab 122 to generate water negative ions. More specifically, when a voltage of a predetermined frequency such as 3kHZ-5MHZ and a predetermined peak value such as 60-90V is applied to the mesh excitation plate 121, the mesh excitation plate 121 will generate high-frequency vibrations and hit the cotton swab 122, thereby causing the water that has penetrated into the cotton swab 122 to resonate and generate tiny droplets, and while the tiny droplets are generated, they are rubbed with high frequency against the mesh excitation plate 121 between the mesh excitation plate 121 and the cotton swab 122, so that the tiny droplets are further negatively charged to form water negative ions and diffuse from the mesh area in the center of the mesh excitation plate 121 into the environment.

[0052] The negative ion water mist exciter 12 also includes a housing portion 123, the housing portion 123 has one or more receiving grooves 1231, one or more buffer channels 1232 and a guide channel 1233, the guide channel 1233 is connected to the liquid storage cavity 20, wherein each of the receiving grooves 1231 is connected to the corresponding guide channel 1233, and the receiving groove 1231 extends transversely to the corresponding guide channel 1233, wherein each of the water-absorbing elastic bodies 122 is filled into the receiving groove 1231 to be consistent with the extension direction of the receiving groove 1231. For example, in this embodiment, each of the guide channels 1233 is arranged in a vertical direction, and each of the receiving grooves 1231 and the corresponding water-absorbing elastic body 122 are arranged in a horizontal direction.

[0053] In this embodiment, the liquid naturally enters each of the guide channels 1233 from the liquid storage chamber 11 due to gravity and further flows into the buffer channel 133 to be buffered in the buffer channel 133, so that an appropriate amount of liquid reaches the water-absorbing elastomer 122 for impact by the mesh excitation sheet 121 to efficiently generate water negative ions.

[0054] It is understandable that the water-absorbing elastic body 122 is filled into the receiving groove 1231 and is held in the receiving groove 1231 by friction, and will not be displaced significantly and detached under the impact of the mesh excitation sheet 121. In this embodiment, the diameter of the receiving groove 1231 is larger, and the buffer channel 133 has a smaller diameter, so that after the cotton swab 122 is filled into the receiving groove 1231, its size is also larger relative to the buffer channel 1232, so that it is held in the receiving groove 1231 without being displaced significantly, that is, the inner wall of the buffer channel 133 is formed to block the further movement of the cotton swab 122.

[0055] When the negative ion water mist excitation device 10 includes a plurality of the shell parts 123, the shell parts 123 can be arranged at intervals to form a gap between two adjacent shell parts 123, wherein the wind generated by the push fan 31 passes through the gap to reach the negative ion water mist excitation device 10 and the charging needle 21 of the charging device 20 and carries the negative water ions forward to migrate and diffuse toward the front of the negative water ion generating module. In this embodiment, the shell part 123 is annular and has a through hole 124 in the middle to correspond to the charging device 20.

[0056] Each of the negative ion water mist exciters 12 also includes a guide cavity 125, the inner end of which presses against the mesh excitation plate 121 to further play a role in sealing the installation and the mesh excitation plate 121, and the guide cavity 125 has a conical guide cavity 1251 to facilitate guiding the water negative ion mist to radiate out of the mesh excitation plate 121.

[0057] In the present invention, the liquid stored in the liquid storage cavity 20 is used to generate water anions, which can be various suitable liquid waters, such as drinking pure water, drinking conductive anion liquid and drinking mineral water, etc., and its conductivity is relatively weak, while the conductivity of the excitation layer 1211 is relatively strong, so that the excitation layer 1211 is more likely to lose charge, so that the vaporized tiny droplets are more likely to be charged and form water anions. The liquid storage cavity 11 can be further provided with equipment for filtering and cleaning water, such as ultraviolet lamps, etc.

[0058] In order to make it easier for tiny droplets to carry charges and generate negative water ions, the size of the micropores 1213 arranged in the excitation layer 1211 is as small as possible and the number is as large as possible, so that the tiny droplets vibrate faster, and the friction between the excitation layer 1211 with a mesh structure and the tiny droplets is greater, so that the tiny droplets are more likely to carry negative charges.

[0059] In some specific examples, the excitation layer 1211 has a diameter of 10-20 mm, a central region with micropores has a diameter of 1-10 mm, the number of micropores 1213 is 500-5000, and the size of the micropores 1213 is extremely small. In the present invention, the size of the micropores 1213 is less than 10 μm, and preferably the opening size is less than 5 μm. This is because the amount of water anions produced by tiny droplets is positively correlated with the negative charge density, and the negative charge density depends on the contact time and contact area with the excitation layer 1211 and the charge density of the excitation layer 1211. Therefore, the smaller the size of the tiny droplets, the higher the average charge density, and the higher the amount of water anions produced. In other words, the smaller the diameter of the droplets, the easier it is to produce water anions, and the higher the concentration of water anions.

[0060] The micropores 1213 with extremely small aperture sizes in the present invention are used to control the size of the tiny droplets generated by the water negative ion exciter 12, so that the tiny droplets are charged and generate water negative ions during the high-frequency vibration friction between the tiny droplets and the excitation layer 1211 with a mesh structure.

[0061] In the present invention, the excitation layer 1211 may be a metal alloy such as a stainless steel sheet, which is punched to form the micropores 1213, thereby forming a mesh structure for contacting with water to vibrate and rub the water. For example, the excitation layer 1211 is a 316L stainless steel sheet, which is more likely to lose charge and be positively charged relative to the droplets. Of course, the excitation layer 1211 may also be a base inner layer including a stainless steel sheet and a material such as polyimide, aluminum or polyamide coated or attached to the outside of the base inner layer, which is more likely to lose charge and be positively charged relative to the droplets.

[0062] It is worth mentioning that in order to ensure that the water in contact with the excitation layer 1211 can resonate to generate tiny droplets and to enable the tiny droplets to fully rub against the excitation layer 1211 at high frequency, the voltage loaded on the piezoelectric layer 1212 needs to be able to drive the excitation layer 1211 to vibrate at high frequency. Experimental data found that when the frequency loaded on the piezoelectric layer 1212 is 110±KHZ and the peak voltage is 60-90V, the excitation layer 1211 can vibrate at high frequency and generate high-concentration water anions, and the migration distance of the water anions is relatively long.

[0063] The charging device 20 includes one or more charging needles 21 and a boost circuit 22. The boost circuit 22 raises the voltage to above -4kV. The charging needle 21 is electrically connected to the boost circuit 22 to charge the water mist generated by the negative ion water mist exciter 12, that is, the electrons generated by the charging needle 21 are promptly absorbed by the water mist generated by the negative ion water mist exciter 12, thereby generating negative ion water mist rich in negative ions. The charging device 20 can share the power supply 14 with the negative ion water mist exciter 12, or can be configured with a power supply separately.

[0064] In the present invention, the mesh excitation sheet 121 is driven by a voltage of a predetermined frequency and peak value to vibrate at a high frequency, and its center position 1210 is the center position where liquid is converted into droplets, and a predetermined distance D needs to be maintained between it and the charging needle 21, so as to prevent the water mist droplets generated by the mesh excitation sheet 121 from being attached to the charging needle 21 due to the distance being too close, and also to prevent an arc from occurring between the charging needle 21 and the mesh excitation sheet 121, causing the charging needle 21 to discharge high voltage to the entire water negative ion generating module. The charging needle 21 is made of a corrosion-resistant material, preferably 316L stainless steel.

[0065] In the present invention, according to experimental data, it is found that, preferably, the distance D between the position of the charging needle 21 and the center position 1210 of the negative ion water mist excitation device 10 is as follows:

[0066] When the working voltage of the charging needle 21 is between -4kv and -6kv, the distance D between the position of the charging needle 21 and the center position 1210 of the negative ion water mist exciter 12 of the negative ion water mist excitation device 10 is greater than 10mm.

[0067] When the working voltage of the charging needle 21 is between -6kv and -8kv, the distance D between the position of the charging needle 21 and the center position 1210 of the negative ion water mist exciter 12 of the negative ion water mist excitation device 10 is greater than 15mm.

[0068] When the working voltage of the charging needle 21 is between -8kv and -11kv, the distance D between the position of the charging needle 21 and the center position 1210 of the negative ion water mist exciter 12 of the negative ion water mist excitation device 10 is greater than 20mm.

[0069] Preferably, for example in a specific example, the distance D between the position of the charging needle 21 and the center position 1210 of the negative ion water mist excitation device 10 can be selected to be 30 mm, and the voltage of the charging needle 21 is preferably -10 kV.

[0070] exist Figure 3 In the example shown, the water negative ion generating module includes a charging needle 21 and a plurality of mesh excitation sheets 121 arranged in a circular direction, for example, six mesh excitation sheets 121 are arranged in a circumferential direction around the charging needle 21, so that the charging needle 21 charges the water mist generated by the six mesh excitation sheets 121 around it to form water negative ion mist. And preferably, as Figure 4 As shown in , the distance D between the center position 1210 of each mesh excitation sheet 121 and the center charging needle 121 is equal.

[0071] In this example, the lines connecting the center positions 1210 of the six mesh excitation sheets 121 can form a circle, that is, the six mesh excitation sheets 121 are arranged on a circle. In other variant embodiments, the lines connecting the center positions 1210 of the multiple mesh excitation sheets 121 can form other shapes, such as triangles, pentagons, hexagons, octagons, etc., and the polygonal shape can be a regular polygon or an irregular polygon, and the multiple mesh excitation sheets 121 surround one of the charging needles 12 to capture and absorb the electrons ionized by the charging needle 12.

[0072] In addition, Figure 3 In the ring-shaped mesh excitation sheets 121 shown, these mesh excitation sheets 121 can work together simultaneously to generate water mist, or can work alternately to generate water mist.

[0073] It can be understood that in another possible variant embodiment, the water negative ion generating module includes a plurality of columns of mesh excitation plates 121 arranged at intervals from each other, each column of the mesh excitation plates 121 includes one or more mesh excitation plates 121, for example, each column of the mesh excitation plates 121 includes two mesh excitation plates 121, wherein the water negative ion generating module includes two charging needles 21, and each charging needle 21 is located between two adjacent columns of the mesh excitation plates 121.

[0074] Each charging needle 21 is located at the center of the plurality of mesh excitation sheets 121, and the distance D between each charging needle 21 and the center 1210 of the plurality of mesh excitation sheets 121 is equal, for example, 30 mm. In this way, when each charging needle 21 ionizes and generates electrons, the plurality of mesh excitation sheets 121 located around it generate water mist and absorb the electrons generated by the ionization of the charging needle 21 located at the center thereof, thereby forming water negative ion mist.

[0075] In addition, the needle tip of the charging needle 21 may be coplanar with the mesh excitation sheet 121 or may not be coplanar. The charging needle 21 may be located near the front or rear of the mesh excitation sheet 121 .

[0076] It is understandable that these mesh excitation sheets 121 can be driven to work at the same time, or can work periodically in batches. Preferably, when these mesh excitation sheets 121 are periodically activated to work, at least one mesh excitation sheet 121 around each charging needle 21 is in a working state and generates water mist in the same time period to absorb the electrons ionized by the corresponding charging needle 21.

[0077] It can be understood that the distance D between the center position 1210 of the multiple mesh excitation plates 121 around each charging needle 21 is equal. In another variant implementation, the center position 1210 of these mesh excitation plates 121 may also be different from the position of the corresponding charging needle 21, but the distance D is greater than 10 mm.

[0078] Those skilled in the art should understand that the arrangement of the charging needle 21 and the mesh excitation plate 121 of the negative ion water mist exciter 12 can be changed according to design requirements, as long as the distance D between each charging needle 21 and the center position 1210 of the corresponding mesh excitation plate 121 meets the above conditions.

[0079] The airflow driving device 30 includes a driving fan 31 and one or more filters 32. The driving fan 31 rotates to generate airflow. The fan preferably adopts a turbine fan. The filter 32 is used to filter air, so that relatively clean air is sent to the negative ion water mist excitation device 10 and the charging needle 21 of the charging device 20 by the driving fan 31. More specifically, the box body also has an air inlet, wherein under the action of the driving fan 31, air enters the box body from the air inlet of the box body and is filtered by the filter 32, and then blows to the negative ion water mist excitation device 10 and the charging needle 21 of the charging device 20, so that the water negative ion mist generated by the synergistic action of the negative ion water mist excitation device 10 and the charging device 20 is blown to the environment outside the box body, so as to increase the migration distance of the water negative ion mist.

[0080] In this embodiment, the airflow driving device 30 may include a three-layer filter 32, which, in order of the air flow path, are a primary filter, an arresting electrode purification filter and a high-efficiency particulate filter (Hepa, High-efficiency particulate arrestance). The primary filter is used to block large particles such as hair and filter dust larger than 5 microns. The arresting electrode purification filter is formed by interwoven fibers. When air flows through the filter, the particles and microorganisms suspended therein are blocked on the surface of the fiber material, thereby being used for sterilization and dust accumulation. The high-efficiency particulate filter is used to remove PM2.5 particles.

[0081] The high-voltage charging device 20 also includes an air guide cavity 23, and the charging needle 21 is installed at an open end 231 of the air guide cavity 23, so that the propulsion airflow generated by the propulsion fan 31 reaches the charging needle 21 through the air guide cavity 23 and is ionized, and the air guide cavity 23 is used to guide the airflow to increase the wind speed at the position of the charging needle 21, so that the water mist generated by the negative ion water mist excitation device 10 is not easy to adhere to the charging needle 21.

[0082] The water negative ion generating module of the present invention can generate high concentration of water negative ions. For example, in a specific example, the voltage with a frequency of 108KHZ±2kHz and a peak value of 70V±10V is loaded on the mesh excitation sheet 121, the wind speed generated by the airflow pushing device 30 is 3m / s, the distance D between the position of the charging needle 21 and the center position 1210 of the negative ion water mist excitation device 10 is 30mm, and when the voltage of the charging needle 21 is -10kv, the negative ions can migrate to 200cm, and the negative ion concentration within the range of 200cm can reach 150,000 to 600,000 / cm3; the negative ions can migrate to 400cm, and the negative ion concentration within the range of 400cm can reach 40,000 to 250,000 / cm3.

[0083] The water negative ion generating module of the present invention generates high concentration of water negative ions which can be used for sterilization. The inspection basis and method refer to the inspection standards of GB / T 18801-201 and GB 21551.3-2010. The entrusting unit is the National Air Purification Product Quality Inspection and Testing Center of Guangzhou Institute of Microbiology Co., Ltd.

[0084] More specifically, the test method for evaluating the sterilization performance of air purifiers is as follows:

[0085] 1. Test equipment

[0086] 1) Bacteria species: Staphylococcus aureus.

[0087] 2) Microbial aerosol generator: TK-33).

[0088] 3) Culture medium: nutrient agar medium.

[0089] 4) Sampler: six-stage sieve air impact sampler.

[0090] 2. Test conditions

[0091] 1) Test chamber volume: 3m3 2) Ambient temperature: (20-25)℃ 3) Ambient humidity: (50-70)%RH.

[0092] 3. Machine operating status

[0093] During the test, the "third gear (super strong mode)" was turned on.

[0094] 4. Test steps

[0095] 1) Take the 4th to 5th generation bacterial slant culture cultured at 37°C for 24 hours, blow and wash repeatedly with 10 mL of nutrient broth to wash off the bacterial moss, filter with sterile filter cotton, and dilute with nutrient broth to a suitable concentration to prepare an aerosolized bacterial suspension.

[0096] 2) Place the experimental equipment into two aerosol chambers at once, close the doors, turn on the high-efficiency filter purification, and adjust the temperature of the two aerosol chambers to (20-25)°C and the humidity to (50-70)% RH.

[0097] 3) Turn on the microbial aerosol generator for spray infection. After completion, continue stirring with the fan for 10 minutes, and then let it stand for 15 minutes.

[0098] 4) The experimental group and the control group were sampled using a six-stage sieve-hole air impact sampler.

[0099] 5) The test group turns on the sample to be tested and samples are collected for 60 minutes, and the control group also collects samples during the corresponding period of time.

[0100] 6) Take 2 portions of unused culture medium from the same batch and culture them simultaneously with the test samples as negative controls.

[0101] 7) The test is repeated 3 times, and the arithmetic mean of the 3 test results is taken as the final test result. 5.5. Calculation formula

[0102] Natural extinction rate N t (%)=(V o- V t) / V o ×100%(V o is the bacterial content of the air before the test in the control group, V t is the bacterial content in the air after the control group test).

[0103] Sterilization rate Kt (%) = V1 × (1-N t )-V2 / [V1×(1-N t )]×100% (V1 is the bacterial content in the air of the test group before the test, and V2 is the bacterial content in the air of the test group after the test).

[0104] like Figure 6 As shown in , the experimental results show that the water negative ion generation module of the present invention generates high-concentration water negative ions with a sterilization rate of 99.92% against Staphylococcus aureus.

[0105] The water negative ion generating module of the present invention generates high concentration of water negative ions which can be used to disinfect, for example, the new coronavirus. The inspection basis and method refer to the inspection standards of T / SAEPI 005-2020 and T / GDAR 0001-2020. The entrusting unit is the National Air Purification Product Quality Inspection and Testing Center of Guangzhou Institute of Microbiology Co., Ltd.

[0106] More specifically, the virus removal test method is as follows.

[0107] 1. Test viruses and host cells

[0108] 1) Strain: Human coronavirus HCoV-229E 2.

[0109] Cells: MRC-5 cells.

[0110] 2. Test conditions

[0111] Temperature: (20-25)°C, relative humidity: (50-70)%, test time: 60 minutes, test volume: 3m 3 , Test position: "Power on"

[0112] 3. Calculation formula

[0113] Natural extinction rate N t (%) = V o -V t / V o ×100(V o is the virus titer before the control group experiment, V t is the virus titer of the control group after the experiment).

[0114] Virus removal rate K t (%) = V1 × (1-N t )-V2 / [V1×(1-N t )]×100 (V1 is the virus titer of the test group before the experiment, and V2 is the virus titer of the test group after the experiment).

[0115] like Figure 7As shown in the chart, the experimental results show that the water negative ion generation module of the present invention produces high-concentration water negative ions with a virus removal rate of 99.99% for human coronavirus HCoV-229E 2.

[0116] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the above-disclosed specific details are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above-mentioned specific details.

[0117] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0118] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0119] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0120] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A water negative ion generating module based on water mist charging, characterized in that: include: A negative ion mist excitation device, comprising a liquid storage cavity and a negative ion mist exciter, wherein the negative ion mist exciter comprises a mesh excitation sheet that is driven to vibrate, and generates negative ion mist based on friction charging by vibrating and rubbing the liquid in the liquid storage cavity; A charging device, the charging device comprising a charging needle, for charging the negative ion water mist generated by the negative ion water mist exciting device to generate water negative ions; as well as An airflow pushing device, wherein the charging needle and the negative ion water mist exciter are both located below the liquid storage cavity, and the airflow generated by the airflow pushing device supplies air to the charging needle and the negative ion water mist exciter, thereby carrying the negative water ions to migrate into the environment.

2. The water negative ion generating module based on water mist charging according to claim 1, characterized in that: The charging needles are arranged in a horizontal direction, and the mesh excitation sheets are arranged in a vertical direction.

3. The water negative ion generating module based on water mist charging according to claim 2, characterized in that: A plurality of mesh excitation sheets are arranged around the charging needle.

4. The water negative ion generating module based on water mist charging according to any one of claims 1 to 3, characterized in that: The mesh excitation sheet includes an excitation layer and a piezoelectric layer. The diameter of the micropores of the excitation layer is less than 10 microns. When the liquid in the liquid storage cavity reaches the mesh excitation sheet, the mesh excitation sheet generates the negative ion water mist that diffuses outward from the micropores of the excitation layer through vibration and friction.

5. The water negative ion generating module based on water mist charging according to any one of claims 1 to 3, characterized in that: The negative ion water mist exciter also includes a shell portion, which has a guide channel arranged in a vertical direction and a receiving groove arranged in a horizontal direction. The liquid in the liquid storage cavity reaches the receiving groove via the guide channel, so as to generate the negative ion water mist that diffuses outward from the micropores of the excitation layer through vibration and friction through the mesh excitation sheet.

6. The water negative ion generating module based on water mist charging according to any one of claims 1 to 3, characterized in that: The negative ion water mist exciter atomizes the liquid in the liquid storage chamber and generates the negative ion water mist with unsaturated charge. The charging device charges the negative ion water mist so that the negative ion water mist continues to tend towards charge saturation to produce the water negative ions. The excitation layer includes a material that loses charge more easily than water, so that the water mist is charged after friction with the droplets to produce the negative ion water mist.

7. The water negative ion generating module based on water mist charging according to any one of claims 1 to 3, characterized in that: The negative ion water mist exciter comprises an atomization control circuit, and the mesh excitation sheet is loaded with a voltage with a frequency of 3K-5MHZ and a peak value of 60-90V through the atomization control circuit.

8. The water negative ion generating module based on water mist charging according to any one of claims 1 to 3, characterized in that: The negative ion water mist exciter also includes a water-absorbing elastic body, the liquid in the liquid storage cavity is supplied to the water-absorbing elastic body, and the mesh excitation sheet is driven to impact the water-absorbing elastic body to rub the liquid droplets to generate the negative ion water mist.

9. The water negative ion generating module based on water mist charging according to any one of claims 1 to 3, characterized in that: The negative ion water mist excitation device includes a plurality of columns of negative ion water mist excitation devices arranged at intervals, each column of negative ion water mist excitation devices includes one or more negative ion water mist excitation devices, wherein one or more charging needles are arranged between two adjacent columns of negative ion water mist excitation devices; or the negative ion water mist excitation device includes a plurality of negative ion water mist excitation devices surrounding one charging needle.

10. A water negative ion air conditioner, characterized in that: It comprises a water negative ion generating module based on water mist charging as described in any one of claims 1 to 9.

Images