CN114076378A - Ion generating device, air treatment module and electrical equipment - Google Patents

Ion generating device, air treatment module and electrical equipment Download PDF

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Publication number
CN114076378A
CN114076378A CN202010854284.6A CN202010854284A CN114076378A CN 114076378 A CN114076378 A CN 114076378A CN 202010854284 A CN202010854284 A CN 202010854284A CN 114076378 A CN114076378 A CN 114076378A
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Prior art keywords
output voltage
voltage
ion generating
ion
negative
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CN202010854284.6A
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CN114076378B (en
Inventor
杨平
陈新厂
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The invention discloses an ion generating device, an air processing module and electrical equipment, wherein the ion generating device comprises: a direct current power supply; the high-voltage generator is connected with the direct-current power supply and used for converting the voltage of the direct-current power supply and generating a first output voltage and a second output voltage so as to output the voltage alternately at least between the first output voltage and the second output voltage in a first preset period when the ion generating device works; wherein the first output voltage is less than the second output voltage; and the ion release module is connected with the high-voltage generator and is used for working according to the first output voltage and the second output voltage so as to generate and release plasma. The invention solves the problems that when the voltage output by the high-voltage generator is too low, the ion concentration is low, the sterilization and odor removal effects are poor, or when the voltage is too high, air is easy to puncture to generate a large amount of ozone.

Description

Ion generating device, air treatment module and electrical equipment
Technical Field
The invention relates to the technical field of air treatment, in particular to an ion generating device, an air treatment module and electrical equipment.
Background
At present, in electrical equipment such as air conditioners, purifiers and the like, an anion technology is mostly adopted for air purification, or plasma is adopted for sterilization and disinfection, and after the electrical equipment is started, a high-voltage driving ion generator is always started to release anions or plasma. However, if the whole machine is operated at high voltage for a long time, too many negative ions are released from the whole machine, so that static electricity accumulation can be caused, the electric control parts of the whole machine can be damaged by the static electricity accumulation, the ozone concentration exceeds the standard due to too many negative ions released from a room, and if the whole machine is operated at low voltage for a long time, the generated ions are insufficient, so that the sterilization and purification effects are poor.
Disclosure of Invention
The invention mainly aims to provide an ion generating device, an air processing module and electrical equipment, and aims to solve the problems that when the voltage output by a high-voltage generator is too low, the ion concentration is low, the sterilization and odor removal effects are poor, or when the voltage is too high, air is easy to puncture to generate a large amount of ozone.
To achieve the above object, the present invention provides an ion generating device, comprising:
a direct current power supply;
the high-voltage generator is connected with the direct-current power supply and used for converting the voltage of the direct-current power supply and generating a first output voltage and a second output voltage so as to output the voltage alternately at least between the first output voltage and the second output voltage in a first preset period when the ion generating device works; wherein the first output voltage is less than the second output voltage; and
and the ion release module is connected with the high-voltage generator and is used for working according to the first output voltage and the second output voltage so as to generate and release plasma.
Optionally, the high voltage generator is further configured to convert a voltage of the dc power supply and generate a third output voltage, so as to alternate between the first output voltage, the second output voltage and the third output voltage for outputting in the first preset period when the ion generating device is in operation; wherein the third output voltage is greater than the second output voltage.
Optionally, the high voltage generator increases from the first output voltage to the second output voltage at a rate of increasing by a first voltage value per unit time t while alternating outputs among the first output voltage, the second output voltage and the third output voltage at the first preset period;
increasing from the second output voltage to the third output voltage at a rate of increasing a second voltage value per unit time t;
decreasing from the third output voltage to the first output voltage at a rate that increases by a third voltage value per unit time t; wherein the first voltage value is greater than the second voltage value and less than the third voltage value.
Optionally, the ion releasing module is a negative ion releasing module.
Optionally, the ion releasing module is a plasma releasing module.
Optionally, the plasma discharge module comprises:
the positive discharge plate comprises a positive plate and a plurality of positive electrodes arranged on the positive plate;
and the negative discharge plate is arranged opposite to the positive discharge plate and comprises a negative plate and a plurality of negative electrodes arranged on the negative plate.
Optionally, the positive electrode is a toothed discharge electrode;
and/or the negative electrode is a needle-shaped discharge electrode.
Optionally, the plurality of positive electrodes are arranged in an arrangement manner of at least 1 positive electrode per 5 centimeters of the positive plate.
Optionally, the diameter of the negative electrodes is 1 mm-1 cm;
the negative electrodes are arranged on the negative plate in an arrangement mode that at least 4 negative electrodes are arranged every 5 centimeters.
Optionally, the distance between the plurality of positive electrodes and the plurality of negative electrodes is 2 cm-8 cm.
Optionally, the high voltage generator is specifically configured to convert the dc power supply and generate the first output voltage, and after converting the dc power supply and generating a pulse power supply, superimpose the dc power supply to generate the second output voltage.
Optionally, the high voltage generator outputs the first output voltage and the second output voltage alternately at a first preset period at a rising and falling rate of 0.1Kv to 5 Kv/millisecond.
The invention also provides an air treatment module which comprises the ion generating device.
The invention also provides an electrical appliance comprising the ion generating device and/or comprising the air treatment module.
Optionally, the electrical equipment is an air conditioner, a dehumidifier, a fan heater and an air purifier.
According to the ion generating device, the direct-current power supply and the high-voltage generator are arranged, the voltage of the direct-current power supply is converted through the high-voltage generator, and a first output voltage and a second output voltage are generated, so that when the ion generating device works, at least the first output voltage and the second output voltage are alternately changed and output to the ion releasing module at a first preset period, the ion releasing module works according to the first output voltage and the second output voltage, and then plasma is generated and released. The ion generating device starts to output from the first output voltage and continuously increases to the second output voltage at least in the first preset period, then continuously decreases to the first output voltage by the output of the second output voltage, and generates ions, so that the ion generating device can effectively control the generation amount of ozone under the condition of high air purification efficiency, and can achieve the beneficial effect of ultralow energy consumption under the condition of low air pollution degree. The invention solves the problems that when the voltage output by the high-voltage generator is too low, the ion concentration is low, the sterilization and odor removal effects are poor, or when the voltage is too high, air is easy to puncture to generate a large amount of ozone.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of an embodiment of an ion generating device according to the present invention;
FIG. 2 is a waveform diagram of the output voltage of the high voltage generator of FIG. 1 in one embodiment;
FIG. 3 is a schematic structural diagram of another embodiment of the ion generating device shown in FIG. 1;
FIG. 4 is a waveform diagram of the output voltage of the high voltage generator of FIG. 1 in another embodiment;
fig. 5 is a schematic diagram of functional modules of another embodiment of the ion generating device of the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
10 Direct current power supply 311 Positive plate
20 High voltage generator 312 Positive electrode
30 Ion releasing module 321 Negative plate
31 Positive electrode discharge polar plate 322 Negative electrode
32 Negative electrode discharge polar plate
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an ion generating device.
An ion generating device is a device that generates positive and negative plasma or negative ions of air. For example, in an anion generating device, the device carries out overvoltage current limiting through a pulse type circuit after the input direct current or alternating current is processed by an EMI processing circuit and a lightning stroke protection circuit; high-low voltage isolation and other lines are raised to alternating current high voltage, then pure direct current negative high voltage is obtained after rectification and filtration through special grade electronic materials, the direct current negative high voltage is connected to a release tip made of metal or carbon elements, high corona is generated by utilizing the tip direct current high voltage, a large amount of electrons (e-) are emitted at high speed, the electrons cannot exist in the air for a long time (the service life of the existing electrons is only nS grade), and the electrons can be immediately captured by oxygen molecules (O2) in the air, so that air negative ions are generated. The high-voltage electricity generated by the high-voltage generating device is generally constant, the direct-current negative high-voltage electricity is between-6 kV and-8 kV, the input voltage is lower than-6 kV, the concentration of released negative ions is too low, the concentration of released negative ions is low, and the effect of the negative ions is not obvious; when the continuous input voltage is higher than-8 kV, ozone is easily ionized, and a large amount of negative ions are continuously released to generate static accumulation, so that the risk of electrostatic breakdown of a structural part is seriously generated.
In order to solve the above problem, referring to fig. 1 to 5, in an embodiment of the present invention, the ion generating apparatus includes:
a DC power supply 10;
a high voltage generator 20 connected to the dc power supply 10, wherein the high voltage generator 20 is configured to convert a voltage of the dc power supply 10 and generate a first output voltage and a second output voltage, so as to output alternately at least between the first output voltage and the second output voltage at a first preset period when the ion generating device is in operation; wherein the first output voltage is less than the second output voltage; and
and the ion release module 30 is connected with the high voltage generator 20, and the ion release module 30 is used for operating according to the first output voltage and the second output voltage so as to generate and release plasma.
In this embodiment, the dc power supply 10 is connected to an ac power supply, and converts ac power into dc power; the high voltage generator 20 is connected to the dc power supply 10 and the ion releasing module 30, and the high voltage generator 20 is configured to convert the accessed dc power into high voltage power and output the high voltage power to the ion releasing module 30, so as to provide a high voltage power supply for the ion releasing module 30. The high voltage generator 20 may specifically adopt a high voltage generating circuit formed by components such as a step-up transformer, a 555 timer, a power switching tube, an inductor, a diode, a capacitor, a resistor and the like, and specifically may form an oscillating circuit by the 555 timer, the resistor, the capacitor and the diode, and the 555 timer outputs a pulse signal to drive the power switching tube to be turned on/off, thereby controlling the electric energy output of the step-up transformer. The high voltage generator 20 may be implemented by a negative high voltage generator 20 or a positive and negative high voltage generator 20, or a combination of the negative high voltage generator 20 and the positive and negative high voltage generators 20, which is not limited herein. In the negative high voltage generator 20, the negative high voltage generator 20 is connected to the negative ion releasing module 30, and the negative high voltage generator 20 has a negative high voltage output terminal electrically connected to a negative high voltage input terminal of the negative ion releasing module 30. In the positive and negative high voltage generator 20, the positive and negative high voltage generator 20 has a positive voltage output terminal electrically connected to the positive high voltage input terminal of the positive and negative ion releasing module 30 and a negative high voltage output terminal electrically connected to the negative high voltage input terminal of the positive and negative ion releasing module 30. The direct current connected to the high voltage generator 20 may be 32v, 25v or 36v, and the values of the first output voltage and the second output voltage are different according to the difference of the ion release module 30 connected to the high voltage generator 20, that is, the high voltage generated by the high voltage generator 20 may be positive and negative high voltage, or may be negative high voltage, and in the negative high voltage, the negative high voltage may be-2 to-14 Kv. Among the positive high pressure, the positive high pressure may be 0Kv to 15 Kv.
When the high voltage generator 20 supplies power to the negative ion releasing module 30, the first output voltage may be set to-2 to-6 Kv, and the second output voltage may be set to-8 to-10 Kv. When the high voltage generator 20 supplies power to the positive and negative ion releasing module 30, the first output voltage may be set to 0 to 5Kv, and the second output voltage may be set to 10 to 15 Kv. In this manner, the high voltage generator 20 alternately outputs between the first output voltage and the second output voltage when the high voltage generator 20 operates. In some specific embodiments, when the high voltage generator 20 alternately outputs between the first output voltage and the second output voltage, the first output voltage may be directly boosted to the second output voltage after outputting for a preset time, and the second output voltage may be directly decreased to the first output voltage after outputting for a preset time, or the first output voltage may be a trough, the second output voltage may be a peak, and the first output voltage and the second output voltage may be changed in a half-sine waveform or a sine-like waveform, or a tooth-like waveform (triangle wave, sawtooth wave, trapezoid, etc.) between the first output voltage and the second output voltage.
In this embodiment, the number of the ion releasing modules 30 may be one or two, and when one ion releasing module 30 is provided, the ion releasing module 30 may be a plasma releasing module 30, or may be a negative ion releasing module 30. When two ion releasing modules are provided, two plasma releasing modules 30 and two anion releasing modules 30 may be provided, or as shown in fig. 5, two ion releasing modules are a plasma releasing module 30A and an anion releasing module 30A, respectively. The negative ion releasing module 30 can be a negative ion releasing module 30, or a positive and negative ion releasing module 30, that is, a plasma releasing module 30A, the positive and negative ion releasing module 30 ionizes air (mainly oxygen) according to high voltage output by the high voltage generator 20 to generate a large amount of positive ions and negative ions, huge energy is released at the moment when the positive ions and the negative ions are neutralized in the air, water molecules generate positive ions, negative ions, high-energy electrons, active free radicals and the like, and active oxides and charged ions can cause cell membranes or cell walls to break, so that the cell membranes or the cell walls can die or lose reproductive capacity, and the purpose of sterilization is achieved; meanwhile, redundant negative ions float in the air, and the aims of smoke elimination, dust removal, peculiar smell elimination and air purification can be achieved. The negative ion generator ionizes nearby air after receiving the electric energy output by the high-voltage generator 20, and generates free ions, so that particle pollutants such as dust and the like in the air obtain electric charges, namely, the air is ionized to generate negative ions, the negative ions can generate chemical reaction in the air to generate active substances, and decompose microorganisms such as bacteria, fungi and the like in the air to realize the sterilization effect, and the generated negative ions can generate strong oxidizing active substances, so that the odor substances in the air can be subjected to oxidative decomposition to play a role in removing odor; when the concentration of the negative ions reaches a certain value, the negative ions can charge dust in the air, so that the dust is settled. The ion releasing module 30 generates corresponding ions (equal amounts of positive ions and negative ions, or pure negative ions) according to the first output voltage and the second output voltage which are alternately output. It will be appreciated that the first output voltage is less than the second output voltage, and therefore the ions generated by the ion discharge module 30 when operating at the first output voltage are less than the ions generated when operating at the second output voltage. The ion releasing module 30 alternately operates between the first output voltage and the second output voltage, so that a higher ion concentration can be generated even at a lower voltage, and a large amount of ozone is not generated.
It can be understood that, in the ion generating device, a detection circuit or a sensor for detecting air quality may be further provided, or when the ion generating device is operated according to a user's requirement, for example, when a preset opening concentration threshold of the concentration of the current air particulate matter is detected, which indicates that the current air pollution is serious, at this time, the high voltage generator 20 starts to output from the first output voltage and continuously increases to the second output voltage in a first preset period, and then outputs from the second output voltage and continuously decreases to the first output voltage, and supplies a voltage to the ion releasing module 30, so that the ion releasing module 30 operates at the first output voltage and generates ions; ion release module 30 works with the second output voltage and produces the pollution degree of ion in order to improve current air, and the process is advanced, and until detecting particulate matter concentration and being less than predetermined closing concentration threshold value or reaching the working duration that the user set for, the voltage output to ion release module 30 stops for under the condition that ion generating device possesses higher air purification efficiency, can effectively control the emergence volume of ozone, can reach again and have the beneficial effect of ultralow energy consumption under the lower condition of air pollution degree.
According to the ion generating device, the direct current power supply 10 and the high voltage generator 20 are arranged, the voltage of the direct current power supply 10 is converted through the high voltage generator 20, and a first output voltage and a second output voltage are generated, so that when the ion generating device works, at least the first output voltage and the second output voltage are alternately changed and output to the ion releasing module 30 at a first preset period, and the ion releasing module 30 works according to the first output voltage and the second output voltage, so that plasma is generated and released. The ion generating device starts to output from the first output voltage and continuously increases to the second output voltage at least in the first preset period, then continuously decreases to the first output voltage by the output of the second output voltage, and generates ions, so that the ion generating device can effectively control the generation amount of ozone under the condition of high air purification efficiency, and can achieve the beneficial effect of ultralow energy consumption under the condition of low air pollution degree. The invention solves the problems that when the voltage output by the high-voltage generator 20 is too low, the ion concentration is low, the sterilization and odor removal effects are poor, or when the voltage is too high, air is easy to puncture to generate a large amount of ozone.
Referring to fig. 1 and 2, in an embodiment, the high voltage generator 20 is further configured to convert a voltage of the dc power supply 10 and generate a third output voltage, so as to alternate between the first output voltage, the second output voltage and the third output voltage for outputting in the first preset period when the ion generating device is in operation; wherein the third output voltage is greater than the second output voltage.
In this embodiment, the relationship among the first output voltage, the second output voltage, and the third output voltage is sequentially increased, that is, the first output voltage is less than the second output voltage and less than the third output voltage. Wherein the first output voltage value may be-2 Kv, the second output voltage may be-8 Kv, and the third output voltage may be-14 Kv. The first output voltage rises to the second output voltage, the second output voltage rises to the third output voltage, and the rate of the third output voltage falling to the first output voltage can be set to be the same or different, that is, the rate of the first output voltage rising to the second output voltage is greater than the rate of the second output voltage rising to the third output voltage, and the rate of the third output voltage falling to the first output voltage is greater than the rate of the first output voltage rising to the second output voltage. The first output voltage may be a minimum threshold voltage at which the ion releasing module 30 can generate ions, the third output voltage may be a maximum threshold voltage at which the ion releasing module 30 can generate ions most and ozone is likely to occur, and the second output voltage may be a voltage with a relatively large efficacy, that is, a voltage with a relatively large number of generated ions and relatively low power consumption. So set up, can effectively improve ion release amount to and increase ion propagation distance, be favorable to improving particulate matter purification volume, can also avoid the ion accumulation phenomenon that long-time high concentration ion release produced simultaneously, voltage periodic variation is favorable to reducing ion release module 30 and working in the high pressure for a long time and produce the oxidation risk.
Further, in the above-described embodiment, the high voltage generator 20 rises from the first output voltage to the second output voltage at a rate of rising by a first voltage value per unit time t while alternately changing the output among the first output voltage, the second output voltage, and the third output voltage at a first preset period;
increasing from the second output voltage to the third output voltage at a rate of increasing a second voltage value per unit time t;
decreasing from the third output voltage to the first output voltage at a rate that increases by a third voltage value per unit time t; wherein the first voltage value is greater than the second voltage value and less than the third voltage value.
In this embodiment, the first voltage value may be-2 Kv, the second voltage value may be-1 Kv, and the third voltage value may be-3 Kv, in practical application, the voltage output by the high voltage generator 20 is rapidly increased from-2 Kv voltage to-8 Kv at a rate of-2 Kv/t, after increasing to-8 Kv, is slowly increased from-8 Kv to-14 Kv at a rate of-1 Kv/t, and is rapidly decreased to-2 Kv at a rate of-3 Kv/t after reaching-14 Kv, and as measured by experiments, when the high voltage generator 20 periodically outputs high voltage according to the above-mentioned variation rule, the average voltage of the ion release module 30 can be increased to-10K, the release amount of negative ions is increased by more than 20%, and the propagation distance of negative ions is increased by more than 30%, the purification amount of the particles is improved by more than 10 percent. In addition, the overall high voltage changes in real time, and different rates are adopted when the first output voltage, the second output voltage and the third output voltage rise or fall, for example, a higher speed is adopted when the voltage is low to high, a gentler speed is adopted when the voltage is high, and a faster speed is adopted when the voltage falls, so that the duration of the low voltage with less generated ions is shorter, the duration of the high voltage with more generated ions is longer, the rising and falling times of the low voltage and the high voltage are reasonably distributed, the ion release amount can be improved, the working efficiency of the ion generating device is high, the energy consumption is reduced, and the energy efficiency ratio of the ion generating device is improved. The invention can effectively solve the problem of insufficient release amount of negative ions caused by long-time trough voltage or the phenomenon of ozone ionization caused by long-time peak voltage, and even break down structural members in the ion generating device because of long-time work at high voltage.
Referring to fig. 1 and 3, in an embodiment, when the ion discharging module 30 is the plasma discharging module 30, the plasma discharging module 30 includes:
a positive discharge plate 31 including a positive plate 311 and a plurality of positive electrodes 312 disposed on the positive plate 311;
and a negative discharge electrode plate 32 disposed opposite to the positive discharge electrode plate 31, wherein the negative discharge electrode plate 32 includes a negative electrode plate 321 and a plurality of negative electrodes 322 disposed on the negative electrode plate 321.
In this embodiment, the positive electrode plate 311 and the negative electrode plate 321 have the same shape and size and are substantially in the form of a long plate. The positive electrode plate 311 and the negative electrode plate 321 may be made of a stainless steel material or an aluminum material, or may be made of a non-metal material such as an aluminum nitride ceramic plate or an epoxy resin. The negative electrode 322 may be made of a material capable of releasing ions, such as carbon fiber, metal, etc., and ionizes nearby air and generates free ions after receiving the electric energy output by the high voltage generator 20, so that particulate pollutants, such as dust, in the air can obtain electric charges. The positive electrode plate 311 and the negative electrode plate 321 are respectively provided with a voltage interface, which may be implemented by using an elastic contact for connecting a high voltage conveniently, so that electricity may be connected to the positive and negative electrode plates when the plug of the high voltage generator 20 is plugged in. When the voltage interface of the positive plate 311 is connected with a positive voltage, positive ions can be ionized from the positive electrode 312, and correspondingly, the positive plate 311 is connected with a negative voltage, negative ions can be ionized from the negative electrode 322.
The shape of the positive and negative electrodes may be needle-shaped, saw-toothed or tapered, and in this embodiment, the positive electrode 312 is optionally toothed, and the negative electrode 322 is needle-shaped. Concentrated discharge can be realized by arranging the toothed tip of the positive electrode 312, air can be punctured more easily to form a corona electric field, high-concentration ions can be generated instantly, the needle points with higher distribution density on the positive electrode 312 and the negative electrode are opposite, the high-concentration ions formed by the needle point discharge electrodes respectively collide with each other to be neutralized, and high-concentration high-energy plasma is generated. Positive electrode 312 can set up to equilateral triangle or isosceles triangle structure, and two length of a side of triangle structure are isometric for electrode and air area of contact are the same, can make about discharge more even, and the ion concentration difference is little in the plasma region, makes the air disinfect more evenly more thoroughly when passing through.
The positive electrode 312 and the negative electrode 322 can be provided in plural, which can increase the ionization efficiency, and the plural discharge electrodes are uniformly arranged on the respective electrode plates, which is beneficial to achieving the ionization uniformity. The plurality of positive electrodes 312 are arranged in an arrangement manner of at least 1 positive electrode in every 5 cm of the positive electrode plate 311. The diameters of the negative electrodes 322 are 1 mm-1 cm;
the negative electrodes 322 are arranged on the negative electrode plate 321 in an arrangement manner of at least 4 negative electrodes 322 per 5 cm.
The positive electrode 312, the discharge needle tip and the negative electrode 322 are oppositely arranged, the vertical distance between the positive electrode 312 and the discharge needle tip can be set to be 2 cm-8 cm, and the positive and negative ions ionized by the two electrodes can be effectively blocked by setting the vertical distance between the positive electrode 312 and the discharge needle tip and the negative electrode 322 to be 2 cm-8 cm, so that the neutralization of the two ions is avoided, and the deodorization and sterilization effects are improved. Simultaneously, vertical distance between them sets up big more, and the creepage distance of two electrodes is just big more, and the effect of keeping apart is then better, and distance between them also can not be too big, and too big separation effect that plays is not big, and can make ion generating device's structure and the inner structure of air conditioning indoor set take place to interfere, and can influence the air-out etc. of air conditioner. Therefore, the distance between the two is set to be 2 cm-8 cm, so that a better ionization effect can be realized, and the stable installation of the structure can be met.
Referring to fig. 3 and 4, in an embodiment, the high voltage generator 20 is specifically configured to convert the dc power supply 10 and generate the first output voltage, and to superpose the dc power supply 10 after converting the dc power supply 10 and generating a pulse power supply to generate the second output voltage.
In this embodiment, the high voltage generator 20 generates the first output voltage by using the basic dc power supply 10, and superimposes the basic dc power supply 10 and the pulse power supply to form the second output voltage, where the first output voltage and the second output voltage are output in a tooth-shaped waveform (triangular wave, sawtooth wave), which can instantly form a very high voltage, and the positive electrode and the negative electrode can instantly discharge to release a large amount of plasma, thereby preventing the high voltage generator 20 from maintaining the high voltage output, easily ionizing atoms in a large amount of oxygen molecules, and combining singlet oxygen atoms with air oxygen molecules to form ozone, which causes too high ozone concentration and harm to human body.
Further, in the above embodiment, the high voltage generator 20 outputs the first output voltage and the second output voltage alternately at the first preset period at the rising and falling rate of 0.1Kv to 5 Kv/ms.
In this embodiment, the high voltage generator 20 starts from the first output voltage of 0Kv to 5Kv, and rises to the second output voltage of 10Kv to 15Kv at a rising speed of 0.1Kv to 5 Kv/millisecond, and then falls to the first output voltage of 0Kv to 5Kv from the second output voltage of 10Kv to 15Kv at a falling speed of 0.1Kv to 5 Kv/millisecond, so that the high voltage generator 20 forms the peak voltage only at the second output voltage, and forms the high voltage at the peak section, and most of the high voltage is still at the low voltage, thereby avoiding ionizing breakdown of air, having low ozone concentration, and being more reliable in high voltage. The experiment shows that the first output voltage of 0-5 Kv is taken as a wave trough, the second output voltage of 10-15 Kv is taken as a wave crest, a half sine waveform or a sine-like waveform is formed between the first output voltage and the second output voltage, or a tooth-shaped waveform (triangular wave, sawtooth wave, trapezoid and the like) is formed between the first output voltage and the second output voltage for change, the concentration of ozone generated by 1 hour of accumulation is less than 10ppb, and the 1 hour space sterilization rate is more than 99%. The high-voltage generator changes in a tooth-shaped waveform (triangular wave, sawtooth wave, trapezoid and the like) between the first output voltage and the second output voltage, and can solve the problems that the plasma release module has low ion concentration due to too low received voltage, has poor sterilization and odor removal effects, or is easy to puncture air to generate a large amount of ozone when the voltage is too high.
The invention also provides an air treatment module which comprises the ion generating device.
The detailed structure of the ion generating device can refer to the above embodiments, and is not described herein; it can be understood that, because the ion generating device is used in the air processing module of the present invention, the embodiment of the air processing module of the present invention includes all technical solutions of all embodiments of the ion generating device, and the achieved technical effects are also completely the same, and are not described herein again.
Referring to fig. 5, in an embodiment, the number of the ion generating devices may be one or two.
When the ion generating apparatus is configured as one, the ion generating apparatus includes the high voltage generator 20 and one or two ion releasing modules 30, and when the ion releasing module 30 is configured as one, the ion releasing module 30 may be a plasma releasing module 30, or may be a negative ion releasing module 30. When two ion releasing modules are provided, two plasma releasing modules 30 and two anion releasing modules 30 may be provided, or as shown in fig. 5, two ion releasing modules are a plasma releasing module 30A and an anion releasing module 30B, respectively. When two plasma discharge modules 30 are provided, the high voltage generator 20 can generate positive and negative high voltages for the plasma discharge modules 30, and when two negative ion discharge modules 30 are provided, the high voltage generator 20 can generate negative high voltages. When the plasma discharge module 30A and the negative ion discharge module 30B are provided at the same time, the high voltage generator 20 may generate positive and negative high voltages for the plasma discharge module 30A to operate and negative high voltages for the negative ion discharge module 30B to operate.
In this embodiment, when the ion releasing module 30 is set as one, the plasma releasing module 30 may be optionally set, the plasma releasing module 30 includes a positive ion generator and a negative ion generator, and the high voltage generator 20 superimposes the accessed direct current and the pulse power supply, so as to obtain a triangular waveform voltage having a peak and a trough. The high voltage generator 20 provides the positive ion generator and the negative ion generator with the driving voltage for operation, respectively, so as to drive the positive ion generator and the negative ion generator to operate. According to the application requirement, a voltage transformation circuit is arranged in the high voltage generator 20, and the voltage transformation circuit can ensure that the voltage output to the positive ion generator and the negative ion generator meets the requirement of working voltage and ensure that the positive ion generator and the negative ion generator can work normally. The high voltage generator 20 may further include a control circuit for controlling the operation of the positive ion generator according to a control signal input from the control signal input terminal. In the working process of the high voltage generator 20, the outputs of the negative ion generator and the positive ion generator are controlled by the control circuit, so that the sterilization function of the plasma release module 30 and the convenience of the air purification function of the negative ion release module 30 can be realized on the basis of not increasing the number of the positive and negative ion release modules 30 in the ion generating device.
The invention also provides an electrical appliance comprising the ion generating device and/or comprising the air treatment module.
The detailed structure of the ion generating device can refer to the above embodiments, and is not described herein; it can be understood that, because the ion generating device is used in the electrical apparatus of the present invention, embodiments of the electrical apparatus of the present invention include all technical solutions of all embodiments of the ion generating device, and the achieved technical effects are also completely the same, and are not described herein again.
Wherein, the electrical equipment is air conditioner, dehumidifier, electric fan heater and air purifier. The air conditioner can be an air conditioner indoor unit (such as a wall-mounted unit), a purifier, a humidifier, a mobile air conditioner, an integrated air conditioner and other equipment with an air purifying function, and the integrated air conditioner can be a square cabinet or a round cabinet and other types.
The embodiment is described by taking an air conditioner as an example, the air conditioner comprises a shell, a fan and a heat exchanger, a heat exchange air channel is formed in the shell, and the fan and the heat exchanger are both arranged in the heat exchange air channel. The casing generally includes air inlet panel and air outlet panel, for example in circular cabinet air conditioner, air inlet panel and air outlet panel can enclose and form an annular casing, and be circular-arc with the air outlet panel. The air conditioner further comprises an air deflector and a louver assembly, the air deflector and the louver assembly are arranged on the air outlet panel, the louver assembly guides the air at the air outlet in the left-right direction, the air deflector guides the air at the air outlet in the up-down direction, and the air deflector and the air outlet are matched to enhance the air outlet effect of the air outlet.
The air-conditioning indoor unit further comprises a heat exchanger and a fan which are arranged in the shell. The fan can be established to the through-flow wind wheel, and its shape is cylindricly roughly, and the heat exchanger can be plate heat exchanger, can increase heat transfer area through plate heat exchanger, and plate heat exchanger makes things convenient for processing and maintenance simultaneously. The outside air enters the air duct from the air inlet under the driving of the fan, exchanges heat through the heat exchanger and is finally blown out from the air outlet. Because of the easy laying dust of heat exchanger and wind wheel and breed the bacterium, so can locate between heat exchanger and the wind wheel as plasma generating device with ion generating device, can do between them distance closely to realize fine bactericidal effect, and the efficiency of disinfecting effectively improves. Particularly, when the heat exchanger is in a V shape or a W shape, the ion generating device can be installed on the fixing plates at the left side and the right side of the heat exchanger, so that stable installation is realized.
Specifically, when the indoor unit of the air conditioner runs, the sterilization mode is started, the plasma generation device controls the plasma generation device to ionize, ionized positive and negative ions and active substances can be released indoors by means of blown airflow, so that bacteria are killed, and the air in the room is recycled for multiple times to achieve the purpose of purifying and sterilizing the indoor air. Meanwhile, the sterilization mode can be operated when the indoor unit of the air conditioner is in a closed state, so that bacteria and odor in the indoor unit of the air conditioner can be effectively removed, peculiar smell generated after the indoor unit of the air conditioner is not used for a long time and is restarted can be prevented, and the performance of the indoor unit of the air conditioner can be effectively improved.
When the ion generating device is used as the negative ion generating device, the ion generating device can be arranged in the heat exchange air channel and can purify the air, the ion generating device can be arranged close to the air inlet side or the air outlet side of the heat exchange air channel, of course, the ion generating device can also be arranged in the middle of the heat exchange air channel, and for example, the ion generating device is arranged between the heat exchanger and the fan. The ion generating device can be matched with the electric purification module for use, so that when indoor air flows through the electric purification module, the electric purification module can adsorb charged dust in the indoor air; the electric purification module comprises a filter screen, and the filter screen can filter large particles in indoor air; the air conditioner can also comprise a humidifier which can release water vapor indoors; the air conditioner may further include a washing module capable of forming a washing water curtain to wash air flowing through the washing module.
The purification module can be realized by an electric purification module consisting of two electrode plates with different electrodes, namely an adsorption polar plate and a repulsion polar plate, specifically, the adsorption substrate can be provided with an electric property opposite to the ion charge generated by the negative ion generating device, the repulsion polar plate can be provided with an electric property the same as the ion charge generated by the negative ion generating device, and the purification module maintains an electric field which is enough to ionize gas after receiving high-voltage direct current generated by the high-voltage generating device. The dust is ionized by the ion generating device and then charged, and the dust with different charged polarities respectively moves to the electrode plates with different polarities under the action of the electric field force and is deposited on the electrode plates of the purification module, so that the aim of separating the dust from gas is fulfilled. Of course, the purification module can also be a common filter screen, and can filter out large particles in the air. In addition, the purification module can also be the combination module of electrical purification body and filter screen, that is to say, the purification module includes electrical purification body and the filter screen of range upon range of setting along the air inlet direction, and optionally, the filter screen is located the air inlet side of electrical purification body to big particulate matter in the filtered air earlier.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (15)

1. An ion generating device, comprising:
a direct current power supply;
the high-voltage generator is connected with the direct-current power supply and used for converting the voltage of the direct-current power supply and generating a first output voltage and a second output voltage so as to output the voltage alternately at least between the first output voltage and the second output voltage in a first preset period when the ion generating device works; wherein the first output voltage is less than the second output voltage; and
and the ion release module is connected with the high-voltage generator and is used for working according to the first output voltage and the second output voltage so as to generate and release plasma.
2. The ion generating device of claim 1, wherein the high voltage generator is further configured to convert a voltage of the dc power supply and generate a third output voltage to alternate the output among the first output voltage, the second output voltage, and the third output voltage for the first predetermined period when the ion generating device is operated; wherein the third output voltage is greater than the second output voltage.
3. The ion generating device of claim 2, wherein the high voltage generator rises from the first output voltage to the second output voltage at a rate of rising by a first voltage value per unit time t while alternating outputs among the first output voltage, the second output voltage, and the third output voltage at the first preset period;
increasing from the second output voltage to the third output voltage at a rate of increasing a second voltage value per unit time t;
decreasing from the third output voltage to the first output voltage at a rate that increases by a third voltage value per unit time t; wherein the first voltage value is greater than the second voltage value and less than the third voltage value.
4. The ion generating apparatus according to any one of claims 1 to 3, wherein the ion releasing module is a negative ion releasing module.
5. The ion generating apparatus according to any one of claims 1 to 3, wherein the ion releasing module is a plasma releasing module.
6. The ion generating apparatus of claim 5, wherein the plasma discharge module comprises:
the positive discharge plate comprises a positive plate and a plurality of positive electrodes arranged on the positive plate;
and the negative discharge plate is arranged opposite to the positive discharge plate and comprises a negative plate and a plurality of negative electrodes arranged on the negative plate.
7. The ion generating device according to claim 6, wherein the positive electrode is a toothed discharge electrode;
and/or the negative electrode is a needle-shaped discharge electrode.
8. The ion generating apparatus according to claim 6, wherein a plurality of the positive electrodes are arranged in an arrangement of at least 1 per 5 cm of the positive electrode plate.
9. The ion generating apparatus according to claim 6, wherein the plurality of negative electrodes have a diameter of 1mm to 1 cm;
the negative electrodes are arranged on the negative plate in an arrangement mode that at least 4 negative electrodes are arranged every 5 centimeters.
10. The ion generating apparatus according to claim 6, wherein the distance between the plurality of positive electrodes and the plurality of negative electrodes is 2cm to 8 cm.
11. The ion generating device of claim 5, wherein the high voltage generator is specifically configured to convert the DC power source to generate the first output voltage, and to superimpose the DC power source after converting the DC power source to generate the pulsed power source to generate the second output voltage.
12. The ion generating apparatus of claim 5, wherein the high voltage generator outputs at a rising and falling rate of 0.1Kv to 5 Kv/msec while alternately outputting the first output voltage and the second output voltage at a first preset period.
13. An air treatment module comprising an ion generating device according to any one of claims 1 to 12.
14. An electrical apparatus comprising an ion generating device according to any one of claims 1 to 12, and/or comprising an air treatment module according to claim 13.
15. The electrical apparatus of claim 14, wherein the electrical apparatus is an air conditioner, a dehumidifier, a fan heater, and an air purifier.
CN202010854284.6A 2020-08-21 2020-08-21 Ion generating device, air processing module and electrical equipment Active CN114076378B (en)

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