CN114421286A - Active fog ion generating device and control method thereof - Google Patents

Active fog ion generating device and control method thereof Download PDF

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Publication number
CN114421286A
CN114421286A CN202210317554.9A CN202210317554A CN114421286A CN 114421286 A CN114421286 A CN 114421286A CN 202210317554 A CN202210317554 A CN 202210317554A CN 114421286 A CN114421286 A CN 114421286A
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resistor
water
power supply
honeycomb
circuit
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CN114421286B (en
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陈颖
刘鹤宁
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Beijing Fu Yun Cloud Data Technology Co ltd
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Beijing Fu Yun Cloud Data Technology Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Chemical & Material Sciences (AREA)
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Abstract

The invention provides an active fog ion generating device and a control method thereof, belonging to the technical field of environmental protection. The device includes: the device comprises a power supply, a piezoelectric ceramic booster circuit, a water collecting module and a discharging module; the input end of the piezoelectric ceramic booster circuit is connected with the output end of the power supply to boost the voltage output by the power supply; the water collecting module comprises a refrigerating unit and a condensation needle, and the refrigerating unit reduces the temperature on the condensation needle to condense the moisture in the air on the condensation needle; the discharging module comprises a honeycomb structure and a plurality of discharging contacts arranged in a plurality of honeycomb holes of the honeycomb structure, the discharging contacts are electrically connected with the output end of the piezoelectric ceramic booster circuit, and water obtained from the water collecting module is formed into active fog ions. The invention uses high voltage electricity to atomize water, and has small and uniform atomized particle size and high atomized degree. A plurality of discharging contacts are arranged through the honeycomb structure, each discharging contact can work independently, and the active fog ion generation efficiency is high.

Description

Active fog ion generating device and control method thereof
Technical Field
The invention relates to the technical field of environmental protection, in particular to an active fog ion generating device and a control method thereof.
Background
The traditional liquid atomization methods can be divided into hydraulic, pneumatic, centrifugal, impact and thermal methods. The traditional liquid atomization method causes the surface of liquid to be unstable by some method, so that the liquid is separated. The surface tension of the liquid tries to keep the droplet spherical, with a minimum surface energy; the viscous force of the liquid then resists deformation of the liquid. When the external force is enough to overcome the surface tension and the viscous force, the liquid is firstly broken to form a liquid band and a liquid filament and then is broken to form fog drops.
The traditional atomization mode is unstable in initial broken liquid and unbalanced in external action, so that the particle size of atomized liquid drops is uneven, and the atomization degree of the liquid is poor.
Disclosure of Invention
Therefore, the technical problem to be solved by the embodiments of the present invention is to overcome the defects of non-uniform particle size and poor atomization degree of atomized liquid droplets in the atomization manner in the prior art, thereby providing an active mist ion generating device and a control method thereof.
To this end, the present invention provides an active mist ion generating device comprising: the device comprises a power supply, a piezoelectric ceramic booster circuit, a water collecting module and a discharging module;
the input end of the piezoelectric ceramic booster circuit is connected with the output end of the power supply to boost the voltage output by the power supply;
the water collecting module comprises a refrigerating unit and a condensation needle, wherein the refrigerating unit reduces the temperature of the condensation needle to condense moisture in the air on the condensation needle;
the discharging module comprises a honeycomb structure and a plurality of discharging contacts arranged in a plurality of honeycomb holes of the honeycomb structure, the discharging contacts are electrically connected with the output end of the piezoelectric ceramic booster circuit, and water obtained from the water collecting module is formed into active fog ions.
Optionally, an insulating support with an edge fixedly connected with the wall of the honeycomb hole is arranged in the honeycomb hole of the honeycomb structure, the center of the insulating support is overlapped with the center of the honeycomb hole, a groove is formed in the center of the insulating support, and the fixed end of the discharge contact is tightly matched and connected with the groove.
Optionally, each of the discharge contacts is connected to a corresponding first capillary outlet, and the first capillary guides water obtained from the water collection module to the discharge contacts; alternatively, the first and second electrodes may be,
each discharging contact is connected with one end of a corresponding first cotton thread, and the first cotton thread guides water obtained from the water collecting module to the discharging contact; alternatively, the first and second electrodes may be,
each discharging contact is connected with one end of a corresponding first water absorbing paper strip, and the first water absorbing paper strips guide water obtained from the water collecting module to the discharging contacts;
wherein, the honeycomb wall of the honeycomb structure is an insulating structure.
Optionally, the device further comprises an atomizer, wherein the atomizer atomizes the water obtained from the water collecting module;
the discharging module comprises an insulating shell, a first opening and a second opening are respectively arranged on two opposite sides of the insulating shell, the honeycomb structure is accommodated in the insulating shell, two ends of the honeycomb holes respectively face to two sides of the insulating shell, the first opening is hermetically connected with an outlet of the atomizer so as to form active mist ions from water atomized by the atomizer, and the second opening is an outlet of the active mist ions;
wherein, the honeycomb wall of the honeycomb structure is a conductive structure.
Optionally, the refrigeration unit comprises a thermoelectric semiconductor refrigeration assembly, the thermoelectric semiconductor refrigeration assembly comprises two oppositely arranged circuit boards and a thermoelectric element arranged between the two circuit boards, the circuit boards comprise an insulating board with heat conductivity and a circuit layer, and the circuit layer is arranged on one side of the insulating board close to the other circuit board;
the condensation pin is in contact connection with one of the two circuit boards for cooling.
Optionally, the atomizer includes the heat-conducting plate, the heat-conducting plate with two of refrigeration unit be used for the circuit board contact connection of heat radiation in the circuit board.
Optionally, the atomizer includes an atomizing sheet, the atomizing sheet is connected to an outlet of a corresponding second capillary tube, or one end of a second cotton thread, or one end of a second absorbent paper slip, and the second capillary tube, the second cotton thread, or the second absorbent paper slip is used for guiding the water obtained from the water collection module to the atomizing sheet;
the atomizing piece includes piezoceramics piece and is used for the drive piezoceramics piece vibrated's drive circuit board, the last circuit structure of drive circuit board includes:
the circuit comprises a first operational amplifier, a second operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first field-effect tube, a second field-effect tube, a third field-effect tube, a fourth field-effect tube, a fifth field-effect tube and a first capacitor;
the in-phase input end of the first operational amplifier is connected with the output end of the power supply, the reverse input end of the first operational amplifier is grounded through the first resistor, the output end of the first operational amplifier is connected with the in-phase input end of the second operational amplifier, the second resistor is arranged between the reverse input end and the output end of the first operational amplifier, one end of the third resistor and one end of the fourth resistor and the drain electrode of the first field-effect tube are respectively connected with the output end of the first power circuit, the other end of the third resistor is respectively connected with one end of the fifth resistor and the grid electrode of the second field-effect tube, the other end of the fifth resistor is grounded, the other end of the fourth resistor is connected with the drain electrode of the second field-effect tube, the source electrode of the second field-effect tube is respectively connected with the grid electrode of the first field-effect tube and the drain electrode of the third field-effect tube, and the source electrode of the second field-effect tube is also connected with one end of the sixth resistor, the other end of the sixth resistor is respectively connected with one end of the seventh resistor and the grid electrode of the third field effect transistor, the other end of the seventh resistor is respectively connected with the source electrode of the third field effect transistor, the drain electrode of the fourth field effect transistor and the grid electrode of the fifth field effect transistor, the grid electrode of the fourth field effect transistor is connected with the output end of the second operational amplifier, the drain electrode of the fifth field effect transistor is connected with the source electrode of the first field effect transistor, the source electrode of the fourth field effect transistor and the source electrode of the fifth field effect transistor are both grounded, the drain electrode of the fifth field effect transistor is also grounded through the eighth resistor and the first capacitor which are connected in parallel, and the drain electrode of the fifth field effect transistor is used as the output end of the circuit structure and is connected with the piezoelectric ceramic piece, and the reverse input end of the second operational amplifier is grounded through the ninth resistor.
Optionally, a plurality of layers of the honeycomb structures are arranged in parallel in the insulating housing from the first opening to the second opening, and the discharge contact is arranged in a honeycomb hole of each layer of the honeycomb structure.
Optionally, the piezoelectric ceramic booster circuit includes a piezoelectric ceramic transformer and a peripheral circuit;
the peripheral circuit comprises a sixth field effect transistor, a seventh field effect transistor, an eighth field effect transistor, a ninth field effect transistor, a first inductor, a second capacitor, a third capacitor and a first diode;
the drain electrode of the sixth field effect transistor and the drain electrode of the seventh field effect transistor are connected with the output end of the power supply, the source electrode of the sixth field effect transistor is connected with the drain electrode of the eighth field effect transistor, the source electrode of the seventh field effect transistor is connected with the drain electrode of the ninth field effect transistor, the source electrode of the eighth field effect transistor and the source electrode of the ninth field effect transistor are grounded, the source electrode of the sixth field effect transistor is further connected with one end of the first inductor, the other end of the first inductor is respectively connected with one end of the second capacitor and the negative electrode of the third capacitor, the source electrode of the seventh field effect transistor is further connected with the other end of the second capacitor, the anode of the first diode is connected with the anode of the third capacitor, the anode of the third capacitor and the drain electrode of the seventh field effect transistor are respectively connected with two ends of the ninth piezoelectric ceramic transformer, the joint of the first inductor and the second capacitor is the output end of the piezoelectric ceramic booster circuit.
Optionally, the water collecting module further comprises a water collecting tank, and the water collecting tank collects water condensed on the condensation needle.
The invention also provides a control method applied to any one of the active fog ion generating devices, and the control method comprises the following steps:
acquiring the residual water amount in the water collecting module;
when the residual water amount in the water collection module is larger than a first preset water amount threshold value, disconnecting a power supply circuit of the refrigeration unit, or reducing the power supply voltage or the power supply current of the refrigeration unit;
when the residual water amount in the water collection module is smaller than or equal to a second preset water amount threshold value, a power supply circuit of the refrigeration unit is closed, or the power supply voltage or the power supply current of the refrigeration unit is increased, and the first preset water amount threshold value is larger than the second preset water amount threshold value.
Optionally, the active fog ion generating device further includes an atomizer, the atomizer atomizes the water obtained from the water collecting module, the atomizer includes an atomizing sheet, and the atomizing sheet includes a piezoelectric ceramic sheet and a driving circuit board for driving the piezoelectric ceramic sheet to vibrate; the discharging module comprises an insulating shell, a first opening and a second opening are respectively arranged on two opposite sides of the insulating shell, the honeycomb structure is accommodated in the insulating shell, two ends of the honeycomb holes respectively face to two sides of the insulating shell, the first opening is hermetically connected with an outlet of the atomizer so as to form active fog ions from water atomized by the atomizer, and the second opening is an outlet of the active fog ions; wherein the honeycomb walls of the honeycomb structure are conductive structures;
after acquiring the residual water amount in the water collection module, the method further comprises the following steps:
and when the water amount is less than or equal to a third preset water amount threshold value, closing the driving circuit board and the discharging module in the atomizing sheet.
Optionally, a plurality of layers of the honeycomb structures are arranged in parallel in the insulating housing of the active fog ion generating device from the first opening to the second opening, and the discharge contact is arranged in a honeycomb hole of each layer of the honeycomb structure;
the method further comprises the following steps:
acquiring input of a user;
when the input of the user indicates that the generation efficiency of the active fog ions is reduced, reducing the power supply voltage and/or the power supply current of a driving circuit of an atomizing sheet in the atomizer, reducing the output voltage or the output current of a piezoelectric ceramic booster circuit, or disconnecting a discharge contact in one or more layers of honeycomb structures in the insulating shell from the piezoelectric ceramic booster circuit;
when the input of the user indicates that the generation efficiency of the active fog ions is improved, the power supply voltage and/or the power supply current of a driving circuit of an atomizing sheet in the atomizer are/is improved, the output voltage or the output current of a piezoelectric ceramic booster circuit is improved, or the connection between a discharge contact in one or more layers of honeycomb structures in the insulating shell and the piezoelectric ceramic booster circuit is closed.
The technical scheme of the embodiment of the invention has the following advantages:
1. the active fog ion generating device provided by the embodiment of the invention atomizes water by using high voltage electricity, and has small and uniform atomized particle size and high atomized degree. The atomized liquid drops can be charged and generate negative oxygen ions, hydroxyl free radicals and the like, and the device has the function of purifying microorganisms, particles and harmful gases in the air. A plurality of discharging contacts are arranged through the honeycomb structure, each discharging contact can work independently, and the active fog ion generation efficiency is high. In addition, water in the air is automatically collected through the water collecting module, so that the air humidity is prevented from being too high, water resources can be saved, and manual water adding is not needed.
2. The control method applied to the active fog ion generating device provided by the embodiment of the invention can control the operation of the active fog ion generating device, suspend the water collecting operation of the water collecting module or slow down the water collecting operation of the water collecting module under the condition that the water amount in the water collecting module is sufficient, restart the water collecting operation of the water collecting module or accelerate the water collecting operation of the water collecting module under the condition that the water amount in the water collecting module is insufficient, avoid the influence of excessive collected water on the normal operation of the device, for example, avoid water overflow, and also save electric energy.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic block diagram of a specific example of an active mist ion generating device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a specific example of a discharge module in the embodiment of the present invention;
fig. 3 is a schematic structural view of a specific example of a honeycomb structure in the embodiment of the present invention;
FIG. 4 is a schematic diagram of a guiding structure for guiding water in the water collecting module to the discharging contacts according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another specific example of the discharge module in the embodiment of the present invention;
FIG. 6 is a schematic view of a guiding structure for guiding water in the water collecting module to the atomizing plate in the atomizer according to the embodiment of the present invention;
FIG. 7 is a schematic diagram of a circuit structure of an atomizer for driving a piezoelectric ceramic plate to vibrate according to an embodiment of the present invention;
fig. 8 is a circuit configuration diagram of a specific example of the first power supply circuit in the embodiment of the present invention;
FIG. 9 is a schematic diagram of another circuit structure of the atomizer for driving the piezoelectric ceramic plate to vibrate according to the embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a peripheral circuit of a piezoelectric ceramic transformer of the piezoelectric ceramic booster circuit according to the embodiment of the present invention;
fig. 11 is a flowchart of a specific example of the control method in the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In describing the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and/or "comprising," when used in this specification, are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; the two elements can be directly connected, indirectly connected through an intermediate medium, or communicated with each other inside; either a wireless or a wired connection. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The present embodiment provides an active mist ion generating apparatus, as shown in fig. 1, including: the device comprises a power supply 1, a piezoelectric ceramic booster circuit 2, a water collecting module 3 and a discharging module 4;
the input end of the piezoelectric ceramic booster circuit 2 is connected with the output end of the power supply 1 to boost the voltage output by the power supply 1;
the water collection module 3 comprises a refrigeration unit 31 and a condensation needle 32, wherein the refrigeration unit 31 reduces the temperature of the condensation needle 32 to condense the moisture in the air on the condensation needle 32;
as shown in fig. 2, the discharge module 4 includes a honeycomb structure 41 and a plurality of discharge contacts 42 disposed in a plurality of honeycomb holes 411 of the honeycomb structure 41, and the discharge contacts 42 are electrically connected to an output terminal of the piezoceramic voltage boosting circuit 2 to form water obtained from the water collection module 3 into active mist ions.
Wherein, set up a discharge contact 42 in every honeycomb hole 411, a plurality of discharge contacts 42 can work simultaneously and produce active fog ion, promote active fog ion production efficiency. The condensation needle 32 may be plural.
The active fog ion generating device provided by the embodiment of the invention atomizes water by using high voltage electricity, and has small and uniform atomized particle size and high atomized degree. The atomized liquid drops can be charged and generate negative oxygen ions, hydroxyl free radicals and the like, and the device has the function of purifying microorganisms, particles and harmful gases in the air. By arranging a plurality of discharge contacts 42 through the honeycomb structure 41, each discharge contact 42 can operate independently, and the active mist ion generation efficiency is high. In addition, water in the air is automatically collected through the water collecting module 3, so that the air humidity is prevented from being too high, water resources can be saved, and manual water adding is not needed.
Optionally, as shown in fig. 3, an insulating support 412 whose edge is fixedly connected with the wall of the honeycomb hole 411 is arranged in the honeycomb hole 411 of the honeycomb structure 41, the center of the insulating support 412 is overlapped with the center of the honeycomb hole 411, and the center of the insulating support 412 is provided with a groove 4121, and the fixed end of the discharge contact 42 is tightly connected with the groove 4121.
In this embodiment, the discharge contact 42 is fixed to the center of the honeycomb hole 411 by an insulating support 412.
In addition, all the discharge contacts 42 in the honeycomb structure 41 can be fixed by a honeycomb network structure formed by conductive wires and electrically connected with the output end of the piezoceramic voltage-boosting circuit 2, and the surface of the honeycomb network structure is covered with an insulating layer.
Optionally, each discharge contact 42 is connected to the outlet of a corresponding first capillary 61, and the first capillary 61 guides the water obtained from the water collecting module 3 to the discharge contact 42; alternatively, the first and second electrodes may be,
each of the discharge contacts 42 is connected to one end of a corresponding first cotton thread, which guides the water obtained from the water collection module 3 to the discharge contact 42; alternatively, the first and second electrodes may be,
each discharging contact 42 is connected with one end of a corresponding first water absorbing paper strip, and the first water absorbing paper strip guides water obtained from the water collecting module 3 to the discharging contact 42;
wherein, the honeycomb walls of the honeycomb structure 41 are insulating structures.
In this embodiment, the water is directly guided to the discharge contact 42 and atomized by the high voltage on the discharge contact 42, which is simple in structure. The insulating honeycomb walls prevent interference between adjacent discharge contacts 42.
As shown in fig. 4, taking as an example that the water obtained from the water collection module 3 is guided to the discharge contacts 42 by the first capillary tubes 61, the water collection module 3 includes a water collection tank 34, and when the first capillary tubes 61 are rigid tubes, the water collection tank 34 can be arranged in accordance with the positional arrangement of the discharge contacts 42 (only two first capillary tubes 61 are exemplified in the figure), and one ends of the first capillary tubes 61 communicate with the water collection tank 34, and the other ends thereof are connected to the discharge contacts 42. In this embodiment, the specific water diversion structure can be selected and arranged according to the needs of the shape, size and the like of the product, and is not limited by the illustration in the figure.
Optionally, the device further comprises an atomizer 5, wherein the atomizer 5 atomizes the water obtained from the water collecting module 3;
as shown in fig. 5, the discharge module 4 further includes an insulating housing 43, two opposite sides of the insulating housing 43 are respectively provided with a first opening 431 and a second opening 432, the honeycomb structure 41 is accommodated in the insulating housing, two ends of the honeycomb holes 411 respectively face two sides of the insulating housing, the first opening 431 is hermetically connected with an outlet of the atomizer 5 to form the atomized water of the atomizer 5 into active mist ions, and the second opening 432 is an outlet of the active mist ions;
wherein, the honeycomb walls of the honeycomb structure 41 are conductive structures.
Specifically, as shown in fig. 6, the water collecting module 3 may further include a water collecting tank 34, and water in the water collecting tank 34 may be guided to the corresponding atomizing sheet 51 in the atomizer 5 through a second capillary 62, and then primarily atomized by the atomizing sheet 51 in the atomizer 5. In other alternative embodiments, the water in the water collecting tank 34 can be guided to the atomizing plate 51 through a second cotton thread or a second absorbent paper strip.
In this embodiment, the cell walls of the honeycomb structure 41 serve as one of the electrodes, so that a high voltage electric field can be formed between the discharge contact 42 and the cell walls to activate the atomized water of the atomizer 5.
In this embodiment, the atomizer 5 is used to atomize the water before the discharge module 4 is used to form the active mist ions, so that the energy consumption required by the discharge module 4 in generating the active mist ions can be reduced, and the generation efficiency of the active mist ions can be improved.
Optionally, the refrigeration unit 31 includes a thermoelectric semiconductor refrigeration assembly including two oppositely disposed circuit boards and a thermoelectric element disposed between the two circuit boards, the circuit boards including an insulating board having thermal conductivity and a circuit layer disposed on one side of the insulating board adjacent to the other circuit board;
the cooling pin 32 is connected in contact with one of the two circuit boards for cooling.
Optionally, the atomizer 5 includes a heat conducting plate, the heat conducting plate with two of the refrigeration unit 31 the circuit board contact connection that is used for the heat radiation in the circuit board.
That is, in the present embodiment, the atomizer 5 heat-atomizes the water using the thermal energy radiated from the refrigerating unit 31.
Optionally, the atomizer 5 includes an atomizing sheet 51, the atomizing sheet 51 is connected to an outlet of a corresponding second capillary 62 or one end of a second cotton thread or one end of a second absorbent paper slip, and the second capillary or the second cotton thread or the second absorbent paper slip is used for guiding the water obtained from the water collecting module 3 to the atomizing sheet 51;
the atomizing plate 51 includes a piezoelectric ceramic plate and a driving circuit board for driving the piezoelectric ceramic plate to vibrate, as shown in fig. 7, the circuit structure on the driving circuit board includes:
a first operational amplifier U1, a second operational amplifier U2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a first field-effect transistor Q1, a second field-effect transistor Q2, a third field-effect transistor Q3, a fourth field-effect transistor Q4, a fifth field-effect transistor Q5 and a first capacitor C1;
the non-inverting input end of the first operational amplifier U1 is connected to the output end of the power supply 1, the inverting input end of the first operational amplifier U1 is connected to the ground through the first resistor R1, the output end of the first operational amplifier U1 is connected to the non-inverting input end of the second operational amplifier U2, the second resistor R2 is arranged between the inverting input end and the output end of the first operational amplifier U1, one end of the third resistor R3 and the fourth resistor R4 and the drain of the first field effect transistor Q1 are respectively connected to the output end of the first power supply circuit, the other end of the third resistor R3 is respectively connected to one end of the fifth resistor R5 and the gate of the second field effect transistor Q2, the other end of the fifth resistor R5 is connected to the ground, the other end of the fourth resistor R4 is connected to the drain of the second field effect transistor Q2, and the source of the second field effect transistor Q2 is respectively connected to the gate of the first field effect transistor Q1, The drain of the third fet Q3 is connected, the source of the second fet Q2 is further connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to one end of the seventh resistor R7 and the gate of the third fet Q3, the other end of the seventh resistor R7 is connected to the source of the third fet Q3, the drain of the fourth fet Q4 and the gate of the fifth fet Q5, and the fourth fet Q3583 is connected to the drain of the fourth fet Q3 and the gate of the fifth fet Q5, respectivelyA gate of the effect transistor Q4 is connected to an output terminal of the second operational amplifier U2, a drain of the fifth field effect transistor Q5 is connected to a source of the first field effect transistor Q1, a source of the fourth field effect transistor Q4 and a source of the fifth field effect transistor Q5 are both grounded, a drain of the fifth field effect transistor Q5 is also grounded through the eighth resistor R8 and the first capacitor C1 which are connected in parallel, and a drain of the fifth field effect transistor Q5 is used as an output terminal V of the circuit structureout1And the reverse input end of the second operational amplifier U2 is connected with the piezoelectric ceramic plate and is grounded through the ninth resistor R9.
The circuit structure in this embodiment can provide stable power for the piezoceramics piece, improves the stability of piezoceramics piece vibration to make the atomizing more even.
Further optionally, as shown in fig. 8, the first power circuit may specifically include a first switch tube Q12, a second switch tube Q13, a second inductor L2, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a second diode D2, and a third diode D3; one end of the second inductor L2 and one end of the sixth capacitor C6 are connected to the output terminal of the power supply 1, the other end of the second inductor L2 is connected to the anode of the second diode D2 and one end of the first switching tube Q12, the cathode of the second diode D2 is connected to the other end of the first switching tube Q12 through the seventh capacitor C7, the other end of the first switching tube Q12 is further grounded through the second switching tube Q13, the cathode of the second diode D2 is further connected to the anode of the third diode D3, the other end of the sixth capacitor C6 is connected to the cathode of the third diode D3, one end of the eighth capacitor C8 is connected to the cathode of the third diode D3, the other end is grounded, and the cathode of the third diode D3 is used as the output terminal V of the first power supply circuitout3。
As an alternative embodiment, as shown in fig. 9, the circuit structure on the driving circuit board may further include:
a third operational amplifier U3, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a fourth capacitor C4, a fifth capacitor C5, a tenth field effect transistor Q10, an eleventh field effect transistor Q11 and a second power supply E2;
a forward input end of the third operational amplifier U3 is connected to an output end of the power supply 1 through the tenth resistor R10, a reverse input end of the operational amplifier is connected to ground through the eleventh resistor R11, an output end of the operational amplifier is connected to the gate of the tenth fet Q10 and the drain of the eleventh fet Q11 through the twelfth resistor R12, the drain of the tenth fet Q10 is connected to the positive electrode of the second power supply E2, the source of the tenth fet Q10 is connected to the gate of the eleventh fet Q11, two ends of the thirteenth resistor R13 are connected to the gate and the source of the eleventh fet Q11, the source of the eleventh fet Q11 is connected to ground, the fourteenth resistor R14 and the fourth capacitor C4 are connected to the second power supply E2 in parallel, and a negative electrode of the second power supply E2 is connected to one end of the fifteenth resistor R15, One end of a fifth capacitor C5 is connected, the other end of the fifteenth resistor R15 is connected with the positive input end of the operational amplifier, the other end of the fifth capacitor C5 is grounded, and the connection position of the fifteenth resistor R15 and the fifth capacitor C5 is used as the output end V of the circuit structureout2And the piezoelectric ceramic plate is connected with the piezoelectric ceramic plate.
In other optional specific embodiments, when the atomizer 5 atomizes the water obtained from the water collecting module 3, the water is obtained from the water collecting module 3 and the compressed air is obtained from the compressed air storage module or the compressed air machine, and then the obtained water and the compressed air are atomized.
Alternatively, as shown in fig. 5, a plurality of layers of the honeycomb structures 41 are juxtaposed in the direction from the first opening to the second opening in the insulating housing 43, and the discharge contacts 42 are disposed in the honeycomb holes 411 of each layer of the honeycomb structures 41.
This embodiment can further improve the generation efficiency of the mist ions and can also improve the activation degree of the mist ions.
Optionally, the piezoelectric ceramic booster circuit 2 includes a piezoelectric ceramic transformer T1 and a peripheral circuit;
as shown in fig. 10, the peripheral circuit includes a sixth fet Q6, a seventh fet Q7, an eighth fet Q8, a ninth fet Q9, a first inductor L1, a second capacitor C2, a third capacitor C3, and a first diode D1;
a drain of the sixth fet Q6 and a drain of the seventh fet Q7 are connected to an output terminal of the power supply 1, a source of the sixth fet Q6 is connected to a drain of the eighth fet Q8, a source of the seventh fet Q7 is connected to a drain of the ninth fet Q9, a source of the eighth fet Q8 and a source of the ninth fet Q9 are grounded, a source of the sixth fet Q6 is further connected to one end of the first inductor L1, the other end of the first inductor L1 is connected to one end of the second capacitor C2 and a negative electrode of the third capacitor C3, a source of the seventh fet Q7 is further connected to the other end of the second capacitor C2, an anode of the first diode D1 is connected to an anode of the third capacitor C3, an anode of the third capacitor C3 and a drain of the ninth fet Q9 are connected to both ends of the ceramic 1, the joint of the first inductor L1 and the second capacitor C2 is the output end V of the piezoceramic voltage boost circuit 2out4. The piezoelectric ceramic booster circuit 2 is connected with the discharge module 4 (specifically, the discharge contact 42) through a rectifying circuit.
The peripheral circuit is used for providing sine wave signals with the frequency consistent with the resonant frequency of the piezoelectric ceramic transformer.
In this embodiment, the sixth field-effect transistor Q6, the seventh field-effect transistor Q7, the eighth field-effect transistor Q8, and the ninth field-effect transistor Q9 form two pairs of bridge arms, the pair of bridge arms are simultaneously turned on, the two pairs of bridge arms are complementarily turned on and off, and the frequency of the output electrical signal can be adjusted by changing the on-off frequency of the two pairs of bridge arms.
The piezoelectric ceramic component comprises a plurality of layers of piezoelectric ceramic pieces, each layer of piezoelectric ceramic pieces are fixedly provided with output electrodes on the outer side walls and fixedly provided with input electrodes on the upper surface and the lower surface, the output electrodes of the piezoelectric ceramic pieces are electrically connected and adjacent to the input electrodes, and the adjacent input electrodes on the piezoelectric ceramic pieces are in contact connection.
Further optionally, a DC/DC conversion circuit is further disposed between the power supply 1 and the peripheral circuit to adjust a supply voltage of the peripheral circuit.
Optionally, the water collecting module 3 further includes a water collecting tank 34, and the water collecting tank 34 collects water condensed on the condensation needle 32. The water in the water collection tank 34 can then be guided to the discharge contacts 42 by means of the first capillary 61, the first cotton thread or the first absorbent paper strip. Alternatively, the water in the water collection tank 34 is guided to the atomization sheet 51 through the second capillary tube 62 or the second cotton thread or the second water-absorbent paper strip.
An embodiment of the present invention further provides a control method, which is applied to any one of the active mist ion generating apparatuses described above, as shown in fig. 11, where the control method includes:
s1: acquiring the amount of water left in the water collecting module 3;
s2: when the amount of water remaining in the water collection module 3 is greater than a first preset water amount threshold, disconnecting the power supply circuit of the refrigeration unit 31, or reducing the power supply voltage or power supply current of the refrigeration unit 31;
s3: when the amount of water remaining in the water collection module 3 is less than or equal to a second preset water amount threshold, the power supply circuit of the refrigeration unit 31 is closed, or the power supply voltage or the power supply current of the refrigeration unit 31 is increased, and the first preset water amount threshold is greater than the second preset water amount threshold.
Specifically, the power supply circuit of the refrigeration unit 31 may be closed when the amount of water remaining in the water collection module 3 is greater than a first preset water amount threshold, and then the power supply circuit of the refrigeration unit 31 may be closed when the amount of water remaining in the water collection module 3 is less than or equal to a second preset water amount threshold; alternatively, when the amount of water remaining in the water collection module 3 is greater than the first preset water amount threshold, the supply voltage or the supply current of the refrigeration unit 31 may be reduced, and then, when the amount of water remaining in the water collection module 3 is less than or equal to the second preset water amount threshold, the supply voltage or the supply current of the refrigeration unit 31 may be increased.
The control method applied to the active fog ion generating device provided by the embodiment of the invention can control the operation of the active fog ion generating device, suspend the water collecting operation of the water collecting module 3 or slow down the water collecting operation of the water collecting module 3 under the condition that the water amount in the water collecting module 3 is sufficient, restart the water collecting operation of the water collecting module 3 or accelerate the water collecting operation of the water collecting module 3 under the condition that the water amount in the water collecting module 3 is insufficient, avoid the influence of the excessive collected water on the normal operation of the device, for example, avoid the overflow of the water, and save the electric energy.
That is to say, the active fog ion generating device further includes a control module and a water detecting module connected to the control module, the water detecting module is configured to detect the amount of water remaining in the water collecting module 3 (specifically, may be configured to detect the amount of water remaining in the water collecting tank 34), the control module is further connected to the power supply circuit of the refrigerating unit 31, the control module is configured to disconnect the power supply circuit of the refrigerating unit 31 or reduce the power supply voltage or power supply current of the refrigerating unit 31, that is, reduce the current or voltage of the power supply circuit of the refrigerating unit 31, when the amount of water is greater than a first preset water amount threshold, the control module is further configured to close the power supply circuit of the refrigerating unit 31 or increase the power supply voltage or power supply current of the refrigerating unit 31, when the amount of water is less than or equal to a second preset water amount threshold, i.e. to increase the current or voltage of the power supply circuit of the refrigeration unit 31. The power supply circuit of the refrigeration unit 31 may be the piezoelectric ceramic booster circuit 2, and specifically, the power supply input end of the refrigeration unit 31 is connected to the output end of the piezoelectric ceramic booster circuit 2.
Optionally, the active fog ion generating device further includes an atomizer 5, the atomizer 5 atomizes the water obtained from the water collecting module 3, the atomizer 5 includes an atomizing sheet 51, the atomizing sheet 51 includes a piezoelectric ceramic sheet and a driving circuit board for driving the piezoelectric ceramic sheet to vibrate; the discharge module 4 comprises an insulating shell 43, two opposite sides of the insulating shell 43 are respectively provided with a first opening and a second opening, the honeycomb structure 41 is accommodated in the insulating shell 43, two ends of the honeycomb holes respectively face two sides of the insulating shell 43, the first opening is hermetically connected with an outlet of the atomizer 5 so as to form active mist ions from water atomized by the atomizer 5, and the second opening is an outlet of the active mist ions; wherein, the honeycomb walls of the honeycomb structure 41 are conductive structures;
after acquiring the amount of water remaining in the water collection module 3, the method further includes:
and when the water amount is less than or equal to a third preset water amount threshold value, closing the driving circuit board and the discharge module 4 in the atomization sheet 51.
The control module is further configured to close the driving circuit board and the discharge module 4 in the atomization sheet 51 when the water amount is less than or equal to a third preset water amount threshold. Specifically, the driving circuit of the atomizing sheet 51 in the atomizer 5 and the power supply circuit of the discharge module 4 may be disconnected (i.e., the connection between the discharge module 4 and the piezoelectric ceramic booster circuit 2 is disconnected). When the amount of water remaining in the water collection module 3 is less than or equal to the third preset water amount threshold, it indicates that the water supply is seriously insufficient, and in order to avoid the idle work of the atomization plate 51 and the discharge module 4 in the atomizer 5 and waste energy, the atomization plate 51 and the discharge module 4 in the atomizer 5 can be turned off. Wherein the second preset water volume threshold may be greater than the third preset water volume threshold.
Optionally, a plurality of layers of the honeycomb structures 41 are arranged in parallel in the direction from the first opening to the second opening in the insulating housing 43 of the active fog ion generating device, and the discharge contact 42 is arranged in a honeycomb hole of each layer of the honeycomb structure 41;
the method further comprises the following steps:
acquiring input of a user;
when the input of the user indicates that the generation efficiency of the active mist ions is reduced, reducing the power supply voltage and/or the power supply current of the driving circuit of the atomizing sheet 51 in the atomizer 5, reducing the output voltage or the output current of the piezoelectric ceramic booster circuit 2, or disconnecting the discharge contact 42 in the one or more layers of the honeycomb structures 41 in the insulating housing 43 from the piezoelectric ceramic booster circuit 2;
when the input of the user indicates that the active mist ion generation efficiency is improved, the power supply voltage and/or the power supply current of the driving circuit of the atomizing sheet 51 in the atomizer 5 is increased, the output voltage or the output current of the piezoelectric ceramic booster circuit 2 is increased, or the connection between the discharge contact 42 in the one or more layers of the honeycomb structures 41 in the insulating housing 43 and the piezoelectric ceramic booster circuit 2 is closed.
The active fog ion generating device may further include a user input module, the user input module receives a user input for adjusting the active fog ion generating efficiency, the user input module is connected to the control module, the control module adjusts the working power of the atomizer 5 in the atomizer 5 according to the user input, and specifically may adjust the power supply voltage and/or the power supply current of the driving circuit of the atomizing sheet 51 in the atomizer 5, the control module may also adjust the output voltage or the output current of the piezoceramic voltage boost circuit 2 according to the user input, or adjust the working state of the discharge contact 42 in each layer of the honeycomb structure 41 in the discharge module 4, and specifically, when the user input indicates that the active fog ion generating efficiency is reduced, reduces the power supply voltage and/or the power supply current of the driving circuit of the atomizing sheet 51 in the atomizer 5, reducing the output voltage or the output current of the piezoelectric ceramic booster circuit 2, or disconnecting the discharge contact 42 in one or more layers of honeycomb structures 41 in the discharge module 4 from the piezoelectric ceramic booster circuit 2; when the user inputs an instruction to improve the generation efficiency of the active mist ions, the supply voltage and/or the supply current of the driving circuit of the atomizing sheet 51 in the atomizer 5 are/is increased, the output voltage or the output current of the piezoelectric ceramic booster circuit 2 is increased, or the connection between the discharge contact 42 in the one or more layers of the honeycomb structures 41 in the discharge module 4 and the piezoelectric ceramic booster circuit 2 is closed.
The active fog ion generating device can further comprise an oscillator used for controlling the on and off of Q6, Q7, Q8 and Q9 according to the resonant frequency of the piezoelectric ceramic transformer T1, and the control module is also used for controlling the on and off of Q6, Q7, Q8 and Q9 according to the resonant frequency of the piezoelectric ceramic transformer T1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. An active mist ion generating device, comprising: the device comprises a power supply, a piezoelectric ceramic booster circuit, a water collecting module and a discharging module;
the input end of the piezoelectric ceramic booster circuit is connected with the output end of the power supply to boost the voltage output by the power supply;
the water collecting module comprises a refrigerating unit and a condensation needle, wherein the refrigerating unit reduces the temperature of the condensation needle to condense moisture in the air on the condensation needle;
the discharging module comprises a honeycomb structure and a plurality of discharging contacts arranged in a plurality of honeycomb holes of the honeycomb structure, the discharging contacts are electrically connected with the output end of the piezoelectric ceramic booster circuit, and water obtained from the water collecting module is formed into active fog ions.
2. The device of claim 1, wherein each of said discharge contacts is connected to a corresponding first capillary outlet, said first capillary directing water obtained from said water collection module to said discharge contacts; alternatively, the first and second electrodes may be,
each discharging contact is connected with one end of a corresponding first cotton thread, and the first cotton thread guides water obtained from the water collecting module to the discharging contact; alternatively, the first and second electrodes may be,
each discharging contact is connected with one end of a corresponding first water absorbing paper strip, and the first water absorbing paper strips guide water obtained from the water collecting module to the discharging contacts;
wherein, the honeycomb wall of the honeycomb structure is an insulating structure.
3. The device of claim 1, further comprising an atomizer that atomizes water obtained from the water collection module;
the discharging module comprises an insulating shell, a first opening and a second opening are respectively arranged on two opposite sides of the insulating shell, the honeycomb structure is accommodated in the insulating shell, two ends of the honeycomb holes respectively face to two sides of the insulating shell, the first opening is hermetically connected with an outlet of the atomizer so as to form active mist ions from water atomized by the atomizer, and the second opening is an outlet of the active mist ions;
wherein, the honeycomb wall of the honeycomb structure is a conductive structure.
4. The apparatus of claim 3, wherein said refrigeration unit includes a thermoelectric semiconductor refrigeration assembly including two oppositely disposed circuit boards and a thermoelectric element disposed between said two circuit boards, said circuit boards including an insulating board having thermal conductivity and a circuit layer disposed on said insulating board on a side adjacent to the other of said circuit boards;
the condensation pin is in contact connection with one of the two circuit boards for cooling.
5. The device according to claim 4, characterized in that the atomizer comprises a thermally conductive plate which is in contact connection with one of the two circuit boards of the refrigeration unit for heat radiation.
6. The device of claim 3, wherein the atomizer comprises an atomizing plate connected to one end of a corresponding second capillary outlet or second cotton thread or second absorbent paper strip for guiding water obtained from the water collection module to the atomizing plate;
the atomizing piece includes piezoceramics piece and is used for the drive piezoceramics piece vibrated's drive circuit board, the last circuit structure of drive circuit board includes:
the circuit comprises a first operational amplifier, a second operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first field-effect tube, a second field-effect tube, a third field-effect tube, a fourth field-effect tube, a fifth field-effect tube and a first capacitor;
the in-phase input end of the first operational amplifier is connected with the output end of the power supply, the reverse input end of the first operational amplifier is grounded through the first resistor, the output end of the first operational amplifier is connected with the in-phase input end of the second operational amplifier, the second resistor is arranged between the reverse input end and the output end of the first operational amplifier, one end of the third resistor and one end of the fourth resistor and the drain electrode of the first field-effect tube are respectively connected with the output end of the first power circuit, the other end of the third resistor is respectively connected with one end of the fifth resistor and the grid electrode of the second field-effect tube, the other end of the fifth resistor is grounded, the other end of the fourth resistor is connected with the drain electrode of the second field-effect tube, the source electrode of the second field-effect tube is respectively connected with the grid electrode of the first field-effect tube and the drain electrode of the third field-effect tube, and the source electrode of the second field-effect tube is also connected with one end of the sixth resistor, the other end of the sixth resistor is respectively connected with one end of the seventh resistor and the grid electrode of the third field effect transistor, the other end of the seventh resistor is respectively connected with the source electrode of the third field effect transistor, the drain electrode of the fourth field effect transistor and the grid electrode of the fifth field effect transistor, the grid electrode of the fourth field effect transistor is connected with the output end of the second operational amplifier, the drain electrode of the fifth field effect transistor is connected with the source electrode of the first field effect transistor, the source electrode of the fourth field effect transistor and the source electrode of the fifth field effect transistor are both grounded, the drain electrode of the fifth field effect transistor is also grounded through the eighth resistor and the first capacitor which are connected in parallel, and the drain electrode of the fifth field effect transistor is used as the output end of the circuit structure and is connected with the piezoelectric ceramic piece, and the reverse input end of the second operational amplifier is grounded through the ninth resistor.
7. The apparatus of claim 3, wherein a plurality of layers of the honeycomb structures are juxtaposed in the insulating housing from the first opening to the second opening, and the discharge contact is disposed in a honeycomb hole of each layer of the honeycomb structures.
8. A control method applied to the active mist ion generating apparatus according to any one of claims 1 to 7, the control method comprising:
acquiring the residual water amount in the water collecting module;
when the residual water amount in the water collection module is larger than a first preset water amount threshold value, disconnecting a power supply circuit of the refrigeration unit, or reducing the power supply voltage or the power supply current of the refrigeration unit;
when the residual water amount in the water collection module is smaller than or equal to a second preset water amount threshold value, a power supply circuit of the refrigeration unit is closed, or the power supply voltage or the power supply current of the refrigeration unit is increased, and the first preset water amount threshold value is larger than the second preset water amount threshold value.
9. The method of claim 8, wherein the active mist ion generating device further comprises an atomizer, the atomizer atomizes the water obtained from the water collecting module, the atomizer comprises an atomizing sheet, and the atomizing sheet comprises a piezoelectric ceramic sheet and a driving circuit board for driving the piezoelectric ceramic sheet to vibrate; the discharging module comprises an insulating shell, a first opening and a second opening are respectively arranged on two opposite sides of the insulating shell, the honeycomb structure is accommodated in the insulating shell, two ends of the honeycomb holes respectively face to two sides of the insulating shell, the first opening is hermetically connected with an outlet of the atomizer so as to form active fog ions from water atomized by the atomizer, and the second opening is an outlet of the active fog ions; wherein the honeycomb walls of the honeycomb structure are conductive structures;
after acquiring the residual water amount in the water collection module, the method further comprises the following steps:
and when the water amount is less than or equal to a third preset water amount threshold value, closing the driving circuit board and the discharging module in the atomizing sheet.
10. The method of claim 9, wherein a plurality of layers of said honeycomb structures are juxtaposed in said insulating housing of said active mist ion generating device in a direction from said first opening to said second opening, said discharge contacts being disposed in the honeycomb holes of each layer of said honeycomb structures;
the method further comprises the following steps:
acquiring input of a user;
when the input of the user indicates that the generation efficiency of the active fog ions is reduced, reducing the power supply voltage and/or the power supply current of a driving circuit of an atomizing sheet in the atomizer, reducing the output voltage or the output current of a piezoelectric ceramic booster circuit, or disconnecting a discharge contact in one or more layers of honeycomb structures in the insulating shell from the piezoelectric ceramic booster circuit;
when the input of the user indicates that the generation efficiency of the active fog ions is improved, the power supply voltage and/or the power supply current of a driving circuit of an atomizing sheet in the atomizer are/is improved, the output voltage or the output current of a piezoelectric ceramic booster circuit is improved, or the connection between a discharge contact in one or more layers of honeycomb structures in the insulating shell and the piezoelectric ceramic booster circuit is closed.
CN202210317554.9A 2022-03-29 2022-03-29 Active fog ion generating device and control method thereof Active CN114421286B (en)

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