CN115525007A - Piezoelectric ceramic negative oxygen ion generator - Google Patents
Piezoelectric ceramic negative oxygen ion generator Download PDFInfo
- Publication number
- CN115525007A CN115525007A CN202211154866.9A CN202211154866A CN115525007A CN 115525007 A CN115525007 A CN 115525007A CN 202211154866 A CN202211154866 A CN 202211154866A CN 115525007 A CN115525007 A CN 115525007A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- piezoelectric ceramic
- output
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 66
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 25
- 239000001301 oxygen Substances 0.000 title claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 150000002500 ions Chemical class 0.000 claims description 32
- -1 oxygen ion Chemical class 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 11
- 150000001450 anions Chemical class 0.000 claims description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 206010014357 Electric shock Diseases 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 13
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical class [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 208000013738 Sleep Initiation and Maintenance disease Diseases 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000000467 autonomic pathway Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 206010022437 insomnia Diseases 0.000 description 1
- 230000004199 lung function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003860 sleep quality Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The invention discloses a piezoelectric ceramic negative oxygen ion generator which comprises a negative ion generating module and a shell, wherein the negative ion generating module comprises a PCB (printed circuit board) control board, a piezoelectric ceramic transformer and a negative ion output carbon brush, and the PCB control board comprises an MUC (multi-purpose processor), an oscillating circuit, a driving circuit, a voltage doubling circuit and an energy feedback circuit. The invention belongs to the technical field of negative ion generators, and particularly provides a piezoelectric ceramic negative oxygen ion generator which adjusts PWM (pulse-width modulation) output frequency through feedback detection of direct-current high-voltage output voltage, prevents electric shock risk of a human body, has constant output power at a high-voltage end, has the advantages of small volume, high isolation voltage, safety and reliability, has wider applicability, and improves the reliability and stability of the negative ion generator.
Description
Technical Field
The invention belongs to the technical field of negative ion generators, is mainly applied to household air purifiers, household air conditioners, refrigerators, automobile air purification, medical negative oxygen ion auxiliary treatment equipment and the like, and particularly relates to a piezoelectric ceramic negative oxygen ion generator integrating feedback control and adjustable frequency.
Background
Because the air pollution is more and more serious nowadays, particulate matters, particles, dust and viruses in the air are more and more serious, and the human health is seriously influenced. The air negative ions are also called negative oxygen ions, and refer to oxygen ions with 1 or more than 1 electron with negative charges. Researches show that the high-concentration negative oxygen ions have excellent effects of purifying and removing dust, can effectively improve the immunity of human bodies, and can effectively settle air dust, bacteria and the like to achieve the aim of purifying air.
The negative oxygen ions are rapidly diffused to the surrounding space under the action of a strong negative electric field. During the process of releasing negative charges to the surrounding air, the negative charges can quickly neutralize floating matters such as dust floats, bacteria and the like with positive charges, so that the floating matters are changed into neutral substances, and particulate matters, dust and viruses are quickly settled. Can effectively improve the sleep quality of a human body, improve the lung function, effectively reduce blood sugar, enhance the disease resistance, maintain the important autonomic nerve function balance of the human body by negative oxygen ions and effectively treat insomnia caused by over-mental stress.
Most negative ion generators on the market all adopt high-voltage package coil to produce direct current high voltage in the twinkling of an eye, after through the rectification double voltage, output the negative high voltage of fixed voltage, discharge to the air through discharging, do not have energy feedback safety control circuit. Because of the structure and manufacturing process problems of the high-voltage coil, the insulation voltage is only about 1500v, breakdown short circuit is easy to occur between turns of the high-voltage coil, but the voltage of air negative ions is required to be obtained, and the voltage is more than 3500v, so that the transformer with the high winding turn ratio is easy to generate heat and cause the breakdown of the coil leakage point when in work. In the process of voltage coupling, a high-voltage breakdown leakage phenomenon can be generated, a certain high-voltage alternating current is generated and is released into the air through a rectifier diode, and an ozone derivative can be generated due to the fact that the alternating current discharges into the air, so that electric shock hazard is caused to a human body and surrounding electrical equipment, the human body is easy to generate electric shock risks, and the power of a negative ion generator is uncontrollable.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the piezoelectric ceramic negative oxygen ion generator which adjusts the PWM output frequency through the feedback detection of the direct-current high-voltage output voltage, prevents the risk of electric shock of a human body, has constant output power of a high-voltage end, has the advantages of small volume, high isolation voltage, safety, reliability and wider applicability, and improves the reliability and stability of the negative ion generator.
The technical scheme adopted by the invention is as follows: the invention relates to a piezoelectric ceramic negative oxygen ion generator which comprises a negative ion generating module and a shell, wherein the shell is provided with an air inlet and an air outlet, the negative ion generating module is arranged in the shell, and the negative ion generating module is arranged at the air outlet of the shell; the negative ion generating module comprises a PCB control board, a piezoelectric ceramic transformer and a negative ion output carbon brush, wherein the piezoelectric ceramic transformer is connected with the output end of the PCB control board, the piezoelectric ceramic transformer is used for converting alternating current generated by the PCB control board into direct current high voltage, the negative ion output carbon brush is connected with the output end of the piezoelectric ceramic transformer through a wire, and the negative ion output carbon brush outputs negative ions to the outside to the air.
As a preferred scheme, the PCB control panel comprises a top plate, a middle plate and a bottom plate, wherein the top plate is formed by pressing a conductive silver paste layer and a ceramic wafer, a piece of conductive silver paste with a fixed shape is sintered on the high-insulation ceramic wafer and is connected with the high-insulation ceramic wafer through a via hole conductive probe, the middle plate is a middle conductive layer, the middle conductive layer is a conductive copper coating layer, the middle conductive layer is a bonding pad position where a lead is connected to the bottom plate through a via hole, a resistance voltage division circuit is arranged on the bottom plate, a resistance voltage division effect is achieved through the resistance voltage division circuit, current is converted into voltage, and the voltage is connected to an ADC sampling port along with a variable voltage signal Vout of Vin.
Vout = Vin/(R1 + R2) × R2, where Vout can be calculated.
Furthermore, the PCB control board comprises an MUC, an oscillating circuit, a driving circuit, a voltage doubling circuit and an energy feedback circuit;
the utility model discloses an energy feedback circuit, including drive module, oscillating circuit, drive module, voltage doubling circuit, energy feedback circuit, MUC, oscillating circuit is connected with MUC, oscillating circuit's output is connected with drive circuit's input, drive circuit is used for producing alternating voltage, drive circuit's output and piezoceramics transformer are connected, piezoceramics transformer is used for producing pure sine wave under the alternating voltage effect that drive module produced, voltage doubling circuit's input is connected with piezoceramics transformer's output, energy feedback circuit one end is connected with oscillating circuit, energy feedback circuit's the other end and voltage doubling circuit are connected, voltage doubling circuit be used for with piezoceramics transformer's output voltage enlargies once more, and passes through anion output carbon brush exports the anion to the air in to the outer.
Further, when the piezoelectric ceramic transformer discharges air, if a conductor is close to the piezoelectric ceramic transformer, voltage changes along with the close of the conductor, and the voltage on the conductive silver paste also changes. MUC reads the data change through inside ADC, reaches certain threshold value after, MCU can close PWM output to the danger of protection near human body by the electric shock.
Furthermore, the PCB control panel is formed by laminating a top plate, a middle plate and a bottom plate, and is manufactured by adopting a gold immersion process.
In a preferable scheme, the negative ion output carbon brush is a conductive carbon brush.
The scheme is a piezoelectric ceramic negative oxygen ion generator, which is mainly used for solving the problems of uncontrollable power and electric leakage of the negative oxygen ion generator in the prior art, and the piezoelectric ceramic negative oxygen ion generator adopting the structure has the following beneficial effects:
1. and (3) integrally binding and packaging the MCU processor and the piezoelectric ceramic transformer by applying a chip SOP packaging technology. Then, the feedback magnetic stripe circuit designed by the scheme feeds back the voltage to an analog-to-digital conversion ADC input port of the MCU processor, and carries out direct-current high-voltage output voltage feedback detection to adjust PWM output frequency. The human body electric shock risk is prevented, and meanwhile, the output power of the high-voltage end is kept constant. The device has the advantages of small volume, high isolation voltage, safety and reliability. Because the isolation performance is good, positive charge aggregation can not be generated, the conversion efficiency is improved, and the device can be embedded into any household appliance application product.
2. The piezoelectric ceramic transformer is characterized in that the characteristics of positive and inverse piezoelectric effects of a piezoelectric ceramic material are utilized, the orientation characteristics of electrodes and polarization directions of the piezoelectric ceramic body are designed, the inverse piezoelectric effect is utilized to enable the piezoelectric ceramic body connected with an input end to generate mechanical vibration under the action of voltage, then the positive piezoelectric effect enables the piezoelectric ceramic body connected with an output end to generate voltage, an MCU is used for driving the piezoelectric ceramic transformer through outputting a PWM waveform with variable frequency, a driving sine wave with certain frequency is generated, mechanical energy is converted into electric energy, and the electric energy is output to a discharge carbon brush after being rectified and multiplied by a high-voltage silicon stack to discharge air, and the piezoelectric ceramic transformer has high insulativity, reliability and zero attenuation characteristics. The problem that ozone derivatives are generated due to alternating current leakage when negative ions are generated is solved very ingeniously, and the reliability and the stability of the negative ion generator are improved.
3. The design of energy feedback circuit, under the condition that ionized air produced the anion, when the people was close to the end of discharging, because the human body has conductive property, high voltage output end voltage changes, feedback circuit read voltage through MCU and judge whether there is the conductor to be close to, turn-off high voltage output that can be quick, effectual protection is personal and equipment safety.
Drawings
FIG. 1 is a schematic diagram of a negative ion generating module according to the present embodiment;
FIG. 2 is a schematic diagram of the principle of the piezoelectric ceramic negative oxygen ion generator in the scheme;
FIG. 3 is a schematic circuit diagram of a driving circuit of a piezoelectric ceramic transformer in the present embodiment;
FIG. 4 is a schematic diagram of a circuit for outputting a PWM signal to tell optical coupler isolation in the scheme;
fig. 5 is a schematic circuit diagram of the MCU in the present embodiment.
Wherein, 1, a top layer plate, 2, a middle layer plate, 3 and a bottom layer plate.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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.
As shown in fig. 1-5, the piezoelectric ceramic negative oxygen ion generator of the present invention comprises a negative ion generating module and a housing, wherein the housing is provided with an air inlet and an air outlet, the negative ion generating module is arranged in the housing, and the negative ion generating module is arranged at the air outlet of the housing; the negative ion generating module comprises a PCB control board, a piezoelectric ceramic transformer and a negative ion output carbon brush, wherein the piezoelectric ceramic transformer is connected with the output end of the PCB control board, the piezoelectric ceramic transformer is used for converting alternating current generated by the PCB control board into direct current high voltage, the negative ion output carbon brush is connected with the output end of the piezoelectric ceramic transformer through a wire, and the negative ion output carbon brush outputs negative ions to the outside to the air.
As shown in fig. 1, the PCB control board includes a top plate, a middle plate and a bottom plate, the top plate is formed by pressing a conductive silver paste layer and a ceramic wafer, a conductive silver paste layer with a fixed shape is sintered on the high-insulation ceramic wafer and connected to the high-insulation ceramic wafer through a via hole conductive probe, the middle plate is a middle conductive layer, the middle conductive layer is a conductive copper clad layer, the middle conductive layer is a bonding pad position where a wire is connected to the bottom plate through a via hole, a resistance voltage dividing circuit is arranged on the bottom plate, the resistance voltage dividing effect is achieved through the resistance voltage dividing circuit, current is converted into voltage, and the voltage is connected to an ADC sampling port along with a voltage signal Vout with variable Vin. The PCB control panel is formed by laminating a top plate, a middle plate and a bottom plate, and is manufactured by a gold immersion process.
As shown in fig. 2-3, the PCB control board includes a MUC, an oscillation circuit, a driving circuit, a voltage doubling circuit, and an energy feedback circuit;
the utility model discloses a drive circuit, including drive module, drive circuit, drive module, oscillating circuit, drive circuit's output and piezoelectric ceramic transformer, piezoelectric ceramic transformer is used for producing pure sine wave under the alternating voltage effect that drive module produced, voltage doubling circuit's input and piezoelectric ceramic transformer's output are connected, energy feedback circuit one end is connected with oscillating circuit, energy feedback circuit's the other end and voltage doubling circuit are connected, voltage doubling circuit be used for with piezoelectric ceramic transformer's output voltage enlargies once more, and through anion output carbon brush exports the anion to the air in.
Vout = Vin/(R1 + R2) × R2, and Vout can be calculated from the input voltage and the resistance values of R1 and R2.
In an embodiment, when the piezoelectric ceramic transformer discharges air, if there are conductors close to each other, the voltage changes along with the approach of the conductors, and the voltage passing through the conductive silver paste also changes.
MUC reads the data change through inside ADC, reaches certain threshold value after, MCU can close PWM output to the danger of protection near human body by the electric shock.
As shown in fig. 3, the circuit further includes a delay driving circuit based on the above, the delay starting circuit is composed of F1, R12, Q2, Q3, and R20, when 12V is supplied, because the internal resistance of the piezoelectric ceramic transformer is small, if the MCU does not normally output the PWM control waveform, the starting current is too large, and F1 is self-recovery fuse overheat protection. The starting time of the Q3 is controlled by the MCU to realize delayed starting, after the MCU works normally, PWM output is configured firstly, after software delays for 1.5s, high level is output, and the Q3 is started to conduct the PMOS tube Q2 to supply power for the piezoelectric ceramic transformer. Therefore, the damage to the piezoelectric ceramics caused by overlarge current at the moment of electrifying is effectively avoided, the service life is prolonged, and the reliability of the whole circuit is improved. High-voltage Feedback signals in the energy Feedback circuit sequentially pass through R14, D3 and Q4, the back voltage stabilization is about 6.2V, the base voltage of a protection switch triode Q4 cannot be damaged due to overvoltage, after the piezoelectric ceramic piece outputs high voltage, Q4 is conducted, the Feedback point R11 output end Feedback is changed into low level from high level, the MCU reads the voltage and is used for judging whether the ceramic piece is normally started, if not, the MCU gives a low level signal to the base of Q3, the piezoelectric ceramic is turned off to supply power, and the whole circuit is protected.
As shown in fig. 4, after the PWM signal is output by the MCU and passes through the high-speed optocoupler U2, the PWM signal directly drives Q1, Q1 drives the step-up transformer T1, and a sinusoidal signal with a fixed frequency is applied to the piezoelectric ceramic to make the piezoelectric ceramic T2 generate physical vibration, thereby realizing conversion from mechanical energy to electrical energy, and then the piezoelectric ceramic connected to the output terminal generates voltage through a positive piezoelectric effect. The piezoelectric ceramic transformer is driven by the MCU processor through outputting a PWM waveform with variable frequency to generate a driving sine wave with certain frequency, the driving sine wave is converted into electric energy through mechanical energy, and then the electric energy is output to a discharging carbon brush after being rectified and multiplied by voltage through a high-voltage silicon stack to discharge air. The reliability and stability of the negative ion generator are improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should be able to conceive of the present invention without creative design of the similar structural modes and embodiments without departing from the spirit of the present invention, and all such modifications should fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a piezoceramics negative oxygen ion generator, includes anion generation module and shell, be provided with air intake and air outlet on the shell, anion generation module locates in the shell, just anion generation module locates the air outlet department of shell, its characterized in that: the negative ion generating module comprises a PCB control board, a piezoelectric ceramic transformer and a negative ion output carbon brush, wherein the piezoelectric ceramic transformer is connected with the output end of the PCB control board, the piezoelectric ceramic transformer is used for converting alternating current generated by the PCB control board into direct current high voltage, the negative ion output carbon brush is connected with the output end of the piezoelectric ceramic transformer through a wire, and the negative ion output carbon brush outputs negative ions to the outside to the air.
2. The piezoelectric ceramic oxygen anion generator of claim 1, wherein: the PCB control panel comprises a top plate, a middle plate and a bottom plate, wherein the top plate is formed by pressing a conductive silver paste layer and a ceramic wafer, a piece of conductive silver paste with a fixed shape is sintered on the high-insulation ceramic wafer and is connected with the high-insulation ceramic wafer through a via hole conductive probe, the middle plate is a middle conductive layer, the middle conductive layer is a conductive copper clad layer, the middle conductive layer is a bonding pad position where a wire is connected to the bottom plate through a via hole, a resistance voltage division circuit is arranged on the bottom plate, the resistance voltage division circuit achieves a resistance voltage division effect, current is converted into voltage, and the voltage is connected to an ADC sampling port along with a voltage signal Vout with variable Vin.
3. The piezoelectric ceramic oxygen anion generator of claim 2, wherein: the PCB control panel comprises an MUC, an oscillating circuit, a driving circuit, a voltage doubling circuit and an energy feedback circuit;
the utility model discloses an energy feedback circuit, including drive module, oscillating circuit, drive module, voltage doubling circuit, energy feedback circuit, MUC, oscillating circuit is connected with MUC, oscillating circuit's output is connected with drive circuit's input, drive circuit is used for producing alternating voltage, drive circuit's output and piezoceramics transformer are connected, piezoceramics transformer is used for producing pure sine wave under the alternating voltage effect that drive module produced, voltage doubling circuit's input is connected with piezoceramics transformer's output, energy feedback circuit one end is connected with oscillating circuit, energy feedback circuit's the other end and voltage doubling circuit are connected, voltage doubling circuit be used for with piezoceramics transformer's output voltage enlargies once more, and passes through anion output carbon brush exports the anion to the air in to the outer.
4. The piezoelectric ceramic oxygen anion generator of claim 3, wherein: when the piezoelectric ceramic transformer discharges air, if a conductor is close to the piezoelectric ceramic transformer, voltage changes along with the close occurrence of the conductor, and the voltage on the conductive silver paste also changes.
5. The piezoelectric ceramic oxygen anion generator of claim 4, wherein: and the MUC reads the change of voltage data through the internal ADC to perform direct-current high-voltage output voltage feedback detection so as to adjust the PWM output frequency.
6. The piezoelectric ceramic oxygen anion generator of claim 5, wherein: and the MUC reads the change of the voltage data through the internal ADC, and the MCU closes the PWM output after the voltage data reaches a certain threshold value.
7. The piezoelectric ceramic oxygen anion generator of claim 2, wherein: the PCB control panel is formed by laminating a top plate, a middle plate and a bottom plate, and is manufactured by a gold immersion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211154866.9A CN115525007A (en) | 2022-09-21 | 2022-09-21 | Piezoelectric ceramic negative oxygen ion generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211154866.9A CN115525007A (en) | 2022-09-21 | 2022-09-21 | Piezoelectric ceramic negative oxygen ion generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115525007A true CN115525007A (en) | 2022-12-27 |
Family
ID=84700656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211154866.9A Pending CN115525007A (en) | 2022-09-21 | 2022-09-21 | Piezoelectric ceramic negative oxygen ion generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115525007A (en) |
-
2022
- 2022-09-21 CN CN202211154866.9A patent/CN115525007A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204885832U (en) | Positive and negative ions generator for air purification | |
| RU2009127518A (en) | POWER SUPPLY UNIT FOR CAPACITIVE LOAD | |
| TWM416271U (en) | Switch power supply circuit of flyback structure | |
| CN106899060B (en) | Portable rechargeable-type microsecond pulse power supply | |
| CN101920036B (en) | Purifier with metal band-plate structure reactor | |
| JP2002154809A (en) | Ozonizer | |
| CN201478694U (en) | Air ion generator | |
| US20060073085A1 (en) | Anion generator | |
| CN218298815U (en) | Piezoelectric ceramic negative oxygen ion generator | |
| CN115525007A (en) | Piezoelectric ceramic negative oxygen ion generator | |
| CN101924489B (en) | Non-thermal plasma pulse power supply | |
| CN201572352U (en) | Cold plasma generator | |
| CN201586249U (en) | Plasma air disinfection purifier | |
| JP2013098094A (en) | Ion generating device and electric appliance | |
| TWI314386B (en) | Single-stage driving circuit for linear piezoelectric ceramic motor | |
| CN101263748B (en) | Electric fence energiser output energy control | |
| CN211508914U (en) | Power supply control circuit, ion generator and purifier | |
| CN201726335U (en) | Non-thermal plasma pulse power supply | |
| TW200907259A (en) | Air cleaners | |
| CN107394999A (en) | Method for controlling frequency conversion, frequency-converting control device and ion generator | |
| CN207410239U (en) | Electrostatic dust collection equipment power supply | |
| CN201710701U (en) | Purifier provided with metal strip-plate structured reactor | |
| CN210351010U (en) | Variable frequency power supply filter | |
| JPS58115004A (en) | Ozonizer of silent discharge type | |
| CN208539801U (en) | Atmospheric pressure high-frequency and high-voltage ac plasma power supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |