CN115400299B - Medical atomizer and atomization method of medical atomizer - Google Patents
Medical atomizer and atomization method of medical atomizer Download PDFInfo
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- CN115400299B CN115400299B CN202211024139.0A CN202211024139A CN115400299B CN 115400299 B CN115400299 B CN 115400299B CN 202211024139 A CN202211024139 A CN 202211024139A CN 115400299 B CN115400299 B CN 115400299B
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- 238000000889 atomisation Methods 0.000 title claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 75
- 238000001514 detection method Methods 0.000 claims abstract description 61
- 230000010355 oscillation Effects 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims description 31
- 238000004140 cleaning Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 239000006200 vaporizer Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 239000006199 nebulizer Substances 0.000 claims description 4
- 238000002663 nebulization Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 17
- 239000000919 ceramic Substances 0.000 description 19
- 239000003990 capacitor Substances 0.000 description 10
- 239000003814 drug Substances 0.000 description 9
- 239000011148 porous material Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 4
- 230000015654 memory Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/006—Sprayers or atomisers specially adapted for therapeutic purposes operated by applying mechanical pressure to the liquid to be sprayed or atomised
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
- A61M2205/3386—Low level detectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2209/00—Ancillary equipment
- A61M2209/10—Equipment for cleaning
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention provides a medical atomizer and an atomization method of the medical atomizer, the medical atomizer comprises: the atomizing head comprises an atomizing sheet and an electrode, and the electrode is arranged on the atomizing sheet; the liquid detection module is suitable for detecting residual liquid on the atomizing sheet and producing detection signals; the atomizer body is electrically connected with the electrode and the liquid detection module respectively, and the atomizer body is suitable for inputting a first voltage signal to the electrode so that the atomizing sheet generates atomization, and optionally, inputting a second voltage signal to the electrode according to the detection signal so that the atomizing sheet generates oscillation to shake out residual liquid. According to the medical atomizer and the atomization method of the medical atomizer, the liquid detection module detects that residual liquid exists on the outer side of the atomizing sheet to generate a detection signal, the atomizer main body inputs a second voltage signal to the atomizing sheet according to the detection signal, so that the atomizing sheet generates larger-amplitude oscillation, and the liquid remained on the outer side surface of the atomizing sheet is vibrated out, so that the effect of guaranteeing constant atomization rate is achieved.
Description
Technical Field
The invention relates to the technical field of atomizers, in particular to a medical atomizer and an atomizing method of the medical atomizer.
Background
The medical atomizer is mainly used for various upper and lower respiratory diseases, the medical atomizer adopts liquid medicine to atomize into tiny particles, and the medicine enters the respiratory tract and lung to deposit in a respiratory inhalation mode, so that the purpose of painless, rapid and effective treatment is achieved.
Wherein, the net atomizer adopts vibration micropore formula atomizing piece to pop out the micropore on passing through the atomizing piece with the liquid medicine to play atomizing effect. The atomizing sheet of the net atomizer consists of a metal sheet and piezoelectric ceramics, wherein the metal sheet contains hundreds of thousands of micro-sized pores, and the piezoelectric ceramics vibrate through the alternating voltage of hundreds of thousands of hertz so as to drive the metal sheet to vibrate, so that liquid is ejected out of the micropores on the metal sheet, and tiny particles are generated.
When the atomizing time of the net type atomizer is longer, the liquid is attached to the outer side surface of the atomizing sheet, and at the moment, the vibration amplitude of the atomizing sheet is reduced due to the fact that the two ends of the atomizing sheet are provided with the liquid, so that the atomizing rate is reduced.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defect of reduced atomization rate in the prior art, so as to provide the medical atomizer capable of improving the atomization rate.
In order to solve the above technical problems, the present invention provides a medical atomizer, comprising: the atomizing head comprises an atomizing sheet and an electrode, and the electrode is arranged on the atomizing sheet; a liquid detection module adapted to detect residual liquid on the aerosolized sheet and produce a detection signal; the atomizer body is electrically connected with the electrode and the liquid detection module respectively, and is suitable for inputting a first voltage signal to the electrode so that the atomizing sheet generates atomization; or a second voltage signal is input to the electrode according to the detection signal, so that the atomization sheet generates oscillation to shake out the residual liquid.
Optionally, the liquid detection module comprises a water detection capacitor.
Optionally, the medical vaporizer further comprises: the blockage judging module is suitable for judging whether the atomizing sheet is blocked or not; the blocking judging module is in communication connection with the atomizer main body, so that the atomizer main body inputs a third voltage signal to the electrode according to the blocking condition of the atomizing sheet, and the amplitude of the third voltage signal is larger than that of the second voltage signal.
Optionally, the jam determination module includes: the cleaning key is in communication connection with the atomizer main body; and when the cleaning key is started, judging that the atomizing sheet is blocked.
Optionally, the atomizing sheet includes: a first piezoelectric element having a ring shape; the metal sheet is connected with the first piezoelectric element and seals the hole of the first piezoelectric element; the second piezoelectric element is annular and connected with the metal sheet, and the metal sheet seals the hole of the second piezoelectric element; the electrode comprises a first electrode and a second electrode, the first electrode is arranged on the first piezoelectric element, the second electrode is arranged on the second piezoelectric element, the first electrode acquires the first voltage signal, and the second electrode acquires the second voltage signal.
Therefore, another technical problem to be solved by the invention is to overcome the technical defect of the decrease of the atomization rate in the prior art, thereby providing an atomization method of the medical atomizer capable of improving the atomization rate.
In order to solve the technical problems, the invention provides an atomization method of a medical atomizer, which comprises the following steps: inputting a first voltage signal to an atomization sheet so that the atomization sheet generates atomization; detecting residual liquid on the outer surface of the atomizing sheet and producing a detection signal; and inputting a second voltage signal to the atomizing sheet according to the detection signal, so that the atomizing sheet generates oscillation to vibrate out the residual liquid.
Optionally, the resonance frequency of the first voltage signal is the same as the self-resonance frequency of the atomizing sheet.
Optionally, the amplitude of the second voltage signal is greater than the amplitude of the first voltage signal, and the resonant frequency of the second voltage signal is less than the resonant frequency of the first voltage signal.
Optionally, the resonance frequency of the second voltage signal is 10% of the resonance frequency of the first voltage signal.
Optionally, the atomizing sheet includes a first electrode and a second electrode, wherein the first voltage signal is input to the first electrode, and the second voltage signal is input to the second electrode.
Optionally, the atomization method of the medical atomizer is characterized by further comprising: when micropores of the atomizing sheet are blocked, a third voltage signal is input to the atomizing sheet, and the amplitude of the third voltage signal is larger than that of the second voltage signal.
The technical scheme of the invention has the following advantages:
1. According to the medical atomizer provided by the invention, the liquid detection module is used for detecting residual liquid on the outer side of the atomizing sheet, the liquid detection module is used for generating the detection signal, the atomizer main body is used for acquiring the detection signal, and the second voltage signal is input to the atomizing sheet according to the detection signal, so that the atomizing sheet generates larger-amplitude oscillation, and the liquid on the outer side surface of the atomizing sheet is vibrated out, so that the effect of ensuring the constant atomizing rate is achieved.
2. The medical atomizer provided by the invention judges whether residual liquid exists on the outer side surface of the atomizing sheet by detecting the capacitance value difference between water and water in the water-free state, and has the characteristics of high sensitivity, no mechanical moving part, convenience in installation, small volume, low power consumption and the like.
3. According to the medical atomizer provided by the invention, the first electrode is connected to the positive electrode of the first piezoelectric element, and the second electrode is connected to the positive electrode of the second piezoelectric element, so that the vibration precision can be improved.
4. According to the medical atomizer provided by the invention, the third voltage signal is input to the second electrode through the cleaning key, the second piezoelectric element is started to generate oscillation, and impurities blocked in the micropore area are ejected out by the second piezoelectric element through larger amplitude, so that the effect of cleaning holes is achieved, the atomizing efficiency can be improved, and the service life of the atomizer is ensured.
5. According to the atomization method of the medical atomizer, provided by the invention, the residual liquid on the outer side of the atomization sheet is detected, the detection signal is generated, the atomizer main body acquires the detection signal, and the second voltage signal is input to the atomization sheet according to the detection signal, so that the atomization sheet generates larger-amplitude oscillation, and the liquid on the outer side surface of the atomization sheet is vibrated out, so that the effect of ensuring the constant atomization rate is achieved.
6. According to the atomization method of the medical atomizer, when the resonance frequency of the first voltage signal is the same as the self-resonance frequency of the atomization sheet, the maximum atomization amount can be achieved.
7. According to the atomization method of the medical atomizer, provided by the invention, the liquid can be vibrated out only within +/-10% of the specification interval through the resonance frequency of the second voltage signal.
8. According to the atomization method of the medical atomizer, the second voltage signal with stronger voltage amplitude and lower frequency is introduced into the second electrode of the atomizing sheet, the resonance frequency of the second voltage signal is smaller than that of the first voltage signal, so that the second piezoelectric element generates larger-amplitude oscillation, the metal sheet and the first piezoelectric element are driven to oscillate together, and liquid remained on the outer side surface of the atomizing sheet is vibrated out, so that the effect of guaranteeing constant atomization rate is achieved.
9. The atomization method of the medical atomizer improves vibration precision.
10. According to the atomization method of the medical atomizer, the second piezoelectric element can be started to generate oscillation by inputting the third voltage signal to the second electrode, and impurities blocked in the micropore area are ejected out by the second piezoelectric element through larger amplitude, so that the effect of cleaning holes is achieved, the atomization efficiency is improved, and the service life of the atomizer is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic front view of an atomizing head of a medical atomizer according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an atomizing head of a medical atomizer according to an embodiment of the present invention;
Fig. 3 is a schematic view showing a partial sectional structure of a medical vaporizer according to an embodiment of the present invention;
fig. 4 is a schematic side view of a medical vaporizer according to an embodiment of the present invention;
Fig. 5 is a flowchart of an atomization method of the medical atomizer according to an embodiment of the present invention;
Fig. 6 is a flowchart of an atomization method of a medical atomizer according to another embodiment of the present invention;
fig. 7 is a flowchart of an atomization method of a medical atomizer according to still another embodiment of the present invention.
Reference numerals illustrate:
1-an atomizing head; 2-a liquid detection module; 3-an atomizer body; 4-a face mask;
11-an atomization sheet; 12-electrode; 13-a liquid medicine tank;
111-a first piezoelectric element; 112-a second piezoelectric element; 113-metal sheets;
1101-microwell region;
121-a first electrode; 122-a second electrode; 123-a third electrode;
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The atomizing piece of current atomizer adopts micropore formula atomizing piece, pops out through the micropore on the atomizing piece at atomizing in-process liquid, and when the atomizing time had for a long time, probably can make the atomizing piece plug up, leads to the atomizing rate decline.
Example 1
As shown in fig. 1 and 3, there is provided a medical vaporizer comprising: the atomizing head 1 comprises an atomizing sheet 11 and an electrode 12, the electrode 12 is arranged on the atomizing sheet 11, the liquid detection module 2 is suitable for detecting residual liquid on the atomizing sheet 11 and producing detection signals, the atomizer body 3 is respectively and electrically connected with the electrode 12 and the liquid detection module 2, and the atomizer body 3 is suitable for inputting a first voltage signal to the electrode 12 so that the atomizing sheet 11 generates atomization; and optionally a second voltage signal is input to the electrode 12 according to the detection signal so that the atomizing sheet 11 oscillates to vibrate out the residual liquid.
The above-mentioned atomizing head 1 is provided with a liquid medicine tank 13, and the atomizing sheet 11 has a microporous region 1101, and the microporous region 1101 has hundreds to thousands of micro-meter-sized pores. When the atomizer atomizes normally, the atomizer body 3 generates a voltage signal to the atomizing sheet 11 of the atomizing head 1, so that the atomizing sheet 11 oscillates, and the liquid in the liquid medicine tank 13 pops up through the micropore region 1101, thereby achieving an atomization effect.
When the atomizing time is long, the outside of atomizing piece 11 probably has the hydrops to produce, detect the outside of atomizing piece 11 when liquid detection module 2, liquid detection module 2 can be according to the detection result generation detected signal, be equipped with the master control unit in the atomizer main part 3, can acquire detected signal, it remains to have liquid in the outside of atomizing piece 11 to show when detected signal, then input second voltage signal to atomizing piece 11 according to detected signal, make atomizing piece 11 produce the vibration of great range, shake out the liquid of remaining at the outside surface of atomizing piece 11, play the invariable effect of assurance atomizing rate. In addition, when the detection signal shows that no liquid remains, the nebulizer body 3 does not input the second voltage signal to the electrode 12, although the nebulizer body 3 also acquires the detection signal.
Further, as shown in fig. 1, the liquid detection module 2 includes a water detection capacitor.
The water detection capacitor is a capacitive liquid level sensor, the atomizing head 1 is provided with a mounting groove, water detection is accommodated in the mounting groove, a precise touch MCU is arranged in the water detection capacitor, and when the water detection capacitor detects liquid, low voltage is output, and the output voltage is less than 0.3V under the control of a scientific algorithm; when the water detection capacitor detects no liquid, a high voltage is output, and the output voltage is more than 4.5. Whether or not there is residual liquid on the outer side surface of the atomizing sheet 11 is judged by sensing the difference in capacitance between the water and the anhydrous state. The water detection electrolyte has the characteristics of high sensitivity, no moving parts, convenient installation, small volume, low power consumption and the like. The atomizer body 3 is electrically connected to the water detection capacitor, and when the atomizer body 3 acquires that the voltage output by the water detection capacitor is a low voltage, a second voltage signal is input to the electrode 12.
Further, the medical vaporizer further comprises: the blockage judging module is suitable for judging whether the atomizing sheet 11 is blocked, wherein the blockage judging module is in communication connection with the atomizer body 3, so that the atomizer body 3 inputs a third voltage signal to the electrode 12 according to the blockage condition of the atomizing sheet, and the amplitude of the third voltage signal is larger than that of the second voltage signal.
The above-mentioned jam determination module is used for determining whether the atomizing sheet is jammed, wherein the number of times or time of using the cleaning key, and the weight of the atomizing sheet can be determined to determine whether the atomizing sheet 11 is jammed. Specifically, the judging mode of the blockage judging module may include judging the weight of the atomizing sheet 11, when judging that the weight of the atomizing sheet 11 exceeds a preset value, judging that the atomizing sheet 11 is blocked, and the blockage judging module may further include a module in which the main control unit of the atomizer body 3 judges according to the number of times of cleaning the atomizing sheet 11, when the number of times of cleaning the atomizing sheet 11 is increased, the more frequent, the atomizing sheet 11 is judged to be blocked. The manner of cleaning the atomizing sheet 11 may be by the user operating the cleaning key by himself or by periodically cleaning the atomizing sheet using the cleaning key.
Still further, the medical vaporizer further comprises: a cleaning key electrically connected to the atomizer body 3; wherein the cleaning key is adapted to input a third voltage signal to the second electrode 122, the amplitude of the third voltage signal being greater than the amplitude of the second voltage signal.
In the process of generating atomization, when the atomizer is used for a long time, micropores on the metal sheet 113 have a blocking phenomenon, at this time, a user can press a cleaning key, the cleaning key inputs a third voltage signal to the second electrode 122, the second piezoelectric element 112 is started to generate oscillation, and impurities blocked in the micropore region 1101 are ejected out by the second piezoelectric element 112 through larger amplitude, so that the effect of cleaning the holes is achieved, the atomization efficiency can be improved, and the service life of the atomizer is ensured. In this case, it is necessary to compare the particle diameter of the plugs with the pore size, and if the particle diameter of the plugs does not exceed the pore size much, the plugs that have been plugged in the pores in the microporous region 1101 can be vibrated out with a large amplitude. The frequency f 0 of the atomizing plate 11 during operation is fixed at the optimal resonance frequency point, and the plug is ejected according to the voltage, and the situation is determined according to the situation.
Further, as shown in fig. 2, the atomizing sheet 11 includes: the piezoelectric device comprises a first piezoelectric element 111, a metal sheet 113 and a second piezoelectric element 112, wherein the first piezoelectric element 111 is annular, the metal sheet 113 is connected with the first piezoelectric element 111, the metal sheet 113 seals a hole of the first piezoelectric element 111, the second piezoelectric element 112 is annular, the second piezoelectric element 112 is connected with the metal sheet 113, and the metal sheet 113 seals a hole of the second piezoelectric element 112; the electrode 12 includes a first electrode 121 and a second electrode 122, the first electrode 121 is disposed on the first piezoelectric element 111, the second electrode 122 is disposed on the second piezoelectric element 112, the first electrode 121 obtains a first voltage signal, and the second electrode 122 obtains a second voltage signal or a third voltage signal.
The first piezoelectric element 111 and the second piezoelectric element 112 are respectively in an annular sheet-like structure, the metal sheet 113 is disposed between the first piezoelectric element 111 and the second piezoelectric element 112, and the metal sheet 113 is bonded to the first piezoelectric element 111 and the second piezoelectric element 112, respectively. The metal sheet 113 is provided with a micro-hole region 1101 at a position corresponding to the hole of the first piezoelectric element 111 and the hole of the second piezoelectric element 112. The first piezoelectric element 111 and the second piezoelectric element 112 may be piezoelectric ceramic plates, or may be sheet structures made of other materials capable of changing the oscillation amplitude by changing the voltage. The first electrode 121 is connected to the positive electrode of the first piezoelectric element 111, the second electrode 122 is connected to the positive electrode of the second piezoelectric element 112, the negative electrode of the first piezoelectric element 111 and the negative electrode of the second piezoelectric element 112 are connected to the ground electrode, and the positions of the metal sheet 113, the first piezoelectric element 111 and the second piezoelectric element 112 can be changed according to different structures, so that mutual adhesion between the three is ensured. The metal sheet 113 has a microporous region 1101 thereon, and the microporous region 1101 has hundreds to thousands of micro-meter-sized pores.
When the atomizer atomizes normally, the atomizer body 3 generates a voltage signal with the same self-resonance frequency f 0 as that of the atomizing sheet 11 to the first electrode 121 of the atomizing sheet 11, so that the first piezoelectric element 111 oscillates at the optimal resonance frequency, and the first piezoelectric element 111 is bonded with the metal sheet 113, thereby driving the metal sheet 113 to vibrate, and the liquid in the liquid medicine tank 13 is ejected out through the micropore region 1101, so as to achieve the atomization effect. The optimal resonant frequency of each atomizing plate 11 is not necessarily the same, and will not be described in detail herein. Under the same voltage driving, the atomization sheet 11 can work at the optimal resonance frequency to achieve the maximum atomization amount, the frequency can shake out the liquid within +/-10% of the specification interval, and the effect of shaking out the liquid is the best only at the optimal resonance point. When the atomization time is long and the liquid accumulation is generated on the outer side of the atomization sheet 11, when the water detection capacitance detects that the liquid remains on the outer side of the atomization sheet 11, a voltage signal N with stronger voltage amplitude and lower frequency than f 0 is fed to the second electrode 122 of the atomization sheet 11, the frequency is f1, the second piezoelectric element 112 generates larger-amplitude oscillation, the metal sheet 113 and the first piezoelectric element 111 are driven to oscillate together, and the liquid remaining on the outer side surface of the atomization sheet 11 is vibrated out, so that the effect of guaranteeing the constant atomization rate is achieved.
The first voltage signal may be input to the second electrode 122, the second voltage signal and the third voltage signal may be input to the first electrode 121, or the first voltage signal, the second voltage signal, and the third voltage signal may be input to the first electrode 121 or the second electrode 122 at the same time. However, if two voltage signals are applied to the first electrode 121 at the same time, the piezoelectric ceramic of the first electrode 121 or the second electrode 122 may be damaged due to the larger amplitude of the electric signal, and therefore, the second electrode 122 is added, and the two electric signals may be superimposed to obtain vibration of the atomizing sheet 11 with a larger amplitude.
As shown in fig. 4, the atomizer further comprises a face mask 4, wherein the face mask 4 is arranged on the atomizing head 1, and the atomizer body 3 provides an oscillating voltage required by the atomizing sheet 11 and various signal processing, such as a detection signal of residual liquid on the atomizing sheet 11 and a frequency signal of a resonance frequency of the atomizing sheet 11. The atomizing head 1 comprises a liquid medicine tank 13, an atomizing sheet 11 and a water detection capacitor. The atomizing sheet 11 comprises a metal sheet 113, a piezoelectric ceramic sheet a, a piezoelectric ceramic sheet b and an electrode 12, wherein the metal sheet 113 is arranged between the piezoelectric ceramic sheet a and the piezoelectric ceramic sheet b, the electrode 12 comprises a first electrode 121, a second electrode 122 and a third electrode 123, the first electrode 121 is connected to the positive electrode of the ceramic sheet a, the second electrode 122 is connected to the positive electrode of the ceramic sheet b, the negative electrodes of the ceramic sheets a and b are mutually connected to the third electrode 123, the positions of the metal sheet 113 and the ceramic sheets a and b can be changed according to different structures, and mutual adhesion among the three can be ensured.
Example 2
As shown in fig. 5, a method of atomizing a medical atomizer includes:
Step S101: inputting a first voltage signal to the atomizing sheet 11 so that the atomizing sheet 11 generates atomization;
Step S103: detecting residual liquid on the outer surface of the atomizing sheet 11 and producing a detection signal;
step S105: a second voltage signal is input to the atomizing sheet 11 according to the detection signal, so that the atomizing sheet 11 oscillates to shake out the residual liquid.
The above-described atomizer plate 11 has a microporous region 1101 thereon, and the microporous region 1101 has hundreds to thousands of micropores. When the atomizer atomizes normally, the atomizer body 3 generates a first voltage signal to the atomizing sheet 11, so that the atomizing sheet 11 oscillates, and the liquid in the liquid medicine tank 13 pops up through the micropore area 1101, thereby achieving an atomization effect. When the atomization time is long, the liquid accumulation is generated on the outer side of the atomization sheet 11, a detection signal is generated when the residual liquid on the outer side of the atomization sheet 11 is detected, the atomizer body 3 acquires the detection signal, and a second voltage signal is input to the atomization sheet 11 according to the detection signal, so that the atomization sheet 11 generates larger-amplitude oscillation, and the liquid remained on the outer side surface of the atomization sheet 11 is vibrated out, so that the effect of guaranteeing the constant atomization rate is achieved.
Further, the resonance frequency of the first voltage signal is the same as the self-resonance frequency of the atomizing plate 11.
The self-resonant frequency of the atomizing plate 11 is denoted as f 0 and is fixed, and the maximum atomization can be achieved when the resonant frequency of the first voltage signal is the same as the self-resonant frequency of the atomizing plate 11.
Further, the amplitude of the second voltage signal is greater than the amplitude of the first voltage signal, and the resonant frequency of the second voltage signal is less than the resonant frequency of the first voltage signal.
The second electrode 122 of the atomizing sheet 11 is fed with a second voltage signal N with a stronger voltage amplitude and a frequency lower than that of f 0, the frequency of the second voltage signal is f 1, and the resonant frequency of the second voltage signal is smaller than that of the first voltage signal, so that the second piezoelectric element 112 generates larger-amplitude oscillation to drive the metal sheet 113 and the first piezoelectric element 111 to oscillate together, and the liquid remaining on the outer side surface of the atomizing sheet 11 is vibrated out, thereby playing a role of guaranteeing the constant atomizing rate.
Further, the resonance frequency of the second voltage signal is 10% of the resonance frequency of the first voltage signal.
The resonant frequency of the second voltage signal can shake out the liquid within +/-10% of the specification interval, and the effect of shaking out the liquid is best only at the optimal resonant point.
Further, the atomizing sheet 11 includes a first electrode 121 and a second electrode 122, wherein a first voltage signal is input to the first electrode 121 and a second voltage signal is input to the second electrode 122.
The above-mentioned atomizing sheet 11 includes the first piezoelectric element 111 and the second piezoelectric element 112, the first piezoelectric element 111 is provided with the first electrode 121, the second piezoelectric element 112 is provided with the second electrode 122, and the first electrode 121 and the second electrode 122 are both positive electrodes, when the first voltage signal is input to the first electrode 121, the first piezoelectric element 111 corresponding to the first electrode 121 vibrates, when the second voltage signal is input to the second electrode 122, the second piezoelectric element 112 corresponding to the second electrode 122 vibrates.
Further, as shown in fig. 6, the atomization method of the medical atomizer further includes:
Step S107: when the micropores of the atomizing sheet 11 are blocked, a third voltage signal is input to the atomizing sheet 11, and the amplitude of the third voltage signal is larger than that of the second voltage signal.
In the process of generating atomization, when the atomizer is used for a long time, micropores on the atomizing sheet 11 have a blocking phenomenon, at this time, the second piezoelectric element 112 can be started to generate oscillation by inputting a third voltage signal to the second electrode 122, and sundries blocked in the micropore region 1101 are ejected out by the second piezoelectric element 112 through larger amplitude, so that the effect of cleaning holes is achieved, the atomization efficiency can be improved, and the service life of the atomizer is ensured.
As shown in fig. 7, the atomization method of the medical atomizer further includes:
Step S201: vibrating the ceramic sheet a;
step S203: the atomizer atomizes normally;
Step S205: when the detection capacitor detects that water exists, automatically starting the ceramic sheet b;
step S207: when the atomization rate is reduced, a key is pressed, and the ceramic plate b is started.
The ceramic plate a is a piezoelectric ceramic plate a, the ceramic plate b is a piezoelectric ceramic plate b, and the key is a cleaning key.
It will be appreciated by those skilled in the art that a program implementing all or part of the above-described embodiment method may be implemented by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium, and when executed, may include the above-described embodiment method flow. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a hard disk (HARD DISK DRIVE, abbreviated as HDD), a Solid state disk (Solid-STATE DRIVE, SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1. A medical vaporizer, comprising:
Atomising head (1), including atomizing piece (11) and electrode (12), electrode (12) are located on atomizing piece (11), set up the mounting groove on atomising head (1), atomizing piece (11) include:
A first piezoelectric element (111) having a ring shape;
A metal sheet (113) connected to the first piezoelectric element (111), and the metal sheet (113) seals the hole of the first piezoelectric element (111);
a second piezoelectric element (112) having a ring shape, wherein the second piezoelectric element (112) is connected to the metal sheet (113), and the metal sheet (113) seals the hole of the second piezoelectric element (112);
The electrode (12) comprises a first electrode (121) and a second electrode (122), the first electrode (121) is arranged on the first piezoelectric element (111), the second electrode (122) is arranged on the second piezoelectric element (112), the first electrode (121) acquires a first voltage signal, and the second electrode (122) acquires a second voltage signal or a third voltage signal;
A liquid detection module (2) disposed in the mounting groove, the liquid detection module (2) being adapted to detect residual liquid on the atomizing sheet (11) and to produce a detection signal;
An atomizer body (3) electrically connected to the electrode (12) and the liquid detection module (2), respectively, the atomizer body (3) being adapted to input the first voltage signal to the electrode (12) so that the atomizing sheet (11) generates atomization, and optionally to input the second voltage signal to the electrode (12) according to the detection signal so that the atomizing sheet (11) generates oscillation to shake out the residual liquid;
a clogging judging module adapted to judge whether or not clogging of the atomizing sheet (11) occurs;
The blockage judging module is in communication connection with the atomizer main body (3), so that the atomizer main body (3) inputs the third voltage signal to the electrode (12) according to the blockage condition of the atomizing sheet, and the amplitude of the third voltage signal is larger than that of the second voltage signal.
2. A medical nebulizer according to claim 1, characterized in that the liquid detection module (2) comprises a water detection capacitance.
3. The medical vaporizer of claim 1, wherein the blockage determination module comprises:
The cleaning key is in communication connection with the atomizer main body (3);
and when the cleaning key is started, judging that the atomizing sheet (11) is blocked.
4. A method of atomizing a medical vaporizer according to any one of claims 1 to 3, comprising:
inputting a first voltage signal to an atomization sheet (11) so that the atomization sheet (11) generates atomization;
Detecting residual liquid on the outer surface of the atomizing sheet (11) and producing a detection signal;
And inputting a second voltage signal to the atomizing sheet (11) according to the detection signal, so that the atomizing sheet (11) generates oscillation to shake out the residual liquid.
5. The atomizing method of a medical atomizer according to claim 4, wherein a resonance frequency of the first voltage signal is the same as a self-resonance frequency of the atomizing sheet.
6. The atomizing method of a medical atomizer according to claim 5, wherein an amplitude of the second voltage signal is larger than an amplitude of the first voltage signal, and a resonance frequency of the second voltage signal is smaller than a resonance frequency of the first voltage signal.
7. The atomizing method of a medical atomizer according to claim 6, wherein a resonance frequency of the second voltage signal is 10% of a resonance frequency of the first voltage signal.
8. The nebulization method of a medical nebulizer according to any one of claims 4 to 7, characterized in that the nebulization sheet (11) comprises a first electrode (121) and a second electrode (122), wherein the first voltage signal is input to the first electrode (121) and the second voltage signal is input to the second electrode (122).
9. The atomizing method of the medical atomizer according to any one of claims 4 to 7, further comprising:
When micropores of the atomizing sheet (11) are blocked, a third voltage signal is input to the atomizing sheet (11), and the amplitude of the third voltage signal is larger than that of the second voltage signal.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6273342B1 (en) * | 1997-10-06 | 2001-08-14 | Omron Corporation | Atomizer |
| CN101648041A (en) * | 2009-09-02 | 2010-02-17 | 王成 | Medical micropore atomization medicine absorber |
| CN215504919U (en) * | 2021-05-27 | 2022-01-14 | 珠海格力电器股份有限公司 | Atomizer |
| WO2022021236A1 (en) * | 2020-07-30 | 2022-02-03 | 深圳麦克韦尔科技有限公司 | Micro-porous atomization assembly and apparatus having temperature measurement function |
-
2022
- 2022-08-24 CN CN202211024139.0A patent/CN115400299B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6273342B1 (en) * | 1997-10-06 | 2001-08-14 | Omron Corporation | Atomizer |
| CN101648041A (en) * | 2009-09-02 | 2010-02-17 | 王成 | Medical micropore atomization medicine absorber |
| WO2022021236A1 (en) * | 2020-07-30 | 2022-02-03 | 深圳麦克韦尔科技有限公司 | Micro-porous atomization assembly and apparatus having temperature measurement function |
| CN215504919U (en) * | 2021-05-27 | 2022-01-14 | 珠海格力电器股份有限公司 | Atomizer |
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