Atomization control method and net type atomizer

Abstract

The invention discloses an atomization control method and a net type atomizer. The atomization control method comprises the following steps: acquiring breathing data of a user; determining a breathing state of the user and an expiration end time point of each breathing cycle based on the breathing data; the breathing state comprises stable breathing and abnormal breathing; and controlling the operation state of an atomization sheet based on the breathing state and the expiration ending time point. According to the breathing state and the expiration ending time point of the user, the operation state of the atomization piece is accurately controlled, so that the medicine utilization rate is increased, and intelligent and personalized atomization treatment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of respiratory atomization control, and in particular to an atomization control method and a mesh atomizer. Background Art

[0002] Nebulizers convert liquid drugs into tiny droplets for patients to inhale to treat respiratory diseases. Nebulizers include ultrasonic nebulizers, compression nebulizers and mesh nebulizers. Among them, mesh nebulizers are widely used in the treatment of respiratory diseases due to their many advantages such as small size, portability, low noise, high atomization efficiency and small residual volume.

[0003] In the related technologies, mesh nebulizers still have deficiencies in terms of intelligence, precise control, and safety. They lack corresponding real-time monitoring and intelligent adjustment functions and are unable to automatically adjust nebulization parameters. They also have problems with low drug utilization and poor treatment effects. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an atomization control method, which can automatically adjust the operating state of the atomization sheet and improve the utilization rate of the drug.

[0005] The present invention also proposes a mesh atomizer capable of realizing the above-mentioned atomization control method.

[0006] In a first aspect, an embodiment of the present application provides an atomization control method, comprising:

[0007] Get the user's breathing data;

[0008] Determine the user's breathing state and the exhalation end time point of each breathing cycle based on the breathing data; the breathing state includes stable breathing and abnormal breathing;

[0009] The operating state of the nebulizer sheet is controlled based on the breathing state and the exhalation end time point.

[0010] The atomization control method according to the embodiment of the present invention has at least the following beneficial effects: by acquiring the user's breathing data, the user's breathing state can be monitored in real time. Based on the breathing data, it can be determined whether the user is in a stable breathing or abnormal breathing state, and the exhalation end time point of each breathing cycle can be determined. According to the user's breathing state and the exhalation end time point, the operating state of the atomizer piece is accurately controlled, thereby improving the utilization rate of the drug and realizing intelligent and personalized atomization treatment.

[0011] According to the first aspect, the method of controlling the operating state of the atomizer sheet based on the breathing state and the exhalation end time point includes:

[0012] When the breathing state is stable breathing, predicting the next breathing cycle according to the breathing data;

[0013] The atomization time point is calculated based on the exhalation end time point of the next breathing cycle and the preset duration, and the atomization sheet is controlled to switch to the first atomization state at the atomization time point.

[0014] According to the first aspect, in a possible implementation manner, after controlling the atomizing sheet to switch to the first atomizing state at the atomizing time point, the method further includes:

[0015] The atomizing sheet is controlled to stop at the inhalation end time point of the next breathing cycle.

[0016] According to the first aspect, in a possible implementation, controlling the operating state of the atomizer sheet based on the breathing state and the exhalation end time point includes:

[0017] When the breathing state is abnormal breathing, the atomizer sheet is controlled to switch to the second atomization state at the start time of exhalation in each breathing cycle, and the atomizer sheet is controlled to switch to the first atomization state at the end time of exhalation in each breathing cycle;

[0018] The operating frequency of the atomizer sheet in the first atomization state is greater than the operating frequency of the atomizer sheet in the second atomization state.

[0019] According to the first aspect, in a possible implementation manner, determining the user's respiratory state based on the respiratory data includes:

[0020] Determine the respiratory frequency CPn corresponding to the current respiratory cycle based on the respiratory data;

[0021] Determine, based on the respiratory data, an average respiratory frequency Cpa corresponding to at least two consecutive respiratory cycles before the current respiratory cycle;

[0022] If |CPn-Cpa|≤CPp, the user's breathing state is determined to be stable breathing;

[0023] If |CPn-Cpa|>CPp, it is determined that the user's breathing state is abnormal breathing;

[0024] Where CPp is a constant.

[0025] According to the first aspect, in a possible implementation manner, the method further includes:

[0026] Acquire the current temperature and operating state of the atomizer; the operating state includes a first atomization state, a second atomization state and a stop state;

[0027] If the current temperature is lower than the first preset temperature, and the running state is the stop state or the second atomization state, the atomization sheet is controlled to sweep the frequency for a first time before it switches to the first atomization state next time; wherein the first time is positively correlated with the absolute difference between the current temperature and the first preset temperature;

[0028] And / or, if the current temperature is lower than the first preset temperature and the operating state is the first atomization state; the atomization sheet is controlled to stop, and the atomization sheet is controlled to sweep the frequency for a first time period to switch to the first atomization state again.

[0029] According to the first aspect, in a possible implementation manner, after obtaining the current temperature and operating state of the atomizer sheet, the method further includes:

[0030] If the current temperature is higher than the second preset temperature and the running state is the stopped state, the cooling structure is turned on to cool the atomizing sheet and the liquid in contact with the atomizing sheet;

[0031] And / or, if the current temperature is higher than the second preset temperature, and the operating state is the first atomization state or the second atomization state; the atomization plate is controlled to operate at a reduced frequency, or a cooling structure is turned on to cool the atomization plate and the liquid in contact with the atomization plate.

[0032] According to the first aspect, in a possible implementation manner, the method further includes:

[0033] Acquiring in real time the temperature of the liquid in contact with the atomizing sheet;

[0034] If the temperature of the liquid is greater than or equal to the third preset temperature, the cooling structure is turned on to cool the atomizing plate and the liquid in contact with the atomizing plate.

[0035] In a second aspect, the present application also provides a mesh atomizer, the mesh atomizer comprising:

[0036] a shell having a breathing passage;

[0037] An atomizer sheet, comprising a base, a piezoelectric ceramic and a flexible circuit board, wherein the flexible circuit board comprises a first annular circuit board and a mounting portion connected as an integral structure, the piezoelectric ceramic is arranged between the base and the first annular circuit board, and the mounting portion extends into the breathing passage;

[0038] A liquid supply mechanism, used for containing liquid and delivering the liquid to the atomizing sheet;

[0039] A breathing sensing detection probe is arranged at a portion of the mounting portion located in the breathing passage, and the breathing sensing detection probe is used to detect breathing data of the user;

[0040] A control unit is electrically connected to the first annular circuit board, and is used to determine the user's breathing state and the exhalation end time point of each breathing cycle based on the user's breathing data, and control the output power of the piezoelectric ceramic based on the breathing state and the exhalation end time point to adjust the operating state of the atomizer.

[0041] The mesh nebulizer according to the embodiment of the present invention has at least the following beneficial effects: by setting a respiratory sensing detection probe on the flexible circuit board, the user's respiratory data can be obtained to detect the user's respiratory state in real time. There is always a control circuit on the flexible circuit board, and the respiratory sensing detection probe and the control unit can be directly electrically connected to the flexible circuit board, that is, connected to the control circuit on the flexible circuit board, thereby facilitating the transmission of control signals and accurately controlling the operating state of the atomizer sheet, thereby improving the utilization rate of the drug.

[0042] According to the second aspect, in a possible implementation, the mesh atomizer includes a first temperature sensor, the first temperature sensor is used to detect the temperature of the base, and the temperature sensor is arranged on the first annular circuit board; and / or,

[0043] The flexible circuit board further includes a second annular circuit board and a connecting portion, wherein the connecting portion connects the second annular circuit board and the first annular circuit board; the second annular circuit board and the first annular circuit board are spaced apart along the axial direction of the base, and an insulating layer is filled between the second annular circuit board and the first annular circuit board;

[0044] The mesh atomizer further includes a second temperature sensor electrically connected to the second annular circuit board, and the second temperature sensor is used to detect the temperature of the liquid in contact with the atomizing sheet.

[0045] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0047] Figure 1 This is a schematic diagram of the structure of an atomizer sheet according to an embodiment of the present invention;

[0048] Figure 2 Schematic diagram of the cross-sectional structure of an atomizer sheet according to an embodiment of the present invention;

[0049] Figure 3 This is a schematic diagram of the structure of an atomizer sheet according to an embodiment of the present invention;

[0050] Figure 4It is a schematic diagram of a partial cross-sectional structure of an atomizer sheet according to an embodiment of the present invention;

[0051] Figure 5 It is a schematic flow chart of the atomization control method in the first embodiment of the present invention;

[0052] Figure 6 A waveform diagram of breathing data and atomization supply in an embodiment of the present invention;

[0053] Figure 7 A schematic flow chart of an atomization control method in a second embodiment of the present invention;

[0054] Figure 8 A schematic flow chart of an atomization control method in a third embodiment of the present invention;

[0055] Fig. 9 It is a schematic flow chart of the atomization control method in the fourth embodiment of the present invention;

[0056] Fig.10 A schematic flow chart of an atomization control method in a fifth embodiment of the present invention;

[0057] Fig.11 Schematic diagram of the flow of the atomization control method in the sixth embodiment of the present invention.

[0058] Reference numerals:

[0059] 100. Atomizer film;

[0060] 10. base; 11. inner ring; 12. atomization part; 121. atomization hole; 13. positive electrode pin; 14. outer ring; 15. support part;

[0061] 20. Piezoelectric ceramics;

[0062] 30. flexible circuit board; 31. first ring-shaped circuit board; 311. board body; 312. conductive adhesive layer; 32. extension part; 33. second ring-shaped circuit board; 34. connection part;

[0063] 41. First temperature sensor; 42. Breathing induction detection probe; 43. Second temperature sensor; 44. Liquid shortage detection probe;

[0064] 50. Insulation layer; 51. Limiting groove. DETAILED DESCRIPTION

[0065] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0066] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0067] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0068] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0069] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0070] The present application provides a mesh atomizer, which includes a housing, an atomizer sheet 100, a liquid supply mechanism and a respiratory sensing detection probe 42. The housing has a respiratory passage; the atomizer sheet 100 includes a base 10, a piezoelectric ceramic 20 and a flexible circuit board 30, the flexible circuit board 30 includes a first annular circuit board 31 and a mounting portion 35 connected as an integral structure, the piezoelectric ceramic 20 is arranged between the base 10 and the first annular circuit board 31, and the mounting portion 35 extends into the respiratory passage; the liquid supply mechanism is used to contain liquid and transport the liquid to the atomizer sheet; the respiratory sensing detection probe 42 is arranged at the portion of the mounting portion 35 located in the respiratory passage, and the respiratory sensing detection probe 42 is used to detect the user's respiratory data; the control unit is electrically connected to the first annular circuit board 31, and is used to determine the user's respiratory state and the exhalation end time point of each respiratory cycle based on the user's respiratory data, and control the output power of the piezoelectric ceramic based on the respiratory state and the exhalation end time point to adjust the operating state of the atomizer sheet.

[0071] By setting a respiration sensing detection probe 42 on the flexible circuit board 30, the user's respiration data can be obtained to detect the user's respiration state in real time. A control circuit is etched on the flexible circuit board 30, and the respiration sensing detection probe 42 and the control unit can be directly electrically connected to the flexible circuit board 30, that is, connected to the control circuit on the flexible circuit board 30, thereby facilitating the transmission of control signals and accurately controlling the operating state of the atomizer sheet 100, thereby improving the utilization rate of the drug.

[0072] The atomizing sheet 100 includes a base 10 , a piezoelectric ceramic 20 and a flexible circuit board 30 .

[0073] The piezoelectric ceramic 20 is usually ring-shaped, and has a piezoelectric effect, and can be deformed and vibrate under the action of an external electric field. Specifically, the upper and lower end surfaces of the piezoelectric ceramic 20 are respectively connected to the negative electrode and the positive electrode of the external power supply, and the negative electrode and the positive electrode of the external power supply respectively apply voltage to the upper and lower ends of the piezoelectric ceramic 20, thereby forming an electric field inside the piezoelectric ceramic 20 and causing the piezoelectric ceramic 20 to vibrate.

[0074] The base 10 includes an inner ring portion 11, an atomizing portion 12 and a positive electrode pin 13. The inner ring portion 11 is made of a metal material, and the lower end surface of the piezoelectric ceramic 20 is in contact with the inner ring portion 11. The inner ring portion 11 not only serves as a supporting structure, but can also be electrically connected to the positive electrode of an external power source through the positive electrode pin 13 to achieve stable transmission of electrical energy. The atomizing portion 12 is arranged in the hollow area of ​​the inner ring portion 11, and is also opposite to the hollow area of ​​the piezoelectric ceramic 20; the vibration generated by the piezoelectric ceramic 20 is transmitted to the atomizing portion 12 through the inner ring portion 11, and the atomizing portion 12 can contact the liquid to disperse the liquid into tiny droplets.

[0075] The flexible circuit board 30 includes a first annular circuit board 31 and an extension portion 32, wherein the extension portion 32 is electrically connected to the first annular circuit board 31; the first annular circuit board 31 is bonded to the upper end surface of the piezoelectric ceramic 20, and the portion where the first annular circuit board 31 and the piezoelectric ceramic 20 are bonded forms a negative electrode feeding point; the extension portion 32 is used to connect the negative electrode of an external power source. The negative electrode feeding point is a portion on the first annular circuit board 31 that is in direct contact with the piezoelectric ceramic 20 for electrical conduction, and the negative electrode feeding point is electrically connected to the negative electrode of the external power source through the extension portion 32, thereby forming an electric field between the negative electrode feeding point and the inner annular portion 11 that acts on the piezoelectric ceramic 20.

[0076] In this embodiment, the positive electrode pin 13 and the inner ring portion 11 can be connected as an integral structure, and the extension portion 32 and the first annular circuit board 31 can be connected as an integral structure. It is not necessary to lead out to an external power supply by welding points and welding wires, which can reduce the risk of poor contact and short circuit caused by loose welding points or too small welding points. In addition, the integral structure can reduce energy loss during power transmission, thereby improving atomization efficiency.

[0077] Among them, the negative electrode feeding point can be annular, matching the shape of the upper end surface of the piezoelectric ceramic 20, so as to form a more uniform and close contact with the piezoelectric ceramic 20. The annular negative electrode feeding point cooperates with the inner ring part 11 to form a complete circuit transmission path. The uniformity and stability of the electric energy transmission to the piezoelectric ceramic 20 are improved, and the vibration effect of the piezoelectric ceramic 20 is optimized.

[0078] In some embodiments, the first annular circuit board 31 is not only used to form a negative electrode feeding point, but also can be provided with some functional devices, such as a first temperature sensor 41, a breathing sensing detection probe 42, etc., to achieve specific electrical functions.

[0079] like Figures 1 to 3 As shown, the mesh atomizer may include a first temperature sensor 41, which can detect the ambient temperature before atomization begins, and modify the frequency sweep time during the atomization startup process according to the ambient temperature to achieve an optimal atomization frequency.

[0080] The first low temperature sensor is directly mounted on the first annular circuit board 31. Specifically, the outer edge size of the first annular circuit board 31 is larger than the outer edge size of the piezoelectric ceramic 20, that is, part of the structure of the first annular circuit board 31 is located outside the piezoelectric ceramic 20, and the part can be bonded to the inner ring part 11 through an insulating thermal conductive film. The first temperature sensor 41 is provided on the part of the structure of the first annular circuit board 31 located outside the piezoelectric ceramic 20. The detection result of the first temperature sensor 41 is actually the temperature of the inner ring part 11. Since the inner ring part 11 is made of metal, the thermal conductivity is good, so the detection result of the first temperature sensor 41 can reflect the temperature of the atomization part 12. When the atomization work is performed, it can be judged whether the atomization part 12 fails or has structural damage based on the comparison result between the temperature of the atomization part 12 detected by the first temperature sensor 41 and the calibrated temperature.

[0081] When the mesh nebulizer is used for medical atomization, the mesh nebulizer may include a breathing detection sensor probe, which can detect the patient's breathing pattern, thereby controlling the atomizer sheet 100 according to the breathing pattern to optimize the effect of atomization treatment.

[0082] like Figure 1 , Figure 2 and Figure 4As shown, the inner edge size of the first annular circuit board 31 is smaller than the inner edge size of the piezoelectric ceramic 20, and the outer edge size of the first annular circuit board 31 is larger than the outer edge size of the piezoelectric ceramic 20. The inner edge and the outer edge of the first annular circuit board 31 are both insulated and connected to the inner ring portion 11; for example, they can be connected by insulating glue, insulating coating or insulating film to achieve electrical isolation between the first annular circuit board 31 and the inner ring portion 11 to prevent current leakage and short circuit. A sealed cavity is formed between the first annular circuit board 31 and the inner ring portion 11, and the piezoelectric ceramic 20 is arranged in the sealed cavity to isolate the piezoelectric ceramic 20 from the external environment, especially from the liquid to be atomized, such as water and liquid medicine.

[0083] The first annular circuit board 31 includes a board body 311 and a conductive adhesive layer 312. The board body 311 has a circuit layer, and the circuit layer is electrically connected to an external power source and the conductive adhesive layer 312. The conductive adhesive layer 312 is filled between the board body 311 and the piezoelectric ceramic 20, and the conductive adhesive layer 312 is electrically connected to the board body 311 to form a negative electrode feeding point. The external power source transmits current to the conductive adhesive layer 312 through the circuit layer of the board body 311. The conductive adhesive layer 312 has conductivity and adhesion, and can pre-assemble the piezoelectric ceramic 20 and the board body 311 together, and can also improve the contact stability between the conductive feeding point and the upper end surface of the piezoelectric ceramic 20, and reduce the contact resistance.

[0084] The bottom surface of the plate body 311 can be copper-exposed to form a conductive feeding point. The conductive feeding point can be point-shaped, and the number of the conductive feeding points can be 1, 2, 3 or even more. The shape of the conductive feeding point can also be arc-shaped or ring-shaped. The present application does not limit this. It only requires that the conductive adhesive layer 312 can completely cover all the conductive feeding points and the shape of the conductive adhesive layer 312 matches the shape of the upper end surface of the piezoelectric ceramic 20.

[0085] In some embodiments, Figure 1 and Figure 3 As shown, the flexible circuit board 30 also includes a second annular circuit board 33 and a connecting portion 34, the connecting portion 34 connects the second annular circuit board 33 and the first annular circuit board 31; the second annular circuit board 33 and the first annular circuit board 31 are arranged at intervals along the axial direction of the inner ring portion 11, that is, the first annular circuit board 31 and the second annular circuit board 33 are arranged at intervals along the height direction, and an insulating layer 50 is filled between the first annular circuit board 31 and the second annular circuit board 33 to ensure electrical isolation, and only the connecting portion 34 is retained as a conducting path to prevent the current from accidentally flowing between the first annular circuit board 31 and the second annular circuit board 33, thereby ensuring the stability and safety of the circuit. Other functional devices, such as a second temperature sensor 43, a lack of liquid detection probe 44, etc., can be arranged on the second circuit board to achieve specific electrical functions.

[0086] The mesh nebulizer may include a second temperature sensor 43, which is electrically connected to the second annular circuit board 33. The second temperature sensor 43 may detect the temperature of the drug solution to prevent the drug from being inactivated due to high temperature during the nebulization process.

[0087] The mesh nebulizer may further include a liquid shortage detection probe 44, which is electrically connected to the second annular circuit board 33. The liquid shortage detection probe 44 has a spring needle. When the liquid medicine is sufficient, the spring needle can detect the signal transmitted from the atomizing diaphragm. When the liquid medicine is consumed, the sinusoidal signal disappears, and it can be determined that the liquid is shortage state.

[0088] like Figure 1 , Figure 2 and Figure 4 As shown, the first annular circuit board 31, the second annular circuit board 33, the connecting portion 34 and the extending portion 32 together constitute an integrated flexible circuit board 30. The first annular circuit board 31, the second annular circuit board 33, the connecting portion 34 and the extending portion 32 have a continuous circuit therein, which can eliminate the interfaces and connection points of different components.

[0089] The side wall of the insulating layer 50 may be provided with a limiting groove 51, and the connecting portion 34 is arranged in the limiting groove 51. The design of the limiting groove 51 can ensure that the connecting portion 34 will not be misplaced or offset during the manufacturing and assembly process, thereby improving the stability and reliability of the entire flexible circuit board 30;

[0090] The insulating layer 50 may be a silicone pad layer, a resin pad layer, etc., which is not limited in the present application.

[0091] In some embodiments, Figure 1 , Figure 3 and Figure 4 As shown, the base 10 also includes an outer ring portion 14 and a plurality of support portions 15. The outer ring portion 14 is used to connect or fix with an external structure, so as to install the atomizer sheet 100 in the medical atomization device. The outer ring portion 14 is arranged on the periphery of the inner ring portion 11, and the plurality of support portions 15 are arranged at intervals along the outer periphery of the inner ring portion 11, and each support portion 15 connects the inner ring portion 11 and the outer ring portion 14; the plurality of support portions 15 jointly effectively support the inner ring portion 11, forming a plurality of connection points, which can maintain the stable vibration of the inner ring portion 11. The plurality of connection points tend to be evenly distributed, thereby further improving the stability and vibration uniformity of the inner ring portion 11.

[0092] The inner ring portion 11 and the multiple support portions 15 are an integrated metal structure, which can improve the connection strength between the inner ring portion 11 and the support portion 15 to withstand high-frequency vibration. The outer ring portion 14 is an injection molded part, and the multiple support portions 15 have a partial structure embedded in the outer ring portion 14. The integrated metal structure composed of the inner ring portion 11 and the multiple support portions 15 can be fixed to the outer ring portion 14 by ultrasonic welding, or the integrated metal structure composed of the inner ring portion 11 and the multiple support portions 15 can be used as an insert for injection molding to form the outer ring portion 14. The outer ring portion 14 is connected to the multiple support portions 15 in sequence, so that a part of the support portion 15 is wrapped by the outer ring portion 14, thereby improving the connection stability between the support portion 15 and the outer ring portion 14, and preventing the support portion 15 and the inner ring portion 11 from shifting or falling off. In addition, the outer ring portion 14 of the injection molded part acts as an insulator, which can effectively isolate external electrical interference.

[0093] The outer ring portion 14 may be made of materials such as PP (polypropylene) and ABS (acrylonitrile-butadiene-styrene copolymer).

[0094] like Figure 1 and Figure 3 As shown, one of the support portions 15 can be used as the positive electrode pin 13, that is, one of the support portions 15 extends to the outer side wall protruding from the outer ring portion 14, and the support portion 15 with the protruding structure is the positive electrode pin 13. The portion of the support portion 15 protruding from the outer side wall of the outer ring portion 14 is used to be electrically connected to the positive electrode of the external power source, and the other portion of the support portion 15 can still play the role of supporting the inner ring portion 11.

[0095] The support part 15 is a thin and long metal sheet with certain elasticity. When the piezoelectric ceramic 20 drives the inner ring part 11 and the atomizing part 12 to vibrate, the support part 15 is elastic and can be deformed, thereby increasing the amplitude of the inner ring part 11 and the atomizing part 12.

[0096] In the first example of the above embodiment, part of the structure of the support portion 15 can be bent, and the bent portion can be L-shaped, Z-shaped, wavy, spiral or other complex shapes; the bent support portion 15 can further improve the elastic performance, which is beneficial to increase the amplitude of the inner ring portion 11.

[0097] In the second example of the above embodiment, part of the structure of the support portion 15 can also be arranged to be inclined relative to the radial direction of the inner ring portion 11. By increasing the length of the support portion 15, the elastic performance of the support portion 15 is further improved, thereby increasing the amplitude of the inner ring portion 11.

[0098] It should be noted that a plurality of continuous inclined structures can form a bent structure, that is, the first example and the second example can be combined with each other.

[0099] In a specific implementation, the support portion 15 includes three sections, the first section is connected to the outer wall of the inner ring portion 11, the third section is embedded in the inner ring portion 11 from the inner wall of the outer ring portion 14, there is a certain interval between the first section and the third section along the circumferential direction, and the first section and the third section both extend radially; the second section connects the first section and the third section, and the second section extends circumferentially.

[0100] In some embodiments, Figure 1 and Figure 2 As shown, the atomization part 12 can use a polymer membrane with atomization holes 121, such as a polyimide (PI) membrane, the edge of the polymer membrane is connected to the inner ring part 11 and covers the hollow area of ​​the inner ring part 11, the polymer membrane and the inner ring part 11 can be fixed by bonding, and the atomization holes 121 are evenly distributed on the membrane to atomize the liquid into tiny particles. The size, shape and distribution of these holes can be adjusted according to specific application requirements.

[0101] The atomizing part 12 may also be a metal diaphragm, such as a steel film, a palladium-nickel alloy film, a titanium-plated metal film, etc. The edge of the metal diaphragm is connected to the inner ring part 11 and covers the hollow area of ​​the inner ring part 11. The edge of the metal diaphragm is tightly connected to the inner ring part 11, usually by welding, bonding or other mechanical fixing methods. Or the metal diaphragm and the inner ring part 11 are an integral metal sheet. The metal diaphragm is located in the hollow area of ​​the inner ring part 11, and the metal diaphragm has an atomizing hole 121 for atomizing the liquid into tiny particles.

[0102] The present application also provides a method for controlling atomization. Figure 5 As shown, the atomization control method includes the following steps:

[0103] Step S10, obtaining the user's breathing data;

[0104] The user's breathing data is detected by a breathing sensor detection probe arranged in the breathing channel. The breathing data is essentially the value detected by the breathing sensor detection probe converted into a breathing flow rate value.

[0105] When the mesh atomizer starts running, it is necessary to calibrate the environmental zero point Pa and collect the environmental fluctuation value P.

[0106] When the device is turned on, the respiratory sensor value is sampled and converted into the respiratory flow rate value. After low-pass filtering, Pn=Praw-1*(1-Lp)+Praw*(Lp), where Praw is equal to the raw flow rate data, and Lp is the low-pass filter constant: P1~Pn, n sensor data (n is a constant), take the average as Pa as the reference value, when the Pn value is close to zero, the sensor is abnormal, and a prompt needs to be given in time.

[0107] The environmental fluctuation value P is due to Pmax - Pmin, where Pmax is the maximum value within P1 to Pn, and Pmin is the minimum value within P1 to Pn.

[0108] After the device is powered on, in the state of P1 to Pn, when Pn - Pn - 1 < P and at the same time Pn - Pn - 2 < P, and it lasts for a period of time Tp. Tp is a constant and should be greater than twice the minimum breathing frequency of the human body. The Pa reference value is recalibrated to prevent Pa errors and detection anomalies when the environment changes.

[0109] Step S20: Determine the user's breathing state and the end time point of exhalation for each breathing cycle based on the breathing data;

[0110] The user's breathing is divided into three stages. When Kn < 0 - P, it is the inhalation stage; when 0 - P ≤ Kn ≤ P, it is the breathing stop stage; when Kn > P, it is the exhalation stage. A continuous inhalation stage, stop stage, and exhalation stage form a breathing cycle. The end of the exhalation stage is the end time point of exhalation.

[0111] The breathing state can be divided into stable breathing and abnormal breathing according to the frequency corresponding to the breathing cycle.

[0112] Step S30: Control the operating state of the atomizing sheet based on the breathing state and the end time point of exhalation.

[0113] The solution of this application solves the problem that traditional atomizing devices cannot be adjusted according to the user's real - time breathing state by obtaining the user's breathing data in real - time and performing precise control based on this. Traditional atomizing devices mostly adopt a fixed working mode and cannot be dynamically adjusted according to the actual situation of the user. The solution of this application realizes personalized atomizing treatment through intelligent control, improving the utilization rate of drugs and the efficiency and effect of treatment.

[0114] In the actual application scenario, as Figure 6 shown, the magenta line is the raw flow rate data Praw, the dark blue square wave is the atomizing state, and the orange - yellow line is the breathing cycle; the user's breathing state is dynamically changing. Figure 6The first 4 respiratory cycles are in a stable breathing state, and the last respiratory cycle is in an abnormal breathing state. In this embodiment, by obtaining the user's breathing data, the user's breathing state can be monitored in real time, and based on this, it can be determined whether the user is in a stable breathing or abnormal breathing state. Then, the end time point of exhalation in each respiratory cycle can be determined, so as to achieve precise control of the operation state of the atomizing sheet. For example, when the user is in a stable breathing state, the end time point of exhalation and the end time point of inhalation in the next respiratory cycle can be predicted according to the breathing data, so as to control the atomizing sheet to switch to the first atomizing state and the stop state at appropriate time points. When the user is in an abnormal breathing state, the atomizing sheet can be controlled to switch to the second atomizing state at the start time point of exhalation in each respiratory cycle, and the atomizing sheet can be controlled to switch to the first atomizing state at the end time point of exhalation in each respiratory cycle.

[0115] Specifically, the breathing state of the user can be determined by the breathing frequency. In one embodiment, as Figure 7 shown, the determining the breathing state of the user based on the breathing data in step S20 specifically includes:

[0116] Step S21, determining the breathing frequency CPn corresponding to the current respiratory cycle based on the breathing data;

[0117] One respiratory cycle includes 3 respiratory phases. Inhalation phase: when Kn < 0 - P, it is the inhalation phase, and the timing is IT; Stop phase: when 0 - P < Kn < P, it is the breathing stop phase, and the timing is ST; Exhalation phase: when Kn > P, it is the exhalation state, and the timing is ET. The specific breathing frequency CPn can be converted through the instantaneous ET or IT, and the unit is times / min.

[0118] Step S22, determining the average breathing frequency Cpa corresponding to at least two consecutive respiratory cycles before the current respiratory cycle based on the breathing data;

[0119] The average breathing frequency Cpa per minute is calculated through the duration of ETn or ITn of more than two breaths.

[0120] Step S23, if |CPn - Cpa| ≤ CPp, determining that the breathing state of the user is stable breathing;

[0121] Step S24, if |CPn - Cpa| > CPp, determining that the breathing state of the user is abnormal breathing;

[0122] Wherein, CPp is a constant.

[0123] By comparing the difference between the current breathing frequency and the average breathing frequency, it is determined whether the user's breathing state is stable or abnormal. Specifically, when the difference is within the preset range CPp, it is determined to be stable breathing; otherwise, it is determined to be abnormal breathing. Through the above scheme, the breathing state can be accurately determined based on the user's breathing data. This judgment method utilizes the difference between the current breathing frequency and the average breathing frequency of the previous few cycles, ensuring the accuracy and timeliness of the judgment, thereby providing reliable basic data for atomization control.

[0124] The operating states of the atomizer sheet include a first atomization state, a second atomization state, and a stop state. When the atomizer sheet is in the first atomization state, the atomizer sheet operates at a first frequency; when the atomizer sheet is in the second atomization state, the atomizer sheet operates at a second frequency; wherein the first frequency is greater than the second frequency, that is, the operating frequency of the atomizer sheet in the first atomization state is greater than the operating frequency of the atomizer sheet in the second atomization state.

[0125] The atomizer operates at a high frequency in the first atomization state to ensure sufficient atomization effect; it operates at a lower frequency in the second state to reduce energy consumption or adapt to different treatment needs; it does not vibrate in the stop state to save energy and avoid excessive atomization. In this way, the atomizer can be precisely controlled in different states, thereby improving the efficiency and effect of atomization treatment.

[0126] The switching of different operating states of the atomizer sheet can be achieved by adjusting the driving voltage of the atomizer sheet or the frequency of the driving signal. Specifically, the selection of the first frequency can be determined according to the characteristics of the atomized liquid and the treatment needs to achieve the best atomization effect. The second frequency can be achieved by reducing the driving voltage or the frequency of the driving signal to reduce energy consumption. In the stop state, the atomizer sheet stops receiving the driving signal and thus stops vibrating.

[0127] This application achieves precise control of the atomization process by controlling the operating frequency of the atomizer in different states. Compared with the prior art, this application can not only adjust the atomization intensity and frequency according to actual needs, but also stop running when atomization is not needed, reducing energy consumption and extending the service life of the equipment. As a result, the efficiency and effect of atomization treatment have been significantly improved.

[0128] Based on this, Figure 8 As shown, the above step S30 may include:

[0129] Step S311, when the breathing state is stable breathing, predicting the next breathing cycle according to the breathing data;

[0130] When the user's breathing state is stable breathing, the user's breathing cycle tends to be stable under stable breathing conditions, and the next breathing cycle can be predicted based on the previous breathing cycle. Specifically, the next breathing cycle is predicted to include a continuous inhalation phase, a stop phase, and an exhalation phase, that is, the exhalation end time point and the inhalation end time point of the next breathing cycle can be obtained;

[0131] Step S312: calculating the atomization time point based on the exhalation end time point of the next respiratory cycle and the preset duration, and controlling the atomization sheet to switch to the first atomization state at the atomization time point.

[0132] The preset duration can be adjusted based on factors such as atomization efficiency and user comfort. The preset duration is the advance amount, that is, the control unit controls the atomizer to switch to the first atomization state in advance before the end of exhalation. By setting the atomization time point ahead of the end of exhalation time point, the atomization is started in advance at the atomization time point, thereby ensuring that the atomized drug can be provided when the user inhales, maximizing the absorption effect of the drug.

[0133] The preset duration can be a fixed value, and it is only necessary to ensure that the operating frequency of the atomizer is stabilized at the first frequency before entering the inhalation phase. In other embodiments, the preset duration can also be a variable value, which is set according to the average duration of at least two consecutive breathing cycles before the current breathing cycle. For example, the preset duration is proportional to the average, and this application does not limit this.

[0134] The duration of the breathing cycle can reflect the user's breathing depth. The drug atomization dose can be adjusted by increasing the atomization time. That is, the atomization dose can be dynamically adjusted according to the user's lung volume or breathing needs to prevent overdose or underdose of the drug and ensure that the patient receives appropriate dose treatment.

[0135] Step S313: Controlling the atomizer to switch to a stop state at the end time of the inhalation.

[0136] And at the end of inhalation, the control unit can also control the nebulizer to switch to a stop state to reduce unnecessary atomization and energy consumption, and reduce drug waste.

[0137] The above step S30 may further include:

[0138] When the breathing state is abnormal breathing, the nebulizer plate is controlled to switch to the second nebulizer state at the start time of exhalation in each breathing cycle, and the nebulizer plate is controlled to switch to the first nebulizer state at the end time of exhalation in each breathing cycle.

[0139] When the breathing state is abnormal breathing, the user's breathing frequency is unstable, so the atomization or frequency reduction operation is synchronously turned on according to the current breathing stage. Specifically, when the user's breathing enters the exhalation stage, that is, at the beginning of exhalation, the atomizer sheet is controlled to switch to the second atomization state. The frequency reduction operation of the atomizer sheet can reduce the temperature rise of the atomizer sheet and reduce the waste of medicine; when the user finishes exhaling, that is, at the end of exhalation, the atomizer sheet is controlled to switch to the atomization state to achieve rapid misting.

[0140] In this embodiment, the exhalation start time point and the exhalation end time point are used as the control reference instead of the inhalation stage, which avoids the situation of insufficient drug concentration at the beginning of inhalation and can increase the absorption effect of the drug.

[0141] This embodiment predicts the exhalation end time point and the inhalation end time point of the next respiratory cycle through respiratory data, and can realize accurate control of the operating state of the nebulizer sheet. Under the stable respiratory state, the nebulization time point is calculated by the preset time length, and the nebulizer sheet is controlled to switch to the first nebulization state at the nebulization time point, and the nebulizer sheet is controlled to switch to the stop state at the inhalation end time point, thereby reducing unnecessary drug waste. Under the abnormal respiratory state, the state switching of the nebulizer sheet is controlled by the exhalation start time point and the exhalation end time point of each respiratory cycle, ensuring that the nebulizer sheet switches between the second nebulization state and the nebulization state, ensuring that the nebulization process is synchronized with the breathing rhythm, and ensuring the continuity and effectiveness of the nebulization process.

[0142] In addition, if Fig. 9 As shown, the atomization control method also includes the following steps:

[0143] Step S40, obtaining the current temperature and operating status of the atomizer sheet;

[0144] The temperature of the atomizing plate is detected by the first temperature sensor.

[0145] Step S50: If the current temperature is lower than the first preset temperature, and the operating state is the stop state or the second atomization state, the atomization sheet is controlled to sweep the frequency for a first time before the atomization sheet is switched to the working state next time;

[0146] In the case of a fixed sweep time, if the ambient temperature is low, during the atomization start-up sweep process, the vibration of the atomizer sheet is affected by the low temperature, and the frequency swept out in the low temperature environment is often not the optimal frequency.

[0147] The first duration is positively correlated with the absolute difference between the current temperature and the first preset temperature. That is, by extending the frequency sweep time, the atomizer can sweep the frequency to reach the set first frequency.

[0148] For example, when the atomization part uses PI polymer membrane, when the temperature is below 15°C, the atomization frequency is affected to varying degrees. As the temperature rises, the impact gradually weakens and there is no obvious impact when the temperature is above 15°C.

[0149] Step S60: If the current temperature is lower than the first preset temperature and the operating state is the first atomization state, the atomization sheet is controlled to switch to the stop state, and the atomization sheet is controlled to sweep the frequency for a first time to switch to the first atomization state again;

[0150] That is, if the temperature of the atomizer sheet is continuously lower than the first preset temperature during the atomization process, the frequency sweep operation needs to be performed again, which is equivalent to controlling the atomizer sheet to restart, so as to ensure that the atomizer sheet operates at the first frequency to avoid insufficient drug inhalation by the user.

[0151] In this embodiment, the temperature and operating state of the atomizer sheet are monitored in real time, and the operating mode of the atomizer sheet is dynamically adjusted to ensure that the atomizer sheet can operate stably under different temperature conditions. By controlling the positive correlation between the duration of the sweep frequency operation and the temperature difference, the atomizer sheet can be effectively prevented from affecting normal operation due to too low a temperature, thereby improving the effect and safety of atomization therapy.

[0152] Furthermore, if Fig.10 As shown, after step S40, the following steps are also included:

[0153] Step S70: if the current temperature is higher than the second preset temperature and the operation state is the stop state, the cooling structure is turned on to cool the atomizing sheet and the liquid in contact with the atomizing sheet;

[0154] Step S80: If the current temperature is higher than the second preset temperature, and the operating state is the first atomization state or the second atomization state, the atomization sheet is controlled to operate at a reduced frequency, or a cooling structure is turned on to cool the atomization sheet and the liquid in contact with the atomization sheet.

[0155] When the atomizer operates at a temperature higher than the second preset temperature, it is easy for the atomizer to fail or be structurally damaged, resulting in circuit abnormalities. Therefore, when it is detected that the temperature is higher than the second preset temperature, different cooling measures are taken according to different operating states, such as reducing the frequency of operation or turning on the cooling structure to cool the atomizer and the liquid medicine in contact with the atomizer. This solves the operating safety and temperature control problems of the atomizer under high temperature conditions, ensures that the atomizer can still operate safely and effectively control the temperature under high temperature conditions, and avoids performance degradation or damage caused by overheating.

[0156] If the atomizer sheet continues to be in a state higher than the second preset temperature, it is determined that an abnormality has occurred in the atomization process, and atomization can be stopped in time to reduce the risk of medical accidents.

[0157] In addition, if Fig.11 As shown, the atomization control method also includes:

[0158] Step S91, obtaining the temperature of the liquid in contact with the atomizing sheet in real time;

[0159] The temperature of the liquid in contact with the atomizing sheet is detected by the second temperature sensor.

[0160] Step S92: If the temperature of the liquid is greater than or equal to a third preset temperature, the cooling structure is turned on to cool the atomizing plate and the liquid in contact with the atomizing plate.

[0161] By monitoring the temperature of the drug solution and starting the cooling structure when the temperature is too high, the problem of the drug solution being too high can be effectively solved, and the drug can be prevented from being inactivated due to high temperature during the atomization process, especially for the atomization equipment of sensitive drugs, ensuring that the activity of the drug is maintained. For example, antibiotics, hormones, proteins and peptides, antiviral drugs, etc.

[0162] The cooling structure may include a fan, a heat sink or other cooling device to reduce the temperature of the atomizing sheet and the liquid medicine, so as to ensure that the liquid medicine maintains a suitable temperature during the atomization process and prevent the medicine from becoming ineffective due to high temperature.

[0163] It should be noted that the atomization control method in the present application may also include solutions such as lack of liquid detection reminders commonly used by users in the field, such as detection through the spring needle of the lack of liquid detection probe; when the liquid is sufficient, the spring needle can detect the signal transmitted by the atomization diaphragm, and when the liquid is consumed, the sinusoidal signal disappears, and it can be judged that it is in a lack of liquid state. This application does not describe this in detail.

[0164] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A method for controlling atomization, characterized in that: include: Get the user's breathing data; Determine the user's breathing state and the exhalation end time point of each breathing cycle based on the breathing data; The breathing state includes stable breathing and abnormal breathing; The operating state of the nebulizer sheet is controlled based on the breathing state and the exhalation end time point.

2. The atomization control method according to claim 1, characterized in that: The controlling the operating state of the atomizer sheet based on the breathing state and the exhalation end time point includes: When the breathing state is stable breathing, predicting the next breathing cycle according to the breathing data; The atomization time point is calculated based on the exhalation end time point of the next breathing cycle and the preset duration, and the atomization sheet is controlled to switch to the first atomization state at the atomization time point.

3. The atomization control method according to claim 2, characterized in that: After controlling the atomizing sheet to switch to the first atomizing state at the atomizing time point, the method further includes: At the end of inhalation time of the next breathing cycle, the atomizer is controlled to switch to a stop state.

4. The atomization control method according to claim 1, characterized in that: The controlling the operating state of the atomizer sheet based on the breathing state and the exhalation end time point includes: When the breathing state is abnormal breathing, the atomizer sheet is controlled to switch to the second atomization state at the start time of exhalation in each breathing cycle, and the atomizer sheet is controlled to switch to the first atomization state at the end time of exhalation in each breathing cycle; The operating frequency of the atomizer sheet in the first atomization state is greater than the operating frequency of the atomizer sheet in the second atomization state.

5. The atomization control method according to claim 1, characterized in that: The determining the user's breathing state based on the breathing data comprises: Determine the respiratory frequency CPn corresponding to the current respiratory cycle based on the respiratory data; Determine, based on the respiratory data, an average respiratory frequency Cpa corresponding to at least two consecutive respiratory cycles before the current respiratory cycle; If |CPn-Cpa|≤CPp, the user's breathing state is determined to be stable breathing; If |CPn-Cpa|>CPp, it is determined that the user's breathing state is abnormal breathing; Where CPp is a constant.

6. The atomization control method according to claim 1, characterized in that: The method further comprises: Acquire the current temperature and operating state of the atomizer; the operating state includes a first atomization state, a second atomization state and a stop state; If the current temperature is lower than the first preset temperature, and the running state is the stop state or the second atomization state, the atomization sheet is controlled to sweep the frequency for a first time before it switches to the first atomization state next time; wherein the first time is positively correlated with the absolute difference between the current temperature and the first preset temperature; And / or, if the current temperature is lower than the first preset temperature and the operating state is the first atomization state; the atomization sheet is controlled to switch to the stop state, and the atomization sheet is controlled to sweep the frequency for a first time period to switch to the first atomization state again.

7. The atomization control method according to claim 6, characterized in that: After obtaining the current temperature and operating state of the atomizer sheet, the method further includes: If the current temperature is higher than the second preset temperature and the running state is the stopped state, the cooling structure is turned on to cool the atomizing sheet and the liquid in contact with the atomizing sheet; And / or, if the current temperature is higher than the second preset temperature, and the operating state is the first atomization state or the second atomization state; the atomization plate is controlled to operate at a reduced frequency, or a cooling structure is turned on to cool the atomization plate and the liquid in contact with the atomization plate.

8. The atomization control method according to any one of claims 1 to 7, characterized in that: The method further comprises: Acquiring in real time the temperature of the liquid in contact with the atomizing sheet; If the temperature of the liquid is greater than or equal to the third preset temperature, the cooling structure is turned on to cool the atomizing plate and the liquid in contact with the atomizing plate.

9. A mesh atomizer, characterized in that: The mesh atomizer comprises: a shell having a breathing passage; An atomizer sheet, comprising a base, a piezoelectric ceramic and a flexible circuit board, wherein the flexible circuit board comprises a first annular circuit board and a mounting portion connected as an integral structure, the piezoelectric ceramic is arranged between the base and the first annular circuit board, and the mounting portion extends into the breathing passage; A liquid supply mechanism, used for containing liquid and delivering the liquid to the atomizing sheet; A breathing sensing detection probe is arranged at a portion of the mounting portion located in the breathing passage, and the breathing sensing detection probe is used to detect breathing data of the user; A control unit is electrically connected to the first annular circuit board, and is used to determine the user's breathing state and the exhalation end time point of each breathing cycle based on the user's breathing data, and control the output power of the piezoelectric ceramic based on the breathing state and the exhalation end time point to adjust the operating state of the atomizer.

10. The mesh atomizer according to claim 9, characterized in that: The mesh atomizer comprises a first temperature sensor, the first temperature sensor is used to detect the temperature of the base, and the temperature sensor is arranged on the first ring-shaped circuit board; and / or, The flexible circuit board also includes a second annular circuit board and a connecting portion, wherein the connecting portion connects the second annular circuit board and the first annular circuit board; the second annular circuit board and the first annular circuit board are arranged at an axial interval along the base, and an insulating layer is filled between the second annular circuit board and the first annular circuit board; the mesh atomizer also includes a second temperature sensor electrically connected to the second annular circuit board, and the second temperature sensor is used to detect the temperature of the liquid in contact with the atomizing sheet.

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