CN114588417B - Atomizing assembly and electronic atomizing device - Google Patents
Atomizing assembly and electronic atomizing device Download PDFInfo
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- CN114588417B CN114588417B CN202011407515.5A CN202011407515A CN114588417B CN 114588417 B CN114588417 B CN 114588417B CN 202011407515 A CN202011407515 A CN 202011407515A CN 114588417 B CN114588417 B CN 114588417B
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- 238000000889 atomisation Methods 0.000 claims abstract description 89
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 239000012528 membrane Substances 0.000 claims abstract description 59
- 239000003814 drug Substances 0.000 claims abstract description 27
- 230000005489 elastic deformation Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 239000002184 metal Substances 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 208000023504 respiratory system disease Diseases 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 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
-
- 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
- A61M15/00—Inhalators
- A61M15/0001—Details of inhalators; Constructional features thereof
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pulmonology (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses an atomization assembly and an electronic atomization device, wherein the atomization assembly comprises a microporous atomization sheet and a fixing piece; the micropore area on the micropore atomization sheet is provided with a plurality of micropores; the fixing piece comprises an elastic film, the elastic film and the micropore atomization sheet are matched to form an atomization bin, and the micropore area of the micropore atomization sheet is exposed to the atomization bin; the elastic membrane can elastically deform along with the change of the amount of liquid to be atomized in the atomization bin, so that the volume of the atomization bin is adjusted. Through setting up the elastic membrane, what according to waiting to atomize the liquid volume takes place elastic deformation, realize adjusting atomizing storehouse volume size for the liquid medicine volume in the atomizing storehouse still can contact with micropore atomizing piece when less, furthest's reduction atomizing accomplishes the residual volume of the liquid medicine in the atomizing storehouse, can reach better atomization effect.
Description
Technical Field
The invention relates to the technical field of atomizers, in particular to an atomizing assembly and an electronic atomizing device.
Background
Among respiratory disease treatment methods, aerosol inhalation treatment is an important and effective treatment method. The aerosol inhalation treatment is to atomize the liquid medicine into tiny liquid drops by an atomizer, and the patient inhales the medicine into the respiratory tract and the lung by breathing, so that the liquid medicine is deposited in the respiratory tract or the lung, thereby achieving the purpose of painless, rapid and effective treatment.
The traditional atomizer is used for loading the liquid medicine and the volume of the atomizing bin is generally fixed, and after a period of atomization, partial liquid medicine can not contact with the atomizing sheet, so that partial liquid medicine can not be atomized and remains in the atomizing bin, a better atomization effect can not be achieved, and an expected treatment effect can not be achieved.
Disclosure of Invention
In view of the above, the present invention provides an atomization assembly and an electronic atomization device, which solve the technical problem that a large amount of liquid medicine remains in an atomization bin in the prior art.
In order to solve the technical problems, the first technical scheme provided by the invention is as follows: there is provided an atomizing assembly comprising: microporous atomizing sheet and fixing piece; the micropore area on the micropore atomization sheet is provided with a plurality of micropores; the fixing piece comprises an elastic film, the elastic film is matched with the microporous atomizing sheet to form an atomizing bin, and a microporous region of the microporous atomizing sheet is exposed to the atomizing bin; the elastic membrane can elastically deform along with the change of the amount of liquid to be atomized in the atomization bin, so that the volume of the atomization bin is adjusted.
The first surface of the fixing piece is provided with a containing groove, the microporous atomizing sheet is arranged in the containing groove, and the elastic membrane and the microporous atomizing sheet are arranged at intervals.
The side wall of the accommodating groove is provided with an annular groove, and the edge of the microporous atomizing sheet is embedded into the annular groove.
The bottom wall of the accommodating groove is provided with a groove, the groove and the microporous atomization sheet are surrounded to form the atomization bin, and the bottom wall of the groove is the elastic membrane.
The second surface of the fixing piece, which is opposite to the first surface, is provided with a deformation groove which is used for providing space for elastic deformation of the elastic membrane; the bottom wall of the groove is also the bottom wall of the deformation groove.
Wherein, further be provided with the buffer tank on the diapire of holding groove, the buffer tank encircles the recess sets up.
The side surface of the buffer groove, which is far away from the groove, is flush with the side surface of the accommodating groove.
The device further comprises an atomization seat, wherein a mounting groove is formed in the atomization seat, and the fixing piece is mounted in the mounting groove; and a sealing piece is arranged between the non-microporous area of the microporous atomizing sheet and the mounting groove on one side of the microporous atomizing sheet away from the elastic membrane.
Wherein, further comprises a needle tube; the atomizing seat is provided with a mounting hole which is used for fixing the needle tube; the side wall of the fixing piece is provided with a through hole; one end of the needle tube for pumping out liquid is inserted into the atomization bin through the mounting hole and the through hole.
The elastic membrane is made of silica gel, and the thickness of the bottom wall of the elastic membrane is 0.1mm-0.2mm.
Wherein the elastic membrane is round in shape, and the diameter of the elastic membrane is 5mm-10mm.
The microporous atomizing sheet comprises a raised area and a flat area, and the distance between the surface of the flat area of the microporous atomizing sheet, which is close to the elastic membrane, and the elastic membrane is 0.5mm-2mm.
In order to solve the technical problems, a second technical scheme provided by the invention is as follows: there is provided an electronic atomizing device comprising: the atomization assembly comprises an atomization assembly, a liquid reservoir and a control assembly, wherein the atomization assembly is any one of the atomization assemblies.
The invention has the beneficial effects that: unlike the prior art, the atomizing assembly herein comprises a microporous atomizing sheet and a fixture; the micropore area on the micropore atomization sheet is provided with a plurality of micropores; the fixing piece comprises an elastic film, the elastic film and the micropore atomization sheet are matched to form an atomization bin, and the micropore area of the micropore atomization sheet is exposed to the atomization bin; the elastic membrane can elastically deform along with the change of the amount of liquid to be atomized in the atomization bin, so that the volume of the atomization bin is adjusted. Through setting up the elastic membrane, what according to waiting to atomize the liquid volume takes place elastic deformation, realize adjusting atomizing storehouse volume size for the liquid medicine volume in the atomizing storehouse still can contact with micropore atomizing piece when less, furthest's reduction atomizing accomplishes the residual volume of the liquid medicine in the atomizing storehouse, can reach better atomization effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronic atomizing device provided by the invention;
FIG. 2 is a schematic view of the structure of an atomizing assembly provided by the present disclosure;
FIG. 3a is a schematic view of a fixture in an atomizing assembly according to the present disclosure;
FIG. 3b is a schematic cross-sectional view of another embodiment of a mount in an atomizing assembly provided by the present disclosure;
FIG. 4 is a schematic view of an assembly structure of a fixing member and a microporous atomizing sheet in an atomizing assembly according to the present invention;
fig. 5 is a schematic diagram of the structure of the atomization assembly before and after the volume change of the atomization bin.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present invention, but do not limit the scope of the present invention. Likewise, the following examples are only some, but not all, of the examples of the present invention, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present invention.
The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. The terms "comprising" and "having" and any variations thereof in embodiments of the present invention are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Fig. 1 is a schematic structural diagram of an electronic atomization device according to the present invention.
The electronic atomization device can be used for atomizing liquid matrixes such as liquid medicine and the like, and is applied to medical equipment for treating upper and lower respiratory diseases so as to atomize medical medicines. The electronic atomizing device comprises an atomizing assembly 1, a liquid reservoir 2 and a control assembly 3. In use, the atomizing assembly 1 and the reservoir 2 are mounted on the control assembly 3. Wherein the liquid reservoir 2 is used for storing liquid medicine; the atomizing assembly 1 is used for atomizing liquid in the liquid reservoir 2; the control assembly 3 comprises a controller 31, and the control assembly 3 is used for delivering the liquid in the liquid reservoir 2 to the atomizing assembly 1 and controlling the operation of the atomizing assembly 1.
The atomizing assembly 1, the liquid reservoir 2 and the control assembly 3 can be integrally arranged, can be detachably connected and are designed according to specific needs.
Referring to fig. 2 and fig. 3a, fig. 2 is a schematic structural view of an atomization assembly provided by the present invention except for other parts of a housing, and fig. 3a is a schematic structural view of a fixing member in the atomization assembly provided by the present invention.
The atomizing assembly 1 includes a housing, a microporous atomizing sheet 10 disposed within the housing, and a fixture 20. The microporous atomizing sheet 10 comprises a piezoelectric ceramic sheet, a metal substrate, a first electrode and a second electrode, wherein the first electrode is electrically connected with the piezoelectric ceramic sheet, the second electrode is electrically connected with the metal substrate, and the first electrode and the second electrode are electrically connected with the controller 31. The metal substrate is a circular sheet, the piezoelectric ceramic sheet is a circular ring, and the diameter of the metal substrate is larger than the inner diameter of the piezoelectric ceramic sheet. The central area of the piezoelectric ceramic plate is provided with a through hole, and the area of the metal substrate corresponding to the central area of the piezoelectric ceramic plate is provided with a plurality of micropores; i.e. the microporous atomizer plate 10 comprises a microporous region provided with a plurality of micropores. In this embodiment, a protrusion is formed in the central area of the metal substrate, so as to provide a larger adhesion surface for the liquid to be atomized, thereby increasing the adhesion force of the liquid to be atomized. In other embodiments, the metal substrate may be a planar structure, which is selected according to need, and this application is not limited thereto. The mount 20 includes an elastic membrane 30, the elastic membrane 30 cooperates with the microporous nebulizing sheet 10 to form the nebulizing cartridge 11, and the microporous region of the microporous nebulizing sheet 10 is exposed to the nebulizing cartridge 11. The elastic membrane 30 can elastically deform along with the change of the amount of liquid to be atomized in the atomization bin 11, so that the space volume of the atomization bin 11 is adjusted, the liquid medicine in the atomization bin 11 can still be in contact with the microporous atomization sheet 10 when the amount of the liquid medicine is small, the residual amount of the liquid medicine in the atomization bin 11 after atomization is reduced to the maximum extent, and a good atomization effect can be achieved.
The shell is further internally provided with an air outlet channel and is communicated with the atomization bin 11, the end part of the shell forms a suction nozzle part, the suction nozzle part is communicated with the air outlet channel, and a user sucks atomized liquid medicine in the atomization bin 11 through the suction nozzle part.
The fixing piece 20 comprises a first surface 21 and a second surface 22 opposite to the first surface 21, wherein a containing groove 211 is formed in the first surface 21, the microporous atomizing sheet 10 is arranged in the containing groove 211, and the shape of the containing groove 211 is matched with that of the microporous atomizing sheet 10; the elastic film 30 is disposed at a distance from the microporous atomizing sheet 10, and in this embodiment, the elastic film 30 is disposed on a side of the microporous atomizing sheet 10 near the bottom wall of the accommodating groove 211.
In this embodiment, the microporous atomizing sheet 10 is circular in shape, the receiving groove 211 is circular in cross-section, the side wall of the receiving groove 211 is further provided with an annular groove 212, and the edge of the microporous atomizing sheet 10 is embedded in the annular groove 212, that is, the piezoelectric ceramic sheet portion of the microporous atomizing sheet 10 is disposed in the annular groove 212. In order to facilitate the fixation of the microporous atomizing sheet 10 in the accommodating groove 211, a notch 215 is provided on a side wall of the accommodating groove 211, specifically, the notch 215 is formed on a side wall of the annular groove 212 near the opening side of the accommodating groove 211. In another embodiment, the microporous atomizing sheet 10 may be fixed in the accommodating groove 211 by an interference fit, that is, the annular groove 212 is not required to be provided on the side wall of the accommodating groove 211, and the diameter of the accommodating groove 211 is the same as the outer diameter of the microporous atomizing sheet 10.
In this embodiment, a groove 213 is disposed on the bottom wall of the accommodating groove 211, the groove 213 and the microporous atomization sheet 10 enclose to form an atomization chamber 11, and the bottom wall of the groove 213 is an elastic film 30. By arranging the side surface of the annular groove 212 close to the bottom wall of the accommodating groove 211 and the surface of the bottom wall of the accommodating groove 211 close to the microporous atomizing sheet 10 to be coplanar, the microporous atomizing sheet 10 is partially abutted against the side wall of the groove 213, so that the side wall of the groove 213 plays a role in sealing the atomizing bin 11 to a certain extent. In an embodiment, a deformation groove 214 is further disposed on the second surface 22 of the fixing member 20, and the bottom wall of the groove 213 is also the bottom wall of the deformation groove 214. The deformation groove 214 is provided for providing a space for the elastic membrane 30 to elastically deform; that is, by providing the deformation groove 214, the deformation groove 214 and the groove 213 share the bottom wall, so that the elastic membrane 30 can elastically deform in a direction away from the microporous atomization sheet 10, and the space volume of the atomization bin 11 is adjusted.
Referring to fig. 3b, a schematic cross-sectional view of another embodiment of a fixture in an atomization assembly according to the present invention is shown.
In another embodiment, the plane of the annular groove 212 near the side surface of the bottom wall of the accommodating groove 211 is located above the bottom wall of the accommodating groove 211 and is spaced from the bottom wall of the accommodating groove 211, at this time, the bottom wall of the accommodating groove 211 is an elastic film 30, the microporous atomizing sheet 10 and the accommodating groove 211 define an atomizing bin 11, and the space volume of the atomizing bin 11 can be adjusted by elastic deformation of the elastic film 30 (the bottom wall of the accommodating groove 211).
Further, a buffer groove 216 is provided on the bottom wall of the accommodating groove 211, and the buffer groove 216 is provided around the groove 213, i.e., the buffer groove 216 is annular in shape. In an embodiment, the buffer slot 216 is annular and has the same depth direction as the accommodating slot 211. By arranging the buffer groove 216 on the fixing piece 20, the absorption of the vibration energy of the microporous atomizing sheet 10 by the fixing piece 20 is reduced when the microporous atomizing sheet 10 works, so that the vibration amplitude of the metal substrate of the microporous atomizing sheet 10 can reach a preset amplitude, and a good atomizing effect is realized. It can be understood that if the buffer slot 216 is not provided on the bottom wall of the accommodating slot 211, the metal substrate of the microporous atomizing sheet 10 is not provided with the space capable of elastic deformation in the vibration process, so that the vibration energy of the microporous atomizing sheet 10 is absorbed, the vibration amplitude of the metal substrate becomes smaller, the predetermined vibration amplitude cannot be achieved, and the atomization effect is affected.
The depth of the buffer groove 216 is selected as needed to reduce the absorption of vibration energy of the microporous atomizer plate 10 by the fixing member 20. In this embodiment, the depth of the buffer slot 216 is greater than the depth of the groove 213, so as to reduce the absorption of the vibration energy of the microporous atomizing sheet 10 by the fixing member 20 to the maximum extent, and provide enough deformation space for the vibration process of the microporous atomizing sheet 10, so that the vibration of the microporous atomizing sheet 10 is close to an ideal state.
In the present embodiment, the side of the buffer groove 216 away from the recess 213 is flush with the inner surface of the side wall of the receiving groove 211. In other embodiments, a step is formed between the surface of the side wall of the buffer slot 216 away from the recess 213 and the inner surface of the side wall of the accommodating slot 211, and the size of the step is designed according to the requirement, so that only the buffer slot 216 is required to provide a deformation space, so that the absorption of the vibration energy of the microporous atomizing sheet 10 by the fixing piece 20 is reduced, and a better atomizing effect can be achieved.
In this embodiment, the fixing member 20 is integrally formed, i.e., the elastic film 30 is a part of the fixing member 20. The microporous atomizing sheet 10 is fixed by the fixing member 20, and the microporous atomizing sheet 10 is disposed close to the elastic membrane 30. In other embodiments, the elastic membrane 30 may be a separate elastic membrane 30, and the microporous atomizing sheet 10 and the elastic membrane 30 are directly and fixedly mounted on the fixing member 20, so long as the elastic membrane 30 is disposed close to the microporous atomizing sheet 10.
With continued reference to fig. 2, the atomizing assembly 1 further includes an atomizing base 40, wherein a mounting groove 41 is provided in the atomizing base 40, and the fixing member 20 is mounted in the mounting groove 41. The atomizing base 40 includes a first fixing base 42 and a second fixing base 43; the first fixing seat 42 has a ring structure, and can expose the micropore area of the micropore atomization sheet 10; the first fixing base 42 has a ring structure, and can expose the area where the elastic membrane 30 is located. The first fixing seat 42 is provided with a first recess 421 to form an upper portion of the mounting groove 41; the second fixing seat 43 is provided with a second recess 431 to form a lower portion of the mounting groove 41; i.e. the first recess 421 cooperates with the second recess 431 to form the mounting groove 41.
Fig. 4 is a schematic diagram of an assembly structure of a fixing member and a microporous atomizing sheet in an atomizing assembly according to the present invention.
In this embodiment, the edge of the microporous atomization sheet 10 is embedded in the annular groove 212, the piezoelectric ceramic sheet part of the microporous atomization sheet 10 is disposed in the annular groove 212, and the accommodating groove 211 exposes part of the piezoelectric ceramic sheet of the microporous atomization sheet 10; that is, the receiving groove 211 exposes a portion of the non-microporous region of the microporous atomization sheet 10. Referring to fig. 2, a sealing member 50 is disposed between the exposed non-microporous region of the microporous atomizing sheet 10 and the bottom wall of the first recess 421, i.e., between the non-microporous region of the microporous atomizing sheet 10 and the bottom wall of the mounting groove 41, on the side of the microporous atomizing sheet 10 remote from the elastic membrane 30, and the sealing member 50 is used to prevent leakage of the atomizing chamber 11. The first fixing seat 42 is used for fixing the microporous atomizing sheet 10 in a pressing manner through the sealing piece 50, so that the pressing force between the microporous atomizing sheet 10 and the elastic membrane 30 is enhanced, the sealing effect between the microporous atomizing sheet 10 and the elastic membrane 30 is further enhanced, the sealing performance of the atomizing bin 11 is enhanced, and the liquid medicine is prevented from leaking out of the atomizing bin 11. The sealing element 50 is made of silica gel, rubber and the like, and the sealing element 50 is of an annular structure; the thickness of the sealing member 50 plus the thickness of the microporous atomizing sheet 10 is the same as the depth of the accommodating groove 211, and specifically the thickness of the sealing member 50 is set in cooperation with the thickness of the microporous atomizing sheet 10.
Referring to fig. 2, the atomizing assembly 1 further includes a needle cannula 60, the needle cannula 60 being adapted to pump liquid from the reservoir 2 to the atomizing cartridge 11. Specifically, the atomizing base 40 is provided with a mounting hole 44, and the mounting hole 44 is used for fixing the needle tube 60; the mounting hole 44 is disposed on a sidewall of the mounting groove 41, for example, the mounting hole 44 is disposed on a sidewall of the first recess 421, or the mounting hole 44 is disposed on a sidewall of the second recess 431, or the sidewall of the first recess 421 and the sidewall of the second recess 431 cooperate to form the mounting hole 44; the side wall of the fixing piece 20 is provided with a through hole 23, the plane of the through hole 23 is positioned between the microporous atomizing sheet 10 and the elastic membrane 30, and the needle tube 60 is inserted into the atomizing bin 11 through the through hole 23. It will be appreciated that the mounting hole 44 communicates with the through hole 23, and that the mounting hole 44 and the through hole 23 extend in the same direction, and that one end of the needle tube 60 for pumping out liquid is inserted into the atomizing chamber 11 through the mounting hole 44 and the through hole 23, and the other end extends out of the mounting groove 41 for insertion into the reservoir 2.
In this embodiment, the elastic membrane 30 is made of a material that can be deformed and restored, such as silica gel or rubber. The elastic film 30 has a thickness of 0.1mm to 0.2mm; too thick a thickness of the elastic membrane 30 (e.g., a thickness greater than 0.2 mm) may result in the elastic membrane 30 failing to elastically deform; too thin a thickness (e.g., a thickness of less than 0.1 mm) of the elastic film 30 may cause a phenomenon in which the elastic film 30 is not strong enough to be broken; the thickness of the elastic film 30 is preferably 0.15mm. The elastic membrane 30 has a diameter of 5mm to 10mm; the excessively large diameter (for example, the diameter is larger than 10 mm) of the elastic membrane 30 can cause that part of liquid in the atomization bin 11 cannot contact with the micropore area of the micropore atomization sheet 10 to be atomized, so that the liquid medicine in the atomization bin 11 remains, and the accurate control of the atomization dosage by the electronic atomization device is affected; too small a diameter (e.g., less than 5mm in diameter) of the elastic membrane 30, the elastic membrane 30 cannot be elastically deformed to form a bulge, and adjustment of the volume in the atomization bin 11 cannot be achieved; the diameter of the elastic membrane 30 is preferably 7mm. Typically, microporous atomizer sheet 10 comprises a raised region in which a plurality of micropores are disposed, i.e., a microporous region is located in the raised region, and a planar region; the distance between the surface of the flat plate area of the microporous atomizing sheet 10, which is close to the elastic membrane 30, and the elastic membrane 30 is 1.5mm-2.0mm; the distance between the elastic membrane 30 and the microporous atomizing sheet 10 is too far (for example, the distance is greater than 2 mm), so that part of liquid in the atomizing bin 11 cannot be in contact with the microporous region of the microporous atomizing sheet 10 to be atomized, and the liquid medicine in the atomizing bin 11 remains, so that the accurate control of an atomization dosage by an electronic atomization device is affected; the distance between the elastic membrane 30 and the microporous nebulizing sheet 10 is too close (e.g., less than 1.5 mm), which is inconvenient for the needle cannula 60 to be inserted into the nebulizing cartridge 11 to pump the liquid in the reservoir 2; the distance between the elastic membrane 30 and the microporous atomizing sheet 10 is preferably 1.0mm.
Fig. 5 is a schematic diagram showing the structure of the atomization assembly before and after the volume change of the atomization chamber.
In the use, needle tubing 60 pumps the liquid pump in the reservoir 2 to atomizing storehouse 11 in, and at this moment, the more of waiting to atomize liquid medicine volume in the atomizing storehouse 11, elastic membrane 30 takes place elastic deformation to the direction of keeping away from micropore atomizing piece 10, and elastic membrane 30 forms the convex closure to the direction of keeping away from micropore atomizing piece 10 promptly, and atomizing storehouse 11's space volume is great. Along with the work of the microporous atomizing sheet 10, the liquid to be atomized in the atomizing bin 11 gradually decreases, the pressure of the liquid to the elastic membrane 30 gradually decreases correspondingly, the elastic membrane 30 gradually moves to the direction close to the microporous atomizing sheet 10 by utilizing the self elasticity so as to restore the original state, the space volume of the atomizing bin 11 gradually decreases, the liquid in the atomizing bin 11 can always contact the microporous atomizing sheet 10, the residual quantity of the liquid medicine to be atomized in the atomizing bin 11 is reduced, and further the dosage of the atomized liquid medicine can be accurately controlled.
The atomizing assembly comprises a microporous atomizing sheet and a fixing piece; the micropore area on the micropore atomization sheet is provided with a plurality of micropores; the fixing piece comprises an elastic film, the elastic film and the micropore atomization sheet are matched to form an atomization bin, and the micropore area of the micropore atomization sheet is exposed to the atomization bin; the elastic membrane can elastically deform along with the change of the amount of liquid to be atomized in the atomization bin, so that the volume of the atomization bin is adjusted. Through setting up the elastic membrane, what according to waiting to atomize the liquid volume takes place elastic deformation, realize adjusting atomizing storehouse volume size for the liquid medicine volume in the atomizing storehouse still can contact with micropore atomizing piece when less, furthest's reduction atomizing accomplishes the residual volume of the liquid medicine in the atomizing storehouse, can reach better atomization effect.
The foregoing description is only a partial embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. An atomization assembly is applied to an electronic atomization device, and the electronic atomization device comprises a liquid reservoir for storing liquid medicine; the atomizing assembly is used for atomizing the liquid in the liquid reservoir; characterized by comprising the following steps:
the microporous atomizing device comprises a microporous atomizing sheet, wherein a microporous region on the microporous atomizing sheet is provided with a plurality of micropores;
the fixing piece comprises an elastic film, wherein the elastic film is matched with the microporous atomizing sheet to form an atomizing bin, and a microporous region of the microporous atomizing sheet is exposed to the atomizing bin;
the first surface of the fixing piece is provided with a containing groove, the microporous atomizing sheet is arranged in the containing groove, and the elastic membrane and the microporous atomizing sheet are arranged at intervals; a groove is formed in the bottom wall of the accommodating groove, the groove and the microporous atomization sheet are surrounded to form the atomization bin, and the bottom wall of the groove is the elastic membrane; the microporous atomizing sheet comprises a convex area and a flat area, and the distance between the surface of the flat area of the microporous atomizing sheet, which is close to the elastic membrane, and the elastic membrane is 1.5mm-2mm;
the elastic membrane can elastically deform along with the change of the amount of liquid to be atomized in the atomization bin, so that the volume of the atomization bin is adjusted.
2. The atomizing assembly of claim 1, wherein an annular groove is provided in a sidewall of the receiving groove, and an edge of the microporous atomizing sheet is embedded in the annular groove.
3. The atomizing assembly of claim 1, wherein a deformation groove is provided on a second surface of the fixture opposite the first surface for providing a space for elastic deformation of the elastic membrane; the bottom wall of the groove is also the bottom wall of the deformation groove.
4. The atomizing assembly of claim 1, wherein the bottom wall of the receiving slot is further provided with a buffer slot disposed around the recess.
5. The atomizing assembly of claim 4, wherein a side of the buffer slot remote from the recess is flush with a side of the receiving slot.
6. The atomizing assembly of claim 1, further comprising an atomizing base having a mounting slot disposed therein, the securing member being mounted in the mounting slot; and a sealing piece is arranged between the non-microporous area of the microporous atomizing sheet and the mounting groove on one side of the microporous atomizing sheet away from the elastic membrane.
7. The atomizing assembly of claim 6, further comprising a needle cannula; the atomizing seat is provided with a mounting hole which is used for fixing the needle tube; the side wall of the fixing piece is provided with a through hole; one end of the needle tube for pumping out liquid is inserted into the atomization bin through the mounting hole and the through hole.
8. The atomizing assembly according to claim 1, wherein the elastic membrane is made of silica gel, and the thickness of the bottom wall of the elastic membrane is 0.1mm-0.2mm.
9. The atomizing assembly of claim 1, wherein the elastic membrane is circular in shape and has a diameter of 5mm to 10mm.
10. An electronic atomizing device, comprising an atomizing assembly, a liquid reservoir and a control assembly, wherein the atomizing assembly is an atomizing assembly according to any one of claims 1-9.
Priority Applications (1)
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