CN116998768A - Electronic atomization device and liquid storage atomization assembly and nozzle thereof - Google Patents
Electronic atomization device and liquid storage atomization assembly and nozzle thereof Download PDFInfo
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- CN116998768A CN116998768A CN202210468920.0A CN202210468920A CN116998768A CN 116998768 A CN116998768 A CN 116998768A CN 202210468920 A CN202210468920 A CN 202210468920A CN 116998768 A CN116998768 A CN 116998768A
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- 239000007788 liquid Substances 0.000 title claims abstract description 292
- 238000000889 atomisation Methods 0.000 title claims abstract description 67
- 238000003860 storage Methods 0.000 title claims abstract description 65
- 239000011159 matrix material Substances 0.000 claims abstract description 47
- 239000002245 particle Substances 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims abstract description 6
- 230000001133 acceleration Effects 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 15
- 238000002663 nebulization Methods 0.000 claims description 15
- 210000002268 wool Anatomy 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 19
- 239000012530 fluid Substances 0.000 description 14
- 239000000443 aerosol Substances 0.000 description 6
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/10—Devices using liquid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/42—Cartridges or containers for inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/48—Fluid transfer means, e.g. pumps
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/51—Arrangement of sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
Abstract
The invention relates to an electronic atomization device, a liquid storage atomization assembly and a nozzle thereof, wherein a liquid storage cavity for storing liquid matrixes, an airflow channel for circulating high-speed airflow and a resistance liquid supply channel for communicating the liquid storage cavity with the airflow channel are formed in the liquid storage atomization assembly. The high-speed air flow flowing in the air flow channel enables negative pressure to be generated in the air flow channel, the negative pressure can suck out the liquid matrix in the liquid storage cavity to the air flow channel, and the liquid matrix entering the air flow channel is atomized under the action of the high-speed air flow flowing in the air flow channel. The resistance liquid supply channel comprises a liquid supply end section close to the air flow channel, and the liquid supply end section is a capillary channel. The continuously flowing liquid matrix is atomized into liquid particles by high-speed airflow assistance, so that low-temperature atomization can be realized. In addition, capillary force in the liquid supply end section can reduce backflow of liquid matrix to the liquid storage cavity when the suction is finished, and liquid supply delay in the next suction is prevented.
Description
Technical Field
The invention relates to the field of atomization, in particular to an electronic atomization device, a liquid storage atomization assembly and a nozzle thereof.
Background
The existing electronic atomization device mainly adopts porous ceramics or porous mediums such as porous cotton and the like to combine with heating components to heat and atomize. Because the heating temperature is higher in atomization, when the liquid matrix is not enough to be supplied, a small amount of liquid matrix on the heating component is insufficient to consume the electric energy released by the heating component, so that the temperature of the heating surface is further increased, further thermal cracking of the liquid matrix is further enhanced, even carbon deposition and dry burning are formed, and the formed aerosol is easy to generate burnt smell, so that the taste is obviously deteriorated.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides an improved liquid storage atomization assembly and nozzle and an electronic atomization device with the liquid storage atomization assembly or the nozzle.
The technical scheme adopted for solving the technical problems is as follows: a liquid storage atomization assembly is constructed, wherein a liquid storage cavity for storing liquid matrixes, an airflow channel for circulating high-speed airflow and a resistance liquid supply channel for communicating the liquid storage cavity with the airflow channel are formed in the liquid storage atomization assembly; the high-speed air flow flowing in the air flow channel enables negative pressure to be generated in the air flow channel, the negative pressure can suck out the liquid matrix in the liquid storage cavity to the air flow channel, and the liquid matrix entering the air flow channel is atomized under the action of the high-speed air flow flowing in the air flow channel;
the resistance liquid supply channel comprises a liquid supply end section close to the air flow channel, and the liquid supply end section is a capillary channel.
In some embodiments, the liquid matrix in the liquid supply end segment is stressed at the gas-liquid interface to satisfy ΔP when the high-speed gas flow stops flowing in the gas flow channel Wool (fur) Not less than deltaP; wherein DeltaP Wool (fur) And delta P is negative pressure in the liquid storage cavity-gravity of the liquid matrix in the liquid storage cavity, which is the capillary force in the liquid supply end section.
In some embodiments, the liquid supply end section is a linear channel, and the extending direction of the liquid supply end section is perpendicular to the extending direction of the airflow channel.
In some embodiments, the hydraulic diameter of the liquid supply end segment is less than or equal to 0.3mm.
In some embodiments, the resistive fluid supply channel further comprises a body segment communicating the fluid supply end segment and the fluid reservoir, the body segment having a cross-sectional area greater than a cross-sectional area of the fluid supply end segment.
In some embodiments, the body section has a cross-sectional area in the range of 0.09mm 2 ～0.16mm 2 。
In some embodiments, the airflow channel comprises an air supply channel and an atomization cavity, the atomization cavity is respectively communicated with the air supply channel and the liquid supply end section, the atomization cavity is close to one end face of the air supply channel to form an atomization surface, the atomization surface is provided with an atomization opening communicated with the air supply channel and the atomization cavity, a liquid substrate flowing into the atomization cavity can form a liquid film on the atomization surface, and the liquid film can be cut by the high-speed airflow to form liquid particles.
In some embodiments, the air supply channel includes an acceleration section having a cross-sectional area that gradually decreases from an end distal to the atomizing chamber to an end proximal to the atomizing chamber.
In some embodiments, the central axis of the atomizing port coincides with the central axis of the atomizing chamber.
In some embodiments, the liquid storage atomization assembly comprises a liquid storage shell and a nozzle at least partially accommodated in the liquid storage shell, the liquid storage cavity is formed in the liquid storage shell, and the air flow channel and the liquid supply end section are formed in the nozzle.
The invention also provides an electronic atomization device, which comprises the liquid storage atomization assembly.
The invention also provides a nozzle, wherein an air flow channel and a liquid supply end section are formed in the nozzle, the liquid supply end section is a capillary channel, and the liquid supply end section is communicated with the air flow channel and is used for outputting liquid matrix to the air flow channel; the air flow channel is used for circulating high-speed air flow, and the liquid substrate entering the air flow channel from the liquid supply end section can be atomized under the action of the high-speed air flow circulating in the air flow channel.
In some embodiments, the liquid supply end section is a linear channel, and the extending direction of the liquid supply end section is perpendicular to the extending direction of the airflow channel.
In some embodiments, the hydraulic diameter of the liquid supply end segment is less than or equal to 0.3mm.
In some embodiments, a liquid supply front section is further formed in the nozzle, the liquid supply front section is communicated with one end of the liquid supply end section away from the airflow channel, and the sectional area of the liquid supply front section is larger than that of the liquid supply end section.
In some embodiments, the cross-sectional area of the liquid supply front section ranges from 0.09mm 2 ～0.16mm 2 。
In some embodiments, the airflow channel comprises an air supply channel and an atomization cavity, the atomization cavity is respectively communicated with the air supply channel and the liquid supply end section, the atomization cavity is close to one end face of the air supply channel to form an atomization surface, the atomization surface is provided with an atomization opening communicated with the air supply channel and the atomization cavity, a liquid substrate flowing into the atomization cavity can form a liquid film on the atomization surface, and the liquid film can be cut by the high-speed airflow to form liquid particles.
In some embodiments, the air supply channel includes an acceleration section having a cross-sectional area that gradually decreases from an end distal to the atomizing chamber to an end proximal to the atomizing chamber.
In some embodiments, the central axis of the atomizing port coincides with the central axis of the atomizing chamber.
The invention also provides an electronic atomising device comprising a nozzle as claimed in any one of the preceding claims.
The implementation of the invention has at least the following beneficial effects: according to the invention, the continuously flowing liquid matrix is atomized into liquid particles by high-speed airflow assistance, so that low-temperature atomization can be realized; in addition, by setting the liquid supply end section as a capillary channel, the capillary force in the liquid supply end section is utilized to reduce the backflow of the liquid matrix to the liquid storage cavity at the end of suction, and the liquid supply delay in the next suction is prevented.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic perspective view of an electronic atomizing device according to some embodiments of the present disclosure;
fig. 2 is a schematic view of a longitudinal sectional structure of the electronic atomizing device shown in fig. 1;
FIG. 3 is a schematic perspective view of the reservoir atomization assembly of FIG. 2;
FIG. 4 shows the stressing of the liquid matrix in the feed channel when the suction is stopped;
FIG. 5 is a schematic view of the longitudinal cross-sectional structure of the nozzle of FIG. 3;
FIG. 6 is a dimensioning of the nozzle shown in FIG. 5;
fig. 7 is a schematic view of a longitudinal cross-sectional structure of a nozzle in an alternative embodiment of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings or those conventionally placed in use of the product of the present invention, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, 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" or "a second" 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.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "under" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is level less than the second feature.
Fig. 1-2 illustrate an electronic atomizing device 100 in some embodiments of the present invention, the electronic atomizing device 100 being operable to atomize a liquid substrate to produce an aerosol that can be inhaled or inhaled by a user, which in this embodiment can be generally cylindrical. It is understood that in other embodiments, the electronic atomizing device 100 may have other shapes such as an elliptic cylinder, a flat cylinder, or a square cylinder. The liquid matrix may include tobacco tar or liquid medicine.
The electronic atomizing device 100 may include a housing 10, a control module 20 housed in the housing 10, a power source 30, a gas source 40, and a liquid storage atomizing assembly 60. The control module 20 is electrically connected to the air source 40, and is configured to receive an instruction, where the instruction may be triggered by a user or automatically triggered when the electronic atomizing device 100 satisfies a certain condition, and the control module 20 controls the operation of the air source 40 according to the instruction. The power supply 30 is electrically connected to the control module 20 and the air source 40, respectively, and is used for providing electric energy to the control module 20 and the air source 40.
As shown in fig. 3, the reservoir atomization assembly 60 includes a reservoir housing 61 and a nozzle 62 at least partially housed within the reservoir housing 61. Wherein, a liquid storage cavity 610 for storing liquid matrix is formed in the liquid storage shell 61, an air flow channel 622 is formed in the nozzle 62, and a resistance liquid supply channel 611 which is communicated with the liquid storage cavity 610 and the air flow channel 622 is also formed in the liquid storage atomization assembly 60, so that the liquid matrix in the liquid storage cavity 610 can flow to the air flow channel 622 through the resistance liquid supply channel 611. The air source 40 is connected to the air flow passage 622 for providing a high velocity air flow through the air flow passage 622, which may typically be an air pump. The liquid medium entering the gas flow passage 622 from the resistance liquid supply passage 611 can be atomized by the high-speed gas flow flowing through the gas flow passage 622 to form fine liquid particles.
The resistive fluid supply channel 611 includes a fluid supply end segment 621 in communication with the fluid flow channel 622 and a body segment 612 in communication with the fluid supply end segment 621 and the fluid reservoir 610. The liquid supply end 621 may be capillaryThe channels, i.e. the liquid matrix, are capable of generating capillary forces in the liquid supply end 621. In some embodiments, the cross-sectional area of the liquid supply end 621 may be less than 0.08mm 2 。
After the suction is finished, the air source 40 stops working, the negative pressure generated by the high-speed air flow in the resistance liquid supply channel 611 disappears, the power of the liquid matrix in the resistance liquid supply channel 611 flowing towards the direction of the nozzle 62 disappears, and the negative pressure exists in the liquid storage cavity 610, and the negative pressure in the liquid storage cavity 610 can suck back the liquid matrix in the liquid supply end 621, so that the liquid supply is not timely in the next suction. Therefore, by designing the liquid supply end 621 of the resistive liquid supply channel 611 adjacent to the air flow channel 622 as a capillary channel and ensuring that the liquid supply end 621 has a set of critical dimensions (e.g., channel cross-sectional area and channel length), capillary forces within the liquid supply end 621 are utilized to reduce backflow to achieve a stable liquid supply that is stopped immediately, preventing liquid matrix backflow to the liquid storage chamber 610 when the air source 40 is stopped from causing a delay in the next suction.
Figure 4 shows the liquid matrix 200 being forced within the liquid supply end 621 after the suction is stopped and the gas source 40 is stopped. After the air source 40 stops working, the dynamic force of the liquid matrix in the liquid supply end section 621 flowing towards the direction of the nozzle 62 disappears, and the stress condition and the liquid level movement condition of the liquid matrix 200 in the liquid supply end section 621 on the gas-liquid interface 201 are as follows:
if DeltaP Wool (fur) =Δp, the liquid level is stopped after a short movement in the direction of the liquid storage chamber 610, and there is a short delay when the air source 40 is started next time;
if DeltaP Wool (fur) <ΔP will continue to move toward the reservoir 610 until enough liquid matrix flows back into the reservoir 610 such that ΔP will decrease to a level equal to ΔP due to the rising of the liquid level in the reservoir 610 Wool (fur) The balance is maintained, and the liquid level movement is stopped, so that a relatively large cavity is formed in the resistance liquid supply channel 611, and a longer time delay is caused when the air source 40 is started next time;
if DeltaP Wool (fur) >Δp, the liquid level will not flow back and will atomize immediately the next time the air supply 40 is started.
Wherein Δp=reservoirNegative pressure in 610-gravity of liquid matrix in reservoir 610, ΔP Wool (fur) =capillary force within the liquid supply end 621.
In some embodiments, the cross-sectional area of the liquid supply end 621 is 0.07mm 2 (or aperture 0.3 mm), the channel length is not less than 2mm, and the liquid matrix in the liquid supply end 621 can not flow back to the liquid storage cavity 610 due to the negative pressure in the liquid storage cavity 610 when the air source 40 stops working, so that the effect of instant starting can be achieved. In other embodiments, the cross-sectional area of the liquid supply end 621 may be 0.05mm 2 The channel length is more than or equal to 1mm, and stable liquid supply can be realized when the liquid supply is started and stopped. In other embodiments, the hydraulic diameter of the liquid supply end 621 is less than or equal to 0.3mm, and stable liquid supply can be realized when the liquid supply end stops. In general, the smaller the cross-sectional area of the liquid delivery end 621, the smaller the channel length of the liquid delivery end 621 that is required to achieve the instant start effect.
In addition, as shown in fig. 3 and 5-6, the resistance liquid supply channel 611 can also be used to control the flow rate of the liquid supplied to the air flow channel 622, so as to realize the quantitative liquid supply of the air flow channel 622. In general, the size of the resistive fluid supply channel 611 may be matched to the flow requirements, i.e., the resistive fluid supply channel 611 may produce a resistance that matches the fluid supply force at the design flow rate. Specifically, the negative pressure generated in the air flow channel 622 is hydraulic power, and the hydraulic resistance includes the resistance along the way of the resistance hydraulic channel 611 and the negative pressure in the liquid storage cavity 610. The specific diameter and length of the resistive feed channel 611 is designed by calculating the required on-path resistance of the resistive feed channel 611 at the design flow.
In general, the greater the viscosity of the liquid matrix, the greater the resistance of the liquid matrix to flow through the resistance liquid supply channel 611; the longer the length of the resistance fluid supply channel 611, the greater the resistance within the resistance fluid supply channel 611; the larger the sectional area of the resistance liquid supply passage 611, the smaller the resistance in the resistance liquid supply passage 611; the more tortuous the drag feed channel 611, the greater the drag in the drag feed channel 611. In some embodiments, the viscosity of the liquid matrix is 20cp to 250cp; the overall length of the resistance liquid supply channel 611 is 6mm to 15mm. The liquid supply end section 621 and the main body section 612 are straight channels extending along the transverse direction, and the liquid supply end section 621 and the main body section612 are coincident. The body section 612 is a weak capillary force channel, i.e., the liquid matrix is capable of generating weak capillary forces within the body section 612. The cross-sectional area of the body section 612 is greater than the cross-sectional area of the liquid supply end section 621. In some embodiments, the cross-sectional area of the body section 612 may range from 0.09mm 2 ～0.16mm 2 。
In this embodiment, a liquid supply end segment 621 is formed in the nozzle 62 and a body segment 612 is formed in the liquid housing 61. The nozzle 62 has a substantially cylindrical shape, and may be longitudinally penetrating in the liquid storage case 61 and may be coaxially disposed with the liquid storage case 61. The air flow passage 622 extends longitudinally through the nozzle 62 and may be coaxially disposed with the nozzle 62. The liquid supply end 621 extends laterally inward from one side surface of the nozzle 62 to communicate with the air flow passage 622, and the direction of extension of the liquid supply end 621 is perpendicular to the direction of extension of the air flow passage 622. It will be appreciated that in other embodiments, the nozzle 62 may have other shapes, such as oval or square. In other embodiments, the liquid supply end 621 may be formed partially within the nozzle 62 and partially within the liquid housing 61; alternatively, the main body section 612 may be partially formed in the nozzle 62 and partially formed in the reservoir 61.
The air flow passage 622 may include an air supply passage 623 and an atomizing chamber 625. The nebulization chamber 625 is connected to the air supply 40 via an air supply channel 623 and communicates with the reservoir chamber 610 via an air supply end 621. The end surface of the atomizing chamber 625 near the air supply passage 623 forms an atomizing surface 6250, and an atomizing port 6251 is formed in the atomizing surface 6250. The high velocity air flow from the air supply channel 623 is ejected into the nebulization chamber 625 via the nebulization port 6251 and flows at high velocity in the nebulization chamber 625, the high velocity air flow creating a negative pressure in the liquid supply end segment 621 by the bernoulli equation, which negative pressure is conducted to the liquid reservoir 610 to draw the liquid matrix in the liquid reservoir 610 out to the nebulization chamber 625, forming a liquid film on the nebulization surface 6250. Along with the continuous liquid supply process, the liquid film moves to the edge of the hole wall of the atomization hole 6251 to meet the high-speed air flow, is cut and atomized into fine liquid particles by the high-speed air flow, is carried away from the atomization hole 6251 by the air flow, and is sprayed out along with the air flow to complete the atomization process. The atomization mode of the liquid matrix in the atomization cavity 625 is a non-phase-change atomization mode, and the particle size distribution of liquid particles formed after the atomization of the atomization cavity 625 can reach the range of smd=30 μm. Where SMD = total volume of liquid particles/total surface area of liquid particles, represents the average particle size of the liquid particles.
The chamber 625 is a straight cylindrical channel with a wall perpendicular to the atomizing face 6250. In this embodiment, the atomizing chamber 625 is a straight cylindrical channel, the atomizing surface 6250 is concentric with the annular shape, and the inner wall surface of the atomizing surface 6250 defines the atomizing outlet 6251. In other embodiments, the cross-section of the nebulizing chamber 625, nebulizing face 6250, or nebulizing port 6251 may be oval or rectangular, among other non-circular shapes.
The size and shape of the atomizing port 6251 and the atomizing chamber 625 can influence the magnitude of the negative pressure in the atomizing chamber 625 and the particle size of the generated liquid particles, and can make the flow rate more stable. In some embodiments, the aperture D of the atomizing port 6251, the aperture W1 of the atomizing chamber 625, and the length H of the atomizing chamber 625 may be sized as desired.
Specifically, the aperture D of the atomizing port 6251 is related to the velocity of the gas stream (m/s) exiting the atomizing port 6251, which can affect the particle size of the liquid particles produced. In some embodiments, the aperture D of the atomizing port 6251 can range from 0.2mm to 0.4mm, preferably from 0.22mm to 0.35mm.
The aperture W1 of the nebulization chamber 625 affects the amount of airflow velocity in the nebulization chamber 625 and thus the amount of negative pressure in the nebulization chamber 625 and the liquid supply end 621. This negative pressure may draw liquid matrix from liquid supply end 621 to nebulizing chamber 625. In some embodiments, the aperture W1 of the nebulization chamber 625 may range from 0.7mm to 1.3mm. The length H of the nebulizing chamber 625 may be 0.8mm to 3.0mm. It will be appreciated that in other embodiments, the atomizing port 6251 or the atomizing chamber 625 may also have a non-circular cross-section; when the atomizing port 6251 or the atomizing chamber 625 has a non-circular cross section, the aperture D of the atomizing port 6251 or the aperture W1 of the atomizing chamber 625, respectively, is its equivalent diameter. The term "equivalent diameter" refers to the diameter of a circular hole having equal hydraulic radius as defined as the equivalent diameter of a non-circular hole.
Further, in some embodiments, D ranges from 0.22mm to 0.35mm, H ranges from 1.5mm to 3.0mm, and W1 ranges from 0.7mm to 1.3mm, and the D, H, W range of values enables the nozzle 62 to be advantageous in the manufacturing process.
The end of the liquid supply end 621 that communicates with the nebulizing chamber 625 has a liquid supply opening 6210, the distance L between the liquid supply opening 6210 and the nebulizing surface 6250 being critical to ensure liquid film formation. In the present embodiment, the distance L between the liquid supply port 6210 and the atomizing face 6250 is the perpendicular distance between the center of the liquid supply port 6210 and the atomizing face 6250. In some embodiments, the distance L between the liquid supply port 6210 and the atomizing face 6250 can range from 0.3mm to 0.8mm, with L being preferably from 0.35mm to 0.6mm.
Further, the airflow channel 622 further includes an expansion channel 626, where the expansion channel 626 is communicated with one end of the atomization cavity 625 away from the air supply channel 623, and is used to diffuse and spray out liquid particles generated after atomization in the atomization cavity 625 in a jet form, so as to increase the spray area of the liquid particles. In this embodiment, the expanding channel 626 is a conical channel extending longitudinally and having a bore diameter that increases gradually from bottom to top. The atomization angle α of the expansion passage 626 (i.e., the divergence angle of the expansion passage 626) must have a proper range to ensure that the ejected liquid particles have a proper ejection range. In some embodiments, the atomization angle α of the expanding channel 626 may be 30 ° to 70 °. In other embodiments, the expansion channel 626 may have other shapes such as an elliptical cone shape or a pyramid shape.
The gas supply passage 623 may, in some embodiments, include an acceleration segment 6231, the acceleration segment 6231 having a converging shape with a cross-sectional area that gradually decreases from an end distal to the nebulization chamber 625 to an end proximal to the nebulization chamber 625, thereby enabling the gas stream from the gas source 40 to be accelerated and ejected into the nebulization chamber 625. In the present embodiment, the accelerating section 6231 is a conical channel extending longitudinally and having a gradually decreasing aperture from bottom to top, and the aperture of the upper end of the accelerating section 6231 is smaller than that of the atomizing chamber 625, so that the junction between the accelerating section 6231 and the atomizing chamber 625 forms a circular atomizing surface 6250. It will be appreciated that in other embodiments, the acceleration section 6231 may be other converging shapes such as elliptical cone shapes or pyramid shapes.
Further, the air supply channel 623 also includes a communication section 6232 in communication with the acceleration section 6231, the acceleration section 6231 being connected to the air source 40 through the communication section 6232. The communication section 6232 may be a straight cylindrical passage extending in the longitudinal direction, the upper end of the communication section 6232 being in communication with the acceleration section 6231, the aperture of the communication section 6232 being in accordance with the aperture of the lower end of the acceleration section 6231. In other embodiments, the cross-section of the communication segment 6232 may be elliptical or rectangular, among other non-circular shapes. It will be appreciated that in other embodiments, the air supply channel 623 formed within the nozzle 62 may also include only the acceleration segment 6231; alternatively, the air supply channel 623 may also include only the communication segment 6232 when the airflow rate is sufficient.
The reservoir 61 may include a reservoir body 613 and a reservoir 614 that cooperate with each other. In this embodiment, the reservoir 610 and the body section 612 are both formed within the reservoir body 613. Specifically, the bottom surface of the liquid storage main body 613 is concave upward to form an annular liquid storage cavity 610, and a side cavity wall surface of the liquid storage cavity 610, which is close to the nozzle 62, extends toward the nozzle 62 in the lateral direction to form a main body section 612. It will be appreciated that in other embodiments, the reservoir 610 and/or the body section 612 may be formed within the reservoir 614, or may be formed partially within the reservoir body 613, partially within the reservoir 614.
Further, the liquid storage shell 61 may further be formed with a liquid injection channel 615 in communication with the liquid storage cavity 610, so that the liquid medium in the liquid storage cavity 610 can be injected into the liquid storage cavity 610 again after the liquid medium in the liquid storage cavity 610 is used up. In the present embodiment, a liquid injection passage 615 is formed in the liquid storage main body 613 and extends in the longitudinal direction, and a lower end of the liquid injection passage 615 communicates with the liquid storage chamber 610.
Further, as further shown in fig. 2, the electronic atomizing device 100 further includes a heat generating member 80 accommodated in the housing 10. The heat generating element 80 is electrically connected to the power supply 30, and is capable of generating heat after being energized. The structure and the heating form of the heat generating member 80 are not limited, and for example, it may be a structure of a heat generating net, a heat generating sheet, a heat generating wire, or a heat generating film, and the heating form may be a heating form of resistance conduction heating, infrared radiation heating, electromagnetic induction heating, or composite heating. Also formed within the housing 10 is an output channel 70, and a heat generating member 80 may be disposed within the output channel 70 and above the nozzle 62. The liquid particles ejected from the nozzle 62 strike the heat generating element 80 upward, and are heated by the heat generating element 80 to generate aerosol, and the aerosol is then carried out of the output channel 70 by the airflow for inhalation or inhalation by the user.
In this embodiment, by adopting the manner that the nozzle 62 atomizes the continuously flowing liquid matrix into the liquid particles and then evaporates the liquid particles by the heating element 80, the surface area of the fine liquid particles formed after the nozzle 62 atomizes is greatly expanded, so that the heating and evaporation are easier, on one hand, the conversion efficiency of heat and aerosol can be improved, and on the other hand, the temperature of the evaporation process of the heating element 80 can be reduced, and the low-temperature atomization can be realized. At a lower heating atomization temperature, the liquid matrix mainly completes the physical change process, thereby solving the problem of thermal cracking deterioration of the liquid matrix caused by the atomization of the traditional porous ceramic or porous cotton in a high temperature mode, avoiding the phenomena of burning, carbon deposition, heavy metal volatilization and the like, keeping the special components of different liquid matrixes and essence and spice systems, and finally enabling an inhalator to feel the special taste corresponding to the original liquid matrix. In addition, the heating element 80 is not in contact with the liquid storage cavity 610, the heating element 80 is not soaked in the liquid matrix for a long time, and pollution of the heating element 80 to the liquid matrix is reduced, so that impurity gas in aerosol generated after atomization is reduced.
It will be appreciated that in other embodiments, the liquid particles ejected by the nozzle 62 may also impinge downwardly on the heat generating element 80, i.e., the heat generating element 80 may also be disposed below the nozzle 62; alternatively, the liquid particles ejected by the nozzle 62 may also impinge the heat-generating element 80 laterally, i.e., the heat-generating element 80 is at or substantially at the same level as the nozzle 62. In other embodiments, the electronic atomizing device 100 may not be provided with the heat generating component 80, i.e., the liquid particles atomized by the nozzle 62 may be directly output through the output channel 70 and sucked or inhaled by the user.
Further, a bracket assembly 11 may be further disposed in the housing 10, and the bracket assembly 11 divides the housing 10 into a first receiving space 121 at an upper portion and a second receiving space 122 at a lower portion. The control module 20, the power source 30, and the air source 40 can be accommodated in the second accommodating space 122. The liquid storage atomizing assembly 60 can be accommodated in the first accommodating space 121 and can be supported on the bracket assembly 11. Further, the electronic atomizing device 100 may further include an air flow sensing element 50 disposed in the housing 10 and electrically coupled to the control module 20. The airflow sensing element 50 is received in the bottom of the frame assembly 11 and is capable of sensing airflow changes when the user inhales, which may typically be a negative pressure sensor, such as a microphone. The user suction action creates a negative pressure and the airflow sensing element 50 senses the negative pressure to generate a suction signal that may be transmitted to the control module 20 to control the operation of the air source 40 and/or the heat generating member 80.
Further, the electronic atomizing device 100 may further include a dust cap 90 detachably mounted on the upper end of the housing 10. When the electronic atomizing apparatus 100 is not required to be used, the dust cover 90 may be provided at the upper end of the housing 10 to prevent foreign substances such as dust from entering the output passage 70.
Fig. 7 shows a nozzle 62 in an alternative of the invention, which differs from the above-described embodiment mainly in that in this embodiment a liquid-feeding end section 621 and a liquid-feeding front section 624 are formed in the nozzle 62, which liquid-feeding end section 621 communicates with the atomizing chamber 625, and which liquid-feeding front section 624 communicates with the end of the liquid-feeding end section 621 remote from the atomizing chamber 625. The structure of the liquid supply end 621 is similar to that described in the above embodiments, and will not be described again. The liquid supply front section 624 is a weak capillary force channel that forms part of the body section 612 in the above embodiments.
In addition, in the present embodiment, the hole wall surface of the expansion channel 626 is an arc surface, and the expansion channel 626 and the atomization cavity 625 are in streamline smooth connection, for example, tangent by a rounding manner. In some embodiments, the arcuate surface may be formed by a rounded corner or the like that also increases the atomization angle of the expansion channel 626, such as from 40 to 50. It will be appreciated that in other embodiments, the bore wall of the expansion channel 626 may have other streamlined expansion shapes.
Furthermore, in the present embodiment, only the acceleration section 6231 is formed in the nozzle 62, and the atomizing chamber 625 is connected to the air source via the acceleration section 6231. It will be appreciated that the above technical features may be used in any combination without limitation.
The foregoing examples only illustrate preferred embodiments of the invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (20)
1. A liquid storage atomization assembly, characterized in that a liquid storage cavity (610) for storing liquid matrix, an airflow channel (622) for circulating high-speed airflow and a resistance liquid supply channel (611) for communicating the liquid storage cavity (610) with the airflow channel (622) are formed in the liquid storage atomization assembly (60); the high-speed air flowing in the air flow channel (622) enables negative pressure to be generated in the air flow channel (622), the negative pressure can suck the liquid matrix in the liquid storage cavity (610) to the air flow channel (622), and the liquid matrix entering the air flow channel (622) is atomized under the action of the high-speed air flowing in the air flow channel (622);
the resistive liquid supply channel (611) comprises a liquid supply end section (621) adjacent to the air flow channel (622), the liquid supply end section (621) being a capillary channel.
2. A liquid-storage atomizing assembly according to claim 1, characterized in that the liquid matrix in the liquid-supply end segment (621) is subjected to a force at the gas-liquid interface (201) satisfying Δp when the high-velocity gas flow stops flowing in the gas flow channel (622) Wool (fur) Not less than deltaP; wherein DeltaP Wool (fur) For capillary forces in the liquid supply end segment (621), ΔP is the negative pressure in the liquid storage cavity (610) -the gravity of the liquid matrix in the liquid storage cavity (610).
3. A reservoir atomizing assembly according to claim 1, characterized in that the liquid supply end segment (621) is a straight channel, and the direction of extension of the liquid supply end segment (621) is perpendicular to the direction of extension of the air flow channel (622).
4. A reservoir atomization assembly according to claim 1, wherein the hydraulic diameter of the liquid supply end segment (621) is less than or equal to 0.3mm.
5. The liquid storage atomization assembly as set forth in claim 1, wherein the resistive liquid supply channel (611) further includes a main body segment (612) communicating the liquid supply end segment (621) and the liquid storage chamber (610), the main body segment (612) having a cross-sectional area greater than a cross-sectional area of the liquid supply end segment (621).
6. A reservoir atomizing assembly according to claim 5, characterized in that the cross-sectional area of the body section (612) is in the range of 0.09mm 2 ～0.16mm 2 。
7. A liquid storage atomizing assembly according to claim 1, characterized in that the air flow channel (622) comprises an air flow channel (623) and an atomizing chamber (625), the atomizing chamber (625) is respectively communicated with the air flow channel (623) and the liquid supply end section (621), the atomizing chamber (625) forms an atomizing surface (6250) near one end face of the air flow channel (623), the atomizing surface (6250) is provided with an atomizing port (6251) communicated with the air flow channel (623) and the atomizing chamber (625), a liquid substrate flowing into the atomizing chamber (625) can form a liquid film on the atomizing surface (6250), and the liquid film can be cut by the high-speed air flow to form liquid particles.
8. A reservoir atomizing assembly according to claim 7, characterized in that said air supply channel (623) comprises an acceleration section (6231), said acceleration section (6231) having a cross-sectional area that decreases gradually from an end distal to said atomizing chamber (625) to an end proximal to said atomizing chamber (625).
9. The liquid storage atomizing assembly according to claim 7, wherein a central axis of the atomizing port (6251) coincides with a central axis of the atomizing chamber (625).
10. A reservoir atomization assembly according to any of claims 1-9, comprising a reservoir housing (61) and a nozzle (62) at least partially received in the reservoir housing (61), the reservoir chamber (610) being formed within the reservoir housing (61), the air flow channel (622) and the liquid supply end (621) being formed within the nozzle (62).
11. An electronic atomising device comprising a liquid storage atomising assembly as claimed in any one of claims 1 to 10.
12. A nozzle, characterized in that an air flow channel (622) and a liquid supply end section (621) are formed in the nozzle (62), the liquid supply end section (621) is a capillary channel, and the liquid supply end section (621) is communicated with the air flow channel (622) and is used for outputting liquid matrix to the air flow channel (52); the air flow channel (622) is used for circulating high-speed air flow, and liquid substrate entering the air flow channel (622) from the liquid supply end section (621) can be atomized under the action of the high-speed air flow circulating in the air flow channel (622).
13. The nozzle of claim 12, wherein the liquid supply end (621) is a straight channel, and the direction of extension of the liquid supply end (621) is perpendicular to the direction of extension of the air flow channel (622).
14. The nozzle of claim 12, wherein the hydraulic diameter of the liquid supply end segment (621) is 0.3mm or less.
15. The nozzle of claim 12, wherein a liquid feed front section (624) is further formed in the nozzle (62), the liquid feed front section (624) being in communication with an end of the liquid feed end section (621) remote from the air flow passage (622), a cross-sectional area of the liquid feed front section (624) being larger than a cross-sectional area of the liquid feed end section (621).
16. The nozzle of claim 15, wherein the cross-sectional area of the liquid feed front section (624) ranges from 0.09mm 2 ～0.16mm 2 。
17. Nozzle according to any of claims 12-16, characterized in that the gas flow channel (622) comprises a gas supply channel (623) and an atomizing chamber (625), the atomizing chamber (625) being in communication with the gas supply channel (623) and the liquid supply end (621), respectively, the atomizing chamber (625) forming an atomizing surface (6250) near an end face of the gas supply channel (623), the atomizing surface (6250) being provided with an atomizing opening (6251) communicating the gas supply channel (623) and the atomizing chamber (625), the liquid medium flowing into the atomizing chamber (625) being capable of forming a liquid film on the atomizing surface (6250), the liquid film being capable of being cut by the high-speed gas flow to form liquid particles.
18. The nozzle of claim 17, wherein the gas supply channel (623) comprises an acceleration segment (6231), the acceleration segment (6231) having a cross-sectional area that gradually decreases from an end distal to the nebulization chamber (625) to an end proximal to the nebulization chamber (625).
19. The nozzle of claim 17, wherein a central axis of the atomizing port (6251) coincides with a central axis of the atomizing chamber (625).
20. An electronic atomizing device, characterized in that it comprises a nozzle (62) according to any one of claims 12 to 19.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210468920.0A CN116998768A (en) | 2022-04-29 | 2022-04-29 | Electronic atomization device and liquid storage atomization assembly and nozzle thereof |
| PCT/CN2023/080928 WO2023207368A1 (en) | 2022-04-29 | 2023-03-10 | Electronic atomization apparatus, liquid storage and atomization assembly thereof, and nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210468920.0A CN116998768A (en) | 2022-04-29 | 2022-04-29 | Electronic atomization device and liquid storage atomization assembly and nozzle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116998768A true CN116998768A (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210468920.0A Pending CN116998768A (en) | 2022-04-29 | 2022-04-29 | Electronic atomization device and liquid storage atomization assembly and nozzle thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116998768A (en) |
| WO (1) | WO2023207368A1 (en) |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2719043Y (en) * | 2004-04-14 | 2005-08-24 | 韩力 | Atomized electronic cigarette |
| US7845359B2 (en) * | 2007-03-22 | 2010-12-07 | Pierre Denain | Artificial smoke cigarette |
| CN101314154A (en) * | 2008-07-01 | 2008-12-03 | 攀钢集团研究院有限公司 | Method for removing obstruction of atomizer |
| CA3071911C (en) * | 2010-08-23 | 2023-01-17 | Darren Rubin | Systems and methods of aerosol delivery with airflow regulation |
| US11247003B2 (en) * | 2010-08-23 | 2022-02-15 | Darren Rubin | Systems and methods of aerosol delivery with airflow regulation |
| PT2787848T (en) * | 2011-12-08 | 2018-11-30 | Philip Morris Products Sa | An aerosol generating device with air flow nozzles |
| CN106470562B (en) * | 2014-08-22 | 2019-06-28 | 惠州市吉瑞科技有限公司 | Atomizing component and electronic cigarette |
| CN105944862A (en) * | 2016-07-07 | 2016-09-21 | 北京航天发射技术研究所 | Atomizing nozzle and atomizing spray head using atomizing nozzle |
| TW201941703A (en) * | 2018-02-26 | 2019-11-01 | 英商奈路迪亞有限公司 | Device, system and method |
| CN110035832B (en) * | 2019-03-08 | 2021-04-02 | 璞真生活有限公司 | Atomizing nozzle and atomizing device |
| CN210411219U (en) * | 2019-04-25 | 2020-04-28 | 郭钢 | Two-fluid nozzle for efficient atomization of essential oil |
| JP7291249B2 (en) * | 2019-05-14 | 2023-06-14 | 深▲せん▼麦克韋爾科技有限公司 | Nebulizers and electronic nebulizers |
| CN110507011A (en) * | 2019-10-11 | 2019-11-29 | 广州丹绮环保科技有限公司 | A kind of electronic cigarette |
| EP4147589A1 (en) * | 2020-05-05 | 2023-03-15 | Zhao, Hexiang | Aerosol generator |
| KR102513572B1 (en) * | 2020-07-09 | 2023-03-23 | 주식회사 케이티앤지 | Aerosol generating device |
| CN214071756U (en) * | 2020-11-24 | 2021-08-31 | 屠国林 | Novel split type atomizer |
| CN112690499A (en) * | 2020-12-22 | 2021-04-23 | 深圳市兆威机电股份有限公司 | Electronic cigarette |
| CN113197349A (en) * | 2021-05-26 | 2021-08-03 | 深圳市吉迩科技有限公司 | Aerosol generating device |
| CN113287787A (en) * | 2021-05-26 | 2021-08-24 | 深圳市吉迩科技有限公司 | Aerosol generating device |
| CN113598431A (en) * | 2021-09-06 | 2021-11-05 | 深圳御烟实业有限公司 | Humidifying device |
| CN114304740A (en) * | 2022-01-12 | 2022-04-12 | 深圳摩尔雾化健康医疗科技有限公司 | Sound insulation air interchanger and electronic atomization device |
-
2022
- 2022-04-29 CN CN202210468920.0A patent/CN116998768A/en active Pending
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- 2023-03-10 WO PCT/CN2023/080928 patent/WO2023207368A1/en unknown
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