WO2023207322A1 - 电子雾化装置及其储液雾化组件 - Google Patents

电子雾化装置及其储液雾化组件 Download PDF

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Publication number
WO2023207322A1
WO2023207322A1 PCT/CN2023/079138 CN2023079138W WO2023207322A1 WO 2023207322 A1 WO2023207322 A1 WO 2023207322A1 CN 2023079138 W CN2023079138 W CN 2023079138W WO 2023207322 A1 WO2023207322 A1 WO 2023207322A1
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WO
WIPO (PCT)
Prior art keywords
liquid
liquid storage
atomization
channel
chamber
Prior art date
Application number
PCT/CN2023/079138
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English (en)
French (fr)
Inventor
徐志锋
林作飘
高椋
郑维克
雷桂林
Original Assignee
海南摩尔兄弟科技有限公司
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Publication of WO2023207322A1 publication Critical patent/WO2023207322A1/zh

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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
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/02—Sprayers or atomisers specially adapted for therapeutic purposes operated by air or other gas pressure applied to the liquid or other product to be sprayed or atomised

Definitions

  • the present invention relates to the field of atomization, and more specifically, to an electronic atomization device and a liquid storage atomization assembly thereof.
  • Existing electronic atomization devices mainly use porous media such as porous ceramics or porous cotton combined with heating components for heating and atomization. Due to the high heating temperature during atomization, when the supply of liquid matrix is insufficient, the small amount of liquid matrix on the heating component is not enough to consume the electrical energy released on the heating component, causing the temperature of the heating surface to further increase, thereby further aggravating the thermal cracking of the liquid matrix. , and even the formation of carbon deposits and dry burning can easily cause the formed aerosol to produce a burnt smell, leading to a significant deterioration in taste.
  • the technical problem to be solved by the present invention is to provide an improved liquid storage atomization assembly and an electronic atomization device having the liquid storage atomization assembly in view of the above-mentioned defects of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem is to construct a liquid storage atomization assembly.
  • the liquid storage atomization assembly includes a liquid storage assembly and a nozzle at least partially accommodated in the liquid storage assembly.
  • An airflow channel is formed for circulating high-speed airflow.
  • a liquid storage chamber and a liquid conduction channel respectively connected with the liquid storage chamber and the airflow channel are formed in the liquid storage component.
  • the liquid matrix entering the airflow channel is Able to be atomized by the high-speed airflow circulating in the airflow channel;
  • the liquid storage component includes a first surface and a second surface that fit together. At least one of the first surface and the second surface is provided with a liquid guide groove. The first surface and the second surface After the surfaces are bonded, the liquid conducting groove forms the liquid conducting channel.
  • one of the first surface and the second surface is provided with the liquid guide groove, and the other is flat.
  • the liquid guide groove is in a curved shape or a zigzag shape.
  • the extension path length of the liquid conducting channel is 3 mm ⁇ 100 mm.
  • the cross-sectional size of the liquid conducting channel is 0.2mm ⁇ 0.8mm.
  • the liquid storage assembly includes a liquid storage body, a liquid storage seat embedded at one end of the liquid storage body, and a sealing sleeve set between the liquid storage body and the liquid storage seat, The liquid storage cavity is formed in the liquid storage body.
  • the first surface and the second surface are located on the sealing sleeve and the liquid storage seat respectively.
  • the sealing sleeve is made of soft material, and the liquid reservoir is made of hard material; or, the sealing sleeve is made of hard material, and the liquid reservoir is made of soft material.
  • the first surface is a plane, and the second surface is provided with the liquid conduction groove; or, the first surface is provided with a liquid conduction groove, and the second surface is a plane.
  • the liquid storage chamber is annular and surrounds the periphery of the air flow channel.
  • the nozzle is also formed with a liquid inlet channel, and the liquid inlet channel is respectively connected with the liquid guide channel and the air flow channel.
  • the extending direction of the liquid inlet channel is perpendicular to the extending direction of the air flow channel.
  • the liquid inlet channel is a capillary channel.
  • the air flow channel includes an air supply channel and an atomization chamber
  • the atomization chamber is connected to the air supply channel and the liquid guide channel respectively
  • the atomization chamber is close to the air supply channel.
  • An atomization surface is formed at one end of the channel.
  • the atomization surface is provided with an atomization port that connects the air supply channel and the atomization chamber.
  • the liquid matrix flowing into the atomization chamber can form an atomization surface on the atomization surface. Liquid film, which can be cut by the high-speed airflow to form liquid particles.
  • the hole wall surface of the atomization chamber is perpendicular to the atomization surface, and the central axes of the atomization port, the atomization surface, and the atomization chamber are all coincident.
  • the air flow channel further includes an expansion channel, the expansion channel is connected to an end of the atomization chamber away from the air supply channel, and the cross-sectional area of the expansion channel is from close to the atomization chamber.
  • the cavity gradually increases from one end to the end away from the atomization cavity.
  • the hole wall surface of the expansion channel has a streamlined expansion shape, and there is a streamlined smooth connection between the expansion channel and the atomization chamber.
  • the air supply channel includes an acceleration section connected to the atomization chamber, and the cross-sectional area of the acceleration section is from an end far away from the atomization chamber to an end close to the atomization chamber. slowing shrieking.
  • the viscosity of the liquid matrix in the liquid storage chamber ranges from 20 cp to 250 cp.
  • the present invention also provides an electronic atomization device, including the liquid storage atomization assembly as described in any one of the above.
  • the present invention atomizes the continuously flowing liquid matrix into liquid particles through high-speed airflow assistance.
  • the atomization process is a non-phase change atomization process and can achieve low-temperature atomization; in addition, the liquid conduction channel It is formed by joining two surfaces together.
  • Liquid guide grooves of different shapes and sizes can be designed according to different resistance requirements of the liquid guide channel. The liquid guide groove is easy to process and manufacture, and the dimensional accuracy is easy to control.
  • Figure 1 is a schematic three-dimensional structural diagram of an electronic atomization device in some embodiments of the present invention.
  • Figure 2 is a schematic longitudinal cross-sectional structural diagram of the electronic atomization device shown in Figure 1;
  • Figure 3 is a longitudinal sectional view of the liquid storage atomization assembly in Figure 2;
  • Figure 4 is a longitudinal cross-sectional view of the nozzle in Figure 3;
  • Figure 5 is a schematic cross-sectional exploded structural view of the liquid storage atomization assembly shown in Figure 3;
  • Figure 6 is a schematic three-dimensional structural diagram of the liquid reservoir in the first alternative of the present invention.
  • Figure 7 is a schematic three-dimensional structural view of the liquid reservoir in the second alternative of the present invention.
  • Figure 8 is a top view of the liquid reservoir in the third alternative embodiment of the present invention.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In the present invention, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified limitations. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch.
  • a first feature being “above” a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature.
  • the first feature being “below” the second feature may mean that the first feature is directly below or diagonally below the second feature, or it may simply mean that the first feature is less horizontally than the second feature.
  • FIGS 1-3 show an electronic atomization device 100 in some embodiments of the present invention.
  • the electronic atomization device 100 can be used to atomize a liquid substrate to generate an aerosol, which can be smoked or inhaled by the user.
  • it may be substantially cylindrical. It is understandable that in other embodiments, the electronic atomization device 100 may also be in other shapes such as an elliptical column, a flat column, a square column, or the like.
  • the liquid substrate may include e-liquid or medicinal liquid.
  • the electronic atomization device 100 may include a housing 10 and a control module 20 , a power supply 30 , an air source 40 and a liquid storage atomization assembly 60 housed in the housing 10 .
  • the control module 20 is electrically connected to the air source 40 for receiving instructions. The instructions can be triggered by the user or automatically triggered after the electronic atomization device 100 meets certain conditions.
  • the control module 20 then controls the operation of the air source 40 according to the instructions.
  • the power supply 30 is electrically connected to the control module 20 and the air source 40 respectively, and is used to provide electric energy to the control module 20 and the air source 40 .
  • the liquid storage atomization assembly 60 includes a liquid storage assembly 61 and a nozzle 62 at least partially received in the liquid storage assembly 61 .
  • the liquid storage component 61 is formed with a liquid storage chamber 610 for storing liquid substrate and a liquid guide channel 611 connected with the liquid storage chamber 610.
  • An air flow channel 622 and a liquid inlet channel 621 are formed in the nozzle 62.
  • the liquid inlet channel 621 connects the air flow channel 622 and the liquid guide channel 611 so that the liquid matrix in the liquid storage chamber 610 can flow into the air flow channel 622.
  • the air source 40 is connected to the air flow channel 622 and is used to provide high-speed air flow in the air flow channel 622. It can usually be an air pump.
  • the liquid matrix entering the air flow channel 622 from the liquid inlet channel 621 can be atomized by the high-speed air flow circulating in the air flow channel 622 to form fine liquid particles.
  • the nozzle 62 can be cylindrical, and can be longitudinally disposed in the liquid storage component 61 and coaxially with the liquid storage component 61 .
  • the liquid storage atomization assembly 60 may also include a sealing sleeve 65 sealingly provided between the nozzle 62 and the liquid storage assembly 61 .
  • the sealing sleeve 65 can be made of elastic material such as silicone to improve the sealing performance between the nozzle 62 and the liquid storage component 61 .
  • the air flow channel 622 runs through the nozzle 62 longitudinally and can be disposed coaxially with the nozzle 62 .
  • the liquid inlet channel 621 extends transversely inward from one side of the nozzle 62 to communicate with the air flow channel 622 .
  • the air flow channel 622 may include an air supply channel 623 and an atomization chamber 625.
  • the atomization chamber 625 is connected to the air source 40 through the air supply channel 623, and is connected to the liquid storage chamber 610 through the liquid inlet channel 621.
  • An atomization surface 6250 is formed on an end surface of the atomization chamber 625 close to the air supply channel 623, and an atomization port 6251 is also formed on the atomization surface 6250.
  • the high-speed airflow from the air supply channel 623 is sprayed into the atomization chamber 625 through the atomization port 6251 and flows at high speed in the atomization chamber 625.
  • the high-speed airflow is generated in the atomization chamber 625 and the liquid inlet channel 621 by Bernoulli's equation. Negative pressure, this negative pressure is transmitted to the liquid storage chamber 610 to suck the liquid matrix in the liquid storage chamber 610 to the atomization chamber 625, and form a liquid film on the atomization surface 6250. As the liquid supply process continues, the liquid film moves to the edge of the hole wall of the atomization port 6251 and meets the high-speed airflow, and is cut and atomized by the high-speed airflow into fine liquid particles. The liquid particles are then taken away from the atomization port 6251 by the airflow. Then it is sprayed out with the airflow to complete the atomization process.
  • the liquid matrix is atomized in the atomization chamber 625 in a non-phase change atomization mode.
  • SMD total volume of liquid particles/total surface area of liquid particles, which represents the average particle size of liquid particles.
  • the atomization chamber 625 is a straight cylindrical channel, and its hole wall is perpendicular to the atomization surface 6250.
  • the atomization chamber 625 is a right cylindrical channel
  • the atomization surface 6250 is annular
  • the atomization port 6251 is located in the center of the atomization surface 6250
  • the atomization port 6251, the atomization surface 6250, the atomization chamber 625 are all coaxially set.
  • the cross-section of the atomization chamber 625, the atomization surface 6250, or the atomization port 6251 may also be an ellipse, a rectangle, or other non-circular shapes.
  • Parameters such as the size and shape of the atomization port 6251 and the atomization chamber 625 can affect the negative pressure in the atomization chamber 625 and the particle size of the generated liquid particles, and can make the flow rate more stable.
  • the aperture of the atomization port 6251, the aperture of the atomization chamber 625, and the axial length of the atomization chamber 625 can be set to appropriate sizes as needed.
  • the aperture of the atomization port 6251 is related to the airflow velocity (m/s) coming out of the atomization port 6251, which can affect the particle size of the generated liquid particles.
  • the aperture range of the atomization port 6251 may be 0.2mm ⁇ 0.4mm, preferably 0.22mm ⁇ 0.35mm.
  • the aperture of the atomization chamber 625 will affect the airflow velocity in the atomization chamber 625, thereby affecting the negative pressure in the atomization chamber 625 and the liquid inlet channel 621. This negative pressure can cause the liquid substrate to be sucked from the liquid inlet channel 621 to the atomization chamber 625 .
  • the aperture of the atomization chamber 625 may range from 0.7 mm to 1.3 mm.
  • the axial length of the atomization chamber 625 can be 0.8mm ⁇ 3.0mm.
  • the atomization port 6251 or the atomization chamber 625 may also have a non-circular cross-section; when the atomization port 6251 or the atomization chamber 625 has a non-circular cross-section, the aperture of the atomization port 6251 Or the aperture of the atomization chamber 625 is its equivalent diameter respectively.
  • equivalent diameter means that the diameter of a circular hole with the same hydraulic radius is defined as the equivalent diameter of a non-circular hole.
  • the aperture range of the atomization port 6251 is 0.22mm ⁇ 0.35mm
  • the axial length of the atomization chamber 625 is 1.5mm ⁇ 3.0mm
  • the aperture range of the atomization chamber 625 is 0.7mm ⁇ 1.3 mm
  • the vertical distance L between the center of the liquid supply port 6211 and the atomization surface 6250 is the key to ensuring the formation of a liquid film.
  • the vertical distance L between the center of the liquid supply port 6211 and the atomization surface 6250 may range from 0.3 mm to 0.8 mm.
  • L is 0.35 mm to 0.6 mm.
  • the air flow channel 622 also includes an expansion channel 626, which is connected to an end of the atomization chamber 625 away from the air supply channel 623, and is used to diffuse the liquid particles generated after atomization in the atomization chamber 625 in the form of a jet. Spray out to increase the spray area of liquid particles.
  • the cross-sectional area of the expansion channel 626 gradually increases from an end close to the atomization chamber 625 to an end far away from the atomization chamber 625 .
  • the atomization angle of the expansion channel 626 (that is, the expansion angle of the expansion channel 626) must have a suitable range to ensure that the ejected liquid particles have a suitable injection range.
  • the expansion channel 626 has a circular cross-section, and the aperture of the expansion channel 626 gradually increases from bottom to top. Furthermore, the hole wall surface of the expansion channel 626 has a streamlined expansion shape, and the expansion channel 626 and the atomization chamber 625 adopt a streamlined smooth connection, which can reduce the binding effect of the expansion channel 626 on the jet entrainment vortex, allowing the jet to fully develop. .
  • the hole wall surface of the expansion channel 626 can be rounded to form an arc surface, and the expansion channel 626 and the atomization chamber 625 can be made tangent. It can be understood that in other embodiments, the expansion channel 626 can also be in other shapes such as an elliptical cone shape or a pyramid shape.
  • the air supply channel 623 may include an acceleration section 6231, which has a constricted shape, and its cross-sectional area gradually decreases from an end far away from the atomization chamber 625 to an end close to the atomization chamber 625, so that the air supply channel 623 can be The air flow from the air source 40 is accelerated and then sprayed to the atomization chamber 625 .
  • the accelerating section 6231 is a conical channel extending longitudinally and the aperture gradually decreases from bottom to top.
  • the aperture of the upper end of the accelerating section 6231 is smaller than the aperture of the atomization chamber 625, so that the aperture of the accelerating section 6231 and the atomization chamber 625
  • the junction forms a circular atomization surface 6250. It is understood that in other embodiments, the accelerating section 6231 may also be an elliptical cone shape or a pyramid shape or other contracted shapes.
  • the air supply channel 623 also includes a communication section 6232 that communicates with the acceleration section 6231.
  • the acceleration section 6231 is connected to the air source 40 through the communication section 6232.
  • the communication section 6232 may be a straight cylindrical channel extending longitudinally. The upper end of the communication section 6232 is connected with the accelerating section 6231, and the aperture of the communication section 6232 is consistent with the aperture of the lower end of the accelerating section 6231.
  • the cross-section of the communication section 6232 may also be an ellipse, a rectangle, or other non-circular shapes. It can be understood that in other embodiments, the air supply channel 623 formed in the nozzle 62 may also include only the acceleration section 6231; or, when the air flow rate is sufficient, the air supply channel 623 may also only include the communication section 6232.
  • the liquid inlet channel 621 may be a linear channel, and its extension direction is perpendicular to the extension direction of the air flow channel 622.
  • the liquid inlet channel 621 is a capillary channel, that is, the liquid matrix can generate capillary force in the liquid inlet channel 621.
  • the cross-sectional area of the liquid inlet channel 621 may be less than 0.08mm2.
  • the liquid inlet channel 621 By designing the liquid inlet channel 621 as a capillary channel and ensuring that the liquid inlet channel 621 has a set of key dimensions (for example, channel cross-sectional area and channel length), when suction ends and the air source 40 stops working, the liquid inlet channel 621
  • the capillary force in 621 can reduce or avoid the backflow of the liquid matrix in the liquid inlet channel 621 to the liquid storage chamber 610, preventing the liquid matrix in the liquid inlet channel 621 from flowing back to the liquid storage chamber 610 when the air source 40 stops working, causing the next Delay in fluid delivery during aspiration.
  • the cross-sectional area of the liquid inlet channel 621 is 0.07mm2 (or aperture 0.3mm), and its channel length is ⁇ 2mm.
  • the cross-sectional area of the liquid inlet channel 621 can be 0.05mm2, and the channel length is ⁇ 1mm, which can also achieve the effect of instant start-up.
  • the hydraulic diameter of the liquid inlet channel 621 is less than or equal to 0.3 mm, and stable liquid supply that starts and stops can also be achieved. Generally, the smaller the cross-sectional area of the liquid inlet channel 621 is, the smaller the channel length of the liquid inlet channel 621 is required to achieve the effect of instant start.
  • the liquid guide channel 611 can be used to adjust the amount and speed of the liquid supplied from the liquid storage chamber 610 to the air flow channel 622 to ensure that the flow rate of the liquid supplied to the air flow channel 622 reaches the design value.
  • a quantitative supply of liquid to the air flow channel 622 is achieved. If the resistance in the liquid guide channel 611 is too small, the liquid amount will be larger and the liquid flow speed will be faster. If the resistance in the liquid guide channel 611 is too large, the liquid amount will be small and the liquid flow speed will be slowed down.
  • the size of the liquid guide channel 611 can be designed according to the flow demand, that is, the liquid guide channel 611 can generate resistance that matches the liquid supply power under the designed flow rate.
  • the resistance requirement in the liquid guide channel 611 is related to the negative pressure in the air flow channel 622 .
  • the negative pressure generated in the air flow channel 622 is the liquid supply power
  • the liquid supply resistance includes the resistance along the liquid guide channel 611 and the liquid inlet channel 621 and the negative pressure in the liquid storage chamber 610 .
  • the specific diameter and length of the liquid guiding channel 611 are designed by calculating the resistance required along the path of the liquid guiding channel 611 under the designed flow rate.
  • the greater the viscosity of the liquid matrix the greater the resistance when the liquid matrix circulates in the liquid conduction channel 611; the longer the extension length of the liquid conduction channel 611, the greater the resistance in the liquid conduction channel 611; The larger the cross-sectional area of the channel 611, the smaller the resistance in the liquid conducting channel 611; the more tortuous the liquid conducting channel 611 is, the greater the resistance in the liquid conducting channel 611.
  • the liquid conducting channel 611 may be formed between mating surfaces of two components in the liquid storage assembly 61 .
  • the liquid storage assembly 61 includes a first surface 6130 and a second surface 6140 that fit together, and at least one of the first surface 6130 and the second surface 6140 is provided with a liquid guide groove 6141.
  • the first surface 6130 and the second surface 6140 are respectively located on two independently formed components. After the two components are assembled together, the first surface 6130 and the second surface 6140 are attached to each other, so that a liquid guide groove 6141 is formed. The cavity is sealed to form a liquid conducting channel 611.
  • the liquid guide groove 6141 can be designed into different shapes and sizes according to different resistance requirements.
  • the surface shape is easy to process and manufacture, and the dimensional accuracy is easy to control, so that liquid guide channels 611 of different shapes and sizes can be obtained.
  • the viscosity range of the liquid matrix may be 20 cp ⁇ 250 cp
  • the extension path length of the liquid channel 611 may be 3 mm ⁇ 100 mm
  • the cross-sectional size (such as aperture, length or width) of the liquid channel 611 may be 0.2mm ⁇ 0.8mm.
  • the liquid storage assembly 61 includes a liquid storage body 612, a liquid storage seat 614 embedded at the bottom of the liquid storage body 612, and a seal sealingly provided between the liquid storage body 612 and the liquid storage seat 614.
  • the liquid storage cavity 610 is formed in the liquid storage body 612 , and may be annular in shape and may be formed by a concave bottom surface of the liquid storage body 612 .
  • the liquid storage chamber 610 surrounds the periphery of the air flow channel 622 and can be disposed coaxially with the air flow channel 622 .
  • the liquid storage seat 614 is embedded in the bottom of the liquid storage body 612 to cover the liquid storage chamber 610 .
  • the sealing sleeve 613 is set on the liquid storage seat 614 to seal the liquid storage body 612 and the liquid storage seat 614 .
  • the sealing sleeve 613 can be made of elastic materials such as silicone, and the liquid storage body 612 and the liquid storage seat 614 can be made of hard materials such as plastic.
  • the sealing sleeve 613 may be made of hard materials such as plastic, and the liquid storage body 612 and the liquid storage seat 614 may be made of elastic materials such as silicone.
  • the liquid guide channel 611 is formed between the sealing sleeve 613 and the liquid storage seat 614 .
  • the first surface 6130 is located at the lower end surface of the sealing sleeve 613, and the first surface 6130 is a plane, that is, the first surface 6130 is not provided with a liquid guide groove 6141.
  • the second surface 6140 is located on the upper end surface of the liquid reservoir 614, and a liquid guide groove 6141 is provided on it. After the sealing sleeve 613 is placed on the liquid reservoir 614, the first surface 6130 and the second surface 6140 are in contact with each other, and a liquid channel 611 is defined between the first surface 6130 and the liquid channel 6141.
  • the liquid guide groove 6141 is disposed on the rigid liquid storage seat 614, it can avoid being squeezed after assembly and causing the size of the liquid guide channel 611 to change.
  • the sealing sleeve 613 is made of soft material, it can ensure the sealing of the liquid conduction channel 611 and prevent liquid leakage.
  • the liquid guide groove 6141 is linear, so that the liquid guide channel 611 is also linear.
  • a lower liquid port 6131 is also formed on the top wall of the sealing sleeve 613 to connect the liquid storage chamber 610 with the liquid guide channel 611 . One end of the liquid guide channel 611 is connected to the lower liquid port 6131, and the other end is connected to the atomization chamber 625.
  • the liquid guide groove 6141 and the liquid guide channel 611 can also be in various non-linear shapes such as curved shapes (such as sinusoidal shapes) or polygonal shapes (such as square wave shapes), so as to facilitate the placement of liquid in the liquid reservoir. 614 provides different resistance within a limited space distance.
  • the lower end surface of the sealing sleeve 613 may be provided with a liquid guide groove 6141, and the upper end surface of the liquid storage seat 614 may be a flat surface; or, the lower end surface of the sealing sleeve 613, the liquid storage seat 614, and the The upper end surface of the seat 614 is provided with a liquid guide groove 6141; alternatively, the liquid guide channel 611 can also be formed between the sealing sleeve 613 and the liquid storage body 612.
  • the liquid storage assembly 61 may not include the sealing sleeve 613 , that is, the liquid storage seat 614 is directly embedded in the bottom of the liquid storage body 612 and is directly connected to the liquid storage body 612 , so that the liquid conduction channel 611 may also be formed in Between the liquid storage seat 614 and the liquid storage main body 612; at this time, the liquid storage main body 612 can be made of hard material, and the liquid storage seat 614 can be made of hard or soft material.
  • the electronic atomization device 100 further includes a heating element 80 contained in the housing 10 .
  • the heating element 80 is electrically connected to the power supply 30 and can generate heat after being powered on.
  • the structure and heating form of the heating element 80 are not limited. For example, it can be a heating net, a heating sheet, a heating wire or a heating film.
  • the heating form can be resistance conduction heating, infrared radiation heating, electromagnetic induction heating or composite heating. Heated form.
  • An output channel 70 is also formed in the housing 10 , and the heating element 80 can be disposed in the output channel 70 and located above the nozzle 62 .
  • the liquid particles ejected from the nozzle 62 upwardly impact the heating element 80 and are heated by the heating element 80 to generate an aerosol.
  • the aerosol is then carried out of the output channel 70 by the air flow for the user to suck or inhale.
  • the nozzle 62 is used to atomize the continuously flowing liquid matrix into liquid particles and then evaporated by the heating element 80. Since the surface area of the fine liquid particles formed after atomization by the nozzle 62 is greatly expanded, it is easier to Heating and evaporation can, on the one hand, improve the conversion efficiency of heat and aerosol, and on the other hand, reduce the temperature of the evaporation process of the heating element 80 to achieve low-temperature atomization.
  • the liquid matrix mainly completes the physical change process, thus overcoming the problem of thermal cracking and deterioration of the liquid matrix caused by the necessity of high-temperature atomization under traditional porous ceramics or porous cotton conditions, not to mention the Burning, carbon deposition, heavy metal volatilization and other phenomena will occur, so that the unique ingredients and flavor and fragrance systems of different liquid bases can be maintained, and ultimately the inhaler can feel the unique taste corresponding to the original liquid base.
  • the heating element 80 is not in contact with the liquid storage chamber 610, and the heating element 80 does not need to be immersed in the liquid matrix for a long time, which reduces the contamination of the liquid matrix by the heating element 80, thereby reducing impurity gases in the aerosol generated after atomization.
  • the liquid particles ejected from the nozzle 62 can also hit the heating element 80 downward, that is, the heating element 80 can also be disposed below the nozzle 62; or, the liquid ejected from the nozzle 62 The particles may also impact the heating element 80 laterally, that is, the heating element 80 and the nozzle 62 are at or approximately at the same level.
  • the electronic atomization device 100 may not be provided with the heating element 80 , that is, the liquid particles atomized by the nozzle 62 may be directly output through the output channel 70 and sucked or inhaled by the user.
  • the housing 10 may also be provided with a bracket assembly 11, which divides the housing 10 into a first receiving space 121 located at the upper part and a second receiving space 122 located at the lower part.
  • the control module 20 , the power supply 30 , and the air source 40 can all be accommodated in the second accommodation space 122 .
  • the liquid storage atomization assembly 60 can be received in the first receiving space 121 and supported on the bracket assembly 11 .
  • the electronic atomization device 100 may further include a dust cover 90 detachably disposed on the upper end of the housing 10 .
  • the dust cover 90 can be placed on the upper end of the housing 10 to prevent dust and other impurities from entering the output channel 70 .
  • Figures 6-8 respectively illustrate a liquid reservoir 614 in some alternatives of the present invention, as an alternative to the liquid reservoir 614 in the above embodiment.
  • the liquid guide groove 6141 formed on the liquid reservoir 614 is in a square wave shape, which may include a plurality of linear first groove segments 6142 and is arranged on the plurality of first groove segments 6142.
  • Several square second groove segments 6143 are located on the same side of the groove segment 6142, that is, the plurality of second groove segments 6143 are spaced apart along one side of the extending direction of the liquid guide groove 6141.
  • the lengths of the plurality of first groove segments 6142 are equal, and the dimensions of the plurality of second groove segments 6143 (the length of each segment of each first groove segment 6142) are also equal.
  • the lengths of the plurality of first groove segments 6142 may also be unequal, and/or the sizes of the plurality of second groove segments 6143 may also be unequal.
  • the liquid guide groove 6141 formed on the liquid reservoir 614 is in a square wave shape, which may include several square first groove sections 6142 and several square second groove sections 6143 .
  • the plurality of first groove segments 6142 and the plurality of second groove segments 6143 are alternately distributed along both sides of the extending direction of the liquid guide groove 6141.
  • the size of the plurality of first groove segments 6142 (the length of each segment of each first groove segment 6142) is different, and the size of the plurality of second groove segments 6143 (the length of each segment of each second groove segment) 6143The length of each segment) also varies.
  • the sizes of the plurality of first groove segments 6142 may also be equal, and the sizes of the plurality of second groove segments 6143 may also be equal.
  • the size of the first groove section 6142 may be equal to or different from the size of the second groove section 6143.
  • the liquid guide groove 6141 formed on the liquid reservoir 614 is S-shaped.

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Abstract

本发明涉及一种电子雾化装置及其储液雾化组件，该储液雾化组件包括储液组件以及至少部分收容于储液组件的喷嘴。该喷嘴内形成有用于流通高速气流的气流通道，该储液组件内形成有储液腔以及分别与储液腔和气流通道相连通的导液通道，进入到气流通道的液态基质能够受气流通道中流通的高速气流作用而雾化。该储液组件包括相互贴合配合的第一表面和第二表面，该第一表面和第二表面中的至少一个设置有导液槽，该第一表面和第二表面贴合后，该导液槽形成导液通道。导液通道由两个表面贴合后形成，可根据导液通道不同的阻力要求来设计不同形状和尺寸的导液槽，导液槽易于加工制造，尺寸精度易于控制。

Description

电子雾化装置及其储液雾化组件 技术领域
本发明涉及雾化领域，更具体地说，涉及一种电子雾化装置及其储液雾化组件。
 背景技术
现有的电子雾化装置主要采用多孔陶瓷或者多孔棉等多孔介质结合发热部件进行加热雾化。由于雾化时加热温度较高，当液态基质供给不足时，发热部件上少量的液态基质不足以消耗掉发热部件上释放的电能，导致加热面温度进一步升高，从而进一步加剧液态基质的热裂解，甚至形成积碳和干烧的情况，很容易使形成的气溶胶产生烧焦的气味，导致口感显著变差。
 发明内容
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种改进的储液雾化组件及具有该储液雾化组件的电子雾化装置。
本发明解决其技术问题所采用的技术方案是：构造一种储液雾化组件，所述储液雾化组件包括储液组件以及至少部分收容于所述储液组件的喷嘴，所述喷嘴内形成有用于流通高速气流的气流通道，所述储液组件内形成有储液腔以及分别与所述储液腔和所述气流通道相连通的导液通道，进入到所述气流通道的液态基质能够受所述气流通道中流通的高速气流作用而雾化；
所述储液组件包括相互贴合配合的第一表面和第二表面，所述第一表面和所述第二表面中的至少一个设置有导液槽，所述第一表面和所述第二表面贴合后，所述导液槽形成所述导液通道。
在一些实施例中，所述第一表面和所述第二表面中的一个设置有所述导液槽，另一个为平面。
在一些实施例中，所述导液槽为曲线形或者折线形。
在一些实施例中，所述导液通道的延伸路径长度为3mm~100mm。
在一些实施例中，所述导液通道的截面尺寸为0.2mm~0.8mm。
在一些实施例中，所述储液组件包括储液主体、嵌置于所述储液主体一端的储液座以及套设于所述储液主体和所述储液座之间的密封套，所述储液腔形成于所述储液主体内。
在一些实施例中，所述第一表面、所述第二表面分别位于所述密封套、所述储液座上。
在一些实施例中，所述密封套为软质材料，所述储液座为硬质材料；或者，所述密封套为硬质材料，所述储液座为软质材料。
在一些实施例中，所述第一表面为平面，所述第二表面设置有所述导液槽；或者，所述第一表面设置有导液槽，所述第二表面为平面。
在一些实施例中，所述储液腔呈环状并环绕于所述气流通道的外围。
在一些实施例中，所述喷嘴还形成有进液通道，所述进液通道分别与所述导液通道和所述气流通道相连通。
在一些实施例中，所述进液通道的延伸方向与所述气流通道的延伸方向垂直。
在一些实施例中，所述进液通道为毛细通道。
在一些实施例中，所述气流通道包括供气通道和雾化腔，所述雾化腔分别与所述供气通道和所述导液通道相连通，所述雾化腔靠近所述供气通道的一端形成有雾化面，所述雾化面设置有连通所述供气通道和所述雾化腔的雾化口，流入所述雾化腔的液态基质能够在所述雾化面形成液膜，所述液膜能够被所述高速气流切割而形成液体颗粒。
在一些实施例中，所述雾化腔的孔壁面垂直于所述雾化面，且所述雾化口、所述雾化面、所述雾化腔的中轴线均重合。
在一些实施例中，所述气流通道还包括扩张通道，所述扩张通道与所述雾化腔远离所述供气通道的一端相连通，所述扩张通道的横截面积由靠近所述雾化腔的一端到远离所述雾化腔的一端逐渐增大。
在一些实施例中，所述扩张通道的孔壁面为流线形扩张形状，所述扩张通道与所述雾化腔之间为流线型平滑连接。
在一些实施例中，所述供气通道包括与所述雾化腔相连通的加速段，所述加速段的横截面积从远离所述雾化腔的一端到靠近所述雾化腔的一端逐渐减小。
在一些实施例中，所述储液腔内的液态基质的粘度范围为20cp~250cp。
本发明还提供一种电子雾化装置，包括如上述任一项所述的储液雾化组件。
实施本发明至少具有以下有益效果：本发明通过高速气流辅助将连续流动的液态基质雾化成液体颗粒，该雾化过程为非相变的雾化过程，能够实现低温雾化；此外，导液通道由两个表面贴合后形成，可根据导液通道不同的阻力要求来设计不同形状和尺寸的导液槽，导液槽易于加工制造，尺寸精度易于控制。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明一些实施例中电子雾化装置的立体结构示意图；
图2是图1所示电子雾化装置的纵向剖面结构示意图；
图3是图2中储液雾化组件的纵向剖视图；
图4是图3中喷嘴的纵向剖视图；
图5是图3所示储液雾化组件的剖面分解结构示意图；
图6是本发明第一替代方案中储液座的立体结构示意图；
图7是本发明第二替代方案中储液座的立体结构示意图；
图8是本发明第三替代方案中储液座的俯视图。
 实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
在本发明的描述中，需要理解的是，术语“纵向”、“横向”、“上”、“下”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系或者是本发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个、三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“上方”可以是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“下方”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
图1-3示出了本发明一些实施例中的电子雾化装置100，该电子雾化装置100可用于雾化液态基质以生成气溶胶，该气溶胶可供用户吸食或者吸入，其在本实施例中可大致呈圆柱状。可以理解地，在其他实施例中，该电子雾化装置100也可呈椭圆柱状、扁平柱状或方形柱状等其他形状。该液态基质可以包括烟油或药液等。
该电子雾化装置100可包括外壳10以及收容于外壳10中的控制模块20、电源30、气源40和储液雾化组件60。控制模块20与气源40电连接，用于接收指令，该指令可由用户触发或者在电子雾化装置100满足一定条件后自动触发，控制模块20再根据该指令控制气源40的工作。电源30分别与控制模块20、气源40电连接，用于向控制模块20、气源40提供电能。
储液雾化组件60包括储液组件61以及至少部分收容于储液组件61中的喷嘴62。其中，储液组件61内形成有用于存储液态基质的储液腔610以及与该储液腔610相连通的导液通道611，喷嘴62内形成有气流通道622及进液通道621，进液通道621连通气流通道622和导液通道611，以使储液腔610内的液态基质能够流入到气流通道622。气源40与气流通道622连接，用于提供高速气流在气流通道622中流通，其通常可以为气泵。从进液通道621进入到气流通道622的液态基质能够受气流通道622中流通的高速气流作用而产生雾化，形成细小的液体颗粒。
如图3-4所示，该喷嘴62可呈圆柱状，其可沿纵向设置于储液组件61中并可与储液组件61同轴设置。该储液雾化组件60包括还可包括密封地设置于喷嘴62和储液组件61之间的密封套65。该密封套65可采用硅胶等弹性材料制成，以提高喷嘴62和储液组件61之间的密封性能。气流通道622沿纵向贯穿喷嘴62并可与喷嘴62同轴设置，进液通道621由喷嘴62的一侧侧面沿横向向内延伸至与气流通道622相连通。气流通道622可包括供气通道623和雾化腔625。雾化腔625通过供气通道623与气源40连接，并通过进液通道621与储液腔610相连通。雾化腔625靠近供气通道623的一端端面形成雾化面6250，雾化面6250上还形成有雾化口6251。来自供气通道623的高速气流经由雾化口6251喷出到雾化腔625内并在雾化腔625中高速流动，高速气流由伯努利方程在雾化腔625和进液通道621内产生负压，此负压传导至储液腔610将储液腔610内的液态基质吸出至雾化腔625，在雾化面6250上形成液膜。随着供液过程的持续进行，液膜运动到雾化口6251的孔壁边缘与高速气流相遇，被高速气流切割雾化成细小的液体颗粒，该液体颗粒再被气流带离雾化口6251，之后随气流喷出完成雾化过程。该液态基质在雾化腔625内的雾化方式为非相变的雾化方式，雾化腔625雾化后形成的液体颗粒的粒径分布可达到SMD=30μm范围内。其中，SMD=液体颗粒总体积/液体颗粒总表面积，表示了液体颗粒的平均粒径。
雾化腔625为直柱状通道，其孔壁面与雾化面6250垂直。在本实施例中，雾化腔625为直圆柱形通道，雾化面6250为圆环状，雾化口6251位于雾化面6250的中心，雾化口6251、雾化面6250、雾化腔625均同轴设置。在其他实施例中，雾化腔625、雾化面6250或雾化口6251的横截面也可以是椭圆形或矩形等其他非圆形状。
雾化口6251、雾化腔625的尺寸和形状等参数能够影响雾化腔625内负压的大小以及生成的液体颗粒的粒径大小，并可使流量更稳定。在一些实施例中，雾化口6251的孔径、雾化腔625的孔径、雾化腔625的轴向长度可根据需要设置合适的尺寸。
具体地，雾化口6251的孔径与从雾化口6251出来的气流速度（m/s）相关，其能够影响生成的液体颗粒的粒径大小。在一些实施例中，雾化口6251的孔径范围可以为0.2mm~0.4mm ，优选为0.22mm~0.35mm。
雾化腔625的孔径会影响雾化腔625中的气流流速大小，从而影响雾化腔625、进液通道621内的负压大小。该负压可使液态基质从进液通道621吸至雾化腔625。在一些实施例中，雾化腔625的孔径范围可以为0.7mm~1.3mm。雾化腔625的轴向长度可以为0.8mm~3.0mm。可以理解地，在其他实施例中，雾化口6251或雾化腔625也可具有非圆横截面；当雾化口6251或雾化腔625具有非圆横截面时，雾化口6251的孔径或雾化腔625的孔径分别为其当量直径。术语“当量直径”是指，把水力半径相等的圆孔的直径定义为非圆孔的当量直径。
进一步地，在一些实施例中，雾化口6251的孔径范围为0.22mm~0.35mm，雾化腔625的轴向长度为1.5mm~3.0mm，雾化腔625的孔径范围为0.7mm~1.3mm，该取值范围能够使喷嘴62在制造工艺上得到优势。
进液通道621与雾化腔625相连通的一端具有一供液口6211，该供液口6211的中心与雾化面6250之间的垂直距离L是保证液膜形成的关键。在一些实施例中，供液口6211的中心与雾化面6250之间的垂直距离L的范围可以为0.3mm~0.8mm，较佳地，L为0.35mm~0.6mm。
进一步地，气流通道622还包括扩张通道626，该扩张通道626与雾化腔625远离供气通道623的一端连通，用于将雾化腔625内雾化后生成的液体颗粒以射流的形式扩散喷出，增大液体颗粒的喷射面积。扩张通道626的横截面积由靠近雾化腔625的一端到远离所述雾化腔625的一端逐渐增大。扩张通道626的雾化角（即扩张通道626的扩张角）须具有合适的范围，以保证喷射出的液体颗粒具有合适的喷射范围。具体地，在本实施例中，扩张通道626具有圆形横截面，且扩张通道626的孔径由下往上逐渐增大。进一步地，扩张通道626的孔壁面为流线形扩张形状，扩张通道626与雾化腔625之间采用流线型平滑连接，能够降低扩张通道626对射流卷吸涡的束缚作用，使得射流能够充分发展。在一些实施例中，可将扩张通道626的孔壁面通过倒圆角的方式形成圆弧面，并使扩张通道626与雾化腔625之间相切。可以理解地，在其他实施例中，扩张通道626也可以为椭圆锥形状或金字塔形状等其他形状。
供气通道623在一些实施例中可包括加速段6231，该加速段6231呈收缩形状，其横截面积从远离雾化腔625的一端到靠近雾化腔625的一端逐渐减小，从而能够将来自气源40的气流加速后喷出至雾化腔625。在本实施例中，加速段6231为沿纵向延伸且孔径由下往上逐渐减小的圆锥形通道，加速段6231的上端孔径小于雾化腔625的孔径，使得加速段6231和雾化腔625的交接处形成圆环形的雾化面6250。可以理解地，在其他实施例中，加速段6231也可以为椭圆锥形状或金字塔形状等其他收缩形状。
进一步地，供气通道623还包括与加速段6231连通的连通段6232，加速段6231通过连通段6232与气源40连接。连通段6232可以为沿纵向延伸的直圆柱形通道，连通段6232的上端与加速段6231相连通，连通段6232的孔径与加速段6231的下端孔径一致。在其他实施例中，连通段6232的横截面也可以是椭圆形或矩形等其他非圆形状。可以理解地，在其他实施例中，喷嘴62内形成的供气通道623也可仅包括加速段6231；或者，当气流流速足够时，供气通道623也可仅包括连通段6232。
进液通道621可以为直线形通道，其延伸方向与气流通道622的延伸方向垂直。较佳地，进液通道621为毛细通道，即液态基质在进液通道621内能够产生毛细力。在一些实施例中，进液通道621的截面积可小于0.08mm²。通过将进液通道621设计为毛细通道，并保证进液通道621具有一套关键尺寸（例如，通道截面积和通道长度），从而使得在抽吸结束、气源40停止工作时，进液通道621内的毛细力能够减少或避免进液通道621内的液态基质向储液腔610的回流，防止气源40停止工作时进液通道621内的液态基质回流至储液腔610而造成下一次抽吸时的供液延迟。在一些实施例中，进液通道621的截面积为0.07mm²（或孔径0.3mm），其通道长度≥2mm，气源40停止工作时进液通道621内的液态基质不会因储液腔610内的负压向储液腔610回流，可达到即时启动的效果。在另一些实施例中，进液通道621的截面积可以为0.05mm²，其通道长度≥1mm，也可达到即时启动的效果。在另一些实施例中，进液通道621的水力直径小于等于0.3mm，也可实现即起即停的稳定供液。通常，进液通道621的截面积越小，需要达到即时启动的效果所需的进液通道621的通道长度越小。
再如图3及图5所示，导液通道611能够用于调节储液腔610供液至气流通道622的下液量和下液速度，保证供液至气流通道622的流量达到设计值，实现气流通道622的定量供液。导液通道611内的阻力太小，则会导致下液量较多和下液速度较快；导液通道611内的阻力太大，则会导致下液量较少和下液速度减慢。通常，可按照流量需求匹配设计导液通道611的尺寸，即在设计流量下导液通道611能产生匹配供液动力的阻力。导液通道611内的阻力需求与气流通道622内的负压相关。具体地，气流通道622内产生的负压为供液动力，而供液阻力则包括导液通道611和进液通道621的沿程阻力以及储液腔610内的负压。通过计算设计流量下导液通道611所需的沿程阻力，设计导液通道611的具体直径与长度。
通常来说，液态基质的粘度越大，则液态基质在导液通道611中流通时的阻力越大；导液通道611的延伸长度越长，则导液通道611内的阻力越大；导液通道611的截面积越大，导液通道611内的阻力越小；导液通道611的曲折程度越多，导液通道611内的阻力越大。
导液通道611可形成于储液组件61中两个部件的相互配合的表面之间。具体地，储液组件61包括相互贴合配合的第一表面6130和第二表面6140，第一表面6130和第二表面6140中的至少一个设置有导液槽6141。第一表面6130和第二表面6140分别位于两个独立成型的部件上，在该两个部件装配在一起后，第一表面6130和第二表面6140相互贴合，使得导液槽6141处形成一密闭空腔，从而形成导液通道611。导液槽6141可根据不同的阻力要求来设计成不同的形状和尺寸，表面形状易于加工制造，尺寸精度易于控制，从而可得到不同形状和尺寸的导液通道611。在一些实施例中，液态基质的粘度范围可以为20cp~250cp，导液通道611的延伸路径长度可以为3mm~100mm，导液通道611的截面尺寸（例如孔径、长度或宽度等尺寸）可以为0.2mm~0.8mm。
具体地，在本实施例中，储液组件61包括储液主体612、嵌置于储液主体612底部的储液座614以及密封地设置于储液主体612和储液座614之间的密封套613。储液腔610形成于储液主体612内，其可呈圆环状并可由储液主体612的底面上凹形成。储液腔610环绕于气流通道622的外围并可与气流通道622同轴设置。储液座614嵌置于储液主体612的底部，以封盖住储液腔610。密封套613套设于储液座614上，将储液主体612和储液座614之间密封。在一些实施例中，密封套613可采用硅胶等弹性材料制成，储液主体612、储液座614可采用塑胶等硬质材料制成。在另一些实施例中，也可以是密封套613采用塑胶等硬质材料制成，储液主体612、储液座614采用硅胶等弹性材料制成。
在本实施例中，导液通道611形成于密封套613和储液座614之间。第一表面6130位于密封套613的下端面，且第一表面6130为平面，即第一表面6130未设置有导液槽6141。第二表面6140位于储液座614的上端面，其上设置有导液槽6141。在密封套613套设于储液座614上后，第一表面6130与第二表面6140贴合，第一表面6130与导液槽6141之间界定出导液通道611。由于导液槽6141设置于刚性的储液座614上，可避免组装后受挤压而导致导液通道611的尺寸发生变化。此外，由于密封套613为软性材料，从而能够确保导液通道611的密闭性，防止漏液。进一步地，在本实施例中，导液槽6141为直线形，从而使得导液通道611也呈直线形。密封套613的顶壁上还形成有将储液腔610与导液通道611相连通的下液口6131。导液通道611的一端与下液口6131相连通，另一端与雾化腔625相连通。可以理解地，在其他实施例中，导液槽6141、导液通道611也可呈曲线形（例如正弦状）或者折线形（例如方波状）等各种非直线形状，以便于在储液座614有限的空间距离内提供不同的阻力。
可以理解地，在其他实施例中，也可以是密封套613的下端面设置有导液槽6141，储液座614的上端面为平面；或者，也可以是密封套613的下端面、储液座614的上端面均设置有导液槽6141；或者，导液通道611也可形成于密封套613和储液主体612之间。在另一些实施例中，储液组件61也可不包括密封套613，即储液座614直接嵌置于储液主体612的底部与储液主体612直接连接，从而导液通道611也可形成于储液座614和储液主体612之间；此时，储液主体612可采用硬质材料制成，储液座614可采用硬质或软质材料制成。
进一步地，再如图2所示，该电子雾化装置100还包括收容于外壳10中的发热件80。该发热件80与电源30电连接，其能够在通电后发热。发热件80的结构和加热形式不受限制，例如其可以为发热网、发热片、发热丝或发热膜等结构，其加热形式可以为电阻传导加热、红外辐射加热、电磁感应加热或者复合加热等加热形式。外壳10内还形成有输出通道70，发热件80可设置于输出通道70中并位于喷嘴62的上方。由喷嘴62喷出的液体颗粒向上撞击发热件80，经过发热件80加热后生成气溶胶，该气溶胶再由气流带出输出通道70，以供用户吸食或者吸入。
本实施例通过采用喷嘴62将连续流动的液态基质雾化成液体颗粒后再由发热件80蒸发的方式，由于喷嘴62雾化后形成的细小液体颗粒的表面积得到了极大的扩展，从而更容易加热蒸发，一方面可提高热量及气溶胶的转化效率，另一方面可降低发热件80蒸发过程的温度，实现低温雾化。在较低的加热雾化温度下，液态基质主要完成物理变化过程，从而克服了传统的多孔陶瓷或者多孔棉条件下因必须采用高温方式雾化而导致的液态基质热裂解变质的问题，更不会发生烧焦、积碳和重金属挥发等现象，从而能够保持不同液态基质所特有的成分和香精香料体系，最终使吸入者感受到与原始液态基质相对应的特有的口感。此外，发热件80与储液腔610不接触，发热件80不用长期浸泡在液态基质中，减少了发热件80对液态基质的污染，从而减少了雾化后生成的气溶胶中的杂质气体。
可以理解地，在其他实施例中，由喷嘴62喷出的液体颗粒也可向下撞击发热件80，即，发热件80也可设置于喷嘴62的下方；或者，由喷嘴62喷出的液体颗粒也可横向撞击发热件80，即，发热件80与喷嘴62处于或大致处于同一水平高度上。在另一些实施例中，该电子雾化装置100中也可以不设置有发热件80，即，喷嘴62雾化后的液体颗粒可直接经输出通道70输出，被用户吸食或者吸入。
进一步地，外壳10中还可设置有支架组件11，该支架组件11将外壳10内分隔成位于上部的第一收容空间121以及位于下部的第二收容空间122。控制模块20、电源30、气源40均可收容于该第二收容空间122中。储液雾化组件60可收容于第一收容空间121中并可支撑于支架组件11上。
进一步地，该电子雾化装置100还可包括可拆卸地罩设于外壳10上端的防尘罩90。在不需要使用电子雾化装置100时，可将防尘罩90罩设于外壳10的上端，防止灰尘等杂质进入输出通道70。
图6-8分别示出了本发明一些替代方案中的储液座614，作为上述实施例中的储液座614的替代方案。
其中，在图6所示的第一替代方案中，储液座614上形成的导液槽6141呈方波形，其可包括若干个直线形的第一槽段6142以及设置于该若干个第一槽段6142同一侧的若干个方形的第二槽段6143，即该若干个第二槽段6143沿导液槽6141延伸方向的一侧间隔分布。在本实施例中，该若干个第一槽段6142的长度相等，该若干个第二槽段6143的尺寸（每一第一槽段6142各分段的长度）也相等。可以理解地，在其他实施例中，该若干个第一槽段6142的长度也可不相等，和/或，该若干个第二槽段6143的尺寸也可不相等。
在图7所示的第二替代方案中，储液座614上形成的导液槽6141呈方波形，其可包括若干个方形的第一槽段6142以及若干个方形的第二槽段6143。该若干个第一槽段6142、若干个第二槽段6143沿导液槽6141延伸方向的两侧交替分布。在本实施例中，该若干个第一槽段6142的尺寸（每一第一槽段6142各分段的长度）不等，该若干个第二槽段6143的尺寸（每一第二槽段6143各分段的长度）也不等。可以理解地，在其他实施例中，该若干个第一槽段6142的尺寸也可相等，该若干个第二槽段6143的尺寸也可相等。此外，第一槽段6142的尺寸也可与第二槽段6143的尺寸相等或不等。
在图8所示的第三替代方案中，储液座614上形成的导液槽6141呈S形。
可以理解地，上述各技术特征可以任意组合使用而不受限制。
以上实施例仅表达了本发明的优选实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制；应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，可以对上述技术特点进行自由组合，还可以做出若干变形和改进，这些都属于本发明的保护范围；因此，凡跟本发明权利要求范围所做的等同变换与修饰，均应属于本发明权利要求的涵盖范围。

Claims (20)

  1.  一种储液雾化组件，其特征在于，所述储液雾化组件（60）包括储液组件（61）以及至少部分收容于所述储液组件（61）的喷嘴（62），所述喷嘴（62）内形成有用于流通高速气流的气流通道（622），所述储液组件（61）内形成有储液腔（610）以及分别与所述储液腔（610）和所述气流通道（622）相连通的导液通道（611），进入到所述气流通道（622）的液态基质能够受所述气流通道（622）中流通的高速气流作用而雾化；
    所述储液组件（61）包括相互贴合配合的第一表面（6130）和第二表面（6140），所述第一表面（6130）和所述第二表面（6140）中的至少一个设置有导液槽（6141），所述第一表面（6130）和所述第二表面（6140）贴合后，所述导液槽（6141）形成所述导液通道（611）。
  2.  根据权利要求1所述的储液雾化组件，其特征在于，所述第一表面（6130）和所述第二表面（6140）中的一个设置有所述导液槽（6141），另一个为平面。
  3.  根据权利要求1所述的储液雾化组件，其特征在于，所述导液槽（6141）为曲线形或者折线形。
  4.  根据权利要求1所述的储液雾化组件，其特征在于，所述导液通道（611）的延伸路径长度为3mm~100mm。
  5.  根据权利要求1所述的储液雾化组件，其特征在于，所述导液通道（611）的截面尺寸为0.2mm~0.8mm。
  6.  根据权利要求1所述的储液雾化组件，其特征在于，所述储液组件（61）包括储液主体（612）、嵌置于所述储液主体（612）一端的储液座（614）以及套设于所述储液主体（612）和所述储液座（614）之间的密封套（613），所述储液腔（610）形成于所述储液主体（612）内。
  7.  根据权利要求6所述的储液雾化组件，其特征在于，所述第一表面（6130）、所述第二表面（6140）分别位于所述密封套（613）、所述储液座（614）上。
  8.  根据权利要求7所述的储液雾化组件，其特征在于，所述密封套（613）为软质材料，所述储液座（614）为硬质材料；
    或者，所述密封套（613）为硬质材料，所述储液座（614）为软质材料。
  9.  根据权利要求7所述的储液雾化组件，其特征在于，所述第一表面（6130）为平面，所述第二表面（6140）设置有所述导液槽（6141）；
    或者，所述第一表面（6130）设置有导液槽（6141），所述第二表面（6140）为平面。
  10.  根据权利要求6所述的储液雾化组件，其特征在于，所述储液腔（610）呈环状并环绕于所述气流通道（622）的外围。
  11.  根据权利要求1-10任一项所述的储液雾化组件，其特征在于，所述喷嘴（62）还形成有进液通道（621），所述进液通道（621）分别与所述导液通道（611）和所述气流通道（622）相连通。
  12.  根据权利要求11所述的储液雾化组件，其特征在于，所述进液通道（621）的延伸方向与所述气流通道（622）的延伸方向垂直。
  13.  根据权利要求11所述的储液雾化组件，其特征在于，所述进液通道（621）为毛细通道。
  14.  根据权利要求1-10任一项所述的储液雾化组件，其特征在于，所述气流通道（622）包括供气通道（623）和雾化腔（625），所述雾化腔（625）分别与所述供气通道（623）和所述导液通道（611）相连通，所述雾化腔（625）靠近所述供气通道（623）的一端形成有雾化面（6250），所述雾化面（6250）设置有连通所述供气通道（623）和所述雾化腔（625）的雾化口（6251），流入所述雾化腔（625）的液态基质能够在所述雾化面（6250）形成液膜，所述液膜能够被所述高速气流切割而形成液体颗粒。
  15.  根据权利要求14所述的储液雾化组件，其特征在于，所述雾化腔（625）的孔壁面垂直于所述雾化面（6250），且所述雾化口（6251）、所述雾化面（6250）、所述雾化腔（625）的中轴线均重合。
  16.  根据权利要求14所述的储液雾化组件，其特征在于，所述气流通道（622）还包括扩张通道（626），所述扩张通道（626）与所述雾化腔（625）远离所述供气通道（623）的一端相连通，所述扩张通道（626）的横截面积由靠近所述雾化腔（625）的一端到远离所述雾化腔（625）的一端逐渐增大。
  17.  根据权利要求16所述的储液雾化组件，其特征在于，所述扩张通道（626）的孔壁面为流线形扩张形状，所述扩张通道（626）与所述雾化腔（625）之间为流线型平滑连接。
  18.  根据权利要求14所述的储液雾化组件，其特征在于，所述供气通道（623）包括与所述雾化腔（625）相连通的加速段（6231），所述加速段（6231）的横截面积从远离所述雾化腔（625）的一端到靠近所述雾化腔（625）的一端逐渐减小。
  19.  根据权利要求1-10任一项所述的储液雾化组件，其特征在于，所述储液腔（610）内的液态基质的粘度范围为20cp~250cp。
  20.  一种电子雾化装置，其特征在于，包括如权利要求1-19任一项所述的储液雾化组件。
PCT/CN2023/079138 2022-04-29 2023-03-01 电子雾化装置及其储液雾化组件 WO2023207322A1 (zh)

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