WO2023207366A1 - Electronic atomization device, and liquid storage and atomization assembly therefor - Google Patents

Electronic atomization device, and liquid storage and atomization assembly therefor Download PDF

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Publication number
WO2023207366A1
WO2023207366A1 PCT/CN2023/080925 CN2023080925W WO2023207366A1 WO 2023207366 A1 WO2023207366 A1 WO 2023207366A1 CN 2023080925 W CN2023080925 W CN 2023080925W WO 2023207366 A1 WO2023207366 A1 WO 2023207366A1
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WO
WIPO (PCT)
Prior art keywords
liquid storage
liquid
atomization
channel
chamber
Prior art date
Application number
PCT/CN2023/080925
Other languages
French (fr)
Chinese (zh)
Inventor
杨豪
刘成川
高椋
林作飘
雷桂林
Original Assignee
海南摩尔兄弟科技有限公司
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Application filed by 海南摩尔兄弟科技有限公司 filed Critical 海南摩尔兄弟科技有限公司
Publication of WO2023207366A1 publication Critical patent/WO2023207366A1/en

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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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

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.
  • Electronic atomization devices generally heat the liquid matrix in the atomization chamber and supply liquid to the atomization chamber.
  • the flow rate of the liquid to the atomization chamber has a significant impact on the performance of the electronic atomization device. If the liquid supply volume is too large, problems of incomplete atomization and liquid leakage may occur. If the liquid supply is insufficient, the aerosol formed will easily produce a burnt smell, resulting in 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, which is formed with a liquid storage cavity for storing a liquid substrate, an airflow channel for circulating high-speed airflow, and A resistance liquid supply channel connects the liquid storage chamber to the air flow channel, and the resistance liquid supply channel is configured to control the flow of liquid supplied from the liquid storage cavity to the air flow channel.
  • the high-speed airflow circulating in the airflow channel generates a negative pressure in the airflow channel, and the negative pressure can suck the liquid matrix in the liquid storage chamber into the airflow channel and into the airflow channel.
  • the liquid matrix of the air flow channel is atomized by the high-speed air flow circulating in the air flow channel.
  • the resistance liquid supply channel includes a main body section connected to the liquid storage chamber and a liquid supply end section connected to the main body section and the air flow channel, and the cross-sectional area of the main body section is larger than the Describe the cross-sectional area of the final liquid supply section.
  • the main body section is a weak capillary channel
  • the liquid supply end section is a capillary channel
  • the cross-sectional area of the main body segment ranges from 0.09 mm2 to 0.16 mm2.
  • the cross-sectional area of the final liquid supply section is less than 0.08mm2.
  • the hydraulic diameter of the final liquid supply section is less than or equal to 0.3 mm.
  • the body segment is a linear or non-linear channel.
  • the liquid supply end section is a linear channel, and the extension direction of the liquid supply end section is perpendicular to the extension direction of the air flow channel.
  • the extension length of the resistance liquid supply channel is 6 mm ⁇ 15 mm.
  • 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 resistance liquid supply channel respectively.
  • the atomization chamber is close to the supply channel.
  • One end surface of the air channel forms an atomization surface, and the atomization surface is provided with an atomization port that connects the air supply channel and the atomization chamber.
  • the liquid substrate flowing into the atomization chamber can flow on the atomization surface. A liquid film is formed, which can be cut by the high-speed airflow to form liquid particles.
  • the atomization surface is also provided with a liquid-locking groove capable of generating capillary force.
  • the central axes of the atomization port, the atomization surface, and the liquid lock groove all coincide.
  • 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 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 atomization surface is provided with a liquid-locking groove, and the liquid-locking groove is recessed downward in a direction perpendicular to the atomization surface, or the liquid-locking groove is formed by the atomization surface.
  • the outer edge is concave upward and outward.
  • the liquid storage atomization assembly includes a liquid storage shell and a nozzle at least partially housed in the liquid storage shell, the liquid storage cavity is formed in the liquid storage shell, and the air flow channel is formed in the liquid storage shell. inside the nozzle.
  • the liquid storage shell is also formed with a ventilation channel that communicates the liquid storage chamber with the outside world.
  • the liquid storage shell includes a liquid storage body and a liquid storage seat that cooperate with each other, the liquid storage chamber is formed in the liquid storage body, and the ventilation channel includes a liquid storage body formed in the liquid storage seat. Ventilation slots on the outer surface.
  • 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 controls the flow rate of liquid supply from the liquid storage chamber to the air flow channel through the resistance liquid supply channel, and can design the size and shape of the resistance liquid supply channel according to the flow demand matching to ensure the supply of liquid to the liquid storage cavity.
  • the flow rate from liquid to air flow channel reaches the design value.
  • 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 shows the stress situation of the liquid matrix in the liquid inlet channel when suction is stopped
  • Figure 5 is a longitudinal cross-sectional view of the liquid storage atomization assembly shown in Figure 3 from another angle;
  • Figure 6 is a schematic diagram of the exploded structure of the liquid storage atomization assembly shown in Figure 3;
  • Figure 7 is a schematic structural diagram of the longitudinal section of the nozzle in Figure 3.
  • Figure 8 is a dimensioned diagram of the nozzle shown in Figure 7;
  • Figure 9 is a schematic structural diagram of the longitudinal section of the nozzle in the first alternative of the present invention.
  • Figure 10 is a schematic structural diagram of a longitudinal section of the nozzle in the second alternative 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 restrictions. 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 case 61 and a nozzle 62 at least partially received in the liquid storage case 61 .
  • a liquid storage chamber 610 for storing liquid substrate is formed in the liquid storage shell 61
  • an air flow channel 622 is formed in the nozzle 62
  • a resistance supply connecting the liquid storage cavity 610 and the air flow channel 622 is also formed in the liquid storage atomization assembly 60.
  • Liquid channel 611 so that the liquid matrix in the liquid storage chamber 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 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 resistance liquid supply channel 611 can be atomized by the high-speed air flow flowing in the air flow channel 622 to form fine liquid particles.
  • the resistance liquid supply channel 611 includes a liquid supply end section 621 connected with the air flow channel 622 and a main body section 612 connected with the liquid supply end section 621 and the liquid storage chamber 610 .
  • the final liquid supply section 621 can be a capillary channel, that is, the liquid matrix can generate capillary force in the final liquid supply section 621 .
  • the cross-sectional area of the liquid supply end section 621 may be less than 0.08mm2.
  • the negative pressure generated by the high-speed air flow in the resistance liquid supply channel 611 disappears, and the power for the liquid matrix in the resistance liquid supply channel 611 to flow toward the nozzle 62 disappears, while the liquid storage There is a negative pressure in the chamber 610, and the negative pressure in the liquid storage chamber 610 will suck back the liquid matrix in the final liquid supply section 621, causing the liquid supply to be delayed during the next suction.
  • the liquid supply end section 621 of the resistance liquid supply channel 611 close to the air flow channel 622 as a capillary channel, and ensuring that the liquid supply end section 621 has a set of critical dimensions (for example, channel cross-sectional area and channel length), the liquid supply can be utilized
  • the capillary force in the final section 621 reduces backflow to achieve a stable liquid supply that starts and stops, and prevents the liquid substrate from flowing back to the liquid storage chamber 610 when the gas source 40 stops working, causing a delay in liquid supply during the next suction.
  • Figure 4 shows the stress situation of the liquid matrix 200 in the final liquid supply section 621 after the suction is stopped and the air source 40 stops working. After the air source 40 stops working, the power of the liquid substrate in the final liquid supply section 621 to flow toward the nozzle 62 disappears. The force on the liquid substrate 200 in the final liquid supply section 621 on the gas-liquid interface 201 and the movement of the liquid surface The situation is:
  • the liquid level will continue to move toward the liquid storage chamber 610 until enough liquid matrix flows back to the liquid storage chamber 610, so that ⁇ P is reduced to balance with ⁇ P gross due to the rise of the liquid level in the liquid storage chamber 610.
  • the liquid level movement will stop, and a relatively large cavity will be formed in the resistance liquid supply channel 611 at this time, resulting in a long delay when the air source 40 is started next time;
  • ⁇ P negative pressure in the liquid storage chamber 610 - gravity of the liquid matrix in the liquid storage chamber 610
  • ⁇ P capillary force in the final liquid supply section 621.
  • the cross-sectional area of the final liquid supply section 621 is 0.07mm2 (or aperture 0.3mm), and the channel length is ⁇ 2mm.
  • the cross-sectional area of the liquid supply end section 621 can be 0.05mm2, and the channel length is ⁇ 1mm, which can also achieve stable liquid supply that starts and stops.
  • the hydraulic diameter of the final liquid supply section 621 is less than or equal to 0.3 mm, and stable liquid supply that starts and stops can also be achieved.
  • the resistance liquid supply channel 611 can also be used to control the flow rate of liquid supply to the air flow channel 622, to achieve quantitative liquid supply to the air flow channel 622, and to ensure the flow rate of liquid supply to the air flow channel 622. reach the design value.
  • the size of the designed resistance liquid supply channel 611 can be matched according to the flow demand, that is, the resistance liquid supply channel 611 can generate resistance that matches the liquid supply power under the design flow rate.
  • 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 supply channel 611 and the negative pressure in the liquid storage chamber 610 .
  • the greater the viscosity of the liquid matrix the greater the resistance of the liquid matrix when flowing in the resistance liquid supply channel 611; the longer the length of the resistance liquid supply channel 611, the greater the resistance in the resistance liquid supply channel 611. ;
  • the viscosity of the liquid matrix is 20cp ⁇ 250cp; the overall length of the resistance liquid supply channel 611 is 6mm ⁇ 15mm.
  • the final liquid supply section 621 and the main body section 612 are both linear channels extending laterally, and the central axes of the final liquid supply section 621 and the main body section 612 coincide with each other.
  • the main body section 612 is a weak capillary force channel, that is, the liquid matrix can generate weak capillary force in the main body section 612 .
  • the cross-sectional area of the main body section 612 is larger than the cross-sectional area of the final liquid supply section 621. In some embodiments, the cross-sectional area of the main body section 612 can range from 0.09 mm2 to 0.16 mm2. In other embodiments, the main body segment 612 may also be a non-linear extending channel, such as an S-shape or a square wave shape.
  • the final liquid supply section 621 is formed in the nozzle 62
  • the main section 612 is formed in the liquid storage shell 61 .
  • the nozzle 62 generally has a cylindrical shape, which can be longitudinally inserted into the liquid storage case 61 and can be disposed coaxially with the liquid storage case 61 .
  • the airflow channel 622 runs through the nozzle 62 longitudinally and may be coaxially disposed with the nozzle 62 .
  • the liquid supply end section 621 extends laterally inward from one side of the nozzle 62 to communicate with the air flow channel 622 , and the extension direction of the liquid supply end section 621 is perpendicular to the extension direction of the air flow channel 622 .
  • the shape of the nozzle 62 may also be in other shapes such as an ellipse or a square.
  • the liquid supply end section 621 can also be partially formed in the nozzle 62 and partially formed in the liquid storage shell 61; or, the main body section 612 can also be partially formed in the nozzle 62 and partially formed in the liquid storage shell. inside the shell 61.
  • 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 final liquid supply section 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 generates a negative pressure in the final liquid supply section 621 according to Bernoulli's equation.
  • the 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 a liquid film is formed on the atomization surface 6250.
  • 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 in the shape of concentric rings
  • the inner wall surface of the atomization surface 6250 defines the atomization port 6251.
  • 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 D of the atomization port 6251, the aperture W1 of the atomization chamber 625, and the length H of the atomization chamber 625 can be set to appropriate sizes as needed.
  • the aperture D of the atomization port 6251 is related to the airflow speed (m/s) coming out of the atomization port 6251, which can affect the particle size of the generated liquid particles.
  • the aperture D of the atomization port 6251 may range from 0.2mm to 0.4mm, preferably from 0.22mm to 0.35mm.
  • the aperture W1 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 final liquid supply section 621. This negative pressure can cause the liquid substrate to be sucked from the final liquid supply section 621 to the atomization chamber 625 .
  • the aperture W1 of the atomization chamber 625 may range from 0.7 mm to 1.3 mm.
  • the length H of the atomization chamber 625 may 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 D or the aperture W1 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 range of D is 0.22mm ⁇ 0.35mm
  • the range of H is 1.5mm ⁇ 3.0mm
  • the range of W1 is 0.7mm ⁇ 1.3mm.
  • the value ranges of D, H, and W1 can be This gives the nozzle 62 advantages in the manufacturing process.
  • the end of the liquid supply end section 621 that communicates with the atomization chamber 625 has a liquid supply port 6210.
  • the distance L between the liquid supply port 6210 and the atomization surface 6250 is the key to ensuring the formation of a liquid film.
  • the distance L between the liquid supply port 6210 and the atomization surface 6250 is the vertical distance between the center of the liquid supply port 6210 and the atomization surface 6250.
  • the distance L between the liquid supply port 6210 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 expansion channel 626 is a conical channel that extends longitudinally and has a hole diameter that gradually increases from bottom to top.
  • 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 atomization angle ⁇ of the expansion channel 626 may be 30 0 ⁇ 70 0 .
  • the expansion channel 626 and the atomization chamber 625 can also be connected in a streamlined and smooth manner, for example, through rounding.
  • the expansion channel 626 may also have an elliptical cone shape, a pyramid shape, or other shapes.
  • 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 storage shell 61 may include a liquid storage body 613 and a liquid storage base 614 that cooperate with each other.
  • the liquid storage chamber 610 and the main body section 612 are both formed in the liquid storage main body 613 .
  • the bottom surface of the liquid storage body 613 is concave to form an annular liquid storage cavity 610
  • the side wall of the liquid storage cavity 610 close to the nozzle 62 extends transversely toward the nozzle 62 to form a main body section 612 .
  • the liquid storage chamber 610 and/or the main body section 612 can also be formed in the liquid storage seat 614, or can also be partially formed in the liquid storage main body 613 and partially in the liquid storage seat 614. .
  • a liquid injection channel 615 connected to the liquid storage chamber 610 may be formed on the liquid storage shell 61 so that liquid can be injected into the liquid storage chamber 610 again after the liquid matrix in the liquid storage chamber 610 is used up.
  • the liquid injection channel 615 is formed in the liquid storage body 613 and extends longitudinally, and the lower end of the liquid injection channel 615 is connected with the liquid storage chamber 610 .
  • the liquid storage shell 61 is also formed with a receiving hole 6136 and a cavity 6130 connected with the receiving hole 6136.
  • the receiving hole 6136 and the cavity 6130 can extend longitudinally and can be arranged coaxially with the liquid storage shell 61.
  • the receiving hole 6136 is used to receive the nozzle 62, which can extend upward longitudinally from the lower end surface of the liquid storage case 61.
  • the cavity 6130 can extend longitudinally downward from the upper end surface of the liquid storage shell 61 to communicate with the receiving hole 6136 .
  • the cross-sectional area of the cavity 6130 can be larger than the cross-sectional area of the receiving hole 6136, so that a liquid storage surface 6131 is formed at one end of the cavity 6130 close to the receiving hole 6136.
  • liquid storage tanks 6132 with capillary force can also be formed on the liquid storage surface 6131.
  • the plurality of liquid storage tanks 6132 can collect and store a certain amount of condensate to prevent the condensate accumulated on the liquid storage surface 6131 from flowing back to the liquid storage surface 6131.
  • the groove width of the liquid reservoir 6132 may be less than or equal to 0.6 mm.
  • the upper end surface of the nozzle 62 can be higher than the liquid storage surface 6131 of its circumference to prevent condensate from the liquid storage surface 6131 from entering the nozzle 62 and blocking the air passage.
  • the plurality of liquid storage tanks 6132 may include several first liquid storage tanks 6133 and several annular second liquid storage tanks 6134.
  • Each first liquid storage tank 6133 can extend along the radial direction of the liquid storage surface 6131, and one end of the first liquid storage tank 6133 away from the center of the liquid storage surface 6131 can be connected with a second liquid storage tank 6134 in the outermost ring.
  • One end of the first liquid storage tank 6133 close to the center of the liquid storage surface 6131 can be connected with a second liquid storage tank 6134 in the innermost ring.
  • the liquid storage surface 6131 can also be designed in a convex shape, for example, it can be a spherical arc surface or a conical surface.
  • the height of the liquid storage surface 6131 gradually decreases from the center to the periphery, which is beneficial to the vicinity of the center of the liquid storage surface 6131.
  • the condensate flows and spreads to the periphery to prevent the condensate near the center of the liquid storage surface from being blown away directly without being atomized.
  • the liquid storage surface 6131 can also be inclined toward the nozzle 62, that is, the height of the liquid storage surface 6131 gradually decreases from the periphery to the center, and the upper end surface of the nozzle 62 can also be lower than or flush with the liquid storage surface around it. surface 6131, so that the condensate accumulated on the liquid storage surface 6131 can flow back to the nozzle 62 for re-atomization.
  • a liquid conduction channel 6135 connecting the plurality of liquid storage tanks 6132 with the atomization chamber 625 can also be formed in the liquid storage shell 61, so that the negative pressure in the atomization cavity 625 can push the liquid in the liquid storage tank 6132 The stored condensate is sucked back into the atomization chamber 625 and atomized again.
  • a back-suction channel 624 is also formed in the nozzle 62 to connect the liquid guide channel 6135 with the atomization chamber 625 .
  • the liquid guide channel 6135 and the back-suction channel 624 can also be capillary channels.
  • the aperture or equivalent diameter of the liquid guide channel 6135 and the back-suction channel 624 can be less than or equal to 0.4 mm.
  • the cross-sectional area of the liquid guide channel 6135 and the back-suction channel 624 can be less than or equal to 0.4 mm. Equal to 0.126mm2.
  • One end of the back suction channel 624 connected to the atomization chamber 625 has a back suction port 6240, and the vertical distance between the center of the back suction port 6240 and the atomization surface 6250 can be 0.3mm ⁇ 0.8mm.
  • the suction channel 624 and the final liquid supply section 621 are arranged rotationally symmetrically with respect to the central axis of the nozzle 62, so that the installation direction does not need to be considered when assembling the nozzle 62.
  • the liquid storage shell 61 can also be formed with a ventilation channel 6140 that connects the liquid storage chamber 610 with the outside world.
  • the ventilation channel 6140 can be used to restore the pressure in the liquid storage chamber 610 by utilizing the negative pressure area of the nozzle 62 and the ventilation channel 6140 .
  • the air channel 6140 cooperates to realize automatic and stable liquid supply to the nozzle 62, thereby solving the problem of unable to stably supply liquid due to excessive negative pressure in the liquid storage chamber 610.
  • the reduction of the liquid matrix in the liquid storage chamber 610 will cause the air pressure to decrease.
  • the controllable negative pressure range of the liquid storage chamber 610 is -200Pa ⁇ -700Pa. It is understood that in other embodiments, other automatic or non-automatic liquid supply methods can also be used to achieve quantitative and stable liquid supply to the nozzle 62 , for example, a small liquid supply pump (such as a diaphragm pump or a peristaltic pump, etc.) can be used.
  • a small liquid supply pump such as a diaphragm pump or a peristaltic pump, etc.
  • the liquid storage chamber 610 is pressurized to maintain the stability of the liquid supply and realize a quantitative and stable liquid supply to the nozzle 62; alternatively, the wall of the liquid storage chamber 610 can also be set to be flexible and have no air inside. To solve the problem that the negative pressure of the liquid storage chamber 610 is too large and cannot supply liquid.
  • the ventilation channel 6140 may include a ventilation groove 6142 formed on the outer surface of the liquid storage case 61 and a ventilation hole 6141 formed in the liquid storage case 61 .
  • the ventilation holes 6141 are respectively connected to the liquid storage chamber 610 and the ventilation groove 6142, and are connected to the outside world through the ventilation groove 6142.
  • the ventilation groove 6142 can adopt a direct liquid ventilation structure and can be formed on the outer surface of the liquid reservoir 614 .
  • the ventilation groove 6142 may include a plurality of rotation grooves 6143 and a plurality of communication grooves 6144 connecting the plurality of rotation grooves 6143.
  • Each rotating groove 6143 can be annular and extend along the circumferential direction of the liquid reservoir 614.
  • each rotating groove 6143 can range from 0.04mm2 to 0.16mm2, and the total length of the plurality of rotating grooves 6143 can range from 3mm to 3mm. 12mm.
  • Each communication groove 6144 extends along the axial direction of the liquid reservoir 614. The upper end of each communication groove 6144 is connected to the uppermost rotation groove 6143, and the lower end is connected to the lowermost rotation groove 6143.
  • There may also be multiple communication grooves 6144 and the plurality of communication grooves 6144 may be evenly spaced along the circumferential direction of the liquid reservoir 614 .
  • the liquid storage atomization assembly 60 may further include a fixed cover 63 .
  • the fixed cover 63 is in the shape of a cylinder with an open upper end.
  • the fixing member 64 is sleeved on the liquid storage body 613 and the liquid storage seat 614 and can be interlocked and fixed with the liquid storage body 613 to connect the liquid storage body 613 and the liquid storage seat 614 to each other.
  • the fixed cover 63 can be made of metal. The thermal expansion and contraction deformation of the metal material when the temperature changes is small, making the connection and fixation between the various components in the liquid storage atomization assembly 60 more stable and reliable.
  • a vent 630 can also be provided on the side wall of the fixed cover 63 , and a vent groove 6145 is formed on the outer surface of the liquid storage seat 614 to connect the plurality of rotation grooves 6143 with the vent 630 .
  • the vent 630 can be opened at the bottom of the side wall of the fixed cover 63 , and the vent groove 6145 can extend longitudinally upward from the bottom surface of the side wall of the liquid storage seat 614 to communicate with the bottom rotation groove 6143 .
  • the ventilation hole 6141 can extend laterally inward from one of the rotating grooves 6143 to communicate with the liquid storage chamber 610 .
  • the ventilation hole 6141 extends laterally inward from the uppermost rotating groove 6143 to communicate with the liquid storage chamber 610 .
  • 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 an airflow sensing element 50 disposed in the housing 10 and electrically connected to the control module 20 .
  • the airflow sensing element 50 can be accommodated at the bottom of the bracket assembly 11 and can sense changes in the airflow when the user inhales. It can usually be a negative pressure sensor, such as a microphone. The user's suction action creates negative pressure, and the airflow sensing element 50 senses the negative pressure to generate a suction signal.
  • the suction signal can be transmitted to the control module 20 to control the operation of the air source 40 and/
  • 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 .
  • Figure 9 shows the nozzle 62 in the first alternative of the present invention.
  • the atomization surface 6250 of the nozzle 62 in this embodiment is also provided with a liquid lock groove 6252.
  • Capillary force can be generated in the groove 6252, and the capillary force can be used to flatten the liquid film, so that even when the nozzle 62 is in a tilted state, the liquid film can still be evenly distributed and atomized near the atomization port 6251, thereby reducing the influence of gravity on the distribution of the liquid film.
  • the liquid lock groove 6252 is annular and can be disposed coaxially with the atomization port 6251. It can be formed by the atomization surface 6250 being recessed longitudinally downward, that is, along the direction perpendicular to the atomization surface 6250. A lower depression forms.
  • the inner diameter of the liquid locking groove 6252 is larger than the aperture of the atomization port 6251, and the outer diameter of the liquid locking groove 6252 is smaller than the aperture of the atomization chamber 625.
  • the nozzle 62 is formed with a final liquid supply section 621 and a front liquid supply section 624.
  • the final liquid supply section 621 is connected to the atomization chamber 625, and the front liquid supply section 624 is far away from the final liquid supply section 621.
  • One end of the atomization chamber 625 is connected.
  • the structure of the final liquid supply section 621 is similar to the relevant description in the above embodiment, and will not be described again here.
  • the liquid supply front section 624 is a weak capillary force channel, which forms a part of the main body section 612 in the above embodiment.
  • Figure 10 shows the nozzle 62 in the second alternative of the present invention.
  • the liquid lock groove 6252 in this embodiment is recessed upward and outward from the outer edge of the atomization surface 6250. is formed, and the liquid-locking groove 6252 is in the shape of a circumferentially non-closed C-shaped ring.
  • the liquid-locking groove 6252 can be formed on the side of the atomization surface 6250 opposite to the liquid supply end section 621.
  • the inner diameter of the liquid-locking groove 6252 is consistent with the aperture of the atomization chamber 625.
  • the outer diameter of the liquid-locking groove 6252 is larger than the atomization chamber 625.
  • the arc center angle of the liquid lock tank 6252 can be 180° ⁇ 350°.

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Abstract

An electronic atomization device (100) and a liquid storage and atomization assembly (60) therefor. A liquid storage cavity (610), an airflow channel (622), and a resistance type liquid supply channel (611) by means of which the liquid storage cavity (610) is in communication with the airflow channel (622) are formed in the liquid storage and atomization assembly (60), wherein the resistance type liquid supply channel (611) is configured to control the flow of liquid supplied from the liquid storage cavity (610) to the airflow channel (622). Since the flow of the liquid supplied from the liquid storage cavity (610) to the airflow channel (622) is controlled by the resistance type liquid supply channel (611), the size and the shape of the resistance type liquid supply channel (611) can be designed according to flow requirement matching, thereby ensuring that the flow of the liquid supplied from the liquid storage cavity (610) to the airflow channel (622) reaches a designed value.

Description

电子雾化装置及其储液雾化组件Electronic atomization device and its liquid storage atomization component 技术领域Technical field
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。The present invention relates to the field of atomization, and more specifically, to an electronic atomization device and a liquid storage atomization assembly thereof.
背景技术Background technique
电子雾化装置一般通过在雾化腔内将液态基质加热雾化储液腔供液至雾化腔的流量大小对电子雾化装置的性能有显著的影响。供液量过大，会产生雾化不完全以及漏液的问题。供液量不足，则容易使形成的气溶胶产生烧焦的气味，导致口感显著变差。Electronic atomization devices generally heat the liquid matrix in the atomization chamber and supply liquid to the atomization chamber. The flow rate of the liquid to the atomization chamber has a significant impact on the performance of the electronic atomization device. If the liquid supply volume is too large, problems of incomplete atomization and liquid leakage may occur. If the liquid supply is insufficient, the aerosol formed will easily produce a burnt smell, resulting in a significant deterioration in taste.
发明内容Contents of the invention
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。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.
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，所述储液雾化组件内形成有用于存储液态基质的储液腔、用于流通高速气流的气流通道以及将所述储液腔与所述气流通道相连通的阻力供液通道，所述阻力供液通道被配置为用于控制所述储液腔供液至所述气流通道的流量。The technical solution adopted by the present invention to solve the technical problem is to construct a liquid storage atomization assembly, which is formed with a liquid storage cavity for storing a liquid substrate, an airflow channel for circulating high-speed airflow, and A resistance liquid supply channel connects the liquid storage chamber to the air flow channel, and the resistance liquid supply channel is configured to control the flow of liquid supplied from the liquid storage cavity to the air flow channel.
在一些实施例中，在所述气流通道中流通的高速气流使所述气流通道内产生负压，所述负压能够将所述储液腔中的液态基质吸出至所述气流通道，进入到所述气流通道的液态基质受所述气流通道中流通的高速气流作用而雾化。In some embodiments, the high-speed airflow circulating in the airflow channel generates a negative pressure in the airflow channel, and the negative pressure can suck the liquid matrix in the liquid storage chamber into the airflow channel and into the airflow channel. The liquid matrix of the air flow channel is atomized by the high-speed air flow circulating in the air flow channel.
在一些实施例中，所述阻力供液通道包括与所述储液腔相连通的主体段以及连通所述主体段和所述气流通道的供液末段，所述主体段的截面积大于所述供液末段的截面积。In some embodiments, the resistance liquid supply channel includes a main body section connected to the liquid storage chamber and a liquid supply end section connected to the main body section and the air flow channel, and the cross-sectional area of the main body section is larger than the Describe the cross-sectional area of the final liquid supply section.
在一些实施例中，所述主体段为弱毛细通道，所述供液末段为毛细通道。In some embodiments, the main body section is a weak capillary channel, and the liquid supply end section is a capillary channel.
在一些实施例中，所述主体段的截面积范围为0.09 mm²~0.16mm²。In some embodiments, the cross-sectional area of the main body segment ranges from 0.09 mm² to 0.16 mm².
在一些实施例中，所述供液末段的截面积小于0.08mm²。In some embodiments, the cross-sectional area of the final liquid supply section is less than 0.08mm².
在一些实施例中，所述供液末段的水力直径小于等于0.3mm。In some embodiments, the hydraulic diameter of the final liquid supply section is less than or equal to 0.3 mm.
在一些实施例中，所述主体段为直线形或非直线形通道。In some embodiments, the body segment is a linear or non-linear channel.
在一些实施例中，所述供液末段为直线形通道，所述供液末段的延伸方向与所述气流通道的延伸方向垂直。In some embodiments, the liquid supply end section is a linear channel, and the extension direction of the liquid supply end section is perpendicular to the extension direction of the air flow channel.
在一些实施例中，所述阻力供液通道的延伸长度为6mm~15mm。In some embodiments, the extension length of the resistance liquid supply channel is 6 mm ~ 15 mm.
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阻力供液通道相连通，所述雾化腔靠近所述供气通道的一端端面形成雾化面，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。In some embodiments, 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 resistance liquid supply channel respectively. The atomization chamber is close to the supply channel. One end surface of the air channel forms an atomization surface, and the atomization surface is provided with an atomization port that connects the air supply channel and the atomization chamber. The liquid substrate flowing into the atomization chamber can flow on the atomization surface. A liquid film is formed, which can be cut by the high-speed airflow to form liquid particles.
在一些实施例中，所述雾化面还设置有能够产生毛细力的锁液槽。In some embodiments, the atomization surface is also provided with a liquid-locking groove capable of generating capillary force.
在一些实施例中，所述雾化口、所述雾化面、所述锁液槽的中轴线均重合。In some embodiments, the central axes of the atomization port, the atomization surface, and the liquid lock groove all coincide.
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。In some embodiments, 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.
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。In some embodiments, 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.
在一些实施例中，所述雾化面设置有锁液槽，所述锁液槽沿垂直于所述雾化面的方向向下凹陷形成，或者，所述锁液槽由所述雾化面的外缘向上、向外凹陷形成。In some embodiments, the atomization surface is provided with a liquid-locking groove, and the liquid-locking groove is recessed downward in a direction perpendicular to the atomization surface, or the liquid-locking groove is formed by the atomization surface. The outer edge is concave upward and outward.
在一些实施例中，所述储液雾化组件包括储液壳以及至少部分收容于所述储液壳的喷嘴，所述储液腔形成于所述储液壳内，所述气流通道形成于所述喷嘴内。In some embodiments, the liquid storage atomization assembly includes a liquid storage shell and a nozzle at least partially housed in the liquid storage shell, the liquid storage cavity is formed in the liquid storage shell, and the air flow channel is formed in the liquid storage shell. inside the nozzle.
在一些实施例中，所述储液壳还形成有将所述储液腔与外界相连通的换气通道。In some embodiments, the liquid storage shell is also formed with a ventilation channel that communicates the liquid storage chamber with the outside world.
在一些实施例中，所述储液壳包括相互配合的储液主体和储液座，所述储液腔形成于所述储液主体内，所述换气通道包括形成于所述储液座外表面的换气槽。In some embodiments, the liquid storage shell includes a liquid storage body and a liquid storage seat that cooperate with each other, the liquid storage chamber is formed in the liquid storage body, and the ventilation channel includes a liquid storage body formed in the liquid storage seat. Ventilation slots on the outer surface.
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。The present invention also provides an electronic atomization device, including the liquid storage atomization assembly as described in any one of the above.
实施本发明至少具有以下有益效果：本发明通过阻力供液通道来控制储液腔供液至气流通道的流量，可按照流量需求匹配来设计阻力供液通道的尺寸和形状，保证储液腔供液至气流通道的流量达到设计值。The implementation of the present invention at least has the following beneficial effects: the present invention controls the flow rate of liquid supply from the liquid storage chamber to the air flow channel through the resistance liquid supply channel, and can design the size and shape of the resistance liquid supply channel according to the flow demand matching to ensure the supply of liquid to the liquid storage cavity. The flow rate from liquid to air flow channel reaches the design value.
附图说明Description of the drawings
下面将结合附图及实施例对本发明作进一步说明，附图中：The present invention will be further described below in conjunction with the accompanying drawings and examples. In the accompanying drawings:
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；Figure 1 is a schematic three-dimensional structural diagram of an electronic atomization device in some embodiments of the present invention;
图2是图1所示电子雾化装置的纵向剖面结构示意图；Figure 2 is a schematic longitudinal cross-sectional structural diagram of the electronic atomization device shown in Figure 1;
图3是图2中储液雾化组件的纵向剖视图；Figure 3 is a longitudinal sectional view of the liquid storage atomization assembly in Figure 2;
图4示出了在停止抽吸时液态基质在进液通道内的受力情况；Figure 4 shows the stress situation of the liquid matrix in the liquid inlet channel when suction is stopped;
图5是图3所示储液雾化组件的另一角度的纵向剖视图；Figure 5 is a longitudinal cross-sectional view of the liquid storage atomization assembly shown in Figure 3 from another angle;
图6是图3所示储液雾化组件的分解结构示意图；Figure 6 is a schematic diagram of the exploded structure of the liquid storage atomization assembly shown in Figure 3;
图7是图3中喷嘴的纵向剖面结构示意图；Figure 7 is a schematic structural diagram of the longitudinal section of the nozzle in Figure 3;
图8是图7所示喷嘴的尺寸标注图；Figure 8 is a dimensioned diagram of the nozzle shown in Figure 7;
图9是本发明第一替代方案中喷嘴的纵向剖面结构示意图；Figure 9 is a schematic structural diagram of the longitudinal section of the nozzle in the first alternative of the present invention;
图10是本发明第二替代方案中喷嘴的纵向剖面结构示意图。Figure 10 is a schematic structural diagram of a longitudinal section of the nozzle in the second alternative of the present invention.
实施方式Implementation
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。In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail 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 invention. However, the present invention can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
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。In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate an orientation or position. The relationship is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present invention is customarily placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply the device or component referred to. Must have a specific orientation, be constructed and operate in a specific orientation and are therefore not to be construed as limitations of the invention.
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。In addition, the terms “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. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
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。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 restrictions. 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.
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。In the present invention, unless otherwise expressly stated and limited, 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. Furthermore, 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.
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。Figures 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. In this application, In embodiments, 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.
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。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 .
储液雾化组件60包括储液壳61以及至少部分收容于储液壳61中的喷嘴62。其中，储液壳61内形成有用于存储液态基质的储液腔610，喷嘴62内形成有气流通道622，储液雾化组件60内还形成有连通储液腔610和气流通道622的阻力供液通道611，以使储液腔610内的液态基质能够经由阻力供液通道611流到气流通道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。从阻力供液通道611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。The liquid storage atomization assembly 60 includes a liquid storage case 61 and a nozzle 62 at least partially received in the liquid storage case 61 . Among them, a liquid storage chamber 610 for storing liquid substrate is formed in the liquid storage shell 61, an air flow channel 622 is formed in the nozzle 62, and a resistance supply connecting the liquid storage cavity 610 and the air flow channel 622 is also formed in the liquid storage atomization assembly 60. Liquid channel 611, so that the liquid matrix in the liquid storage chamber 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 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 resistance liquid supply channel 611 can be atomized by the high-speed air flow flowing in the air flow channel 622 to form fine liquid particles.
阻力供液通道611包括与气流通道622相连通的供液末段621以及连通供液末段621和储液腔610的主体段612。该供液末段621可以为毛细通道，即液态基质在供液末段621内能够产生毛细力。在一些实施例中，供液末段621的截面积可小于0.08mm²。The resistance liquid supply channel 611 includes a liquid supply end section 621 connected with the air flow channel 622 and a main body section 612 connected with the liquid supply end section 621 and the liquid storage chamber 610 . The final liquid supply section 621 can be a capillary channel, that is, the liquid matrix can generate capillary force in the final liquid supply section 621 . In some embodiments, the cross-sectional area of the liquid supply end section 621 may be less than 0.08mm².
由于在抽吸结束后，气源40停止工作，由高速气流在阻力供液通道611内产生的负压消失，阻力供液通道611内的液态基质向喷嘴62方向流动的动力消失，而储液腔610内存在负压，该储液腔610内的负压会回吸供液末段621内的液态基质，从而造成下一次抽吸时供液不及时。因此，通过将阻力供液通道611靠近气流通道622的供液末段621设计为毛细通道，并保证供液末段621具有一套关键尺寸（例如，通道截面积和通道长度），利用供液末段621内的毛细力来减少回流，以实现即起即停的稳定供液，防止气源40停止工作时液态基质回流至储液腔610而造成下一次抽吸时供液延迟。Since the air source 40 stops working after the suction is completed, the negative pressure generated by the high-speed air flow in the resistance liquid supply channel 611 disappears, and the power for the liquid matrix in the resistance liquid supply channel 611 to flow toward the nozzle 62 disappears, while the liquid storage There is a negative pressure in the chamber 610, and the negative pressure in the liquid storage chamber 610 will suck back the liquid matrix in the final liquid supply section 621, causing the liquid supply to be delayed during the next suction. Therefore, by designing the liquid supply end section 621 of the resistance liquid supply channel 611 close to the air flow channel 622 as a capillary channel, and ensuring that the liquid supply end section 621 has a set of critical dimensions (for example, channel cross-sectional area and channel length), the liquid supply can be utilized The capillary force in the final section 621 reduces backflow to achieve a stable liquid supply that starts and stops, and prevents the liquid substrate from flowing back to the liquid storage chamber 610 when the gas source 40 stops working, causing a delay in liquid supply during the next suction.
图4示出了在停止抽吸、气源40停止工作后，液态基质200在供液末段621内的受力情况。气源40停止工作后，供液末段621内的液态基质向喷嘴62方向流动的动力消失，供液末段621内的液态基质200在气液交界面201上的受力情况以及液面运动情况为：Figure 4 shows the stress situation of the liquid matrix 200 in the final liquid supply section 621 after the suction is stopped and the air source 40 stops working. After the air source 40 stops working, the power of the liquid substrate in the final liquid supply section 621 to flow toward the nozzle 62 disappears. The force on the liquid substrate 200 in the final liquid supply section 621 on the gas-liquid interface 201 and the movement of the liquid surface The situation is:
若ΔP 毛=ΔP，则液面经过短暂的向储液腔610方向运动后停止，在下一次气源40启动时有短时延迟； If ΔP gross = ΔP, then the liquid level will stop after a short movement in the direction of the liquid storage chamber 610, and there will be a short delay when the air source 40 is started next time;
若ΔP 毛<ΔP，则液面会持续向储液腔610方向运动，直到有足够的液态基质回流到储液腔610，使得ΔP因储液腔610液面回升而降低至与ΔP 毛平衡，液面运动才会停止，此时会在阻力供液通道611内形成相对很大的空腔，造成在下一次气源40启动时会有较长时间延迟； If ΔP gross < ΔP, the liquid level will continue to move toward the liquid storage chamber 610 until enough liquid matrix flows back to the liquid storage chamber 610, so that ΔP is reduced to balance with ΔP gross due to the rise of the liquid level in the liquid storage chamber 610. The liquid level movement will stop, and a relatively large cavity will be formed in the resistance liquid supply channel 611 at this time, resulting in a long delay when the air source 40 is started next time;
若ΔP 毛>ΔP，则液面不会回流，可在下一次气源40启动时即时雾化。 If ΔP gross > ΔP, the liquid level will not flow back and can be atomized immediately when the air source 40 is started next time.
其中，ΔP=储液腔610内的负压-储液腔610内液态基质的重力，ΔP 毛=供液末段621内的毛细力。 Among them, ΔP = negative pressure in the liquid storage chamber 610 - gravity of the liquid matrix in the liquid storage chamber 610, ΔP = capillary force in the final liquid supply section 621.
在一些实施例中，供液末段621的截面积为0.07mm²（或孔径0.3mm），通道长度≥2mm，气源40停止工作时供液末段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，供液末段621的截面积可以为0.05mm²，通道长度≥1mm，也可实现即起即停的稳定供液。在一些实施例中，供液末段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，供液末段621的截面积越小，需要达到即时启动的效果所需的供液末段621的通道长度越小。In some embodiments, the cross-sectional area of the final liquid supply section 621 is 0.07mm² (or aperture 0.3mm), and the channel length is ≥ 2mm. When the air source 40 stops working, the liquid matrix in the final liquid supply section 621 will not be affected by the liquid storage chamber. The negative pressure in 610 flows back to the liquid storage chamber 610, which can achieve the effect of instant start. In other embodiments, the cross-sectional area of the liquid supply end section 621 can be 0.05mm², and the channel length is ≥1mm, which can also achieve stable liquid supply that starts and stops. In some embodiments, the hydraulic diameter of the final liquid supply section 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 final liquid supply section 621 is, the smaller the channel length of the final liquid supply section 621 is required to achieve the effect of instant start.
此外，再如图3及图5-8所示，阻力供液通道611还可用于控制供液至气流通道622的流量，实现气流通道622的定量供液，保证供液至气流通道622的流量达到设计值。通常，可按照流量需求匹配设计阻力供液通道611的尺寸，即在设计流量下阻力供液通道611能产生匹配供液动力的阻力。具体地，气流通道622内产生的负压为供液动力，而供液阻力则包括阻力供液通道611的沿程阻力以及储液腔610内的负压。通过计算设计流量下阻力供液通道611所需的沿程阻力，设计阻力供液通道611的具体直径与长度。In addition, as shown in Figures 3 and 5-8, the resistance liquid supply channel 611 can also be used to control the flow rate of liquid supply to the air flow channel 622, to achieve quantitative liquid supply to the air flow channel 622, and to ensure the flow rate of liquid supply to the air flow channel 622. reach the design value. Generally, the size of the designed resistance liquid supply channel 611 can be matched according to the flow demand, that is, the resistance liquid supply channel 611 can generate resistance that matches the liquid supply power under the design flow rate. Specifically, the negative pressure generated in the air flow channel 622 is the liquid supply power, and the liquid supply resistance includes the resistance along the liquid supply channel 611 and the negative pressure in the liquid storage chamber 610 . By calculating the resistance required along the resistance liquid supply channel 611 under the design flow rate, the specific diameter and length of the resistance liquid supply channel 611 are designed.
通常来说，液态基质的粘度越大，则液态基质在阻力供液通道611中流通时的阻力越大；阻力供液通道611的长度越越长，则阻力供液通道611内的阻力越大；阻力供液通道611的截面积越大，阻力供液通道611内的阻力越小；阻力供液通道611的曲折程度越多，阻力供液通道611内的阻力越大。在一些实施例中，液态基质的粘度为20cp~250cp；阻力供液通道611的整体长度为6mm~15mm。供液末段621、主体段612均为沿横向延伸的直线形通道，且供液末段621、主体段612的中轴线重合。主体段612为弱毛细力通道，即液态基质在主体段612内能够产生弱毛细力。主体段612的截面积大于供液末段621的截面积，在一些实施例中，主体段612的截面积范围可以为0.09 mm²~0.16mm²。在其他实施例中，主体段612也可以为非直线形延伸的通道，例如S形或方波形等。Generally speaking, the greater the viscosity of the liquid matrix, the greater the resistance of the liquid matrix when flowing in the resistance liquid supply channel 611; the longer the length of the resistance liquid supply channel 611, the greater the resistance in the resistance liquid supply channel 611. ; The larger the cross-sectional area of the resistance liquid supply channel 611, the smaller the resistance in the resistance liquid supply channel 611; the more tortuous the resistance liquid supply channel 611 is, the greater the resistance in the resistance liquid supply channel 611. In some embodiments, the viscosity of the liquid matrix is 20cp~250cp; the overall length of the resistance liquid supply channel 611 is 6mm~15mm. The final liquid supply section 621 and the main body section 612 are both linear channels extending laterally, and the central axes of the final liquid supply section 621 and the main body section 612 coincide with each other. The main body section 612 is a weak capillary force channel, that is, the liquid matrix can generate weak capillary force in the main body section 612 . The cross-sectional area of the main body section 612 is larger than the cross-sectional area of the final liquid supply section 621. In some embodiments, the cross-sectional area of the main body section 612 can range from 0.09 mm² to 0.16 mm². In other embodiments, the main body segment 612 may also be a non-linear extending channel, such as an S-shape or a square wave shape.
在本实施例中，供液末段621形成于喷嘴62内，主体段612形成于储液壳61内。喷嘴62大致具有圆柱状外形，其可沿纵向穿设于储液壳61中并可与储液壳61同轴设置。气流通道622沿纵向贯穿喷嘴62并可与喷嘴62同轴设置。供液末段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，供液末段621的延伸方向与气流通道622的延伸方向垂直。可以理解地，在其他实施例中，喷嘴62的外形也可呈椭圆形或方形等其他形状。在另一些实施例中，供液末段621也可部分形成于喷嘴62内，部分形成于储液壳61内；或者，也可以是主体段612部分形成于喷嘴62内，部分形成于储液壳61内。In this embodiment, the final liquid supply section 621 is formed in the nozzle 62 , and the main section 612 is formed in the liquid storage shell 61 . The nozzle 62 generally has a cylindrical shape, which can be longitudinally inserted into the liquid storage case 61 and can be disposed coaxially with the liquid storage case 61 . The airflow channel 622 runs through the nozzle 62 longitudinally and may be coaxially disposed with the nozzle 62 . The liquid supply end section 621 extends laterally inward from one side of the nozzle 62 to communicate with the air flow channel 622 , and the extension direction of the liquid supply end section 621 is perpendicular to the extension direction of the air flow channel 622 . It is understood that in other embodiments, the shape of the nozzle 62 may also be in other shapes such as an ellipse or a square. In other embodiments, the liquid supply end section 621 can also be partially formed in the nozzle 62 and partially formed in the liquid storage shell 61; or, the main body section 612 can also be partially formed in the nozzle 62 and partially formed in the liquid storage shell. inside the shell 61.
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，并通过供液末段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供液末段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。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 final liquid supply section 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 generates a negative pressure in the final liquid supply section 621 according to Bernoulli's equation. The 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 a liquid film is formed 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. The particle size distribution of the liquid particles formed after atomization in the atomization chamber 625 can reach the range of SMD=30 μm. Among them, SMD = total volume of liquid particles/total surface area of liquid particles, which represents the average particle size of liquid particles.
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为同心圆环状，雾化面6250的内壁面界定出雾化口6251。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。The atomization chamber 625 is a straight cylindrical channel, and its hole wall is perpendicular to the atomization surface 6250. In this embodiment, the atomization chamber 625 is a right cylindrical channel, the atomization surface 6250 is in the shape of concentric rings, and the inner wall surface of the atomization surface 6250 defines the atomization port 6251. In other embodiments, 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.
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D、雾化腔625的孔径W1、雾化腔625的长度H可根据需要设置合适的尺寸。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. In some embodiments, the aperture D of the atomization port 6251, the aperture W1 of the atomization chamber 625, and the length H of the atomization chamber 625 can be set to appropriate sizes as needed.
具体地，雾化口6251的孔径D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D的范围可以为0.2mm~0.4mm ，优选为0.22mm~0.35mm。Specifically, the aperture D of the atomization port 6251 is related to the airflow speed (m/s) coming out of the atomization port 6251, which can affect the particle size of the generated liquid particles. In some embodiments, the aperture D of the atomization port 6251 may range from 0.2mm to 0.4mm, preferably from 0.22mm to 0.35mm.
雾化腔625的孔径W1会影响雾化腔625中的气流流速大小，从而影响雾化腔625、供液末段621内的负压大小。该负压可使液态基质从供液末段621吸至雾化腔625。在一些实施例中，雾化腔625的孔径W1的范围可以为0.7mm~1.3mm。雾化腔625的长度H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D或雾化腔625的孔径W1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。The aperture W1 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 final liquid supply section 621. This negative pressure can cause the liquid substrate to be sucked from the final liquid supply section 621 to the atomization chamber 625 . In some embodiments, the aperture W1 of the atomization chamber 625 may range from 0.7 mm to 1.3 mm. The length H of the atomization chamber 625 may be 0.8mm~3.0mm. It can be understood that in other embodiments, 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 D or the aperture W1 of the atomization chamber 625 is its equivalent diameter respectively. The term "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.
进一步地，在一些实施例中，D的范围为0.22mm~0.35mm，H的范围为1.5mm~3.0mm，W1的范围为0.7mm~1.3mm，该D、H、W1的取值范围能够使喷嘴62在制造工艺上得到优势。Further, in some embodiments, the range of D is 0.22mm~0.35mm, the range of H is 1.5mm~3.0mm, and the range of W1 is 0.7mm~1.3mm. The value ranges of D, H, and W1 can be This gives the nozzle 62 advantages in the manufacturing process.
供液末段621与雾化腔625相连通的一端具有一供液口6210，该供液口6210与雾化面6250之间的距离L是保证液膜形成的关键。在本实施例中，供液口6210与雾化面6250之间的距离L为供液口6210的中心与雾化面6250之间的垂直距离。在一些实施例中，供液口6210与雾化面6250之间的距离L的范围可以为0.3mm~0.8mm，较佳地，L为0.35mm~0.6mm。The end of the liquid supply end section 621 that communicates with the atomization chamber 625 has a liquid supply port 6210. The distance L between the liquid supply port 6210 and the atomization surface 6250 is the key to ensuring the formation of a liquid film. In this embodiment, the distance L between the liquid supply port 6210 and the atomization surface 6250 is the vertical distance between the center of the liquid supply port 6210 and the atomization surface 6250. In some embodiments, the distance L between the liquid supply port 6210 and the atomization surface 6250 may range from 0.3 mm to 0.8 mm. Preferably, L is 0.35 mm to 0.6 mm.
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。具体地，在本实施例中，扩张通道626为沿纵向延伸且孔径由下往上逐渐增大的圆锥形通道。扩张通道626的雾化角α（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。在一些实施例中，扩张通道626的雾化角α可以为30 0~70 0。进一步地，扩张通道626与雾化腔625之间还可采用流线型平滑连接，例如通过倒圆角的方式相切。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。 Further, 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 . Specifically, in this embodiment, the expansion channel 626 is a conical channel that extends longitudinally and has a hole diameter that gradually increases from bottom to top. The atomization angle α 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. In some embodiments, the atomization angle α of the expansion channel 626 may be 30 0 ~70 0 . Furthermore, the expansion channel 626 and the atomization chamber 625 can also be connected in a streamlined and smooth manner, for example, through rounding. In other embodiments, the expansion channel 626 may also have an elliptical cone shape, a pyramid shape, or other shapes.
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。In some embodiments, 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 . In this embodiment, 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.
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。Further, 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. In other embodiments, 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.
储液壳61可包括相互配合的储液主体613和储液座614。在本实施例中，储液腔610、主体段612均形成于储液主体613内。具体地，储液主体613的底面上凹形成圆环状的储液腔610，储液腔610靠近喷嘴62的一侧腔壁面沿横向向喷嘴62延伸形成主体段612。可以理解地，在其他实施例中，储液腔610和/或主体段612也可形成于储液座614内，或者也可部分形成于储液主体613内、部分形成于储液座614内。The liquid storage shell 61 may include a liquid storage body 613 and a liquid storage base 614 that cooperate with each other. In this embodiment, the liquid storage chamber 610 and the main body section 612 are both formed in the liquid storage main body 613 . Specifically, the bottom surface of the liquid storage body 613 is concave to form an annular liquid storage cavity 610 , and the side wall of the liquid storage cavity 610 close to the nozzle 62 extends transversely toward the nozzle 62 to form a main body section 612 . It can be understood that in other embodiments, the liquid storage chamber 610 and/or the main body section 612 can also be formed in the liquid storage seat 614, or can also be partially formed in the liquid storage main body 613 and partially in the liquid storage seat 614. .
进一步地，储液壳61上还可形成有与储液腔610相连通的注液通道615，以在储液腔610内的液态基质用完后能够再次向储液腔610内注液。在本实施例中，注液通道615形成于储液主体613内且沿纵向延伸，注液通道615的下端与储液腔610相连通。Furthermore, a liquid injection channel 615 connected to the liquid storage chamber 610 may be formed on the liquid storage shell 61 so that liquid can be injected into the liquid storage chamber 610 again after the liquid matrix in the liquid storage chamber 610 is used up. In this embodiment, the liquid injection channel 615 is formed in the liquid storage body 613 and extends longitudinally, and the lower end of the liquid injection channel 615 is connected with the liquid storage chamber 610 .
储液壳61内还形成有收容孔6136以及与收容孔6136相连通的容腔6130，该收容孔6136和容腔6130可沿纵向延伸并可与储液壳61同轴设置。收容孔6136用于收容喷嘴62，其可由储液壳61的下端面沿纵向向上延伸。该容腔6130可由储液壳61的上端面沿纵向向下延伸至与收容孔6136相连通。容腔6130的横截面积可大于收容孔6136的横截面积，使得容腔6130靠近收容孔6136的一端形成有储液面6131。储液面6131上还可形成有若干个具有毛细作用力的储液槽6132，该若干个储液槽6132能够收集并存储一定量的冷凝液，防止储液面6131上积蓄的冷凝液回流至喷嘴62，从而堵塞喷嘴62内的气道。在一些实施例中，储液槽6132的槽宽可小于等于0.6mm。喷嘴62的上端面可高出其周圈的储液面6131，避免储液面6131的冷凝液进入喷嘴62堵塞气道。The liquid storage shell 61 is also formed with a receiving hole 6136 and a cavity 6130 connected with the receiving hole 6136. The receiving hole 6136 and the cavity 6130 can extend longitudinally and can be arranged coaxially with the liquid storage shell 61. The receiving hole 6136 is used to receive the nozzle 62, which can extend upward longitudinally from the lower end surface of the liquid storage case 61. The cavity 6130 can extend longitudinally downward from the upper end surface of the liquid storage shell 61 to communicate with the receiving hole 6136 . The cross-sectional area of the cavity 6130 can be larger than the cross-sectional area of the receiving hole 6136, so that a liquid storage surface 6131 is formed at one end of the cavity 6130 close to the receiving hole 6136. Several liquid storage tanks 6132 with capillary force can also be formed on the liquid storage surface 6131. The plurality of liquid storage tanks 6132 can collect and store a certain amount of condensate to prevent the condensate accumulated on the liquid storage surface 6131 from flowing back to the liquid storage surface 6131. Nozzle 62, thereby blocking the air passage in nozzle 62. In some embodiments, the groove width of the liquid reservoir 6132 may be less than or equal to 0.6 mm. The upper end surface of the nozzle 62 can be higher than the liquid storage surface 6131 of its circumference to prevent condensate from the liquid storage surface 6131 from entering the nozzle 62 and blocking the air passage.
在本实施例中，该若干个储液槽6132可包括若干个第一储液槽6133以及若干个环状的第二储液槽6134。每一第一储液槽6133均可沿储液面6131的径向延伸，第一储液槽6133远离储液面6131中心的一端可与最外圈的一个第二储液槽6134相连通，第一储液槽6133靠近储液面6131中心的一端可与最内圈的一个第二储液槽6134相连通。进一步地，储液面6131还可设计为凸起形状，例如，其可以为球形弧面或锥形面，储液面6131的高度由中心向***逐渐降低，有利于储液面6131中心处附近的冷凝液向***流动扩散，避免储液面6131中心处附近的冷凝液未经雾化而直接被吹走。在另一些实施例中，储液面6131也可向喷嘴62倾斜，即储液面6131的高度由***向中心逐渐降低，喷嘴62的上端面也可低于或齐平其周圈的储液面6131，使得储液面6131上积蓄的冷凝液能够流回至喷嘴62重新雾化。In this embodiment, the plurality of liquid storage tanks 6132 may include several first liquid storage tanks 6133 and several annular second liquid storage tanks 6134. Each first liquid storage tank 6133 can extend along the radial direction of the liquid storage surface 6131, and one end of the first liquid storage tank 6133 away from the center of the liquid storage surface 6131 can be connected with a second liquid storage tank 6134 in the outermost ring. One end of the first liquid storage tank 6133 close to the center of the liquid storage surface 6131 can be connected with a second liquid storage tank 6134 in the innermost ring. Furthermore, the liquid storage surface 6131 can also be designed in a convex shape, for example, it can be a spherical arc surface or a conical surface. The height of the liquid storage surface 6131 gradually decreases from the center to the periphery, which is beneficial to the vicinity of the center of the liquid storage surface 6131. The condensate flows and spreads to the periphery to prevent the condensate near the center of the liquid storage surface from being blown away directly without being atomized. In other embodiments, the liquid storage surface 6131 can also be inclined toward the nozzle 62, that is, the height of the liquid storage surface 6131 gradually decreases from the periphery to the center, and the upper end surface of the nozzle 62 can also be lower than or flush with the liquid storage surface around it. surface 6131, so that the condensate accumulated on the liquid storage surface 6131 can flow back to the nozzle 62 for re-atomization.
进一步地，储液壳61内还可形成有将该若干个储液槽6132与雾化腔625相连通的导液通道6135，以使雾化腔625内的负压能够将储液槽6132内存储的冷凝液回吸至雾化腔625再次雾化。相应地，喷嘴62内还形成有将导液通道6135与雾化腔625相连通的回吸通道624。导液通道6135、回吸通道624也可以为毛细通道，导液通道6135、回吸通道624的孔径或当量直径可小于等于0.4mm，或者，导液通道6135、回吸通道624的截面积小于等于0.126mm²。回吸通道624与雾化腔625相连通的一端具有一回吸口6240，该回吸口6240的中心与雾化面6250之间的垂直距离可以为0.3mm~0.8mm。进一步地，在本实施例中，回吸通道624、供液末段621相对于喷嘴62的中轴线呈旋转对称设置，从而在组装喷嘴62时可无需考虑安装方向。Furthermore, a liquid conduction channel 6135 connecting the plurality of liquid storage tanks 6132 with the atomization chamber 625 can also be formed in the liquid storage shell 61, so that the negative pressure in the atomization cavity 625 can push the liquid in the liquid storage tank 6132 The stored condensate is sucked back into the atomization chamber 625 and atomized again. Correspondingly, a back-suction channel 624 is also formed in the nozzle 62 to connect the liquid guide channel 6135 with the atomization chamber 625 . The liquid guide channel 6135 and the back-suction channel 624 can also be capillary channels. The aperture or equivalent diameter of the liquid guide channel 6135 and the back-suction channel 624 can be less than or equal to 0.4 mm. Alternatively, the cross-sectional area of the liquid guide channel 6135 and the back-suction channel 624 can be less than or equal to 0.4 mm. Equal to 0.126mm². One end of the back suction channel 624 connected to the atomization chamber 625 has a back suction port 6240, and the vertical distance between the center of the back suction port 6240 and the atomization surface 6250 can be 0.3mm~0.8mm. Furthermore, in this embodiment, the suction channel 624 and the final liquid supply section 621 are arranged rotationally symmetrically with respect to the central axis of the nozzle 62, so that the installation direction does not need to be considered when assembling the nozzle 62.
此外，储液壳61还可形成有将储液腔610与外界相连通的换气通道6140，该换气通道6140可用于恢复储液腔610内的压力，利用喷嘴62的负压区和换气通道6140相配合，实现向喷嘴62的自动稳定供液，解决因储液腔610内负压过大而不能稳定供液的问题。在抽吸过程中，储液腔610内液态基质减少会带来气压降低，降低至极限换气负压会由换气通道6140换气泡进入储液腔610，恢复储液腔610负压。通常，可控制储液腔610的负压范围为-200Pa ~ -700Pa。可以理解地，在其他实施例中，也可采用其他自动或非自动的供液方式实现对喷嘴62的定量稳定供液，例如，可通过采用小型供液泵（例如隔膜泵或蠕动泵等）对储液腔610进行加压，保持维持供液的稳定性，实现对喷嘴62的定量稳定供液；或者，也可将储液腔610的腔壁设置成柔性且内部没有空气的腔壁，来解决储液腔610负压过大不能供液的问题。In addition, the liquid storage shell 61 can also be formed with a ventilation channel 6140 that connects the liquid storage chamber 610 with the outside world. The ventilation channel 6140 can be used to restore the pressure in the liquid storage chamber 610 by utilizing the negative pressure area of the nozzle 62 and the ventilation channel 6140 . The air channel 6140 cooperates to realize automatic and stable liquid supply to the nozzle 62, thereby solving the problem of unable to stably supply liquid due to excessive negative pressure in the liquid storage chamber 610. During the suction process, the reduction of the liquid matrix in the liquid storage chamber 610 will cause the air pressure to decrease. When the negative ventilation pressure reaches the limit, air bubbles will enter the liquid storage chamber 610 through the ventilation channel 6140, and the negative pressure of the liquid storage chamber 610 will be restored. Generally, the controllable negative pressure range of the liquid storage chamber 610 is -200Pa ~ -700Pa. It is understood that in other embodiments, other automatic or non-automatic liquid supply methods can also be used to achieve quantitative and stable liquid supply to the nozzle 62 , for example, a small liquid supply pump (such as a diaphragm pump or a peristaltic pump, etc.) can be used. The liquid storage chamber 610 is pressurized to maintain the stability of the liquid supply and realize a quantitative and stable liquid supply to the nozzle 62; alternatively, the wall of the liquid storage chamber 610 can also be set to be flexible and have no air inside. To solve the problem that the negative pressure of the liquid storage chamber 610 is too large and cannot supply liquid.
换气通道6140可包括形成于储液壳61外表面的换气槽6142以及形成于储液壳61内的换气孔6141。该换气孔6141分别连通储液腔610和换气槽6142，并经由换气槽6142与外界相连通。在本实施例中，该换气槽6142可采用直液式换气结构并可形成于储液座614的外表面。具体地，该换气槽6142可包括若干个旋转槽6143以及连通该若干个旋转槽6143的若干个连通槽6144。每一旋转槽6143均可呈环形并沿储液座614的周向延伸，每一旋转槽6143的截面积范围可以为0.04mm²~0.16mm²，该若干个旋转槽6143的总长度可以为3mm~12mm。旋转槽6143可以有多个，该多个旋转槽6143可沿储液座614的轴向均匀间隔排布。每一连通槽6144均沿储液座614的轴向延伸，每一连通槽6144的上端与位于最上方的一个旋转槽6143相连通，下端与位于最下方的一个旋转槽6143相连通。连通槽6144也可以有多个，多个连通槽6144可沿储液座614的周向均匀间隔排布。The ventilation channel 6140 may include a ventilation groove 6142 formed on the outer surface of the liquid storage case 61 and a ventilation hole 6141 formed in the liquid storage case 61 . The ventilation holes 6141 are respectively connected to the liquid storage chamber 610 and the ventilation groove 6142, and are connected to the outside world through the ventilation groove 6142. In this embodiment, the ventilation groove 6142 can adopt a direct liquid ventilation structure and can be formed on the outer surface of the liquid reservoir 614 . Specifically, the ventilation groove 6142 may include a plurality of rotation grooves 6143 and a plurality of communication grooves 6144 connecting the plurality of rotation grooves 6143. Each rotating groove 6143 can be annular and extend along the circumferential direction of the liquid reservoir 614. The cross-sectional area of each rotating groove 6143 can range from 0.04mm² to 0.16mm², and the total length of the plurality of rotating grooves 6143 can range from 3mm to 3mm. 12mm. There may be a plurality of rotating grooves 6143, and the plurality of rotating grooves 6143 may be evenly spaced along the axial direction of the liquid reservoir 614. Each communication groove 6144 extends along the axial direction of the liquid reservoir 614. The upper end of each communication groove 6144 is connected to the uppermost rotation groove 6143, and the lower end is connected to the lowermost rotation groove 6143. There may also be multiple communication grooves 6144 , and the plurality of communication grooves 6144 may be evenly spaced along the circumferential direction of the liquid reservoir 614 .
在一些实施例中，该储液雾化组件60还可包括固定盖63。固定盖63呈上端开口的筒状，固定件64套设于储液主体613和储液座614外并可与储液主体613相互扣合固定，以将储液主体613和储液座614相互固定。进一步地，固定盖63可以为金属材质，金属材质在温度变化时而产生的热胀冷缩形变较小，使得储液雾化组件60内各个部件之间的连接固定更加稳定可靠。In some embodiments, the liquid storage atomization assembly 60 may further include a fixed cover 63 . The fixed cover 63 is in the shape of a cylinder with an open upper end. The fixing member 64 is sleeved on the liquid storage body 613 and the liquid storage seat 614 and can be interlocked and fixed with the liquid storage body 613 to connect the liquid storage body 613 and the liquid storage seat 614 to each other. fixed. Furthermore, the fixed cover 63 can be made of metal. The thermal expansion and contraction deformation of the metal material when the temperature changes is small, making the connection and fixation between the various components in the liquid storage atomization assembly 60 more stable and reliable.
固定盖63的侧壁上还可开设有通气口630，储液座614的外表面还形成有将该若干个旋转槽6143与通气口630相连通的通气槽6145。具体地，通气口630可开设于固定盖63的侧壁底部，通气槽6145可由储液座614的侧壁底面沿纵向向上延伸至与位于最下方的一个旋转槽6143相连通。A vent 630 can also be provided on the side wall of the fixed cover 63 , and a vent groove 6145 is formed on the outer surface of the liquid storage seat 614 to connect the plurality of rotation grooves 6143 with the vent 630 . Specifically, the vent 630 can be opened at the bottom of the side wall of the fixed cover 63 , and the vent groove 6145 can extend longitudinally upward from the bottom surface of the side wall of the liquid storage seat 614 to communicate with the bottom rotation groove 6143 .
换气孔6141可由其中一个旋转槽6143沿横向向内延伸至与储液腔610相连通。在本实施例中，换气孔6141由位于最上方的一个旋转槽6143沿横向向内延伸至与储液腔610相连通。The ventilation hole 6141 can extend laterally inward from one of the rotating grooves 6143 to communicate with the liquid storage chamber 610 . In this embodiment, the ventilation hole 6141 extends laterally inward from the uppermost rotating groove 6143 to communicate with the liquid storage chamber 610 .
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。Further, as shown in FIG. 2 , 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.
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。In this embodiment, 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. At a lower heating atomization temperature, 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. In addition, 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.
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。It can be understood that in other embodiments, 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. In other embodiments, 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.
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还可包括设置于外壳10中并与控制模块20电连接的气流感应元件50。该气流感应元件50可收容于支架组件11的底部，其能够感应用户抽吸时的气流变化，其通常可以为负压传感器，例如咪头。用户抽吸动作制造负压，气流感应元件50感应负压而产生抽吸信号，该抽吸信号可传递至控制模块20以控制气源40和/或发热件80的工作。Furthermore, 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 . Further, the electronic atomization device 100 may further include an airflow sensing element 50 disposed in the housing 10 and electrically connected to the control module 20 . The airflow sensing element 50 can be accommodated at the bottom of the bracket assembly 11 and can sense changes in the airflow when the user inhales. It can usually be a negative pressure sensor, such as a microphone. The user's suction action creates negative pressure, and the airflow sensing element 50 senses the negative pressure to generate a suction signal. The suction signal can be transmitted to the control module 20 to control the operation of the air source 40 and/or the heating element 80 .
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。Furthermore, the electronic atomization device 100 may further include a dust cover 90 detachably disposed on the upper end of the housing 10 . When the electronic atomization device 100 is not needed, 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 .
图9示出了本发明第一替代方案中的喷嘴62，其与上述实施例的主要区别在于，本实施例中的喷嘴62的雾化面6250上还设置有锁液槽6252，该锁液槽6252内能够产生毛细力，利用毛细力摊平液膜，使喷嘴62即使处于倾斜状态时液膜仍能在雾化口6251附近均匀分布并雾化，降低重力对液膜分布的影响。Figure 9 shows the nozzle 62 in the first alternative of the present invention. The main difference from the above embodiment is that the atomization surface 6250 of the nozzle 62 in this embodiment is also provided with a liquid lock groove 6252. Capillary force can be generated in the groove 6252, and the capillary force can be used to flatten the liquid film, so that even when the nozzle 62 is in a tilted state, the liquid film can still be evenly distributed and atomized near the atomization port 6251, thereby reducing the influence of gravity on the distribution of the liquid film.
具体地，在本实施例中，锁液槽6252呈环形并可与雾化口6251同轴设置，其可由雾化面6250沿纵向向下凹陷形成，即沿垂直于雾化面6250的方向向下凹陷形成。锁液槽6252的内径大于雾化口6251的孔径，锁液槽6252的外径小于雾化腔625的孔径。Specifically, in this embodiment, the liquid lock groove 6252 is annular and can be disposed coaxially with the atomization port 6251. It can be formed by the atomization surface 6250 being recessed longitudinally downward, that is, along the direction perpendicular to the atomization surface 6250. A lower depression forms. The inner diameter of the liquid locking groove 6252 is larger than the aperture of the atomization port 6251, and the outer diameter of the liquid locking groove 6252 is smaller than the aperture of the atomization chamber 625.
此外，在本实施例中，喷嘴62内形成有供液末段621和供液前段624，该供液末段621与雾化腔625相连通，该供液前段624与供液末段621远离雾化腔625的一端相连通。该供液末段621的结构与上述实施例中的相关描述类似，在此不再赘述。该供液前段624为弱毛细力通道，其构成上述实施例中主体段612的一部分。In addition, in this embodiment, the nozzle 62 is formed with a final liquid supply section 621 and a front liquid supply section 624. The final liquid supply section 621 is connected to the atomization chamber 625, and the front liquid supply section 624 is far away from the final liquid supply section 621. One end of the atomization chamber 625 is connected. The structure of the final liquid supply section 621 is similar to the relevant description in the above embodiment, and will not be described again here. The liquid supply front section 624 is a weak capillary force channel, which forms a part of the main body section 612 in the above embodiment.
图10示出了本发明第二替代方案中的喷嘴62，其与上述第一替代方案的主要区别在于，本实施例中的锁液槽6252由雾化面6250的外缘向上、向外凹陷形成，且该锁液槽6252呈周向非封闭的C形环状。具体地，该锁液槽6252可形成于雾化面6250与供液末段621相对的一侧，锁液槽6252的内径与雾化腔625的孔径一致，锁液槽6252的外径大于雾化腔625的孔径。锁液槽6252的弧心角可以为180°~350°。Figure 10 shows the nozzle 62 in the second alternative of the present invention. The main difference from the first alternative is that the liquid lock groove 6252 in this embodiment is recessed upward and outward from the outer edge of the atomization surface 6250. is formed, and the liquid-locking groove 6252 is in the shape of a circumferentially non-closed C-shaped ring. Specifically, the liquid-locking groove 6252 can be formed on the side of the atomization surface 6250 opposite to the liquid supply end section 621. The inner diameter of the liquid-locking groove 6252 is consistent with the aperture of the atomization chamber 625. The outer diameter of the liquid-locking groove 6252 is larger than the atomization chamber 625. The aperture of cavity 625. The arc center angle of the liquid lock tank 6252 can be 180°~350°.
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。It can be understood that the above technical features can be used in any combination without limitation.
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。The above embodiments only express the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention; it should be noted that for those of ordinary skill in the art, Without departing from the concept of the present invention, the above technical features can be freely combined, and several modifications and improvements can be made, which all belong to the protection scope of the present invention; therefore, any equivalent transformations made within the scope of the claims of the present invention and modifications shall fall within the scope of the claims of the present invention.

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）内形成有用于存储液态基质的储液腔（610）、用于流通高速气流的气流通道（622）以及将所述储液腔（610）与所述气流通道（622）相连通的阻力供液通道（611），所述阻力供液通道（611）被配置为用于控制所述储液腔（610）供液至所述气流通道（622）的流量。A liquid storage atomization assembly, characterized in that the liquid storage atomization assembly (60) is formed with a liquid storage cavity (610) for storing a liquid substrate, an airflow channel (622) for circulating high-speed airflow, and a The liquid storage chamber (610) is connected with the resistance liquid supply channel (611) of the air flow channel (622), and the resistance liquid supply channel (611) is configured to control the liquid storage chamber (610) The flow rate of liquid supplied to the air flow channel (622).
  2.  根据权利要求1所述的储液雾化组件，其特征在于，在所述气流通道（622）中流通的高速气流使所述气流通道（622）内产生负压，所述负压能够将所述储液腔（610）中的液态基质吸出至所述气流通道（622），进入到所述气流通道（622）的液态基质受所述气流通道（622）中流通的高速气流作用而雾化。The liquid storage atomization assembly according to claim 1, characterized in that the high-speed airflow circulating in the airflow channel (622) generates a negative pressure in the airflow channel (622), and the negative pressure can The liquid matrix in the liquid storage chamber (610) is sucked out to the airflow channel (622), and the liquid matrix entering the airflow channel (622) is atomized by the high-speed airflow circulating in the airflow channel (622). .
  3.  根据权利要求1所述的储液雾化组件，其特征在于，所述阻力供液通道（611）包括与所述储液腔（610）相连通的主体段（612）以及连通所述主体段（612）和所述气流通道（622）的供液末段（621），所述主体段（612）的截面积大于所述供液末段（621）的截面积。The liquid storage atomization assembly according to claim 1, characterized in that the resistance liquid supply channel (611) includes a main body section (612) connected with the liquid storage chamber (610) and a main body section connected with the liquid storage chamber (610). (612) and the liquid supply end section (621) of the air flow channel (622), the cross-sectional area of the main body section (612) is larger than the cross-sectional area of the liquid supply end section (621).
  4.  根据权利要求3所述的储液雾化组件，其特征在于，所述主体段（612）为弱毛细通道，所述供液末段（621）为毛细通道。The liquid storage atomization assembly according to claim 3, characterized in that the main body section (612) is a weak capillary channel, and the liquid supply end section (621) is a capillary channel.
  5.  根据权利要求3所述的储液雾化组件，其特征在于，所述主体段（612）的截面积范围为0.09 mm²~0.16mm²。The liquid storage atomization assembly according to claim 3, characterized in that the cross-sectional area of the main body section (612) ranges from 0.09 mm² to 0.16 mm².
  6.  根据权利要求3所述的储液雾化组件，其特征在于，所述供液末段（621）的截面积小于0.08mm²。The liquid storage atomization assembly according to claim 3, characterized in that the cross-sectional area of the liquid supply end section (621) is less than 0.08mm².
  7.  根据权利要求3所述的储液雾化组件，其特征在于，所述供液末段（621）的水力直径小于等于0.3mm。The liquid storage atomization assembly according to claim 3, characterized in that the hydraulic diameter of the liquid supply end section (621) is less than or equal to 0.3mm.
  8.  根据权利要求3所述的储液雾化组件，其特征在于，所述主体段（612）为直线形或非直线形通道。The liquid storage atomization assembly according to claim 3, characterized in that the main body section (612) is a linear or non-linear channel.
  9.  根据权利要求3所述的储液雾化组件，其特征在于，所述供液末段（621）为直线形通道，所述供液末段（621）的延伸方向与所述气流通道（622）的延伸方向垂直。The liquid storage atomization assembly according to claim 3, characterized in that the final liquid supply section (621) is a linear channel, and the extension direction of the final liquid supply section (621) is in line with the air flow channel (622). ) extends vertically.
  10.  根据权利要求1所述的储液雾化组件，其特征在于，所述阻力供液通道（611）的延伸长度为6mm~15mm。The liquid storage atomization assembly according to claim 1, characterized in that the extension length of the resistance liquid supply channel (611) is 6mm~15mm.
  11.  根据权利要求1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）和所述阻力供液通道（611）相连通，所述雾化腔（625）靠近所述供气通道（623）的一端端面形成雾化面（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。The liquid storage atomization assembly according to claim 1, characterized in that the air flow channel (622) includes an air supply channel (623) and an atomization chamber (625), and the atomization chamber (625) is connected to the atomization chamber (625) respectively. The air supply channel (623) is connected with the resistance liquid supply channel (611), and an end surface of the atomization chamber (625) close to the air supply channel (623) forms an atomization surface (6250). The atomization surface (6250) is provided with an atomization port (6251) that connects the air supply channel (623) and the atomization chamber (625). The liquid matrix flowing into the atomization chamber (625) can be in the atomization chamber (625). The atomization surface (6250) forms a liquid film, which can be cut by the high-speed airflow to form liquid particles.
  12.  根据权利要求11所述的储液雾化组件，其特征在于，所述雾化面（6250）还设置有能够产生毛细力的锁液槽（6252）。The liquid storage atomization assembly according to claim 11, characterized in that the atomization surface (6250) is also provided with a liquid locking groove (6252) capable of generating capillary force.
  13.  根据权利要求12所述的储液雾化组件，其特征在于，所述雾化口（6251）、所述雾化面（6250）、所述锁液槽（6252）的中轴线均重合。The liquid storage atomization assembly according to claim 12, characterized in that the central axes of the atomization port (6251), the atomization surface (6250), and the liquid locking tank (6252) all coincide.
  14.  根据权利要求11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。The liquid storage atomization assembly according to claim 11, characterized in that the air flow channel (622) also includes an expansion channel (626), and the expansion channel (626) is away from the atomization chamber (625). One end of the air supply channel (623) is connected, and the cross-sectional area of the expansion channel (626) gradually increases from the end close to the atomization chamber (625) to the end far away from the atomization chamber (625). .
  15.  根据权利要求11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。The liquid storage atomization assembly according to claim 11, characterized in that the air supply channel (623) includes an acceleration section (6231) connected with the atomization chamber (625), and the acceleration section (6231) ), the cross-sectional area gradually decreases from the end far away from the atomization chamber (625) to the end close to the atomization chamber (625).
  16.  根据权利要求11所述的储液雾化组件，其特征在于，所述雾化面（6250）设置有锁液槽（6252），所述锁液槽（6252）沿垂直于所述雾化面（6250）的方向向下凹陷形成，或者，所述锁液槽（6252）由所述雾化面（6250）的外缘向上、向外凹陷形成。The liquid storage atomization assembly according to claim 11, characterized in that the atomization surface (6250) is provided with a liquid locking groove (6252), and the liquid locking groove (6252) is perpendicular to the atomization surface. (6250), or the liquid-locking groove (6252) is formed by the outer edge of the atomization surface (6250) being recessed upward and outward.
  17.  根据权利要求1-16任一项所述的储液雾化组件，其特征在于，所述储液雾化组件包括储液壳（61）以及至少部分收容于所述储液壳（61）的喷嘴（62），所述储液腔（610）形成于所述储液壳（61）内，所述气流通道（622）形成于所述喷嘴（62）内。The liquid storage atomization assembly according to any one of claims 1 to 16, characterized in that the liquid storage atomization assembly includes a liquid storage shell (61) and at least part of the liquid storage shell (61). Nozzle (62), the liquid storage chamber (610) is formed in the liquid storage shell (61), and the airflow channel (622) is formed in the nozzle (62).
  18.  根据权利要求17所述的储液雾化组件，其特征在于，所述储液壳（61）还形成有将所述储液腔（610）与外界相连通的换气通道（6140）。The liquid storage atomization assembly according to claim 17, characterized in that the liquid storage shell (61) is also formed with a ventilation channel (6140) that connects the liquid storage chamber (610) with the outside world.
  19.  根据权利要求18所述的储液雾化组件，其特征在于，所述储液壳（61）包括相互配合的储液主体（613）和储液座（614），所述储液腔（610）形成于所述储液主体（613）内，所述换气通道（6140）包括形成于所述储液座（614）外表面的换气槽（6142）。The liquid storage atomization assembly according to claim 18, characterized in that the liquid storage shell (61) includes a liquid storage body (613) and a liquid storage seat (614) that cooperate with each other, and the liquid storage chamber (610) ) is formed in the liquid storage body (613), and the ventilation channel (6140) includes a ventilation groove (6142) formed on the outer surface of the liquid storage seat (614).
  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。An electronic atomization device, characterized by comprising the liquid storage atomization assembly according to any one of claims 1-19.
PCT/CN2023/080925 2022-04-29 2023-03-10 Electronic atomization device, and liquid storage and atomization assembly therefor WO2023207366A1 (en)

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