Electronic atomization device and atomizer

Abstract

The present application relates to electronic atomization device and atomizer, atomizer includes liquid storage cavity, atomization cavity and with the liquid outlet channel of liquid storage cavity communication, the cross-sectional area of the liquid outlet channel gradually reduces to the atomization cavity direction to can form capillary action lock liquid state atomization base setting. The atomizer by the cross-sectional area of the liquid outlet channel gradually reduces to the atomization cavity direction to can form capillary action lock liquid state atomization base, thereby can prevent liquid state atomization base backflow and prevent liquid state atomization base overflow to atomization cavity, and then can play timely liquid in the next time atomization, improve atomization efficiency.

Description

Technical Field

[0001] This invention relates to the field of atomization, and more specifically, to an electronic atomizing device and atomizer. Background Technology

[0002] Existing electronic atomization devices mainly use porous media such as porous ceramics or porous cotton combined with heating elements for heating and atomization. Due to the high heating temperature during atomization, when the liquid matrix supply is insufficient, the small amount of liquid matrix on the heating element is not enough to consume the electrical energy released by the heating element, causing the heating surface temperature to rise further. This further exacerbates the thermal decomposition of the liquid matrix, and may even lead to carbon buildup and dry burning. This can easily cause the formed aerosol to produce a burnt smell, resulting in a significant deterioration in taste. In addition, the size of the liquid outlet channel is limited by the injection molding process, which makes it impossible to manufacture an aperture of less than or equal to 0.3 mm, making it difficult to provide sufficient capillary force to prevent the liquid atomization matrix from flowing back or overflowing. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an improved electronic atomizing device and atomizer.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to construct an atomizer, including a liquid storage chamber, an atomizing chamber, and a liquid outlet channel communicating with the atomizing chamber and the liquid storage chamber, wherein the cross-sectional area of ​​the liquid outlet channel gradually decreases towards the atomizing chamber to form a capillary effect to lock the liquid atomizing matrix.

[0005] In some embodiments, the atomizer includes a liquid outlet, which is disposed at one end of the liquid outlet channel and connects the liquid outlet channel with the atomization chamber.

[0006] In some embodiments, the size of the liquid outlet is 0.2-0.3 mm.

[0007] In some embodiments, the outlet is circular, and the radial dimension of the outlet is 0.2-0.3 mm.

[0008] In some embodiments, the liquid outlet channel includes a constriction section; the constriction section is arranged to contract toward the atomizing chamber and communicates with the atomizing chamber.

[0009] In some embodiments, the length of the contraction segment is 1.5-5 mm.

[0010] In some embodiments, two oppositely arranged channel walls in the liquid outlet channel extend toward the atomizing chamber and intersect to form a set included angle;

[0011] The set included angle is 15-30°.

[0012] In some embodiments, the contact angle between the liquid atomizing matrix and the channel wall of the liquid outlet channel is 30 to 60°.

[0013] In some embodiments, the liquid outlet channel includes a converging section and a direct current section; the converging section is arranged to contract toward the atomizing chamber and communicates with the atomizing chamber through the liquid outlet;

[0014] The DC section is located at the end of the contraction section away from the atomizing chamber and is connected to the liquid storage chamber.

[0015] In some embodiments, a nozzle structure is further included, wherein the atomizing chamber is formed in the nozzle structure; and the liquid outlet channel is disposed on the side wall of the nozzle structure.

[0016] In some embodiments, the nozzle structure is provided with an air supply channel, and the atomizing chamber is disposed at one end of the air supply channel and communicates with the air supply channel.

[0017] In some embodiments, the cross-sectional area of ​​the air supply channel is configured to gradually decrease toward the atomizing chamber.

[0018] In some embodiments, an atomizing seat is further included, wherein the nozzle structure is disposed at the central axis of the atomizing seat.

[0019] In some embodiments, the outer peripheral wall of the atomizing seat is provided with a ventilation structure communicating with the liquid storage chamber.

[0020] The present invention also provides an electronic atomizing device, including the atomizer described in the present invention.

[0021] The electronic atomizing device and atomizer of the present invention have the following beneficial effects: The atomizer, by gradually reducing the cross-sectional area of ​​the liquid outlet channel towards the atomizing chamber to form a capillary effect that locks the liquid atomizing matrix, can prevent the liquid atomizing matrix from flowing back and overflowing into the atomizing chamber. This allows for timely liquid dispensing during the next atomization cycle, improving atomization efficiency. Simultaneously, it overcomes the limitations of injection molding processes, namely the inability to manufacture orifices smaller than or equal to 0.3 mm, avoiding the difficulty in providing sufficient capillary force to prevent the liquid atomizing matrix from flowing back or overflowing. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0023] Figure 1 These are schematic diagrams of the electronic atomization device in some embodiments of the present invention;

[0024] Figure 2 This is a schematic diagram of the atomizer structure of the electronic atomizing device of the present invention;

[0025] Figure 3 yes Figure 2 The diagram shows a cross-sectional view of the atomizer.

[0026] Figure 4 yes Figure 2 The diagram shows an exploded view of the atomizer's structure.

[0027] Figure 5 yes Figure 4 A schematic diagram of the atomizing base of the atomizer shown;

[0028] Figure 6 yes Figure 5 A cross-sectional view of the atomizing base shown;

[0029] Figure 7 yes Figure 5 A schematic diagram of the liquid outlet channel of the atomizing seat shown;

[0030] Figure 8 yes Figure 1 The diagram shows the first placement state of the electronic atomizing device.

[0031] Figure 9 yes Figure 1 The diagram shows the second placement state of the electronic atomizing device.

[0032] Figure 10 yes Figure 1 The diagram shows the third placement state of the electronic atomizing device.

[0033] Figure 11 yes Figure 1 The diagram shows the balanced pressure state of the liquid storage chamber after air exchange in the electronic atomizing device.

[0034] Figure 12 yes Figure 1 The diagram shows the balanced pressure state of the liquid storage chamber in the electronic atomizing device without air exchange. Detailed Implementation

[0035] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0036] Figure 1 An electronic atomizing device 1 according to some embodiments of the present invention is shown. This device 1 can be used to atomize a liquid matrix to generate an aerosol, which can be inhaled or swallowed by a user. In this embodiment, the aerosol may be generally columnar. The liquid matrix may include e-liquid or medicinal liquid, etc. This electronic atomizing device 1 has the advantages of being leak-proof and having high atomization efficiency.

[0037] Furthermore, in some embodiments, the electronic atomizing device 1 includes an atomizer 100 and a power supply assembly 200. The atomizer 100 is used to atomize a liquid atomizing matrix. The power supply assembly 200 is mechanically and / or electrically connected to the atomizer 100 and is used to supply power to the atomizer 100.

[0038] like Figures 2 to 4 As shown, in some embodiments, the atomizer 100 includes an atomizing shell 10, a base 20, a sealing sleeve 30, and an atomizing seat 40. The atomizing shell 10 is used to house components such as the base 20, the sealing sleeve 30, and the atomizing seat 40, and can also be used to house a liquid atomizing matrix. The base 20 is used to support the atomizing seat 40. The atomizing seat 40 is detachably fitted onto the base 20 for atomizing the liquid atomizing matrix. The sealing sleeve 30 is fitted onto the atomizing seat 20 to seal the connection between the atomizing seat 20 and the atomizing shell 10.

[0039] In some embodiments, the atomizing shell 10 includes a shell 11, an air outlet pipe 12, and a liquid storage chamber 13. The shell 11 has a cylindrical structure and is hollow. One end of the shell 11 may be provided with an air outlet 111, and a section of the shell 11 near the air outlet 111 is flattened to form a nozzle. The end of the shell 11 away from the air outlet 111 is provided with an assembly opening for the insertion of components such as the base 20, sealing sleeve 30, and atomizing seat 40. The air outlet pipe 12 is disposed in the shell 11, located at the central axis of the shell 11. An air outlet channel 121 may be formed on the inner side of the air outlet pipe 12 for outputting the aerosol formed by atomization. The gap between the air outlet pipe 12 and the inner wall of the shell 11 can form a liquid storage chamber 13 for storing liquid atomizing matrix.

[0040] In some embodiments, the base 20 includes a seat body 21 and a support portion 22 that mates with the atomizing base 40. The shape and size of the seat body 21 correspond to the shape and size of the mounting opening 112 of the housing 11, and it seals the mounting opening 112 of the housing 11. The support portion 22 is disposed on the seat body 21, extends into the atomizing base 40, supports the atomizing base 40, and can be engaged with the atomizing base 40 by a snap-fit ​​structure. In some embodiments, the support portion 22 is annular. Of course, it is understood that in other embodiments, the support portion 22 is not limited to being annular.

[0041] In some embodiments, the sealing sleeve 30 is fitted around the atomizing base 40. The sealing sleeve 30 includes a first sleeve body 31. The first sleeve body 31 is fitted onto the atomizing base 40. The cross-section of the first sleeve body 31 may be generally circular, and it is a cylindrical structure with an opening at one end. The first sleeve body 31 can be press-fitted with the atomizing base 40, and when it is installed into the atomizing shell 10, it can be press-fitted with the atomizing shell 10. Of course, it is understood that in some other embodiments, the cross-section of the first sleeve body 31 is not limited to being circular, and it may be square or elliptical. In some embodiments, a liquid inlet channel 311 is provided on the top wall of the first sleeve body 31. The liquid inlet channel 311 is formed in the first sleeve body 31 and extends from the top wall of the first sleeve body 31 toward the opening of the first sleeve body 31. The liquid inlet channel 311 is formed on the side wall of the boss 312 provided in the first sleeve body 31 and communicates with the liquid storage chamber 13. In some other embodiments, the liquid inlet channel 311 is not limited to forming a boss 312, which can be omitted. The liquid inlet channel 311 can be directly formed in the liquid inlet hole opened on the first housing 31.

[0042] In some embodiments, the sealing sleeve 30 further includes an embedding portion 32, which is disposed on the top wall of the first sleeve body 31 and protrudes from the top wall of the first sleeve body 31. The embedding portion 32 can be embedded in the air outlet pipe 12 and is interference-fitted with the air outlet pipe 12. The embedding portion 32 has a through-structure at both ends and can communicate with the air outlet channel 121. In some embodiments, the cross-sectional dimensions and shape of the embedding portion 32 are adapted to the cross-sectional dimensions and shape of the first sleeve body 31. In some embodiments, the cross-section of the embedding portion 32 can be elliptical. Of course, it is understood that in some other embodiments, the cross-section of the embedding portion 32 is not limited to being elliptical. A connecting channel 321 is provided at the central axis of the embedding portion 32, which can communicate with the air outlet channel 121 and the atomizing chamber 421.

[0043] In some embodiments, the sealing sleeve 30 further includes a second sleeve 33, which protrudes from the top wall of the first sleeve 31. The second sleeve 33 is a columnar structure with both ends extending through it, and its cross-sectional dimension is smaller than that of the first sleeve 31. The second sleeve 33 is disposed on one side of the embedding portion 32 and is used to fit around the outer periphery of the ventilation column 411.

[0044] like Figures 5 to 7As shown, in some embodiments, the atomizing seat 40 includes a sleeve portion 41 and a nozzle structure 42. The sleeve portion 41 is sleeved on the support portion 22. The sleeve portion 41 is a hollow structure with an opening at one end, and an annular cavity 410 can be formed inside, which can be used to allow external gas to enter. The sleeve portion 41 can be snapped onto the support portion 22 by providing a snap-fit ​​structure. In some embodiments, a ventilation column 411 is provided on the sleeve portion 41. The ventilation column 411 protrudes from the top wall of the sleeve portion 41 and can extend into the liquid storage chamber 13 to ventilate the liquid storage chamber 13 and balance the gas pressure in the liquid storage chamber 13. The nozzle structure 42 is disposed in the sleeve portion 41 and is located at the central axis of the sleeve portion 41. It is connected to the top wall of the sleeve portion 41 and extends in the direction of the opening of the sleeve portion 41. The nozzle structure 42 is connected to the air outlet channel 121 and is used to spray aerosol into the air outlet channel 121.

[0045] In some embodiments, the nozzle structure 42 is cylindrical; in some embodiments, the nozzle structure 42 may be generally cylindrical. It is understood that in other embodiments, the nozzle structure 42 is not limited to a cylindrical shape; it may be elliptical, cuboid, or similar. The atomizer includes an atomizing chamber 421, specifically disposed at the central axis of the nozzle structure 42 and located on a section of the nozzle structure 42 near the top wall of the sleeve portion 41. The atomizing chamber 421 may be a cylindrical cavity and communicates with the air outlet channel 121, used for high-speed airflow to cut the liquid atomizing matrix to form small-particle aerosols, which are then output to the air outlet channel 121.

[0046] In some embodiments, the nozzle structure 42 is disposed within an air supply channel 422, which is formed at the central axis of the nozzle structure 42 and connected at one end to an atomizing chamber 421. That is, the atomizing chamber 421 is disposed at one end of the air supply channel 422 and communicates with it. The cross-sectional area of ​​the air supply channel 422 gradually decreases towards the atomizing chamber 421, meaning the air supply channel 422 can have a constricted shape, thereby accelerating the airflow from the air supply mechanism before ejecting it into the atomizing chamber 421. In some embodiments, the air supply channel 422 is a conical channel. It is understood that in other embodiments, the air supply channel 422 may also be other constricted shapes such as an elliptical cone or a pyramid.

[0047] In some embodiments, the nozzle structure 42 is provided with a partition 423, which separates the atomizing chamber 421 and the air supply channel 422. The partition 423 is located at the central axis of the nozzle structure 42 and is coaxially arranged with the atomizing chamber 421. In some embodiments, the partition 423 is generally circular. Of course, it is understood that in other embodiments, the partition 423 is not limited to being circular and can be square, elliptical, or other shapes. In some embodiments, the partition 423 is provided with an atomizing port 4231, which communicates with the air supply channel 422 and the atomizing chamber 421. The atomizing port 4231 is coaxially arranged with the air supply channel 422. The atomizing port 4231 is used to supply high-speed airflow and cut the liquid film formed on the atomizing port 4231 to form small-particle aerosols. The aerosols can be carried away from the atomizing port 4231 by the high-speed airflow and then sprayed out with the airflow to complete the atomization process. In some embodiments, the atomizing orifice 4231 may be circular. However, it is understood that in other embodiments, the size of the atomizing orifice 4231 is not limited to being circular. The size and shape of the atomizing orifice 4231 can affect the magnitude of the negative pressure within the atomizing chamber 421 and the particle size of the generated liquid particles, thus making the flow rate more stable. Specifically, the aperture of the atomizing orifice 4231 is related to the airflow velocity (m / s) exiting the atomizing orifice 4231, which can affect the particle size of the generated liquid particles. In some embodiments, the aperture of the atomizing orifice 4231 can be set to an appropriate size as needed.

[0048] In some embodiments, the nozzle structure 42 has a nozzle 424 at one end away from the atomizing port 4231, and the nozzle 424 is disposed relative to the air outlet channel 121. The nozzle 424 is used to spray small-diameter aerosol particles. The center of the nozzle 424 may be on the same straight line as the center of the atomizing port 4231. The nozzle 424 may be generally circular. Of course, it is understood that in some other embodiments, the size of the nozzle 424 is not limited to being circular, and it may be square, elliptical, or other shapes. The radial dimension of the nozzle 424 may be larger than the radial dimension of the atomizing port 4231 in order to increase the output amount of aerosol per unit area.

[0049] In some embodiments, the nozzle structure 42 includes a liquid outlet 425. Specifically, the liquid outlet 425 is disposed on the nozzle structure 42, located on the side wall of the nozzle structure 42, and positioned between the atomizing port 4231 and the nozzle 424, and communicates with the atomizing chamber 421. In some embodiments, the distance from the liquid outlet 425 to the atomizing port 4231 is less than the distance from the liquid outlet 425 to the nozzle 424, thereby facilitating the generation of negative pressure at the liquid outlet 425 by the high-speed airflow ejected from the atomizing port 4231. This allows the liquid matrix in the storage chamber 13 to be drawn out into the atomizing chamber 421, forming a liquid film on the inner wall surface of the atomizing chamber 421. As the liquid supply process continues, the liquid film moves to the edge of the hole wall of the atomizing port 4231 and encounters the high-speed airflow, where it is cut and atomized into fine liquid particles by the high-speed airflow. In some embodiments, the liquid outlet 425 can be circular, and its radial dimension D can be 0.2-0.3 mm. Of course, it is understood that in other embodiments, the outlet 425 is not limited to being circular, but may be square or other shapes. The size of the outlet 425 may be 0.2-0.3 mm. When the maximum size of the outlet 425 is less than or equal to 0.3 mm, the cross-sectional area of ​​the outlet 425 is small enough that the capillary force formed at the outlet 425 is greater than the sum of the negative pressure of the liquid storage chamber 13 and the gravity of the liquid atomizing matrix, thereby locking the liquid atomizing medium and preventing the liquid atomizing medium from flowing back and overflowing.

[0050] In some embodiments, the atomizer further includes a liquid outlet channel 43 disposed on the atomizing seat 40. Specifically, the liquid outlet channel 43 may be disposed on the outer wall of the nozzle structure 42, and one end is connected to the liquid outlet 425, which in turn connects to the atomizing chamber 421. In some embodiments, the liquid outlet channel 43 may be connected to the liquid storage chamber 13 for outputting the liquid atomizing matrix in the liquid storage chamber 13 to the atomizing chamber 421. Specifically, in some embodiments, the liquid outlet channel 43 may be connected to the liquid inlet channel 311 and thus connect to the liquid storage chamber 13. In some embodiments, the channel wall of the liquid outlet channel 43 may be made of PCTG material, and in some embodiments, the atomizing seat 40 may also be entirely made of PCTG material. In some embodiments, the contact angle between the liquid atomizing matrix and the channel wall of the liquid outlet channel 43 is 30 to 60°. Of course, it is understood that in other embodiments, the channel wall of the liquid outlet channel 43 is not limited to being made of PCTG material.

[0051] In some embodiments, the liquid outlet channel 43 includes a constriction section 431 that contracts toward and communicates with the atomizing chamber 421. The cross-sectional area of ​​the liquid outlet channel 43 gradually decreases toward the atomizing chamber 421. Specifically, the cross-sectional dimension of the constriction section 431 gradually decreases toward the atomizing chamber 421 to form a capillary effect that locks the liquid atomizing matrix, thereby preventing backflow and overflow of the liquid atomizing medium. In some embodiments, the constriction section 431 may be a generally conical channel, and the liquid outlet 425 is formed in the conical portion of the constriction section 431. Of course, it is understood that in other embodiments, the constriction section 431 is not limited to a conical shape; it may be a constricted shape such as a frustum or a pyramid.

[0052] In some embodiments, the length L of the contraction section 431 can be 1.5-5 mm. The contraction section 431 can generate capillary resistance to prevent the liquid atomizing matrix from flowing back and overflowing, and store the liquid atomizing matrix so that it can be dispensed in time during the next atomization, thereby improving atomization efficiency.

[0053] In some embodiments, two oppositely arranged channel walls in the liquid outlet channel 43 extend toward the atomizing chamber 421 and intersect to form a set included angle β. The set included angle β can be an acute angle. Specifically, in some embodiments, the set included angle β can be 15-30°. The size of the set included angle β affects the radial dimension of the liquid outlet 425, and thus affects the capillary action at the liquid outlet 425.

[0054] In some embodiments, the liquid outlet channel 43 further includes a direct current section 432, which is located at the end of the contraction section 431 away from the atomizing chamber 421 and communicates with the liquid storage chamber 13. The cross-sectional dimensions of each section of the direct current section 432 are constant. The direct current section 432 is a cylindrical channel; however, it is understood that in other embodiments, the direct current section 432 may also be a square channel or other types. The direct current section 432 forms a resistance channel to increase the resistance of the liquid atomizing matrix flowing back to the liquid storage chamber 13 and can also serve as a temporary storage for the liquid atomizing matrix. It is understood that in some embodiments, the direct current section 432 may be omitted.

[0055] In some embodiments, the outer peripheral wall of the atomizing seat 40 is provided with a ventilation structure 44, which includes a first ventilation groove 441, a guide groove 442, and a second ventilation groove 443. The first ventilation groove 441 is disposed on the outer peripheral wall of the atomizing seat 40 and extends circumferentially along the atomizing seat 40. The first ventilation groove 441 is bendable. The guide groove 42 is disposed on the top wall of the atomizing seat 40 and communicates with the first ventilation groove 441 at one end and with the second ventilation groove 443 at the other end. The second ventilation groove 443 is disposed on the ventilation column 411 and is arranged axially along the ventilation column 411, and can communicate with the liquid storage chamber 13. The first ventilation groove 441, the guide groove 442, and the second ventilation groove 443 are sequentially connected to form a ventilation channel, which is formed between the atomizing seat 40 and the sealing sleeve 30. This ventilation channel is used to balance the air pressure in the liquid storage chamber 13 to facilitate liquid discharge.

[0056] For example Figures 2 to 4 As shown, in some embodiments, the atomizer 100 further includes a sealing structure 50, which is sleeved on the air intake column in the base 20 and is in sealed contact with the end face of the nozzle structure 42 away from the nozzle 424. In some embodiments, the sealing structure 50 may be columnar. In some embodiments, the sealing structure 50 may be a silicone sleeve or a rubber sleeve.

[0057] In some embodiments, the atomizer 100 further includes a connector 60, which can be embedded in the base 20 for connecting an air supply mechanism. Specifically, in some embodiments, the connector 60 can be connected to an air pump. In some embodiments, the connector 60 can be a threaded sleeve, which can be screwed onto the connector of the air pump.

[0058] In some embodiments, the atomizer 100 further includes a base 70, which can be sleeved on the atomizing shell 10 and is located on the section of the atomizing base 10 where the mounting opening 14 is provided, and is snapped into the atomizing shell 10. In some embodiments, the base 70 can be a metal base, which can be used to prevent components such as the base 20 and the atomizing base 40 from coming off.

[0059] In some embodiments, the atomizer 100 further includes a heating element. In some embodiments, the heating element may be disposed in the air outlet channel 121 for heating the small-diameter aerosol output from the atomization chamber 421. In some embodiments, the heating element may include a heating element, which may be electrically connected to the power supply component 200 by providing a conductive structure.

[0060] In some embodiments, the power supply assembly 200 may include a housing and a power source disposed within the housing. The power source can be used to supply power to the heating assembly. In some embodiments, the atomizer 100 further includes an air supply mechanism, which may be disposed within the housing of the power supply assembly 200. In some embodiments, the air supply mechanism may be an air pump.

[0061] The working principle of the electronic atomizing device 1 is as follows:

[0062] When suction begins: The air supply mechanism (such as an air pump) receives the suction signal and starts supplying air to the air supply channel 422;

[0063] Atomization process: Gas passes through atomization port 4231 and generates a Venn diagram smaller than that, causing the liquid atomization matrix to be drawn into atomization chamber 421 from the direct flow section 432 and the contraction section 431 and cut by the high-speed airflow ejected from atomization port 4321. Then, it is carried away from atomization port 4321 by the high-speed airflow and forms small-particle aerosol.

[0064] When the suction ends, the air supply mechanism (such as an air pump) receives the stop suction signal and stops supplying air. The negative pressure inside the nozzle structure 42 disappears, and the liquid atomizing matrix no longer automatically flows out but stays in the liquid outlet channel 43 and the liquid storage chamber 13. At this time, the capillary action generated by the contraction section 431 of the liquid outlet channel 43 locks the liquid atomizing matrix here, that is, the liquid atomizing matrix in the liquid outlet channel 43 does not flow back or overflow.

[0065] Figures 8 to 10 The electronic atomizing device 1 is shown in a first, second, and third placement state. The first placement state is a horizontal placement state, the second placement state is an inverted placement state, and the third placement state is an upright placement state. The inverted placement state is the extreme case. P 毛 Need to overcome P 腔 +P 重 ;where P 腔 The limiting condition is 400 Pa, P 重 If the limiting case is 100 Pa, then P 毛 A pressure greater than 500 Pa can achieve a liquid-locking effect; the specific pressure can be calculated using the following formula.

[0066]

[0067] In the formula, σ is the surface tension coefficient of the liquid atomizing matrix, θ is the contact angle, and R is the cone radius. The surface tension coefficient of the liquid atomizing matrix is ​​approximately 0.03 to 0.045 N / m, and the contact angle between the liquid atomizing matrix and the channel wall of the liquid outlet channel 43 is 30 to 60°.

[0068] After the atomizer 100 completes its negative pressure-driven liquid supply, in the inverted state, the combined effect of the negative pressure in the liquid storage chamber 13 and the gravitational pressure of the liquid atomizing matrix will draw the liquid outlet channel 43 back into the liquid storage chamber 13. By gradually reducing the cross-section of the liquid outlet channel 43 towards the atomizing chamber 421 to create a capillary effect that locks the liquid atomizing matrix, capillary resistance can be generated to prevent the liquid atomizing matrix from flowing back. After the user finishes aspiration, the liquid storage chamber will have two states: no air exchange and just air exchange. The negative pressure state is as follows: Figures 11 to 12 As shown, Figure 12 In the case where there is gas that reaches the ventilation channel but does not enter the liquid storage chamber 13 for ventilation, the negative pressure generated in the liquid storage chamber 13 is at its maximum, and the liquid outlet channel 43 needs to provide the maximum capillary force to resist the backflow of the liquid atomized matrix.

[0069] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. An atomizer, characterized in that, It includes a liquid storage chamber (13), an atomizing chamber (421), and a liquid outlet channel (43) communicating with the atomizing chamber (421) and the liquid storage chamber (13). The cross-sectional area of ​​the liquid outlet channel (43) gradually decreases towards the atomizing chamber (421) to form a capillary effect to lock the liquid atomizing matrix. The atomizer includes a liquid outlet (425), which is located at one end of the liquid outlet channel (43) and connects the liquid outlet channel (43) with the atomizing chamber (421); the maximum size of the liquid outlet (425) is less than or equal to 0.3 mm.

2. The atomizer according to claim 1, characterized in that, The size of the liquid outlet (425) is 0.2-0.3 mm.

3. The atomizer according to claim 1, characterized in that, The liquid outlet (425) is circular, and the radial dimension of the liquid outlet (425) is 0.2-0.3 mm.

4. The atomizer according to claim 1, characterized in that, The liquid outlet channel (43) includes a contraction section (431); the contraction section (431) is configured to contract toward the atomizing chamber (421) and is connected to the atomizing chamber (421).

5. The atomizer according to claim 4, characterized in that, The length of the contraction section (431) is 1.5-5 mm.

6. The atomizer according to claim 1, characterized in that, The two oppositely arranged channel walls in the liquid outlet channel (43) extend toward the atomizing chamber (421) and intersect to form a set included angle (β); The set included angle (β) is 15-30°.

7. The atomizer according to claim 1, characterized in that, The contact angle between the liquid atomizing matrix and the channel wall of the liquid outlet channel (43) is 30-60°.

8. The atomizer according to claim 1, characterized in that, The liquid outlet channel (43) includes a converging section (431) and a direct flow section (432); the converging section (431) is arranged to contract toward the atomizing chamber (421) and is connected to the atomizing chamber (421) through the liquid outlet (425); The DC section (432) is located at the end of the contraction section (431) away from the atomizing chamber (421) and is connected to the liquid storage chamber (13).

9. The atomizer according to claim 1, characterized in that, It also includes a nozzle structure (42), in which the atomizing chamber (421) is formed; and the liquid outlet channel (43) is disposed on the side wall of the nozzle structure (42).

10. The atomizer according to claim 9, characterized in that, The nozzle structure (42) is provided with an air supply channel (422), and the atomizing chamber (421) is located at one end of the air supply channel (422) and communicates with the air supply channel (422).

11. The atomizer according to claim 10, characterized in that, The cross-sectional area of ​​the air supply channel (422) is set to gradually decrease towards the atomizing chamber (421).

12. The atomizer according to claim 9, characterized in that, It also includes an atomizing seat (40), wherein the nozzle structure (42) is disposed at the central axis of the atomizing seat (40).

13. The atomizer according to claim 12, characterized in that, The outer peripheral wall of the atomizing seat (40) is provided with a ventilation structure (44) that communicates with the liquid storage chamber (13).

14. An electronic atomizing device, characterized in that, Includes the atomizer (100) as described in any one of claims 1 to 13.

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