Atomizer and electronic atomization device

Abstract

The present invention relates to an atomizer and an electronic atomization device, wherein the atomizer is provided with a liquid storage chamber and a ventilation channel, wherein the ventilation channel comprises a first sub-channel and a second sub-channel, wherein the first sub-channel comprises a throttling channel and a cache channel, wherein the liquid storage chamber is connected to the throttling channel, wherein the second sub-channel is connected to the cache channel and the outside, wherein the cache channel comprises an expansion section and a cache section, wherein the two ends of the expansion section are directly connected to the throttling channel and the cache section respectively, wherein the minimum cross-sectional dimension of the expansion section is greater than or equal to the cross-sectional dimension of the throttling channel, wherein the cache section can store leaked liquid from the throttling channel, and the outside gas can sequentially enter the liquid storage chamber through the second sub-channel, the cache channel and the throttling channel. In this way, the manufacturing cost can be reduced and liquid leakage can be prevented on the basis of ensuring smooth ventilation of the atomizer.

Description

Technical Field

[0001] The present invention relates to the field of atomization technology, and in particular to an atomizer and an electronic atomization device comprising the atomizer. Background Art

[0002] There are dozens of carcinogens in tobacco smoke, such as tar, which is very harmful to human health. The smoke fills the air and forms secondhand smoke, which can also cause harm to the body when inhaled by people around. Therefore, smoking is prohibited in most public places. Electronic atomizers have a similar appearance and taste to ordinary cigarettes, but usually do not contain tar, suspended particles and other harmful ingredients in cigarettes. Therefore, electronic atomizers are widely used as substitutes for cigarettes.

[0003] The electronic atomization device includes an atomizer, which is used to atomize liquid to form smoke that can be inhaled. Generally, in the process of the liquid in the atomizer liquid storage chamber being consumed by the atomizer core, negative pressure will gradually be generated in the liquid storage chamber, which will affect the speed of supplying liquid to the atomizer core, that is, the phenomenon of "liquid flow is not smooth", so that the atomizer core will dry burn because the liquid consumption speed is greater than the supply speed. In order to avoid the dry burning of the atomizer core, a ventilation channel connecting the outside world and the atomization chamber is usually opened on the atomizer. When the liquid in the liquid storage chamber is reduced, the outside gas will enter the liquid storage chamber through the ventilation channel and fill the space vacated by the consumption of the liquid, so as to prevent the liquid storage chamber from being poorly discharged and dry burning due to the negative pressure.

[0004] However, conventional atomizers either have defects of high cost due to complex structure and difficult assembly, or have defects of poor ventilation or liquid leakage outside the atomizer. Summary of the invention

[0005] A technical problem solved by the present invention is how to reduce the manufacturing cost and prevent liquid leakage while ensuring smooth ventilation of the atomizer.

[0006] A nebulizer, the nebulizer is provided with a liquid storage chamber and a ventilation channel, the ventilation channel comprises a first sub-channel and a second sub-channel, the first sub-channel comprises a throttling channel and a cache channel, the liquid storage chamber is connected with the throttling channel, the second sub-channel is connected with the cache channel and the outside, the cache channel comprises an expansion section and a cache section, the two ends of the expansion section are directly connected with the throttling channel and the cache section respectively, the minimum cross-sectional dimension of the expansion section is greater than or equal to the cross-sectional dimension of the throttling channel, the cache section can store leaked liquid from the throttling channel, and the outside gas can enter the liquid storage chamber through the second sub-channel, the cache channel and the throttling channel in sequence.

[0007] In one embodiment, the buffer section is partially defined by a first inner wall surface and a second inner wall surface, the first inner wall surface includes a low-lying unit surface directly connected to the second inner wall surface, the second inner wall surface is closer to the throttling channel than the low-lying unit surface, the second sub-channel passes through the second inner wall surface and communicates with the buffer section, and the leaked liquid is stored in the space defined by the low-lying unit surface in the buffer section. In this way, the buffer section can have a certain storage capacity for liquid.

[0008] In one embodiment, the expansion section is partially defined by the downstream surface, and the first inner wall surface also includes a flow guiding unit surface, which is connected between the downstream surface and the low-lying unit surface, and the flow guiding unit surface is bent away from the expansion section so that the maximum cross-sectional dimension of the buffer section is larger than the cross-sectional dimension of the expansion section. In this way, the time for the liquid to reach the low-lying unit surface can be extended, and the resistance along the liquid flow can be increased, thereby reducing the space defined by the low-lying unit surface in the buffer section per unit time.

[0009] In one embodiment, the guide unit surface and the depression unit surface are on the same arc surface, so that the first inner wall surface can be more regular and easier to process, thereby reducing the manufacturing cost.

[0010] In one embodiment, the cache channel is partially defined by two first inner wall surfaces and two downstream surfaces, the first inner wall surface and the downstream surface located on one side of the second inner wall surface and connected to each other are recorded as a first whole, and the first inner wall surface and the downstream surface located on the other side of the second inner wall surface and connected to each other are recorded as a second whole, and the first whole and the second whole are symmetrically arranged with respect to the second inner wall surface. In this way, the entire cache channel can be in a "full heart shape", thereby increasing the storage capacity of the cache channel for liquid.

[0011] In one embodiment, the number of the first sub-channels is multiple, and the throttling channel of the first sub-channel adjacent to the liquid storage chamber is connected to the liquid storage chamber; for two adjacent first sub-channels, the throttling channel in one of the first sub-channels penetrates the second inner wall defining the boundary of the other first sub-channel; the second sub-channel penetrates the second inner wall defining the boundary of the first sub-channel adjacent to it. Multiple first sub-channels can increase the storage capacity of the ventilation channel for liquid.

[0012] In one embodiment, the cross-sectional size of the expansion section gradually increases in a direction away from the throttling channel, thereby reducing manufacturing costs.

[0013] In one embodiment, the throttling channel is partially defined by the throttling inner bottom wall, and the buffer channel is partially defined by the buffer inner bottom wall, and the buffer inner bottom wall and the throttling inner bottom wall are arranged at intervals so that the depth of the buffer channel is greater than the depth of the throttling channel. On the one hand, the smoothness of gas flow can be improved, and on the other hand, the storage capacity of the buffer channel for liquid can be increased.

[0014] In one embodiment, the depth of the throttling channel ranges from 0.1 mm to 0.5 mm, and the depth of the cache channel ranges from greater than or equal to 1 mm.

[0015] In one embodiment, the throttling channel is a linear channel, which makes the throttling channel easy to process and reduces the manufacturing cost.

[0016] In one embodiment, the depth of the second sub-channel is less than the depth of the cache channel, so that the liquid storage capacity in the cache channel adjacent to the second sub-channel can be increased.

[0017] In one embodiment, the atomizer includes a housing component and an atomizing component contained in the housing component and used to atomize liquid, and a ventilation groove is formed on the outer surface of the atomizing component, and the ventilation groove is covered by the housing component to form the ventilation channel. This can facilitate processing and reduce manufacturing costs.

[0018] In one embodiment, the shell component is provided with an air inlet channel directly connected to the outside, the atomizing component is also provided with an atomizing chamber and a diverter hole, the atomizing chamber is directly connected to the diverter hole and the air inlet channel, the outer surface of the atomizing component includes a first surface and a second surface located in the thickness direction of the atomizing component and facing opposite directions, the first surface is provided with the ventilation groove connected to one end of the diverter hole, the second surface is provided with the ventilation groove connected to the other end of the diverter hole, the diverter hole is covered by the shell component to form a diverter channel, and the external gas enters the ventilation channel through the air inlet channel, the atomizing chamber and the diverter channel in turn. The number of ventilation channels can be increased to improve the smoothness of ventilation, and the storage capacity of the leaked liquid from the liquid storage chamber can be increased to prevent the leaked liquid from leaking out of the atomizer.

[0019] In one embodiment, the number of the diversion holes is two, and the two diversion holes are located on opposite sides of the atomization chamber.

[0020] An electronic atomization device comprises a power source and any one of the above-mentioned atomizers, wherein the power source is connected to the atomizer and provides electrical energy to the atomizer. By providing the atomizer, the service life and safety of the electronic atomization device can be improved.

[0021] A technical effect of an embodiment of the present invention is: in view of the fact that the minimum cross-sectional dimension of the expansion section is greater than or equal to the cross-sectional dimension of the throttling channel, under the action of the internal tension (cohesion) of the liquid itself, it is difficult for the liquid to enter the expansion section with a larger cross-sectional dimension from the throttling channel with a smaller cross-sectional dimension, thereby slowing down the flow rate of the liquid in the throttling channel, preventing the liquid in the throttling channel from quickly entering the cache channel, thereby reducing the total leakage of the liquid in the liquid storage chamber per unit time, and preventing the ventilation channel from leaking out of the entire atomizer due to the oversaturation of the stored liquid in a short period of time. At the same time, the flow rate of the gas entering the throttling channel with a smaller cross-sectional dimension from the expansion section with a larger cross-sectional dimension will be significantly increased. Under the action of the high-speed airflow, the liquid in the throttling channel will be quickly squeezed into the cache channel, thereby eliminating the obstruction of the leakage in the throttling channel to the airflow, reducing the resistance along the flow of the gas in the ventilation channel, and improving the smoothness of the ventilation of the atomizer. In addition, the structure of the entire ventilation channel is relatively simple, which can reduce the manufacturing cost of the entire atomizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of an atomizer provided in an embodiment;

[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the atomizer shown in another viewing angle;

[0024] Figure 3 for Figure 1 A schematic diagram of a partial three-dimensional cross-sectional structure of the atomizer shown;

[0025] Figure 4 for Figure 1 A schematic diagram of the structure of the atomizing assembly in the atomizer shown;

[0026] Figure 5 for Figure 4 A schematic diagram of a three-dimensional cross-sectional structure of the atomizing assembly;

[0027] Figure 6 for Figure 4 A schematic diagram of a planar cross-sectional structure of the atomizing assembly;

[0028] Figure 7 for Figure 4 A front view structural schematic diagram of the atomization assembly;

[0029] Figure 8 A schematic diagram of the flow trajectory of the gas entering the liquid storage chamber from the outside and flowing through the atomization component;

[0030] Fig. 9 is a schematic diagram of the flow trajectory of the liquid entering the ventilation channel from the liquid storage chamber;

[0031] Fig.10 for Figure 4 A partial front view structural schematic diagram of the atomization assembly. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0034] See also Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, an atomizer 10 includes a housing assembly 400 and an atomizer assembly 500. The atomizer assembly 500 is used to atomize an aerosol-generating substrate such as a liquid to form smoke that can be inhaled by a user. The atomizer assembly 500 is disposed inside the housing assembly 400. An air inlet channel 80 and a liquid storage chamber 20 are provided on the housing assembly 400. The air inlet channel 80 is directly connected to the outside. The liquid storage chamber 20 is used to store liquid that can be supplied to the atomizer assembly 500.

[0035] See also Figure 4 and Figure 5 The outer surface of the atomizer assembly 500 includes a first surface 510 and a second surface 520 facing oppositely. The first surface 510 and the second surface 520 are arranged at intervals along the thickness direction of the atomizer assembly 500. A diverter hole 61 and an atomization chamber 70 are provided on the atomizer assembly 500. The diverter hole 61 penetrates the first surface 510 and the second surface 520 at the same time. A ventilation groove 31 is formed on the first surface 510 along the thickness direction of the atomizer assembly 500, and the ventilation groove 31 is connected to one end of the diverter hole 61 close to the first surface 510; a ventilation groove 31 is also formed on the second surface 520 along the thickness direction of the atomizer assembly 500, and the ventilation groove 31 is connected to one end of the diverter hole 61 close to the second surface 520, so one diverter hole 61 corresponds to two ventilation grooves 31.

[0036] When the atomizer assembly 500 is installed in the housing assembly 400, the housing assembly 400 covers and seals the openings of the ventilation groove 31 and the diverter hole 61, so that the ventilation groove 31 forms a ventilation channel 30, and the diverter hole 61 forms a diverter channel 60. External gas can enter the liquid storage chamber 20 through the air inlet channel 80, the atomizer chamber 70, the diverter channel 60 and the ventilation channel 30 in sequence. When the liquid in the liquid storage chamber 20 is consumed and reduced by the atomizer assembly 500, the external gas will enter the liquid storage chamber 20 to fill the space vacated by the liquid consumption, thereby avoiding the negative pressure in the liquid storage chamber 20 and affecting the liquid supply speed to the atomizer assembly 500, and preventing the atomizer assembly 500 from dry burning due to the liquid consumption speed being greater than the supply speed.

[0037] Since one diverter hole 61 corresponds to two ventilation grooves 31, one diverter channel 60 also corresponds to two ventilation channels 30. The number of diverter holes 61 can be two, and the two diverter holes 61 are located on opposite sides of the atomization chamber 70. Therefore, when the number of diverter channels 60 (diverter holes 61) is two, the number of ventilation channels 30 (ventilation grooves 31) is four. Of course, the number of diverter holes 61 can be one, and one diverter hole 61 can correspond to only one ventilation groove 31.

[0038] In other embodiments, the ventilation groove 31 may be formed by only the inner surface of the housing assembly 400 being recessed, or by both the inner surface of the housing assembly 400 and the outer surface of the atomizer assembly 500 being recessed. The diverter hole 61 may be formed by only the inner surface of the housing assembly 400 being recessed, or by both the inner surface of the housing assembly 400 and the outer surface of the atomizer assembly 500 being recessed.

[0039] See also Figure 3 , Figure 4 and Figure 5 In some embodiments, the ventilation channel 30 includes a first sub-channel 40 and a second sub-channel 50. The first sub-channel 40 includes a throttling channel 200 and a cache channel 300. The throttling channel 200 is connected to the liquid storage chamber 20. The throttling channel 200 is formed by a portion of the outer surface of the atomizer assembly 500 being recessed to a set depth. In other words, a portion of the outer surface is recessed to form a throttling inner wall surface 210 and a throttling inner bottom wall surface 220. The throttling inner wall surface 210 and the throttling inner bottom wall surface 220 define a portion of the boundary of the throttling channel 200. There are two throttling inner wall surfaces 210, and the two throttling inner wall surfaces 210 are relatively arranged at both ends of the throttling inner bottom wall surface 220. The throttling channel 200 can be a linear channel, so that the throttling inner wall surface 210 and the throttling inner bottom wall surface 220 are both planes. The spacing between the two throttling inner wall surfaces 210 can be defined as the cross-sectional dimension h of the throttling channel 200 (such as Fig.10 ), the cross-sectional dimension h of the throttling channel 200 can be equal everywhere.

[0040] The cache channel 300 is formed by a portion of the outer surface of the atomizer assembly 500 being recessed to a set depth. In other words, a portion of the outer surface is recessed to form a downstream surface 311, a first inner wall surface 321, a second inner wall surface 322, and a cache inner bottom wall surface 323. The downstream surface 311, the first inner wall surface 321, and the second inner wall surface 322 are connected to the edge of the cache inner bottom wall surface 323 and are located on the same side of the cache inner bottom wall surface 323. At this time, the downstream surface 311, the first inner wall surface 321, the second inner wall surface 322, and the cache inner bottom wall surface 323 jointly define a portion of the boundary of the cache channel 300. The cache channel 300 includes an expansion section 310 and a cache section 320. The downstream surface 311 and the cache inner bottom wall surface 323 define a portion of the boundary of the expansion section 310, and the first inner wall surface 321, the second inner wall surface 322, and the cache inner bottom wall surface 323 define a portion of the boundary of the cache section 320.

[0041] The downstream surface 311 may be a plane and there are two of them, one of which intersects with the inner throttle wall surface 210 at a set angle, and the other downstream surface 311 intersects with the other inner throttle wall surface 210 at a set angle. In this case, the distance between the two downstream surfaces 311 can be defined as the cross-sectional dimension H (e.g. Fig.10 ), the minimum cross-sectional dimension H of the expansion section 310 is greater than or equal to the cross-sectional dimension h of the throttling channel 200. For example, in the direction away from the throttling channel 200, the cross-sectional dimension H of the expansion section 310 gradually increases, and for the expansion section 310 and the throttling channel 200, the cross-sectional dimensions of the two are equal only at the mutually connected parts, and the cross-sectional dimensions H of the other parts of the expansion section 310 are greater than the cross-sectional dimension h of the throttling channel 200. Of course, the cross-sectional dimension H of the expansion section 310 can be equal everywhere and greater than the cross-sectional dimension h of the throttling channel 200.

[0042] The number of the first inner wall surface 321 can be two, and the two first inner wall surfaces 321 are respectively connected to the two ends of the second inner wall surface 322, and the first inner wall surface 321 is connected between the downstream surface 311 and the second inner wall. The first inner wall surface 321 and the downstream surface 311 located on one side of the second inner wall surface 322 and connected to each other are recorded as the first whole, and the first inner wall surface 321 and the downstream surface 311 located on the other side of the second inner wall surface 322 and connected to each other are recorded as the second whole, and the first whole and the second whole are spatially symmetrically distributed about the second inner wall surface 322. Specifically, the first inner wall surface 321 includes a guide unit surface 321a and a low-lying unit surface 321b, and the low-lying unit surface 321b is directly connected to the second inner wall surface 322, and the two ends of the guide unit surface 321a are respectively connected to the low-lying unit surface 321b and the downstream surface 311. The second inner wall surface 322 can be a plane, and the low-lying unit surface 321b can be a curved surface. The second inner wall surface 322 is closer to the throttling channel 200 than the low-lying unit surface 321b. In other words, in the vertical direction, the distance from the second inner wall surface 322 to the throttling channel 200 is smaller than the low-lying unit surface 321b. It can also be generally understood that the second inner wall surface 322 is located above the low-lying unit surface 321b.

[0043] The guide unit surface 321a may be a curved surface, and the guide unit surface 321a is curved in a direction away from the expansion section 310, so that the maximum cross-sectional dimension of the buffer section 320 is larger than the cross-sectional dimension of the expansion section 310, and the cross-sectional dimension of the buffer section 320 may be defined as the distance between the two first inner sidewall surfaces 321. The guide unit surface 321a and the low-lying unit surface 321b are on the same arc surface, in other words, the entire first inner sidewall surface 321 is an arc surface.

[0044] Therefore, by providing the guide unit surface 321a and the low-lying unit surface 321b, and making the first whole and the second whole spatially symmetrically distributed about the second inner wall surface 322, the entire cache channel 300 can be roughly in a "full heart shape".

[0045] In other embodiments, the downstream surface 311 can be a plane and there are two of them, one of the downstream surfaces 311 intersects with one of the throttling inner wall surfaces 210 at a set angle, the other downstream surface 311 is coplanar with the other throttling inner wall surface 210, and the number of the first inner wall surface 321 is one. At this time, the entire cache channel 300 is roughly in the shape of a "half heart".

[0046] See also Figure 4 , Figure 5 and Figure 6In the thickness direction of the entire atomizer assembly 500, the cache inner bottom wall 323 and the throttling inner bottom wall 220 are spaced apart, and there is a certain distance D between the two, so that the throttling inner bottom wall 220 is closer to the outer surface of the atomizer assembly 500 relative to the cache inner bottom wall 323. In other words, the depression depth of the throttling inner bottom wall 220 is less than the depression depth of the cache inner bottom wall 323, which makes the depth A of the cache channel 300 greater than the depth a of the throttling channel 200. The depth a of the throttling channel 200 can range from 0.1mm to 0.5mm, for example, its specific value can be 0.1mm, 0.3mm or 0.4mm, etc. The depth A of the cache channel 300 ranges from greater than or equal to 1mm, for example, its specific value can be 1mm, 1.5mm or 2mm, etc.

[0047] See also Figure 7 For the same ventilation channel 30, when there are multiple first sub-channels 40, the multiple cache channels 300 can be arranged in a linear interval along the vertical direction, and the throttling channels 200 can be located on the same straight line. Specifically, the throttling channel 200 in the first sub-channel 40 adjacent to the liquid storage chamber 20 is connected to the liquid storage chamber 20. For two adjacent first sub-channels 40, the throttling channel 200 in one of the first sub-channels 40 passes through the second inner wall surface 322, and the second inner wall surface 322 defines a part of the boundary of the other first sub-channel 40. The second sub-channel 50 passes through the second inner wall surface 322, and the second inner wall surface 322 defines a part of the boundary of the first sub-channel 40 adjacent to the second sub-channel 50. Therefore, through the serial connection of the throttling channels 200, the cache channels 300 arranged at intervals can be connected to each other.

[0048] In some embodiments, the outer surface of the atomizer assembly 500 is recessed to a set depth to form a zigzag groove, which is covered by the housing assembly 400 to form a second sub-channel 50, and the depth of the second sub-channel 50 can be equal to the depth of the throttling channel 200, so that the depth of the second sub-channel 50 is less than the depth of the cache channel 300. For example, the depth of the second sub-channel 50 can range from 0.1 mm to 0.5 mm, and its specific value can be 0.1 mm, 0.3 mm, or 0.4 mm, etc.

[0049] See also Figure 8 When the atomizer 10 is working, the liquid in the liquid storage chamber 20 is consumed by the atomizing assembly 500 and gradually decreases. At this time, the external gas can enter the liquid storage chamber 20 through the air inlet channel 80, the atomizing chamber 70, the diversion channel 60, the second sub-channel 50, and the first sub-channel 40 in sequence, thereby avoiding the dry burning phenomenon caused by the negative pressure in the liquid storage chamber 20.

[0050] See also Fig. 9When the atomizer 10 is put aside and working, the liquid in the liquid storage chamber 20 will first enter the throttling channel 200 of the first first sub-channel 40 adjacent to the liquid storage chamber 20. Since the minimum cross-sectional dimension of the expansion section 310 is greater than or equal to the cross-sectional dimension of the throttling channel 200, under the action of the internal tension (cohesion) of the liquid itself, it is difficult for the liquid to enter the expansion section 310 with a larger cross-sectional dimension from the throttling channel 200 with a smaller cross-sectional dimension, thereby slowing down the flow rate of the liquid in the throttling channel 200 and preventing the liquid in the throttling channel 200 from quickly entering the cache channel 300, thereby reducing the total leakage of the liquid in the liquid storage chamber 20 per unit time. In addition, when the liquid flows out of the throttling channel 200, the liquid will enter the low-lying unit surface 321b along the downstream surface 311 and the guide unit surface 321a in sequence. Since the low-lying unit surface 321b is located below the second inner wall surface 322, the space defined by the low-lying unit surface 321b of the cache section 320 will play a caching role for the liquid. Considering that the guide unit surface 321a is bent in the direction away from the expansion section 310, this increases the path of the liquid from the downstream surface 311 into the low-lying unit surface 321b, thereby extending the time for the liquid to reach the low-lying unit surface 321b. Therefore, for the space defined by the low-lying unit surface 321b of the cache section 320, the time required for the liquid stored in the space to reach a saturated state is extended.

[0051] When the liquid in the space defined by the low-lying unit surface 321b of the buffer section 320 reaches saturation, the liquid surface in the space will be flush with the second inner wall surface 322. When the liquid continues to enter the space, the liquid in the space will enter the throttling channel 200 of the second first sub-channel 40 adjacent to the first first sub-channel 40. Then, it will be stored in the space defined by the low-lying unit surface 321b of the second first sub-channel 40. When the supersaturated liquid in the space will enter the third first sub-channel 40 adjacent to the second first sub-channel 40, and so on, when the leakage is sufficient, the excess leakage can flow into the last first sub-channel 40 adjacent to the second sub-channel 50. If the liquid in the last first sub-channel 40 is still in a supersaturated state, the excess liquid can also flow into the second sub-channel 50, the diversion channel 60 and the atomization chamber 70 in sequence.

[0052] Generally, for a disposable nebulizer 10, when the number of the first sub-channels 40 is large enough, the capacity of the plurality of buffer channels 300 will be large enough, and the large enough capacity will accommodate all the leaked liquid, and prevent the leaked liquid from entering the second sub-channel 50, the shunt channel 60 or the atomizing chamber 70. When too much leaked liquid from the liquid storage chamber 20 eventually enters the atomizing chamber 70 through the second sub-channel 50 and the shunt channel 60, considering that the atomizing chamber 70 also has a considerable capacity to store the leaked liquid, the leaked liquid can be prevented from overflowing from the atomizing chamber 70 to the air inlet channel 80 and leaking out of the nebulizer 10, and finally preventing the nebulizer 10 from leaking liquid. At the same time, coupled with the obstruction of the throttling channel 200 to the flow of leaked liquid, during the entire process of the liquid in the atomizer 10 being consumed, the liquid in the liquid storage chamber 20 will find it difficult to enter the ventilation channel 30, that is, the amount of leaked liquid entering the cache channel 300 is extremely small, so that the leaked liquid cached in the cache channel 300 is in an unsaturated state, and even the leaked liquid in the cache channel 300 in the first sub-channel 40 is still in an unsaturated state, thus adding another reliable line of defense against the leakage of liquid from the air inlet channel 80 to the outside of the atomizer 10.

[0053] Of course, when the proportion of liquid to be atomized in the atomizer 10 is relatively large and the shelf time is relatively short, the leakage from the liquid storage chamber 20 will be significantly reduced, ensuring that the capacity of the cache channel 300 is sufficient to accommodate the leakage, and preventing the leakage from leaking out of the atomizer 10 from the air inlet channel 80. In fact, when the number of ventilation channels 30 is constant, that is, on the basis of the constant total number of cache channels 300, the depth of the cache channel 300 can be increased, and the depth of the throttling channel 200 and the second sub-channel 50 can be reduced, thereby increasing the total capacity of the cache channel 300 for the leakage, and further preventing the leakage from leaking out of the atomizer 10 from the air inlet channel 80.

[0054] When the atomizer 10 is working, when the external gas enters the liquid storage chamber 20 through the ventilation channel 30, since the second inner wall surface 322 is higher than the liquid level of the leaked liquid stored in the cache channel 300, the gas in the second sub-channel 50 can be exempted from the obstruction of the leaked liquid and directly enter the cache channel 300. Then, since the cross-sectional size of the expansion section 310 is larger than the cross-sectional size of the throttling channel 200, the gas flow rate from the expansion section 310 into the throttling channel 200 will be significantly increased. Under the action of the high-speed airflow, the liquid in the throttling channel 200 will be quickly squeezed into the cache channel 300, thereby eliminating the obstruction of the leaked liquid in the throttling channel 200 to the airflow, so that the gas can smoothly pass through each first sub-channel 40 in turn and enter the liquid storage chamber 20. Ensure that the gas reaches the liquid storage chamber 20 quickly, and improve the smoothness of the ventilation of the atomizer 10.

[0055] In fact, when the depth of the throttle channel 200 is smaller, the friction force generated by the leaked liquid in the throttle channel 200 is smaller, so that the leaked liquid is easier to flow out of the throttle channel 200 under the action of the high-speed airflow, thereby reducing the resistance along the flow of gas in the ventilation channel 30 and improving the smoothness of ventilation of the atomizer 10. Therefore, increasing the depth of the cache channel 300 and reducing the depth of the throttle channel 200 at the same time can increase the total capacity of the cache channel 300 for the leaked liquid and prevent the leaked liquid from leaking out of the atomizer 10, and can also reduce the resistance along the flow of gas in the ventilation channel 30 to improve the smoothness of ventilation of the atomizer 10.

[0056] Moreover, the structure of the entire ventilation channel 30 is relatively simple, which can reduce the manufacturing cost of the entire atomizer 10. Therefore, the ventilation channel 30 is configured using the technical solution of the above embodiment, which can ensure that the atomizer 10 reduces the manufacturing cost and prevents liquid leakage while ensuring smooth ventilation.

[0057] The present invention also provides an electronic atomization device, which includes an atomizer 10 and a power supply, and the atomizer 10 and the power supply form a detachable connection relationship or an integral connection relationship. The power supply provides electrical energy to the atomizer 10. Due to the provision of the above-mentioned atomizer 10, it is possible to ensure smooth ventilation and reduce manufacturing costs, while preventing the leakage outside the atomizer 10 from entering the power supply and corroding it, thereby increasing the service life of the power supply and the electronic atomization device, and also eliminating the risk of explosion of the power supply due to corrosion, thereby improving the safety of the use of the power supply and the electronic atomization device.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An atomizer, characterized in that: The atomizer is provided with a liquid storage chamber and a ventilation channel, the ventilation channel includes a first sub-channel and a second sub-channel, the first sub-channel includes a throttling channel and a cache channel, the liquid storage chamber is connected to the throttling channel, the second sub-channel is connected to the cache channel and the outside, the cache channel includes an expansion section and a cache section, the two ends of the expansion section are directly connected to the throttling channel and the cache section respectively, the minimum cross-sectional size of the expansion section is greater than or equal to the cross-sectional size of the throttling channel, the cache section can store leaked liquid from the throttling channel, and the outside gas can enter the liquid storage chamber through the second sub-channel, the cache channel and the throttling channel in sequence; The buffer section is partially defined by a first inner wall surface and a second inner wall surface, the first inner wall surface includes a low-lying unit surface directly connected to the second inner wall surface, the second inner wall surface is closer to the throttling channel than the low-lying unit surface, the second sub-channel penetrates the second inner wall surface and is connected to the buffer section, and the leaked liquid is stored in the space defined by the low-lying unit surface in the buffer section; Along the direction away from the throttling channel, the cross-sectional size of the expansion section gradually increases.

2. The atomizer according to claim 1, characterized in that The number of the cache channels is multiple.

3. The atomizer according to claim 1, characterized in that The expansion section is partially defined by a downstream surface, and the first inner wall surface also includes a guide unit surface, which is connected between the downstream surface and the low-lying unit surface, and the guide unit surface is bent away from the expansion section so that the maximum cross-sectional dimension of the cache section is larger than the cross-sectional dimension of the expansion section.

4. The atomizer according to claim 3, characterized in that The guide unit surface and the low-lying unit surface are on the same arc surface.

5. The atomizer according to claim 3, characterized in that The cache channel is partially defined by two first inner wall surfaces and two downstream surfaces. The first inner wall surface and the downstream surface located on one side of the second inner wall surface and connected to each other are recorded as a first entity, and the first inner wall surface and the downstream surface located on the other side of the second inner wall surface and connected to each other are recorded as a second entity. The first entity and the second entity are symmetrically arranged with respect to the second inner wall surface.

6. The atomizer according to claim 1, characterized in that There are multiple first sub-channels, and the throttling channel of the first sub-channel adjacent to the liquid storage chamber is connected to the liquid storage chamber; for two adjacent first sub-channels, the throttling channel in one of the first sub-channels penetrates the second inner wall surface that defines the partial boundary of the other first sub-channel; the second sub-channel penetrates the second inner wall surface that defines the partial boundary of the first sub-channel adjacent to it.

7. The atomizer according to claim 1, characterized in that The throttling channel is partially defined by the throttling inner bottom wall, and the cache channel is partially defined by the cache inner bottom wall. The cache inner bottom wall and the throttling inner bottom wall are spaced apart so that the depth of the cache channel is greater than the depth of the throttling channel.

8. The atomizer according to claim 7, characterized in that The depth range of the throttling channel is 0.1 mm to 0.5 mm, and the depth range of the cache channel is greater than or equal to 1 mm.

9. The atomizer according to claim 1, characterized in that The throttling channel is a linear channel.

10. The atomizer according to claim 1, characterized in that The depth of the second sub-channel is less than the depth of the cache channel.

11. The atomizer according to claim 1, characterized in that The atomizer comprises a shell component and an atomizing component contained in the shell component and used for atomizing liquid. A ventilation groove is formed concavely on the outer surface of the atomizing component, and the ventilation groove is covered by the shell component to form the ventilation channel.

12. The atomizer according to claim 11, characterized in that The shell component is provided with an air inlet passage directly connected to the outside, the atomizer component is also provided with an atomizer chamber and a diverter hole, the atomizer chamber is directly connected to the diverter hole and the air inlet passage, the outer surface of the atomizer component includes a first surface and a second surface located in the thickness direction of the atomizer component and facing opposite directions, the first surface is provided with the ventilation groove connected to one end of the diverter hole, the second surface is provided with the ventilation groove connected to the other end of the diverter hole, the diverter hole is covered by the shell component to form a diverter channel, and the external gas enters the ventilation channel through the air inlet passage, the atomizer chamber and the diverter channel in sequence.

13. The atomizer according to claim 12, characterized in that The number of the diversion holes is two, and the two diversion holes are located at two opposite sides of the atomization chamber.

14. An electronic atomization device, characterized in that: The invention comprises a power source and the atomizer according to any one of claims 1 to 13, wherein the power source is connected to the atomizer and provides electrical energy to the atomizer.

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