Atomizer and aerosol generating device

Abstract

The embodiment of the utility model provides an atomizer and an aerosol generating device. The atomizer comprises a shell assembly and an atomizing base. A liquid storage cavity is formed in the shell assembly and used for storing an aerosol generating substrate. At least one part of the atomization base is arranged in the shell assembly, and an atomization cavity and a liquid inlet channel are formed in the atomization base. The atomization base further comprises a partition part, the partition part extends in the liquid inlet direction of the liquid inlet channel, the partition part divides the liquid inlet channel into a first channel and a second channel, one end of the first channel and one end of the second channel both communicate with the liquid storage cavity, and the other end of the first channel and the other end of the second channel both communicate with the atomization core. And the overflowing sectional area of the first channel in at least partial area of the liquid inlet channel is different from the overflowing sectional area of the second channel. Part of the liquid inlet channel is divided into two channels with different overflowing sectional areas through the separator, so that the problem of unsmooth liquid inlet of the liquid inlet channel is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomizers, in particular to an atomizer and an aerosol generating device. BACKGROUND

[0002] The aerosol generating device generally comprises an atomizer and a power component electrically connected with the atomizer. The atomizer can atomize the aerosol generating substrate stored in the liquid storage cavity under the electric driving of the power component, to form the aerosol for the user.

[0003] In the related art, when the aerosol generating device is used normally after being inverted, there is a problem that the bubbles block the liquid inlet channel, resulting in poor liquid inlet of the liquid inlet channel, which affects the user experience. Therefore, how to improve the poor liquid inlet of the liquid inlet channel is a problem that cannot be ignored. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application aims to provide an atomizer and an aerosol generating device for improving the poor liquid inlet of the liquid inlet channel and improving the user experience.

[0005] To achieve the above-mentioned purpose, the first aspect of the present application provides an atomizer, which comprises:

[0006] A housing assembly, which is internally provided with a liquid storage cavity for storing an aerosol generating substrate;

[0007] An atomizing seat, at least a part of which is arranged in the housing assembly, and the atomizing seat forms an atomizing cavity and a liquid inlet channel;

[0008] The atomizing seat further comprises a partition piece, which extends along the liquid inlet direction of the liquid inlet channel, and the partition piece divides the liquid inlet channel to form a first channel and a second channel. One end of the first channel and the second channel is communicated to the liquid storage cavity, and the other end of the first channel and the second channel is communicated to an atomizing core. The flow area of at least part of the first channel is different from the flow area of the second channel.

[0009] In an embodiment, the liquid inlet channel comprises a first liquid inlet section extending along the height direction of the atomizer; and / or,

[0010] A second liquid inlet section extending along the horizontal direction of the atomizer.

[0011] In an embodiment, along the liquid inlet direction, the flow area of at least part of the first channel is different; and / or,

[0012] Along the liquid inlet direction, the cross-sectional area of at least a part of the second channel is different.

[0013] In an embodiment, along the liquid inlet direction, the cross-sectional area of at least a part of the first channel increases; and / or,

[0014] In an embodiment, along the liquid inlet direction, the cross-sectional area of at least a part of the second channel decreases.

[0015] In an embodiment, the central axis of the liquid inlet channel is arranged at an angle with at least a part of the partition.

[0016] In an embodiment, the partition comprises a first partition section and a second partition section distributed along the liquid inlet direction, the first partition section is arranged at an end of the second partition section away from the liquid storage cavity, and the cross-sectional area of the first channel at the first partition section is greater than the cross-sectional area of the second channel at the first partition section.

[0017] In an embodiment, the first partition section and the second partition section are smoothly connected; and / or,

[0018] The cross-sectional area of the first channel at the second partition section is equal to the cross-sectional area of the second channel at the second partition section.

[0019] In an embodiment, the end surface of the partition away from the liquid storage cavity is an inclined surface.

[0020] In an embodiment, the end of the partition away from the liquid storage cavity is arranged at a distance from the wall surface of the liquid inlet channel, the distance is not less than 0.3 mm and not greater than 5 mm.

[0021] The second aspect of the embodiments of the present application provides an aerosol generating device, comprising a power supply assembly and the atomizer of any one of the above embodiments, the power supply assembly is electrically connected with the atomizer.

[0022] The atomizer provided by the embodiment of the present application separates part of the liquid inlet channel into two channels with different flow areas by the partition. The first channel and the second channel have different flow areas, which can cause a flow rate difference of the aerosol generating substrate during the flow in the two channels. The flow rate difference causes the pressure in the two channels to be in an unbalanced state, and the aerosol generating substrate is pushed from a high-pressure area to a low-pressure area, driving the movement of the aerosol generating substrate, so as to drive the movement of the bubbles in the aerosol generating substrate, break the static equilibrium state of the bubbles, reduce the situation that the bubbles stop moving after being in the equilibrium state in the liquid inlet channel, cause the blockage of the liquid inlet channel, and cause the poor liquid inlet of the liquid inlet channel. In summary, the structure design of the liquid inlet channel of the atomizer is beneficial to reduce the probability of bubble blocking the liquid inlet channel, improve the working stability and reliability of the atomizer, and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structural schematic diagram of an atomizer according to an embodiment of the present application;

[0024] Figure 2 FIG. 2 is a structural schematic diagram of a seat body according to an embodiment of the present application;

[0025] Figure 3 FIG. 3 is a structural schematic diagram of a seat body according to an embodiment of the present application;

[0026] Figure 4 FIG. 4 is a structural schematic diagram of an atomizing seat according to an embodiment of the present application;

[0027] Figure 5 FIG. 5 is a structural schematic diagram of a liquid inlet channel according to an embodiment of the present application.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 100, atomizer; 10, atomizing seat; 11, seat body; 111, atomizing cavity; 112, liquid inlet channel; 1121, opening; 1122, liquid inlet cavity; 113, partition; 1131, first partition section; 1132, second partition section; 1133, inclined surface; 114, first channel; 115, second channel; 116, first liquid inlet section; 117, second liquid inlet section; 12, sealing member; 20, shell assembly; 21, liquid storage cavity. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments in the present application and the technical features in the embodiments can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as the explanation and description of the purpose of the present application, and should not be regarded as an improper limitation of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "include," "includes" and "including" in this application are meant to be non-limiting.

[0032] In the description of the embodiments of the present application, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0033] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are "or" relationship.

[0035] In the description of the embodiments of the present application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed, operated or used in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0036] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through intervening medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the technical term "contact" should be interpreted broadly, which can be direct contact or contact through an intermediate medium layer, and can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0038] The present application provides an aerosol generating device, which comprises a power supply assembly and an atomizer according to any one of the embodiments of the present application, and the power supply assembly is electrically connected with the atomizer.

[0039] The aerosol generating device is used for atomizing an aerosol generating substrate to generate an aerosol for a user. The aerosol generating substrate includes, but is not limited to, a medicine, a material containing nicotine or a material not containing nicotine, etc. In the embodiments of the present application, the aerosol generating substrate can be a liquid material mainly made of plants (such as tobacco, etc.) and added with corresponding aerosol forming agents and aroma materials.

[0040] The power supply assembly is electrically connected with the atomizer, and is mainly used for supplying power to the atomizer and controlling the opening or closing of the entire aerosol generating device and the like.

[0041] Those skilled in the art should understand that the embodiments of the present application do not specifically limit the type of the aerosol generating device. For example, the aerosol generating device can be a medical atomization device, an air humidifier, or an electronic cigarette and the like which needs to use an atomizer.

[0042] The present application provides an atomizer 100, please refer to Figures 1 to 4The atomizer 100 comprises a housing assembly 20 and an atomizing seat 10. The housing assembly 20 is internally provided with a liquid storage cavity 21 for storing an aerosol generating substrate. At least a portion of the atomizing seat 10 is arranged in the housing assembly 20, and the atomizing seat 10 is formed with an atomizing cavity 111 and a liquid inlet passage 112. The atomizing seat 10 further comprises a partition 113 extending along the liquid inlet direction of the liquid inlet passage 112, and the partition divides the liquid inlet passage 112 into a first passage 114 and a second passage 115. The first passage 114 and the second passage 115 are both communicated to the liquid storage cavity 21 at one end, and both communicated to an atomizing wick at the other end. The cross-sectional area of the first passage 114 in at least a portion of the liquid inlet passage 112 is different from the cross-sectional area of the second passage 115.

[0043] The housing assembly 20 is internally provided with a liquid storage cavity 21, which can be defined by the housing assembly 20, or defined by the housing assembly 20 and the atomizing seat 10 together.

[0044] The housing assembly 20 is an external housing of the atomizer 100, and an air outlet passage is formed in the interior of the housing assembly 20. At least a portion of the atomizing seat 10 is arranged in the housing assembly 20.

[0045] The air outlet passage can be located in the middle region of the housing assembly 20, or located on the side of the middle region of the housing assembly 20.

[0046] In some embodiments, the top of the atomizing seat 10 and the inner side wall of the housing assembly 20 define a liquid storage cavity 21 for storing an aerosol generating substrate, and the liquid storage cavity 21 is arranged around the air outlet passage.

[0047] In other embodiments, the interior of the housing assembly 20 can also be formed with a liquid storage cavity 21.

[0048] The atomizing seat 10 has an atomizing wick, wherein the atomizing wick is a structure having an atomizing function in the atomizer 100, at least a portion of the atomizing wick is arranged in the atomizing seat 10, and an aerosol generating substrate generates an aerosol through the atomizing wick.

[0049] Exemplarily, at least a portion of the atomizing seat 10 arranged in the housing assembly 20 can mean that part of the structure of the atomizing seat 10 is arranged in the housing assembly 20, or the entire structure of the atomizing seat 10 is arranged in the housing assembly 20.

[0050] Exemplarily, the atomizing seat 10 is formed with an air inlet passage, and the air inlet passage is communicated between the outside and the atomizing cavity 111.

[0051] Exemplarily, the atomization seat 10 is formed with an atomization cavity 111 and a liquid inlet channel 112, the liquid inlet channel 112 is communicated with the liquid storage cavity 21 and the atomization cavity 111, and the atomization cavity 111 is communicated with the air outlet channel. The aerosol generating substrate in the liquid storage cavity 21 enters the atomization core through the liquid inlet channel 112 for atomization, and the aerosol formed after atomization flows together with the air flowing into the air inlet channel, flows through the air outlet channel, and is discharged to the outside through the air outlet for use by the user.

[0052] The specific structure of the atomization seat 10 is not limited here, for example, it can be an integrally formed structure, or it can be assembled from multiple parts.

[0053] The atomization cavity 111 is a space in the atomization seat 10, and the atomization cavity 111 is connected with the air outlet channel, which is where the aerosol generating substrate is atomized into fine particles. During the atomization process, the atomization cavity 111 provides the necessary space so that the aerosol generating substrate can be dispersed into fine aerosol particles by the atomization core.

[0054] The specific structure of the atomization cavity 111 is determined according to the actual situation and is not limited here.

[0055] The liquid inlet direction refers to the direction in which the aerosol generating substrate flows in the liquid inlet channel 112 under normal use of the atomizer 100, from the side of the liquid inlet channel 112 close to the liquid storage cavity 21 along the extension path of the liquid inlet channel, and points to the direction of the atomization core.

[0056] The partition 113 is used to separate part of the liquid inlet channel 112 into different parts, and plays a role in adjusting the structure and function of the liquid inlet channel 112. The partition 113 extends along the liquid inlet direction, and separates the liquid inlet channel 112 into two channels extending along the liquid inlet direction. The first channel 114 is one of the channels formed after the partition 113 separates the liquid inlet channel 112, and the second channel 115 is the other channel formed after the partition 113 separates the liquid inlet channel 112.

[0057] The form of the partition 113 is not limited here, for example, it can be an integrally formed structure with the atomization seat 10, or it can be a structure that is detachably arranged in the liquid inlet channel 112.

[0058] It can be understood that, compared with a single channel, when bubbles block one of the two channels formed by separating the liquid inlet channel 112, the other channel can still normally flow liquid, and in actual tests, there is an extremely low probability that both channels will be blocked by bubbles at the same time, and the liquid flow effect is better than that of a single channel.

[0059] The first channel 114 and the second channel 115 are at least communicated at the bottom of the liquid inlet channel 112, that is, the first channel 114 and the second channel 115 both have the function of guiding the aerosol generating substrate in the liquid storage cavity 21 to the atomization core.

[0060] The specific form of the partition 113 separating the first passage 114 and the second passage 115 is not limited here, and the partition 113 separating the first passage 114 and the second passage 115 needs to have, in a cross section perpendicular to the liquid inlet direction, at least part of the first passage 114 having a flow cross-sectional area different from that of the second passage 115.

[0061] It should be noted that the flow cross-sectional area specifically refers to the cross-sectional area of the passage perpendicular to the flow direction of the fluid (i.e., the aerosol generating substrate) flowing in the passage. Taking the first passage 114 as an example, the flow cross-sectional area of the first passage 114 refers to the area corresponding to the cross section of the first passage 114 perpendicular to the flow direction of the aerosol generating substrate when the aerosol generating substrate flows in the first passage 114.

[0062] Here, the flow cross-sectional area of the first passage 114 and the flow cross-sectional area of the second passage 115 can be different in all regions of the first passage 114 and the second passage 115. Alternatively, the flow cross-sectional area of the first passage 114 and the flow cross-sectional area of the second passage 115 can be different in part of the first passage 114, and there can also be part of the first passage 114 having the same flow cross-sectional area as the second passage 115.

[0063] The formation of the first passage 114 and the second passage 115 with different flow cross-sectional areas in at least part of the first passage 114 and the second passage 115 of the liquid inlet passage 112 is not limited here, and it can be formed by changing the shape of the liquid inlet passage 112 itself or the shape of the partition 113, or by changing the position of the partition 113 in the liquid inlet passage 112.

[0064] For example, the liquid inlet passage 112 itself has an irregular shape, and the partition plate separates the liquid inlet passage 112 to form asymmetric first and second passages 114 and 115, and in a cross section perpendicular to the liquid inlet direction, part of the first passage 114 has a flow cross-sectional area different from that of the second passage 115.

[0065] For example, the partition plate has an adjustable structure, and by changing the setting position, angle, etc. of the partition plate in the liquid inlet passage 112, it can be adjusted to have, in a cross section perpendicular to the liquid inlet direction, part of the first passage 114 having a flow cross-sectional area different from that of the second passage 115.

[0066] The atomizer 100 provided by the embodiment of the present application separates the liquid inlet channel 112 into two channels with different flow areas by the partition 113. The first channel 114 and the second channel 115 have different flow areas, which can cause a flow rate difference of the aerosol generating substrate during the flow in the two channels. The flow rate difference causes the pressure in the two channels to be in an unbalanced state, and the aerosol generating substrate is pushed from the high-pressure area to the low-pressure area, driving the movement of the aerosol generating substrate, so as to drive the movement of the bubbles in the aerosol generating substrate, break the static equilibrium state of the bubbles, reduce the situation that the bubbles stop moving after being in the equilibrium state in the liquid inlet channel 112, cause the blockage of the liquid inlet channel 112, and cause the poor liquid inlet of the liquid inlet channel 112. In summary, the structure design of the liquid inlet channel 112 of the atomizer 100 is beneficial to reduce the probability of bubble blocking the liquid inlet channel 112, improve the working stability and reliability of the atomizer 100, and improve the user experience.

[0067] In some embodiments, referring to Figure 5 , the liquid inlet channel 112 includes a first liquid inlet section 116 extending in the height direction of the atomizer 100.

[0068] The first liquid inlet section 116 is a part of the liquid inlet channel 112 extending in the height direction of the atomizer 100 (usually a direction parallel or approximately parallel to the direction of gravity). This design enables the liquid to flow into the relevant area inside the atomizer 100 in the vertical direction under the action of gravity or under the driving of a certain pressure.

[0069] Exemplarily, the partition 113 can be arranged in the first liquid inlet section 116, which reduces the possibility of large bubbles being formed in a single channel to block the channel, and makes the liquid flow more smoothly, which is beneficial to solve the problem of bubble blocking in the first liquid inlet section 116.

[0070] In some embodiments, referring to Figure 5 , the liquid inlet channel 112 includes a second liquid inlet section 117 extending in the horizontal direction of the atomizer 100.

[0071] The second liquid inlet section 117 is a part of the liquid inlet channel 112 extending in the horizontal direction (perpendicular to the direction of gravity). It can enable the liquid to be transmitted in the horizontal direction. In some special structure designs of the atomizer 100, it is used to adjust the flow path of the liquid or cooperate with other components to realize a specific liquid inlet function. For example, for a ceramic atomizing core with a capillary structure and liquid suction from the lower side, the structure design of the second liquid inlet section 117 can guide the aerosol generating substrate to the lower side of the ceramic atomizing core.

[0072] Exemplarily, the partition 113 can be arranged in the second liquid inlet section 117, so as to separate the horizontal passage, improve the bubble staying and gathering in the passage, reduce the liquid transmission obstruction caused by the bubbles, and facilitate solving the bubble blocking problem of the second liquid inlet section 117.

[0073] In some embodiments, the liquid inlet passage 112 has the first liquid inlet section 116 and the second liquid inlet section 117, and the partition 113 can be arranged in the first liquid inlet section 116 or the second liquid inlet section 117, or arranged in both of the liquid inlet sections. In this way, the bubble blocking problem in different directions of liquid inlet can be solved more comprehensively, the stability and reliability of liquid inlet can be improved, and the arrangement position and mode of the partition can be flexibly selected according to the specific structure and working requirement of the atomizer, so as to optimize the liquid inlet effect.

[0074] In some embodiments, please refer to Figures 1 to 4 , the flow area of at least part of the first passage 114 is different in the liquid inlet direction.

[0075] The flow area of at least part of the first passage 114 is different in the liquid inlet direction, for example, the flow area of all regions of the first passage 114 can be different, or the flow area of part of the regions of the first passage 114 can be different, which is not limited herein.

[0076] In some embodiments, please refer to Figures 1 to 4 , the flow area of at least part of the second passage 115 is different in the liquid inlet direction.

[0077] The flow area of at least part of the second passage 115 is different in the liquid inlet direction, for example, the flow area of all regions of the second passage 115 can be different, or the flow area of part of the regions of the second passage 115 can be different, which is not limited herein.

[0078] Since the first passage 114 and the second passage 115 are formed by the partition 113 separating the liquid inlet passage 112, the structure of the partition 113 separating the liquid inlet passage 112 directly affects the structure of the first passage 114 and the second passage 115.

[0079] The forming mode of the flow area of at least part of the first passage 114 and the second passage 115 is not limited herein. For example, the flow area can be formed by controlling the structure of the partition 113 and the liquid inlet passage 112, or by arranging an adjustable partition plate in the first passage 114 and the second passage 115.

[0080] By making the first channel 114 and the second channel 115 have different flow cross-sectional areas at different height regions, in the liquid inlet channel 112 of the atomizer 100, the cross-sectional area of the fluid passing through changes at different positions of the first channel 114 and the second channel 115 along the liquid inlet direction. In this way, the resistance experienced by the bubbles during the movement of the first channel 114 and the second channel 115 is constantly changing, and it is difficult to maintain a balanced state, which is conducive to reducing the situation that the bubbles are stuck in a balanced state in the first channel 114 and the second channel 115, and reducing the influence on the liquid flow in the liquid inlet channel 112.

[0081] In some embodiments, referring to Figures 1 to 4 , along the liquid inlet direction, the flow cross-sectional area of at least part of the first channel 114 increases. Along the liquid inlet direction, the flow cross-sectional area of at least part of the first channel 114 increases. For example, the flow cross-sectional area of all regions of the first channel 114 can increase, at which time the first channel 114 as a whole has a funnel structure; or the flow cross-sectional area of part of the first channel 114 increases, that is, part of the structure of the first channel 114 has a funnel structure. The specific structure is not limited here.

[0082] In some embodiments, referring to Figures 1 to 4 , along the liquid inlet direction, the flow cross-sectional area of at least part of the second channel 115 decreases.

[0083] Along the liquid inlet direction, the flow cross-sectional area of at least part of the second channel 115 decreases. For example, the flow cross-sectional area of all regions of the second channel 115 can decrease, at which time the second channel 115 as a whole has a funnel structure; or the flow cross-sectional area of part of the second channel 115 decreases, that is, part of the structure of the second channel 115 has a funnel structure. The specific structure is not limited here.

[0084] Here, for the convenience of description, the positional relationship between the first channel 114 and the second channel 115 in the embodiments of the present application is as shown in Figures 2 to 4 . It should be noted that the positional relationship between the first channel 114 and the second channel 115 is not limited in the embodiments.

[0085] For example, Figure 3 , the first channel 114 is located on the left side of the second channel 115, and in other embodiments, the first channel 114 can be located on the right side of the second channel 115.

[0086] Exemplarily, along the liquid inlet direction, the flow area of at least part of the first channel 114 increases while the flow area of at least part of the second channel 115 decreases. Of course, it can also be that along the liquid inlet direction, the flow area of at least part of the first channel 114 increases while the flow area of the second channel 115 remains unchanged. Correspondingly, it can be that along the liquid inlet direction, the flow area of at least part of the second channel 115 decreases while the flow area of the first channel 114 remains unchanged.

[0087] Taking the first channel 114 as an example, in some embodiments, a plurality of gradient regions are arranged in the first channel 114 to make the increase of the flow area more smooth and continuous. For example, the channel is divided into a plurality of small regions, and the flow area of each region is larger than that of the previous region along the liquid inlet direction, thereby forming a gradually increasing gradient. Similarly, the second channel 115 can be oppositely changed along the liquid inlet direction, which will not be described here.

[0088] By designing the first channel 114 and / or the second channel 115 to have a changing trend of the flow area of at least part of the region along the liquid inlet direction, the flow area of the gas bubbles changes during the movement of the gas bubbles in the first channel 114 and / or the second channel 115, thereby changing the resistance received by the gas bubbles during the movement of the gas bubbles in the first channel 114 and / or the second channel 115, and the structure is simple.

[0089] In some embodiments, referring to Figures 1 to 4 , the central axis of the liquid inlet channel 112 is arranged at an angle with at least part of the region of the partition 113.

[0090] Here, at least part of the region of the partition 113 is arranged at an angle, that is, in the liquid inlet channel 112, part of the partition 113 is arranged obliquely. Since the volume of the liquid inlet channel 112 is fixed, the part of the partition 113 arranged obliquely separates the first channel 114 and the second channel 115, and in the oblique region, the flow area of the first channel 114 and the flow area of the second channel 115 of at least part of the region of the liquid inlet channel 112 in the cross section perpendicular to the liquid inlet direction are different.

[0091] The angle at which the central axis of the liquid inlet channel 112 is arranged at an angle with at least part of the region of the partition 113 is not limited here and is determined according to the actual situation.

[0092] In some embodiments, the partition 113 is a plate-shaped structure, the partition 113 is arranged at an angle with the central axis of the liquid inlet channel 112 as a whole, and the partition 113 is obliquely arranged in the liquid inlet channel 112, so that the flow area of the first channel 114 and the flow area of the second channel 115 of the liquid inlet channel 112 in the cross section perpendicular to the liquid inlet direction are different.

[0093] By setting the axis of the liquid inlet channel 112 at an angle to at least part of the partition 113, the angle of the partition 113 to the axis can be changed to form a structure in which the cross-sectional area of the first channel 114 is different from the cross-sectional area of the second channel 115 in a cross section perpendicular to the liquid flow direction, without the need to change the shape of the partition 113 or the shape of the liquid inlet channel 112, which is simple to set up and helps to reduce production costs.

[0094] In some embodiments, referring to Figures 1 to 4 , the partition 113 includes a first partition section 1131 and a second partition section 1132 distributed along the liquid inlet direction. The first partition section 1131 is arranged at the end of the second partition section 1132 away from the liquid storage cavity 21, and the cross-sectional area of the first channel 114 at the first partition section 1131 is greater than the cross-sectional area of the second channel 115 at the first partition section 1131.

[0095] The second partition section 1132 is part of the partition 113 and is located close to the liquid storage cavity 21. The aerosol generating substrate in the liquid storage cavity 21 is separated by the second partition section 1132 and enters the first channel 114 and the second channel 115 respectively.

[0096] The first partition section 1131 is another part of the partition 113 and is located close to the atomization cavity 111 or at the end away from the liquid storage cavity 21, further divides the liquid inlet channel 112, and forms the first channel 114 and the second channel 115 with different structures.

[0097] Here, the cross-sectional area of the first channel 114 at the first partition section 1131 is greater than the cross-sectional area of the second channel 115 at the first partition section 1131 by changing the structure of the first partition section 1131.

[0098] The specific form in which the first partition section 1131 makes the cross-sectional area of the first channel 114 at the first partition section 1131 greater than the cross-sectional area of the second channel 115 at the first partition section 1131 is not limited here, for example, it can be achieved by changing the surface shape of the first partition section 1131 to form the first channel 114 and the second channel 115 respectively, or it can be achieved by controlling the distance between the first partition section 1131 and the liquid inlet channel 112 walls on the two opposite sides.

[0099] The partition 113 can be connected to the atomization seat 10 through the first partition section 1131, or it can be connected to the atomization seat 10 through the second partition section 1132, which is not limited here.

[0100] It should be noted here that the first channel 114 refers to the flow area at the first partition segment 1131 being larger than the flow area of the second channel 115 at the first partition segment 1131. This naming is only for the convenience of distinguishing and explaining, and those skilled in the art should understand that there is no distinction in order or importance.

[0101] By setting the first partition segment 1131 and the second partition segment 1132, and by controlling the structure of the first partition segment 1131 to form the first channel 114 and the second channel 115 with different structures, the formation of the first channel 114 and the second channel 115 is facilitated, and the production cost is reduced.

[0102] In some embodiments, referring to Figures 1 to 4 , the first partition segment 1131 and the second partition segment 1132 are smoothly connected.

[0103] Smooth connection means that the connection part of the first partition segment 1131 and the second partition segment has no obvious corners, protrusions or discontinuous places, and the connection transition is natural and smooth. This connection means that there is no uneven area that can hinder the flow of liquid or cause local pressure changes at the connection of the two partition segments. Smooth connection can ensure that the aerosol generating substrate can flow smoothly when passing through different parts of the partition 113. In this way, it is beneficial to increase the smoothness of the bubbles when moving in the first channel 114 or the second channel 115, and to reduce the probability of the bubbles being stuck by the structure of the partition 113.

[0104] In some embodiments, referring to Figures 1 to 4 , the flow area of the first channel 114 at the second partition segment 1132 is equal to the flow area of the second channel 115 at the second partition segment 1132.

[0105] Exemplarily, the liquid inlet channel 112 is a symmetrical structure, and the flow area of the first channel 114 at the second partition segment 1132 is equal to the flow area of the second channel 115 at the second partition segment 1132. That is, the second partition segment 1132 is located at the middle position of the liquid inlet channel 112, and the liquid inlet channel 112 is divided into the first channel 114 and the second channel 115 with the same flow area by the partition 113 at the second partition segment 1132.

[0106] By making the flow areas of the first channel 114 and the second channel 115 equal at the second partition segment 1132, the design is more concise. This is beneficial to simplify the mold setting in the integral molding process and reduce the difficulty of production and maintenance.

[0107] In some embodiments, referring to Figures 1 to 4 , the end surface of the partition 113 away from the liquid storage cavity 21 is a bevel 1133.

[0108] The inclination angle of the inclined surface 1133 is not limited here and can be determined according to actual conditions.

[0109] In some embodiments, the flow characteristics of the aerosol generating substrate on the inclined surface 1133 can also be changed by setting special textures and structures on the inclined surface 1133. For example, sharp protruding structures can also be set on the inclined surface 1133, which is conducive to the separation of large bubbles into smaller bubbles.

[0110] In some embodiments, the inclined surface 1133 is also coated with a hydrophobic material to reduce the adhesion of the aerosol generating substrate on the inclined surface 1133, which affects the separation effect of the inclined surface 1133 on the bubbles.

[0111] The setting of the inclined surface 1133 can separate the large bubbles that are easy to get stuck from the bottom of the liquid inlet channel 112 into small bubbles that are easy to flow and float from the first channel 114 and the second channel 115, respectively, which is conducive to solving the problem of bubbles getting stuck in the liquid inlet channel 112.

[0112] In some embodiments, the end of the partition 113 away from the liquid storage cavity 21 is spaced apart from the wall surface of the liquid inlet channel 112.

[0113] Here, the end of the partition 113 away from the liquid storage cavity 21 is not in direct contact with the wall surface of the liquid inlet channel 112, but is spaced apart by a certain distance. Such a design makes the partition 113 not completely connected with the wall surface of the liquid inlet channel 112 in the liquid inlet channel 112, thereby forming a gap between the end of the partition 113 away from the liquid storage cavity 21 and the wall surface of the liquid inlet channel 112.

[0114] By spacing the end of the partition 113 away from the liquid storage cavity 21 from the wall surface of the liquid inlet channel 112 to form a gap, the resistance of the liquid during flow is reduced. When the liquid passes through the liquid inlet channel 112, there is no local turbulence or blockage caused by the direct connection of the partition 113 with the wall surface of the liquid inlet channel 112. This allows the liquid to flow more smoothly and improves the liquid inlet efficiency. It avoids the blockage caused by the impurities or precipitates that may accumulate between the end of the partition 113 away from the liquid storage cavity 21 and the wall surface of the liquid inlet channel 112. The spacing allows these impurities to have more space to be carried away by the liquid, reducing the risk of blockage. At the same time, the spacing also makes the first channel 114 and the second channel 115 communicate at the end away from the liquid storage cavity 21, and the aerosol generating substrate can flow from one channel to another at the bottom, to push the bubbles in the channel with bubbles to float up.

[0115] In some embodiments, referring to Figures 1 to 4 , the end of the partition 113 away from the liquid storage cavity 21 is spaced apart from the wall surface of the liquid inlet channel 112 by a distance not less than 0.3 mm and not more than 5 mm.

[0116] The interval distance is not less than 0.3mm and not more than 5mm, for example, it can be 0.3mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc.

[0117] The gap distance between the bottom end of the partition 113 and the bottom wall of the liquid channel is set within the above range, which is beneficial to the flow of the aerosol generating substrate between the two channels through the gap without affecting the shunt effect of the first channel 114 and the second channel 115.

[0118] In some embodiments, referring to Figures 1 to 4 The atomization seat 10 includes a seat body 11 and a sealing member 12. The seat body 11 has a liquid inlet cavity 1122 and an opening 1121 communicating with the liquid inlet cavity 1122. The opening 1121 penetrates the circumferential side wall of the seat body 11. At least part of the sealing member 12 is arranged on the circumferential side wall of the seat body 11 and seals the opening 1121. The sealing member 12 and the liquid inlet cavity 1122 define a liquid inlet channel 112.

[0119] The liquid inlet cavity 1122 is a space formed on the seat body 11. One end of the liquid inlet cavity 1122 communicates with the liquid storage cavity 21, and the other end communicates with the atomization cavity 111.

[0120] The specific structure of the liquid inlet cavity 1122 is not limited here and is determined according to actual conditions.

[0121] The opening 1121 is a structure that communicates the liquid inlet cavity 1122 with the outside of the seat body 11. The opening 1121 is arranged such that the liquid inlet cavity 1122 is an open structure, which is beneficial to demolding during the molding of the seat body 11.

[0122] At least part of the sealing member 12 is arranged on the circumferential side wall of the seat body 11 and seals the opening 1121. In this way, the sealing member 12 and the liquid inlet cavity 1122 can jointly constitute a sealed liquid inlet channel 112. The sealing of the opening 1121 by the sealing member 12 is beneficial to reducing the possibility of leakage of the aerosol generating substrate in the liquid inlet channel 112.

[0123] Here, the liquid inlet channel 112 is formed by the liquid inlet cavity 1122 and the sealing member 12. The liquid inlet cavity 1122 has an opening 1121 extending radially along the atomization cavity 111 to the outside of the seat body 11. On the one hand, this is beneficial to the molding and demolding of the liquid inlet channel 112. On the other hand, it is also beneficial to the one-piece molding of the partition 113 and the seat body 11 and the demolding after the molding, thereby reducing the number of parts and production costs.

[0124] In the description of the application, the description of the terms "in an embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referring to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the application can be implemented in any suitable combination of hardware and / or software for any real or theoretical computer system dependent on the particular needs and requirements of the application being implemented. Moreover, the different embodiments or examples of the application can be combined with each other and / or combined with the features of the different embodiments or examples without departing from the scope of the application.

[0125] The above description is merely illustrative of the application, and is not intended to limit the application. The application can be modified and varied in various ways, and it is therefore intended that the application encompass all such modifications and variations as fall within the scope of the application. Any modification or equivalent arrangement made during the life of the application shall be covered by the application.

Claims

1. An atomizer characterized by, The atomizer comprises: a housing assembly, which is internally provided with a liquid storage cavity for storing an aerosol generating substrate; an atomization seat, at least a portion of which is arranged in the housing assembly, the atomization seat being formed with an atomization cavity and a liquid inlet channel; wherein the atomization seat further comprises a partition piece extending along a liquid inlet direction of the liquid inlet channel, the partition piece separating the liquid inlet channel to form a first channel and a second channel, one end of each of the first channel and the second channel being communicated to the liquid storage cavity, and the other end of each of the first channel and the second channel being communicated to an atomization core; the flow area of at least a portion of the first channel is different from the flow area of at least a portion of the second channel.

2. The atomizer of claim 1, wherein, The liquid inlet channel comprises a first liquid inlet section extending along a height direction of the atomizer; and / or, a second liquid inlet section extending along a horizontal direction of the atomizer.

3. The atomizer of claim 2, wherein, Along the liquid inlet direction, the flow area of at least a portion of the first channel is different; and / or, Along the liquid inlet direction, the flow area of at least a portion of the second channel is different.

4. The atomizer of claim 3, wherein, Along the liquid inlet direction, the flow area of at least a portion of the first channel increases; and / or, Along the liquid inlet direction, the flow area of at least a portion of the second channel decreases.

5. The atomizer of claim 1, wherein, A central axis of the liquid inlet channel is arranged at an angle with at least a portion of the partition piece.

6. The atomizer of claim 1, wherein, The partition piece comprises a first partition section and a second partition section distributed along the liquid inlet direction, the first partition section being arranged at an end of the second partition section away from the liquid storage cavity, and the flow area of the first channel at the first partition section being greater than the flow area of the second channel at the first partition section.

7. The atomizer of claim 6, wherein, The first partition section and the second partition section are smoothly connected; and / or, The flow area of the first channel at the second partition section is equal to the flow area of the second channel at the second partition section.

8. The atomizer of any of claims 1-7, wherein, An end face of the partition piece away from the liquid storage cavity is an inclined face.

9. The atomizer of any of claims 1-7, wherein, An end of the partition piece away from the liquid storage cavity is arranged at a distance from a wall surface of the liquid inlet channel, the distance being not less than 0.3 mm and not more than 5 mm.

10. An aerosol-generating device comprising: The atomizer comprises a power supply assembly and the atomizer according to any one of claims 1-9, the power supply assembly being electrically connected to the atomizer.

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