Atomizer and electronic atomization device

Abstract

The present application relates to an atomizer and an electronic atomization device, the atomizer comprising: a shell; a support arranged in the shell, the support and the shell defining a liquid storage cavity therebetween, and the support being provided with a liquid inlet channel communicating with the liquid storage cavity; and a heating element arranged in the shell and communicating with the liquid storage cavity through the liquid inlet channel; wherein a first flow guide groove is formed on the top surface of the support facing the liquid storage cavity, and the first flow guide groove communicates with the liquid inlet channel. When the remaining aerosol generating substrate in the liquid storage cavity is small, or when the atomizer is placed horizontally, the aerosol generating substrate in the liquid storage cavity can be guided into the liquid inlet channel by the first flow guide groove, and finally flow to the heating element facing the liquid inlet channel, and the heating element generates heat to heat the atomized aerosol generating substrate. Moreover, the first flow guide groove forms a capillary phenomenon, which can guide a small amount of aerosol generating substrate into the liquid inlet channel, fully supply the heating element with liquid, prevent the heating element from drying out, and prevent waste of the aerosol generating substrate.

Description

TECHNICAL FIELD

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

[0002] An aerosol is a colloidal dispersion system formed by dispersing and suspending small particles of solid or liquid in a gaseous medium. Since the aerosol can be absorbed by the human body through the respiratory system, it provides a new type of alternative absorption method for users. For example, an electronic atomization device that heats a liquid or solid aerosol generating substrate to generate an aerosol is applied in different fields to deliver an inhalable aerosol to users, replacing conventional product forms and absorption methods.

[0003] Generally, an electronic atomization device atomizes an aerosol generating substrate, which is a substrate material that can generate an aerosol after atomization. As the electronic atomization device is continuously sucked, the aerosol generating substrate stored in the electronic atomization device will gradually decrease. When the remaining amount of the aerosol generating substrate is small after being sucked, or when the electronic atomization device is placed flat, the aerosol generating substrate cannot be fully introduced into the heating element, resulting in dry burning and charring of the heating element. SUMMARY

[0004] Therefore, it is necessary to provide an atomizer and an electronic atomization device to solve the problem that the aerosol generating substrate may not be fully introduced into the heating element.

[0005] An atomizer, comprising:

[0006] a housing;

[0007] a support arranged in the housing, a liquid storage cavity being defined between the support and the housing, and a liquid inlet channel being formed in the support and communicating with the liquid storage cavity; and

[0008] a heating element arranged in the housing and communicating with the liquid storage cavity through the liquid inlet channel.

[0009] The top surface of the support facing the liquid storage cavity is provided with a first flow guide groove, and the first flow guide groove communicates with the liquid inlet channel.

[0010] In the above atomizer, a first flow guide groove is formed on the top surface of the support, and the first flow guide groove is communicated between the liquid storage cavity and the liquid inlet channel. When the aerosol generating substrate remaining in the liquid storage cavity is small or when the atomizer is placed horizontally, the aerosol generating substrate in the liquid storage cavity can enter the liquid inlet channel under the guidance of the first flow guide groove, and finally flow to the heating element facing the liquid inlet channel, and the heating element generates heat to heat the atomized aerosol generating substrate. Moreover, the first flow guide groove forms a capillary phenomenon, which can guide a small amount of aerosol generating substrate into the liquid inlet channel to fully supply the heating element with liquid, prevent the heating element from being dry-burned, and prevent the aerosol generating substrate from being wasted.

[0011] In one of the embodiments, the liquid inlet channel includes a transition hole and a liquid inlet hole communicated with each other, the transition hole is communicated with the liquid storage cavity, and the liquid inlet hole is communicated with the heating element; the transition hole has a hole wall that is at least partially inclined from the liquid storage cavity toward the liquid inlet hole.

[0012] In one of the embodiments, an atomization cavity is formed in the support, and an air outlet hole is formed in the support and communicated with the atomization cavity.

[0013] The transition hole and the top surface extend around the outer periphery of the air outlet hole, the first flow guide groove extends around the circumference of the air outlet hole and is communicated with opposite ends of the circumference of the transition hole.

[0014] In one of the embodiments, the first flow guide groove includes a first sub-flow guide groove and a third sub-flow guide groove, the first sub-flow guide groove is formed to extend around the circumference of the air outlet hole, and the third sub-flow guide groove is communicated with the first sub-flow guide groove.

[0015] In one of the embodiments, the first sub-flow guide groove includes a plurality of sub-flow guide grooves spaced apart along the radial direction of the air outlet hole, and the third sub-flow guide groove includes a plurality of sub-flow guide grooves spaced apart along the circumferential direction of the air outlet hole.

[0016] In one of the embodiments, a second flow guide groove is formed on the inner wall of the transition hole, and the second flow guide groove is communicated between the first flow guide groove and the liquid inlet hole.

[0017] In one of the embodiments, the second flow guide groove includes a second sub-flow guide groove and a fourth sub-flow guide groove, the second sub-flow guide groove is communicated with one end of the circumference of the first flow guide groove and the liquid inlet hole, and the fourth sub-flow guide groove is communicated with the other end of the circumference of the first flow guide groove and the liquid inlet hole.

[0018] In one of the embodiments, the side wall of the transition hole comprises a first sub-side wall and a second sub-side wall, the first sub-side wall is connected between one end of the first flow guide groove in the circumferential direction and the liquid inlet hole, and the second sub-side wall is connected between the other end of the first flow guide groove in the circumferential direction and the liquid inlet hole, and the second sub-flow guide groove and the fourth sub-flow guide groove are respectively arranged on the first sub-side wall and the second sub-side wall.

[0019] In one of the embodiments, in the direction of the top surface pointing to the liquid inlet hole, the cross-sectional area of the transition hole gradually decreases from large to small.

[0020] In one of the embodiments, the bracket comprises a bracket body and a sealing element, the bracket body is sleeved in the shell, the sealing element is sleeved at one end of the bracket body, and the sealing element and the shell define the liquid storage cavity therebetween;

[0021] In one of the embodiments, the bracket body is provided with the transition hole and the liquid inlet hole, the surface of the sealing element facing the liquid storage cavity is the top surface, the top surface is provided with the first flow guide groove, and the sealing element is provided with a through hole in communication with the transition hole.

[0022] In one of the embodiments, the gas outlet hole comprises a first gas outlet hole and a second gas outlet hole, the bracket body is internally formed with an atomization cavity, the bracket body is provided with the first gas outlet hole in communication with the atomization cavity, and the sealing element is provided with the second gas outlet hole in communication with the first gas outlet hole.

[0023] In one of the embodiments, on the top surface of the sealing element, the through hole is arranged to extend around part of the outer periphery of the second gas outlet hole, and the first flow guide groove is arranged to extend around the other part of the outer periphery of the second gas outlet hole.

[0024] In one of the embodiments, the bracket body comprises a first bracket and a second bracket, the first bracket is provided with the transition hole, the liquid inlet hole and the first gas outlet hole, and the second bracket is matched with the first bracket.

[0025] The heating element is arranged on the first bracket and defines the atomization cavity together with the second bracket.

[0026] An electronic atomization device comprises a power supply and the above-mentioned atomizer, and the power supply supplies power to the atomizer. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural schematic diagram of a bracket in an atomizer according to an embodiment of the present application;

[0028] Figure 2 FIG. 2 is a sectional schematic diagram of an atomizer according to an embodiment of the present application;

[0029] Figure 3 for Figure 1 a cross-sectional view of the bracket shown in FIG. 1;

[0030] Figure 4 for Figure 3 an exploded view of the bracket shown in FIG. 1.

[0031] BRIEF DESCRIPTION OF DRAWINGS 100, atomizer; 10, shell; 11, liquid storage cavity; 13, air outlet passage; 30, bracket; 31, liquid inlet passage; 312, transition hole; 314, liquid inlet hole; 32, bracket body; 321, first bracket; 323, second bracket; 33, first flow guide groove; 332, first sub-flow guide groove; 334, third sub-flow guide groove; 34, sealing element; 341, through hole; 35, second flow guide groove; 352, second sub-flow guide groove; 354, fourth sub-flow guide groove; 37, atomization cavity; 38, air outlet hole; 381, first air outlet hole; 382, second air outlet hole; 50, heating element. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the scope of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] See Figures 1-3 In one embodiment of the present invention, an atomizer 100 is provided, including a housing 10, a support 30, and a heating element 50. The support 30 is disposed within the housing 10, and a liquid storage chamber 11 is defined between the support 30 and the housing 10. The liquid storage chamber 11 is used to store an aerosol generating matrix. The heating element 50 is disposed within the housing 10 and is used to heat and atomize the aerosol generating matrix to form an aerosol for the user to inhale and consume.

[0039] Further, the support 30 is provided with a liquid inlet channel 31 which is in communication with the liquid storage cavity 11, and the heating element 50 is arranged in the housing 10 and is in communication with the liquid storage cavity 11 through the liquid inlet channel 31. The top surface of the support 30 facing the liquid storage cavity 11 is provided with a first flow guide groove 33 which is in communication with the liquid inlet channel 31. The first flow guide groove 33 is arranged on the top surface of the support 30 and is in communication between the liquid storage cavity 11 and the liquid inlet channel 31. When the amount of aerosol generating substrate remaining in the liquid storage cavity 11 is small, or when the atomizer 100 is placed horizontally, the aerosol generating substrate in the liquid storage cavity 11 can be guided into the liquid inlet channel 31 by the first flow guide groove 33, and finally flows to the heating element 50 facing the liquid inlet channel 31, and the heating element 50 generates heat to heat the atomized aerosol generating substrate. Further, the first flow guide groove 33 forms a capillary phenomenon, which can guide a small amount of aerosol generating substrate into the liquid inlet channel 31 to sufficiently supply the heating element 50 with liquid, prevent the heating element 50 from being dry-burned, and prevent waste of the aerosol generating substrate.

[0040] In some embodiments, the liquid inlet channel 31 includes a transition hole 312 and a liquid inlet hole 314 which are in communication with each other. The transition hole 312 is in communication with the liquid storage cavity 11, and the liquid inlet hole 314 is in communication with the heating element 50. That is, the transition hole 312 faces the liquid storage cavity 11, and the liquid inlet hole 314 is located at an end of the transition hole 312 away from the liquid storage cavity 11 in the axial direction and faces the heating element 50. Further, the transition hole 312 has a hole wall which is at least partially inclined towards the liquid inlet hole 314 from the liquid storage cavity 11, so as to guide the aerosol generating substrate in the liquid storage cavity 11 to flow along the inclined hole wall to the liquid inlet hole 314. In this embodiment, the projection of the transition hole 312 towards the liquid inlet hole 314 covers and exceeds the liquid inlet hole 314, that is, the opening of the transition hole 312 is larger than that of the liquid inlet hole 314. In this way, the liquid inlet hole 314 is arranged at the bottom of the transition hole 312, and the opening of the transition hole 312 is larger, so that more aerosol generating substrate can be guided to flow to the liquid inlet hole 314 through the transition hole 312 with a larger opening, and the aerosol generating substrate can be further guided to flow to the heating element 50.

[0041] Further, the inner wall of the transition hole 312 is provided with a second flow guide groove 35 which is in communication between the first flow guide groove 33 and the liquid inlet hole 314. In this way, not only is the first flow guide groove 33 facing the liquid storage cavity 11 arranged on the top surface of the support 30, but also the second flow guide groove 35 which is in communication with the first flow guide groove 33 is arranged on the inner wall of the transition hole 312, which is equivalent to that the first flow guide groove 33 and the second flow guide groove 35 are in communication to form a total flow guide groove. The flow guide grooves are arranged on the entire flow path of the aerosol generating substrate flowing from the liquid storage cavity 11 to the liquid inlet hole 314, so as to more smoothly guide the aerosol generating substrate to flow to the liquid inlet hole 314.

[0042] In some embodiments, the bracket 30 is formed with an atomization cavity 37, and the bracket 30 is provided with an air outlet hole 38 in communication with the atomization cavity 37. When the heating element 50 is in operation, the aerosol formed by atomization enters the atomization cavity 37 and finally flows to the outside from the air outlet hole 38 for the user to smoke.

[0043] Further, the transition hole 312 is arranged around the outer periphery of the air outlet hole 38, and the first flow guide groove 33 extends around the circumference of the air outlet hole 38 and is connected to the opposite ends of the circumference of the transition hole 312. For example, the transition hole 312 and the first flow guide groove 33 are arranged on the two sides of the air outlet hole 38 in the radial direction, or the transition hole 312 is arranged on one side of the air outlet hole 38 in the radial direction, and the first flow guide groove 33 is arranged on the other side of the air outlet hole 38 in the radial direction and the outer periphery of the transition hole 312, so that the transition hole 312 and the first flow guide groove 33 cover the top surface around the outer periphery of the air outlet hole 38. More first flow guide grooves 33 can be arranged on the positions of the top surface where the transition hole 312 and the air outlet hole 38 are not arranged, so as to ensure the coverage area of the first flow guide groove 33 and improve the liquid guiding effect. Moreover, the first flow guide groove 33 is connected to the opposite ends of the circumference of the transition hole 312, so that the first flow guide groove 33 can guide the aerosol-generating substrate to flow to any one end of the circumference of the transition hole 312, increase the flow path of the aerosol-generating substrate, and facilitate the guiding of the aerosol-generating substrate into the liquid inlet hole 314.

[0044] Still further, the first flow guide groove 33 includes a first sub-flow guide groove 332 and a third sub-flow guide groove 334. The first sub-flow guide groove 332 extends around the axial direction of the air outlet hole 38, and the second sub-flow guide groove 352 intersects and communicates with the first sub-flow guide groove 332. In this way, the first flow guide groove 33 is arranged to intersect and extend in different directions, so as to guide the aerosol-generating substrate from multiple directions and further guide the aerosol-generating substrate to flow to the transition hole 312 and the heating element 50. Alternatively, the third sub-flow guide groove 334 extends in the radial direction of the air outlet hole 38, so as to guide the aerosol-generating substrate to flow in the radial direction and finally flow into the transition hole 312 through the first sub-flow guide groove 332.

[0045] Still alternatively, the first sub-flow guide groove 332 includes a plurality of grooves arranged in the radial direction of the air outlet hole 38, and the third sub-flow guide groove 334 includes a plurality of grooves arranged in the circumferential direction of the air outlet hole 38. In this way, the first flow guide groove 33 is formed in a grid shape, so as to ensure the liquid guiding effect.

[0046] Specifically to the present embodiment, the shell 10 has an air outlet passage 13 located at the radial center of the shell 10, the air outlet hole 38 is in communication with the air outlet passage 13, the air outlet hole 38 is formed at the center of the support 30, the heating element 50 is arranged at the radial side of the air outlet hole 38, and the heating element 50 does not interfere with the air outlet hole 38. And, the liquid inlet hole 314 and the transition hole 312 are arranged at the radial side of the air outlet hole 38 corresponding to the heating element 50, so as to supply liquid to the heating element 50 by using the liquid inlet passage 31 formed by the liquid inlet hole 314 and the transition hole 312 in communication.

[0047] In some embodiments, the second flow guide groove 35 includes a second sub-flow guide groove 352 and a fourth sub-flow guide groove 354, the second sub-flow guide groove 352 is in communication with the liquid inlet hole 314 at one end of the first flow guide groove 33 in the circumferential direction, and the fourth sub-flow guide groove 354 is in communication with the liquid inlet hole 314 at the other end of the first flow guide groove 33 in the circumferential direction. That is, the second sub-flow guide groove 352 and the fourth sub-flow guide groove 354 are arranged at the opposite sides of the first flow guide groove 33 in the circumferential direction, respectively, and the three are in communication to form a complete flow guide groove. The aerosol generating substrate can flow from the first flow guide groove 33 to the second sub-flow guide groove 352 and then enter the liquid inlet hole 314, or flow from the first flow guide groove 33 to the fourth sub-flow guide groove 354 and then flow to the liquid inlet hole 314. In this way, the aerosol generating substrate can be further guided to flow from the opposite ends of the first flow guide groove 33 in the circumferential direction, and the aerosol generating substrate can be further ensured to flow sufficiently.

[0048] Further, the side wall of the transition hole 312 includes a first sub-side wall and a second sub-side wall, the first sub-side wall is inclinedly connected between the first flow guide groove 33 at one end in the circumferential direction and the liquid inlet hole 314, and the second sub-side wall is inclinedly connected between the first flow guide groove 33 at the other end in the circumferential direction and the liquid inlet hole 314. Because the opening of the transition hole 312 is larger than the opening of the liquid inlet hole 314, by arranging the inclined first sub-side wall and the second sub-side wall, the smooth transition of the transition hole 312 to the liquid inlet hole 314 is realized, and the smooth flow of the aerosol generating substrate is ensured. And, the second sub-flow guide groove 352 and the fourth sub-flow guide groove 354 are respectively arranged on the first sub-side wall and the second sub-side wall. In this way, the flow guide grooves are arranged on the inclined side wall, and the aerosol generating substrate can flow along the second sub-flow guide groove 352 and the fourth sub-flow guide groove 354 under the action of its own gravity, and the liquid guiding effect is ensured.

[0049] In some embodiments, in the direction of the top surface pointing to the liquid inlet hole 314, the cross-sectional area of the transition hole 312 gradually changes from large to small, that is, the opening of the transition hole 312 is largest on the top surface, and then gradually decreases. In this way, more aerosol generating substrate is allowed to flow from the transition hole 312 to the liquid inlet hole 314, and the flow of the aerosol generating substrate is facilitated.

[0050] Referring to Figures 2-4In some embodiments, the bracket 30 includes a bracket body 32 and a sealing member 34, the bracket body 32 is sleeved in the shell 10, and the sealing member 34 is sleeved at one end of the bracket body 32, and a liquid storage cavity 11 is defined between the sealing member 34 and the shell 10. The bracket body 32 is provided with a transition hole 312 and a liquid inlet hole 314, the surface of the sealing member 34 facing the liquid storage cavity 11 is a top surface, the top surface is provided with a first flow guide groove 33, and the sealing member 34 is provided with a through hole 341 communicating with the transition hole 312, so that the through hole 341, the transition hole 312 and the liquid inlet hole 314 communicate to form a liquid inlet channel 31. Moreover, the first flow guide groove 33 on the top surface of the sealing member 34 guides the aerosol generating substrate to flow to the liquid inlet channel 31, so that the aerosol generating substrate can be fully liquidized, the heating element can be prevented from being dry-burned, and the aerosol generating substrate can be prevented from being wasted.

[0051] Further, the gas outlet hole 38 includes a first gas outlet hole 381 and a second gas outlet hole 382, the bracket body 32 is internally formed with an atomization cavity 37, the bracket body 32 is provided with the first gas outlet hole 381 communicating with the atomization cavity 37, and the sealing member 34 is provided with the second gas outlet hole 382 communicating with the first gas outlet hole 381, the second gas outlet hole 382 and the first gas outlet hole 381 correspondingly communicate to form the gas outlet hole 38, and the aerosol generated by the heating element flows from the atomization cavity 37 to the second gas outlet hole 382 and then flows out from the first gas outlet hole 381.

[0052] Moreover, on the top surface of the sealing member 34, the through hole 341 extends around part of the outer periphery of the second gas outlet hole 382, and the first flow guide groove 33 extends around the other part of the outer periphery of the second gas outlet hole 382. That is, the first flow guide groove 33 is formed around the second gas outlet hole 382 on the top surface of the sealing member 34, the through hole 341 is formed on one side of the second gas outlet hole 382 on the top surface of the sealing member 34 to form the liquid inlet channel 31, and the first flow guide groove 33 is formed on the other side of the second gas outlet hole 382 on the top surface of the sealing member 34 to make the aerosol generating substrate flow and liquidize fully.

[0053] Specifically, the bracket body 32 includes a first bracket 321 and a second bracket 323, the first bracket 321 is provided with the transition hole 312, the liquid inlet hole 314 and the first gas outlet hole 381, the second bracket 323 is connected with the first bracket 321, the heating element 50 is arranged on the first bracket 321 and forms the atomization cavity 37 with the second bracket 323. The bracket body 32 is formed by connecting the first bracket 321 and the second bracket 323, so that the heating element can be assembled on the first bracket 321, then the first bracket 321 and the second bracket 323 are connected, the heating element is assembled between the first bracket 321 and the second bracket 323, and a gap is formed between the heating element and the second bracket 323 to form the atomization cavity 37, and the first gas outlet hole 381 on the first bracket 321 communicates with the atomization cavity 37 to allow the aerosol in the atomization cavity 37 to flow out.

[0054] Based on the same concept, in an embodiment of the present application, an electronic atomization device is also provided, which comprises the atomizer 100 of any of the above embodiments. The atomizer 100 comprises a housing 10, a support 30, and a heating element 50. The support 30 is arranged in the housing 10, and a liquid storage cavity 11 is defined between the support 30 and the housing 10, which is used to store an aerosol generating substrate. The heating element 50 is arranged in the housing 10 and is used to heat the aerosol generating substrate to form an aerosol for a user to smoke.

[0055] Further, the support 30 is provided with a liquid inlet channel 31 which communicates with the liquid storage cavity 11, and the heating element 50 is arranged in the housing 10 and communicates with the liquid storage cavity 11 through the liquid inlet channel 31. A first flow guide groove 33 is arranged on the top surface of the support 30 facing the liquid storage cavity 11, and the first flow guide groove 33 communicates with the liquid inlet channel 31. The first flow guide groove 33 is arranged on the top surface of the support 30 and communicates between the liquid storage cavity 11 and the liquid inlet channel 31. When the amount of the aerosol generating substrate remaining in the liquid storage cavity 11 is small, or when the atomizer 100 is placed horizontally, the aerosol generating substrate in the liquid storage cavity 11 can be guided into the liquid inlet channel 31 by the first flow guide groove 33, and finally flow to the heating element 50 facing the liquid inlet channel 31, and the heating element 50 generates heat to heat the aerosol generating substrate. Further, the first flow guide groove 33 forms a capillary phenomenon, which can guide a small amount of the aerosol generating substrate into the liquid inlet channel 31 to sufficiently supply the heating element 50 with liquid, prevent the heating element 50 from drying out, and prevent the aerosol generating substrate from being wasted.

[0056] Further, the electronic atomization device further comprises a power supply which supplies power to the atomizer 100, i.e. provides the heating element of the atomizer 100 with the electric energy required for heating.

[0057] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present application.

[0058] The above embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An atomizer characterized by, The atomizer comprises: a housing having an air outlet channel; a bracket arranged in the housing, a liquid storage cavity being defined between the bracket and the housing, and a liquid inlet channel being formed on the bracket and communicating with the liquid storage cavity; and a heating element arranged in the housing and communicating with the liquid storage cavity through the liquid inlet channel; wherein a first flow guide groove is formed on a top surface of the bracket facing the liquid storage cavity, and the first flow guide groove communicates with the liquid inlet channel; the bracket has an atomization cavity formed therein, and an air outlet hole is formed on the bracket and communicates with the atomization cavity and the air outlet channel; the liquid inlet channel comprises a transition hole communicating with the liquid storage cavity, the transition hole and the top surface extend around the outer periphery of the air outlet hole, the first flow guide groove extends around the circumference of the air outlet hole and communicates with opposite ends of the transition hole in the circumferential direction; the first flow guide groove comprises a first sub-flow guide groove and a third sub-flow guide groove, the first sub-flow guide groove is formed around the circumference of the air outlet hole, and the third sub-flow guide groove intersects and communicates with the first sub-flow guide groove.

2. The atomizer of claim 1, wherein, the liquid inlet channel further comprises a liquid inlet hole communicating with the transition hole and communicating with the heating element; the transition hole has a hole wall that is at least partially inclined from the liquid storage cavity towards the liquid inlet hole.

3. The atomizer of claim 2, wherein, the first sub-flow guide groove comprises a plurality of grooves arranged in the radial direction of the air outlet hole, and the third sub-flow guide groove comprises a plurality of grooves arranged in the circumferential direction of the air outlet hole.

4. The atomizer of claim 2, wherein, a second flow guide groove is formed on the inner wall of the transition hole, and the second flow guide groove communicates between the first flow guide groove and the liquid inlet hole.

5. The atomizer of claim 4, wherein, the second flow guide groove comprises a second sub-flow guide groove and a fourth sub-flow guide groove, the second sub-flow guide groove communicates one end of the first flow guide groove in the circumferential direction with the liquid inlet hole, and the fourth sub-flow guide groove communicates the other end of the first flow guide groove in the circumferential direction with the liquid inlet hole.

6. The atomizer of claim 5, wherein, the side wall of the transition hole comprises a first sub-side wall and a second sub-side wall, the first sub-side wall is connected between one end of the first flow guide groove in the circumferential direction and the liquid inlet hole, the second sub-side wall is connected between the other end of the first flow guide groove in the circumferential direction and the liquid inlet hole, and the second sub-flow guide groove and the fourth sub-flow guide groove are formed on the first sub-side wall and the second sub-side wall, respectively.

7. The nebulizer of any one of claims 2-6, wherein, in the direction in which the top surface points towards the liquid inlet hole, the cross-sectional area of the transition hole gradually decreases from large to small.

8. The nebulizer of any one of claims 2-6, wherein, the bracket comprises a bracket body and a sealing element, the bracket body is sleeved in the housing, and the sealing element is sleeved on one end of the bracket body and defines the liquid storage cavity together with the housing; wherein the bracket body has the transition hole and the liquid inlet hole formed thereon, the surface of the sealing element facing the liquid storage cavity is the top surface, the first flow guide groove is formed on the top surface, and a through hole is formed on the sealing element and communicates with the transition hole.

9. The atomizer of claim 8, wherein, The air outlet hole comprises a first air outlet hole and a second air outlet hole, an atomization cavity is formed inside the support body, the first air outlet hole in communication with the atomization cavity is arranged on the support body, and the second air outlet hole in communication with the first air outlet hole is arranged on the sealing element; The through hole is arranged on the top surface of the sealing element and extends around a part of the outer periphery of the second air outlet hole, and the first flow guide groove is arranged on the top surface of the sealing element and extends around another part of the outer periphery of the second air outlet hole.

10. The atomizer of claim 9, wherein, The support body comprises a first support and a second support, the transition hole, the liquid inlet hole and the first air outlet hole are arranged on the first support, and the second support is matched with the first support. The heating element is arranged on the first support and defines the atomization cavity together with the second support.

11. An electronic atomizing device, characterized by, The aerosolizer comprises a power supply and the aerosolizer according to any one of claims 1-10, and the power supply supplies power to the aerosolizer.

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