Atomizer and electronic atomization device

Abstract

The utility model relates to an atomizer and an electronic atomization device. The atomizer comprises an atomization pipe; the heating top cover is provided with an atomization cavity and installed in one end of the atomization pipe, and the heating top cover and the atomization pipe jointly define a liquid storage cavity; the atomizing core is accommodated in the atomizing cavity; the heating top cover is provided with at least one liquid discharging opening used for communicating the liquid storage cavity with the atomization cavity, and each liquid discharging opening comprises a plurality of liquid discharging micropores arranged at intervals. According to the atomizer, the liquid discharging opening comprising the multiple liquid discharging micropores is formed, on one hand, aerosol generating matrixes in the liquid storage cavity can be rapidly supplied to the atomizing cavity, it is guaranteed that liquid is supplied to the atomizing core sufficiently, therefore, good taste is obtained during suction, and scorched flavor or other harmful substances generated due to insufficient liquid supply are effectively prevented; on the other hand, a certain blocking effect is achieved, and liquid leakage of the atomizer due to the fact that the aerosol generating matrix excessively enters the atomizing cavity is prevented.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and particularly to an atomizer and an electronic atomization device. Background Art

[0002] An aerosol is a colloidal dispersion system formed by solid or liquid small particles dispersed and suspended in a gas medium. Since an aerosol can be absorbed by the human body through the respiratory system, it provides a new alternative absorption method for users. An atomization device refers to a device that forms an aerosol by heating or ultrasonic means on a stored atomizable medium. The atomizable medium includes a liquid, a gel, a paste, or a solid aerosol generation matrix. Atomizing these media can deliver an inhalable aerosol to the user, replacing the conventional product form and absorption method.

[0003] However, due to structural defects in traditional atomization devices that use a liquid atomization medium to generate an aerosol, users cannot see the remaining liquid volume. In response to the above problem, an atomization device with a visual liquid storage cavity has emerged. Users can intuitively understand the remaining liquid volume through the liquid storage cavity, so that they can immediately replace the atomization device or refill the atomization medium. However, at the same time, the setting of the liquid storage cavity causes the atomization device to easily leak liquid, which brings inconvenience to the use of the atomization device. Summary of the Invention

[0004] Based on this, in view of the poor anti-leakage performance of the atomization device with a visual liquid storage cavity, it is necessary to provide an atomizer and an electronic atomization device.

[0005] An atomizer, comprising:

[0006] An atomization tube;

[0007] A heating top cover having an atomization cavity, installed inside one end of the atomization tube, and the heating top cover and the atomization tube jointly define a liquid storage cavity; and

[0008] An atomization core, received in the atomization cavity;

[0009] Wherein, the heating top cover is provided with at least one liquid outlet for communicating the liquid storage cavity with the atomization cavity, and each liquid outlet includes a plurality of spaced liquid outlet micro-holes.

[0010] In one embodiment, the width of the liquid outlet micro-hole in the circumferential direction of the heating top cover is 0.3 mm - 1.5 mm: or

[0011] The liquid outlet micro-hole is a circular hole with a diameter of 0.3 mm - 1.5 mm.

[0012] In one embodiment, the heating top cover includes an inner cylinder and an outer cylinder surrounding the outer side of the inner cylinder. The liquid outlet is opened on the inner cylinder. A liquid passage is formed between the outer cylinder and the inner cylinder to connect the liquid outlet and the liquid storage chamber. The outer cylinder is provided with a liquid inlet communicating the liquid passage with the liquid storage chamber.

[0013] In one embodiment, the heating top cover includes a top wall of the top cover facing the liquid storage chamber, a side wall of the top cover extending from the edge of the heating top wall away from the liquid storage chamber, and a bottom wall of the top cover located on the side of the side wall of the top cover away from the top wall of the top cover;

[0014] The top wall of the top cover is provided with a first liquid inlet communicating with the liquid storage chamber, and the side wall of the top cover is provided with a second liquid inlet communicating with the liquid storage chamber.

[0015] In one embodiment, the atomization core includes:

[0016] A heating element;

[0017] A liquid guide, covering the outside of the heating element;

[0018] A fixing tube, the liquid guide is received in one end of the fixing tube close to the liquid storage chamber; and

[0019] A liquid storage body, covering the outside of one end of the fixing tube provided with the liquid guide.

[0020] In one embodiment, the atomizer further includes a heating element bracket, which is connected to one end of the heating top cover away from the liquid storage chamber, and one end of the fixing tube away from the liquid storage chamber is inserted into the heating element bracket.

[0021] In one embodiment, the atomizer further includes a sealing ring, and the sealing ring is installed in the gap between the heating element bracket and the heating top cover.

[0022] In one embodiment, the atomization core includes:

[0023] A heating element;

[0024] A liquid guide, covering the outside of the heating element;

[0025] An inner bracket of the heating element, sleeved on the outside of one end of the liquid guide away from the liquid storage chamber; and

[0026] A reinforcing tube, sleeved on the outside of one end of the liquid guide facing the liquid storage chamber.

[0027] In one embodiment, the atomization core further includes:

[0028] A liquid storage, which is wrapped outside the inner bracket of the heating body and the reinforcing tube; and

[0029] An outer bracket of the heating body, which is sleeved outside the liquid storage.

[0030] An electronic atomization device includes the above atomizer. The electronic atomization device further includes a battery assembly, and the battery assembly is connected to one end of the atomizer and electrically connected to the atomizer.

[0031] By providing a liquid inlet including a plurality of liquid inlet micropores, on the one hand, the aerosol-forming matrix in the liquid storage cavity can be quickly supplied to the atomization cavity, ensuring sufficient liquid supply to the atomization core, so as to obtain a good taste during suction, effectively preventing the generation of burnt smell or other harmful substances due to insufficient liquid supply. On the other hand, it has a certain blocking effect to prevent the aerosol-forming matrix from entering the atomization cavity excessively and causing liquid leakage of the atomizer. Description of the Drawings

[0032] Figure 1 It is a schematic diagram of an electronic atomization device according to an embodiment of the present application.

[0033] Figure 2 It is Figure 1 The internal structure diagram of the shown electronic atomization device.

[0034] Figure 3 It is a schematic diagram of the internal structure of an atomizer according to an embodiment of the present application.

[0035] Figure 4 It is a schematic diagram of the structure of a heating top cover according to an embodiment of the present application.

[0036] Figure 5 It is Figure 4 The internal structure diagram of the shown heating top cover.

[0037] Figure 6 It is an exploded view of an atomization core according to an embodiment of the present application.

[0038] Description of the reference numerals:

[0039] 100. Electronic atomization device; 20. Atomizer; 20a. Liquid storage chamber; 21. Atomization tube; 212. Atomization tube body; 214. Exhaust pipe; 214a. Exhaust passage; 22. Atomization core; 221. Heating element; 222. Liquid guide; 223. Fixed tube; 223a. Communication hole; 224. Liquid storage body; 225. Conductive wire; 226. Fixed plug; 23. Heating top cover; 232. Inner cylinder; 232a. Atomization chamber; 232b. Liquid injection micropore; 234. Outer cylinder; 2341. Top cover top wall; 2341a. First liquid inlet; 2343. Top cover side wall; 2345. Top cover bottom wall; 236. Liquid injection passage; 24. Top cover seal; 25. Heating element support; 26. Base; 27. Thimble; 28. Sealing ring; 40. Battery assembly. Detailed implementation manners

[0040] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description 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 connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0042] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In this application, unless otherwise clearly specified or limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In this application, unless otherwise clearly specified or limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0046] Refer to Figure 1 and Figure 2 , an embodiment of this application provides an electronic atomization device 100 for heating a liquid aerosol - generating substrate to generate an aerosol for user use. The aerosol - generating substrate includes but is not limited to materials for medical, health - preservation, health, and beauty purposes. For example, the aerosol - generating substrate is a liquid medicine, an oil.

[0047] The electronic atomization device 100 includes an atomizer 20 and a battery assembly 40. The battery assembly 40 is connected to one end of the atomizer 20 and is electrically connected to the atomizer 20. The atomizer 20 stores the aerosol - generating substrate, and the atomizer 20 can heat and atomize the aerosol - generating substrate under the action of the electric energy of the battery assembly 40 to generate an aerosol for the user to take.

[0048] Please refer to Figure 3 , Figure 4 and Figure 5, the atomizer 20 includes an atomization tube 21, an atomization core 22, and a heating top cover 23. The heating top cover 23 is installed inside one end of the atomization tube 21. The heating top cover 23 and the atomization tube 21 jointly define a liquid storage cavity 20a. The atomization core 22 is received in the atomization cavity 232a. The heating top cover 23 has an atomization cavity 232a for atomizing the aerosol-forming substrate, and the heating top cover 23 is provided with at least one liquid inlet for communicating the liquid storage cavity 20a with the atomization cavity 232a. Each liquid inlet includes a plurality of spaced liquid inlet micro-holes 232b.

[0049] By providing the liquid inlet including a plurality of liquid inlet micro-holes 232b, on the one hand, the aerosol-forming substrate in the liquid storage cavity 20a can be quickly supplied to the atomization cavity 232a, ensuring sufficient liquid supply to the atomization core 22, so as to obtain a good taste during suction, effectively preventing the generation of burnt taste or other harmful substances due to insufficient liquid supply. On the other hand, it has a certain blocking effect, preventing the aerosol-forming substrate from entering the atomization cavity 232a excessively and causing the atomizer 20 to leak liquid.

[0050] As Figure 4 shown, specifically, the heating top cover 23 is provided with a plurality of liquid inlets, and all the liquid inlets are arranged at intervals along the circumferential direction of the heating top cover 23. Each liquid inlet includes a plurality of liquid inlet micro-holes 232b, and all the liquid inlet micro-holes 232b belonging to the same liquid inlet are arranged at intervals along the circumferential direction of the heating top cover 23. It can be understood that the number and arrangement of the liquid inlets and the liquid inlet micro-holes 232b are not limited to this, and can be adjusted according to the fluidity of the aerosol-forming substrate to meet different liquid inlet requirements.

[0051] More specifically, in one embodiment, each liquid inlet micro-hole 232b is a long hole extending longitudinally along the axial direction of the heating top cover 23, and the width of each liquid inlet micro-hole 232b in the circumferential direction of the heating top cover 23 is 0.3 mm - 1.5 mm, so as to play a certain blocking role while ensuring the liquid inlet speed. In other embodiments, each liquid inlet micro-hole 232b is a circular hole with a diameter of 0.3 mm - 1.5 mm, so as to play a certain blocking role while ensuring the liquid inlet speed. It can be understood that the shape and number of the liquid inlet micro-holes 232b are not limited to this. The liquid inlet micro-holes 232b can be other regular or irregular shapes, and can be specifically adjusted according to the fluidity of the aerosol-forming substrate, so as to have different liquid inlet effects.

[0052] Please continue to refer to Figures 3 to 5, the atomization tube 21 includes an integrally formed atomization tube body 212 and an exhaust pipe 214. The atomization tube body 212 has a housing structure with one end open, having a closed end and an open end oppositely arranged in the axial direction. The exhaust pipe 214 is coaxially arranged with the atomization tube body 212. One end of the exhaust pipe 214 is connected to the closed end of the atomization tube 21, and the other end of the exhaust pipe 214 extends toward the open end of the atomization tube 21. An exhaust passage 214a communicating with the external atmosphere through the closed end is formed in the exhaust pipe 214.

[0053] The heating top cover 23 is arranged inside one end of the atomization tube body 212 close to the open end. The heating top cover 23 is generally in a hollow rotary body structure, and the central axis of the heating top cover 23 coincides with the central axis of the atomization tube 21. Specifically, the heating top cover 23 includes an inner cylinder 232 and an outer cylinder 234 surrounding the outside of the inner cylinder 232. An atomization chamber 232a is formed inside the inner cylinder 232, and a liquid outlet is opened on the inner cylinder 232 to communicate with the atomization chamber 232a. The outer cylinder 234 is provided with a liquid inlet communicating with the liquid storage chamber 20a, and a liquid passage 236 communicating the liquid inlet and the liquid outlet is formed between the outer cylinder 234 and the inner cylinder 232.

[0054] Specifically, in some embodiments, the outer cylinder 234 includes a top cover top wall 2341, a top cover side wall 2343, and a top cover bottom wall 2345. The top cover top wall 2341 is arranged on the side of the outer cylinder 234 facing the liquid storage chamber 20a. The top cover side wall 2343 extends from the edge of the heating top wall away from the liquid storage chamber 20a. The top cover bottom wall 2345 is located on the side of the top cover side wall 2343 away from the top cover top wall 2341. Two first liquid inlets 2341a are opened on the top cover top wall 2341. The two first liquid inlets 2341a are oppositely arranged in a radial direction, and the first liquid inlets 2341a are used to communicate the liquid storage chamber 20a and the liquid passage 236. Two second liquid inlets are opened on the top cover side wall 2343. The two second liquid inlets are oppositely arranged in a radial direction and are aligned with the first liquid inlets in the axial direction. The second liquid inlets communicate with the liquid storage chamber 20a to increase the flow area of the aerosol generation matrix and make the flow of the aerosol generation matrix smoother.

[0055] The inner cylinder 232 is connected between the top cover top wall 2341 and the top cover bottom wall 2345 and is coaxially arranged with the outer cylinder 234. A liquid passage 236 surrounding the inner cylinder 232 in the circumferential direction is formed between the outer cylinder 234 and the inner cylinder 232. One end of the exhaust pipe 214 passes through the top cover top wall 2341 and communicates with the atomization chamber 232a of the inner cylinder 232.

[0056] In this way, the top wall 2341 of the top cover and the atomizing housing jointly define a liquid storage cavity 20a. An atomizing cavity 232a is formed inside the inner cylinder 232. One end of the exhaust pipe 214 passes through the top wall 2341 of the top cover and communicates with the atomizing cavity 232a of the inner cylinder 232. The aerosol generating substrate in the liquid storage cavity 20a can enter the liquid downward channel 236 through the first liquid inlet 2341a and the second liquid inlet opened on the outer cylinder 234, and then enter the atomizing core 22 in the atomizing cavity 232a through a plurality of liquid downward micropores 232b opened on the inner cylinder 232. The aerosol generated after the aerosol generating substrate is heated and atomized by the atomizing core 22 flows out through the exhaust channel 214a.

[0057] It can be understood that in some embodiments, the inner cylinder 232 and the outer cylinder 234 are integrally formed, and the heating top cover 23 is an inseparable whole. In other embodiments, the inner cylinder 232 and the outer cylinder 234 are two independently formed components, and the inner cylinder 232 and the outer cylinder 234 are mutually connected to form the heating top cover 23.

[0058] In some embodiments, the atomizer 20 further includes a top cover seal 24. The top cover seal 24 is formed of a material with certain elasticity such as silica gel. The top cover seal 24 is in a cylindrical structure with one end open. The top cover seal 24 covers the side of the heating top cover 23 facing the liquid storage cavity 20a, and is used to seal the gap between the heating top cover 23 and the atomizing tube 21, so as to prevent the aerosol generating substrate in the liquid storage cavity 20a from leaking.

[0059] Please refer to Figure 3 and Figure 6 As shown, the atomizing core 22 is received in the atomizing cavity 232a and includes a heat generating body 221, a liquid guiding body 222, a fixing tube 223, a liquid storage body 224, a wire 225 and a fixing plug 226 which are mutually connected.

[0060] Specifically, the heat generating body 221 is in a columnar structure formed by winding a metal material such as a heating mesh or a heating wire. The heat generating body 221 can generate heat after being energized to heat and atomize the aerosol generating substrate. It can be understood that the material forming the heat generating body 221 is not limited to this and can be set as needed.

[0061] The liquid guiding body 222 is in a hollow cylindrical structure. The liquid guiding body 222 is circumferentially coated outside the heat generating body 221. The liquid guiding body 222 can be formed of a porous material such as organic cotton and has good adsorption performance, so as to absorb the aerosol generating substrate and guide it to the surface of the heat generating body 221.

[0062] The fixed tube 223 has a rigid tubular structure formed of a high-strength material such as steel, and the central axis of the fixed tube 223 is parallel to the central axis of the exhaust passage 214a. The liquid guide 222 is disposed inside one end of the fixed tube 223 near the liquid storage chamber 20a. A communication hole 223a is formed in the tube wall of the end of the fixed tube 223 where the liquid guide 222 is provided. The communication hole 223a is used to communicate the liquid guide 222 with the liquid storage 224. Therefore, the aerosol generating substrate in the liquid storage 223 can enter the liquid guide 222 through the communication hole 223a. It can be understood that the number and arrangement of the communication holes 223a are not limited. Specifically, in some embodiments, the fixed tube 223 is provided with a plurality of communication holes 223a, and all the communication holes 223a are arranged at intervals along the circumferential direction of the fixed tube 223.

[0063] The liquid storage 224 has a hollow cylindrical structure. The liquid storage 22 is wrapped outside one end of the fixed tube 223 where the liquid guide 222 is provided. The liquid storage 224 is formed of a porous material such as organic cotton, so as to have good adsorption performance to temporarily store the aerosol generating substrate.

[0064] The fixed plug 226 has a hollow cylindrical structure. The fixed plug 226 is inserted into one end of the fixed tube 223 away from the liquid storage chamber 20a. The atomization core 22 includes two wires 225. One end of each wire 225 is connected to the heating element 221, and the other end of each wire 225 passes through the space between the fixed plug 226 and the fixed tube 223 and extends out of the fixed tube 223 to connect to the battery assembly 40.

[0065] In this way, the aerosol generating substrate entering the atomization chamber 232a through the liquid injection micropore 232b is first absorbed and stored by the liquid storage 224, and then passes through the communication hole 223a on the fixed tube 223 and enters the liquid guide 222. The liquid guide 222 guides the aerosol generating substrate to the surface of the heating element 221. The heating element 221 is used to heat the aerosol generating substrate on its surface to generate aerosol. Since the heating top cover 23 has a relatively large liquid injection channel 236 and liquid inlet, the aerosol generating substrate can be fully supplied to the liquid storage 224, and the liquid storage 224 can always be in a full liquid state, so as to timely supplement the aerosol generating substrate to the liquid guide 222, making the atomizer 20 have good anti-leakage performance.

[0066] Please continue to refer to Figure 3, in some embodiments, the atomizer 20 further includes a heating element bracket 25, a base 26, and a thimble 27. The heating element bracket 25 has a hollow rotary body structure. The heating element bracket 25 is fitted into the bottom wall 2345 of the heating top cover 23 at the end away from the liquid storage cavity 20a. The central axis of the heating element bracket 25 coincides with the central axis of the atomizing tube 21. One end of the fixing tube 223 away from the liquid storage cavity 20a is inserted into the heating element bracket 25, and the end face of the liquid storage body 224 away from the liquid storage cavity 20a abuts against one end face of the heating element bracket 25. The base 26 is fitted to the end of the heating element bracket 25 away from the liquid storage cavity 20a. The atomizer 20 includes two thimbles 27, and the two thimbles 27 are inserted into the base 26 to be electrically connected to two wires 225 extending from the fixing tube 223 respectively. Therefore, the battery assembly 40 supplies power to the heating element 221 through the thimbles 27 and the wires 225.

[0067] In this way, the heating element 221 and the liquid guide 222 form an integral body under the wrapping of the fixing tube 223. During assembly, the fixing tube 223 can be riveted onto the heating element bracket 25, which simplifies the assembly process of the atomizer 20 and enables automated assembly while improving the sealing performance of the atomizer 20, thereby enhancing the product performance.

[0068] In some embodiments, the atomizer 20 further includes a sealing ring 28. The sealing ring 28 is sleeved outside one end of the heating element bracket 25 facing the liquid storage cavity 20a and is installed in the gap between the heating element bracket 25 and the heating top cover 23. Therefore, the sealing ring 28 can seal the gap between the heating element bracket 25 and the heating top cover 23, effectively preventing the aerosol-forming matrix in the atomization core 22 from leaking.

[0069] In some other embodiments, different from the structure of the above atomization core 22, the atomization core 22 includes a heating element, a liquid guide, an inner bracket of the heating element, a reinforcing tube, a liquid storage body, and an outer bracket of the heating element.

[0070] Among them, the heating element has a columnar structure formed by winding metal materials such as a heating mesh and a heating wire. The liquid guide is coated outside the heating element, and the liquid guide is formed by porous materials such as organic cotton, thus having good adsorption performance. The inner bracket of the heating element has a hollow rotary body structure and is sleeved outside one end of the liquid guide away from the liquid storage cavity. The reinforcing tube has a hollow tubular structure and is preferably formed by materials with higher strength such as steel. The reinforcing tube is sleeved outside one end of the liquid guide facing the liquid storage cavity and is used to increase the structural strength of the atomization core. The liquid storage body is coated outside the inner bracket of the heating element and the reinforcing tube, and the liquid storage body is formed by porous materials such as organic cotton, thus having good adsorption performance to temporarily store the aerosol-forming matrix. The outer bracket of the heating element has a hollow rotary body structure and is sleeved outside the liquid storage body.

[0071] The above-mentioned atomizer 20 and the electronic atomization device 100 provided therewith are provided with a multi-micropore structure formed by the liquid supply micropores 232b on the heating top cover 23. Therefore, it can not only supply liquid to the atomization core 22 quickly, so that users can obtain a good taste when sucking, but also block the excessive entry of the aerosol-forming matrix into the atomization cavity 232a to a certain extent, avoiding the excessive absorption of the aerosol-forming matrix by the liquid storage body 224 and the liquid guide body 222, and further preventing the aerosol-forming matrix from leaking into the exhaust passage 214a, resulting in liquid leakage of the electronic atomization device 100.

[0072] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0073] The above-mentioned embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An atomizer, characterized in that, Comprising: An atomization tube; A heating top cover with an atomization cavity, which is installed inside one end of the atomization tube, and the heating top cover and the atomization tube jointly define a liquid storage cavity; And An atomization core, which is received in the atomization cavity; Wherein, the heating top cover is provided with at least one liquid inlet for communicating the liquid storage cavity with the atomization cavity, and each liquid inlet includes a plurality of spaced liquid inlet micro-holes.

2. The atomizer according to claim 1, characterized in that, The width of the liquid inlet micro-hole in the circumferential direction of the heating top cover is 0.3 mm - 1.5 mm: or The liquid inlet micro-hole is a circular hole with a diameter of 0.3 mm - 1.5 mm.

3. The atomizer according to claim 1, wherein, The heating top cover includes an inner cylinder body and an outer cylinder body surrounding the outer side of the inner cylinder body. The liquid inlet is opened on the inner cylinder body, and a liquid inlet channel for communicating the liquid inlet with the liquid storage cavity is formed between the outer cylinder body and the inner cylinder body. The outer cylinder body is provided with a liquid inlet for communicating the liquid inlet channel with the liquid storage cavity.

4. The atomizer according to claim 3, characterized in that, The heating top cover includes a top cover top wall facing the liquid storage cavity, a top cover side wall extending from the edge of the heating top wall away from the liquid storage cavity, and a top cover bottom wall located on the side of the top cover side wall away from the top cover top wall; The top cover top wall is provided with a first liquid inlet for communicating the liquid storage cavity, and the top cover side wall is provided with a second liquid inlet for communicating the liquid storage cavity.

5. The atomizer according to claim 1, characterized in that The atomization core includes: A heating element; A liquid guiding body, which is coated outside the heating element; A fixing tube, and the liquid guiding body is received inside one end of the fixing tube close to the liquid storage cavity; and A liquid storage body, which is coated outside one end of the fixing tube provided with the liquid guiding body.

6. The atomizer according to claim 5, characterized in that, The atomizer further includes a heating element bracket, the heating element bracket is connected to one end of the heating top cover away from the liquid storage cavity, and one end of the fixing tube away from the liquid storage cavity is inserted into the heating element bracket.

7. The atomizer according to claim 6, characterized in that, The atomizer further includes a sealing ring, and the sealing ring is installed in the gap between the heating element bracket and the heating top cover.

8. The atomizer according to claim 1, characterized in that, The atomization core includes: A heating element; A liquid guiding body, which is coated outside the heating element; A heating element inner bracket, which is sleeved outside one end of the liquid guiding body away from the liquid storage cavity; and A strengthening tube, which is sleeved outside one end of the liquid guiding body facing the liquid storage cavity.

9. The atomizer according to claim 8, characterized in that, The atomization core further includes: A liquid storage body, which is coated outside the heating element inner bracket and the strengthening tube; and A heating element outer bracket, which is sleeved outside the liquid storage body.

10. An electronic atomization device, characterized in that, Including the atomizer according to any one of claims 1 to 9, the electronic atomization device further includes a battery assembly, and the battery assembly is connected to one end of the atomizer and is electrically connected to the atomizer.

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