Electronic atomization device, atomizer, atomization assembly and atomization core of atomization assembly

Abstract

The invention discloses an electronic atomization device, an atomizer, an atomization assembly and an atomization core of the atomization assembly. The atomizing core is characterized in that a first sleeve is provided with a first liquid inlet; the second sleeve is arranged in the first sleeve in a sleeved mode and is in interference fit with the first sleeve, a second liquid inlet is formed in the second sleeve, a ventilation groove is further formed in the second sleeve, and the first liquid inlet and the second liquid inlet are overlapped; the liquid suction part is contained in the second sleeve and covers the second liquid inlet and part of the ventilation groove, and the air inlet end of the ventilation groove is exposed in the second sleeve and is not covered by the liquid suction part; the heating piece is arranged on the side, away from the second sleeve, of the liquid absorption piece. The inner wall face of the first sleeve and the outer side face of the liquid suction piece cover the inner side and the outer side of the ventilation groove correspondingly and are matched with the ventilation groove to form a ventilation channel. By means of the mode, the scheme that the air exchange channel is formed in the atomizing core is simple in structure and convenient to machine, and the risk that the air exchange effect is poor due to the fact that the atomizing core is filled with the liquid aerosol matrix can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and in particular to an electronic atomization device, an atomizer, an atomization assembly and an atomization core thereof. Background Art

[0002] As a device that converts a liquid matrix into an aerosol that can be inhaled by the user, the electronic atomization device has been widely used in the market in recent years. One of its core components is the atomizer, and the performance of the atomizer directly affects the use effect and user experience of the electronic atomization device. However, there are some problems in the design of the atomizer in the existing electronic atomization device, especially the structural design of the internal ventilation channel, which limits the further improvement of the performance of the electronic atomization device.

[0003] The ventilation channel in the atomizer of the existing electronic atomization device is designed on the atomization base, and the design is relatively complicated, which not only increases the difficulty of processing, but also increases the production cost. In addition, the ventilation channel in the atomizer of the existing electronic atomization device is also easily filled with liquid matrix. Once the ventilation channel is filled with liquid, its ventilation function will be greatly reduced or even completely ineffective. This will cause the air pressure in the liquid storage cavity to be unable to be effectively balanced, thereby affecting the atomization efficiency. Summary of the invention

[0004] The present application mainly provides an electronic atomization device, an atomizer, an atomization assembly and an atomization core thereof, so as to solve the problem that the ventilation channel in the existing atomizer is inconvenient to process due to defects in the structural design and also has a greater risk of being filled with liquid, resulting in poor ventilation effect.

[0005] In order to solve the above technical problems, a technical solution adopted by the present application is: to provide an atomizer. The atomizer core includes: a first sleeve, provided with at least two first liquid inlets distributed along the circumferential direction; a second sleeve, sleeved in the first sleeve and interference fit with the first sleeve, the second sleeve is provided with at least two second liquid inlets distributed along the circumferential direction, and the second sleeve is also provided with a ventilation groove, the first liquid inlet and the second liquid inlet overlap each other; a liquid absorbing member, accommodated in the second sleeve and covering the second liquid inlet and part of the ventilation groove, the air inlet end of the ventilation groove is exposed in the second sleeve and is not covered by the liquid absorbing member; a heating member, arranged on the side of the liquid absorbing member away from the second sleeve; wherein the inner wall surface of the first sleeve and the outer side surface of the liquid absorbing member respectively cover the inner and outer sides of the ventilation groove, and cooperate with the ventilation groove to form a ventilation channel.

[0006] In some embodiments, the ventilation groove is isolated from the second liquid inlet, and ventilation is performed through the liquid suction member.

[0007] In some embodiments, the air exchange groove communicates with the second liquid inlet, and the air exchange passage performs air exchange directly through the second liquid inlet.

[0008] In some embodiments, two second liquid inlets spaced apart along the axial direction are provided on the tube wall of the second sleeve to respectively correspond to the upper heating mesh and the lower heating mesh, and the air exchange groove communicates with the second liquid inlet corresponding to the upper heating mesh.

[0009] In some embodiments, the size of the first liquid inlet along the circumferential direction of the first sleeve is smaller than the size of the second liquid inlet along the circumferential direction of the second sleeve.

[0010] In some embodiments, multiple groups of the second liquid inlets are arranged along the circumferential direction of the second sleeve, the air exchange groove is arranged between adjacent two groups of the second liquid inlets, the air exchange groove includes a first air exchange section and a second air exchange section which are communicated with each other, the first air exchange section communicates with one side of the second liquid inlet in the circumferential direction, and the second air exchange section extends along the axial direction of the second sleeve to between the bottom of the second liquid inlet corresponding to the lower heating mesh and the end of the second sleeve.

[0011] In some embodiments, both the first sleeve and the second sleeve are rigid tubes.

[0012] To solve the above technical problems, another technical solution adopted by the present application is: to provide an atomization component. The atomization component includes a housing, a liquid storage member, and the atomization core as described above. The atomization core is installed in the housing, the liquid storage member is arranged in the housing and surrounds the atomization core, and a liquid passage hole is provided at the top end of the housing.

[0013] To solve the above technical problems, another technical solution adopted by the present application is: to provide an atomizer. The atomizer includes a housing assembly and the atomization component as described above, and the atomization component is detachably installed on the housing assembly.

[0014] To solve the above technical problems, another technical solution adopted by the present application is: to provide an electronic atomization device. The electronic atomization device includes a main body and the atomizer as described above, and the main body is connected to the atomizer and supplies power to the atomizer.

[0015] The beneficial effects of the present application are as follows: Different from the prior art, the present application discloses an electronic atomization device, an atomizer, an atomization component and an atomization core thereof. By providing a first sleeve and a second sleeve that can be in interference fit with each other, and a ventilation groove can be conveniently formed on the second sleeve. Through the cooperation with the inner wall surface of the first sleeve and the outer side surface of the liquid absorbing member, a ventilation channel for ventilation can be formed. Compared with arranging a ventilation groove on the atomization base, the scheme of forming the ventilation channel adopted in the present application has higher processing efficiency and lower cost. Further, the ventilation groove is arranged on the second sleeve and covered by the liquid absorbing member, and the liquid absorbing member increases the adsorption force of the liquid existing in the ventilation groove, which can effectively avoid the situation that the ventilation effect is poor due to the ventilation groove being filled with the liquid aerosol matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, where:

[0017] Figure 1 is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application;

[0018] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of an embodiment of the atomizer in the shown electronic atomization device;

[0019] Figure 3 is Figure 2 a schematic structural diagram of the separated state of the housing assembly and the atomization component in the shown atomizer;

[0020] Figure 4 is Figure 2 a schematic structural diagram of the atomization component in the shown atomizer;

[0021] Figure 5 is Figure 4 a schematic exploded structural diagram of the shown atomization component;

[0022] Figure 6 is Figure 4 a schematic cross-sectional structural diagram of the atomization core in the shown atomization component;

[0023] Figure 7 is Figure 2 a schematic structural diagram of another embodiment of the atomization component in the shown atomizer;

[0024] Figure 8 is Figure 6 a schematic exploded structural diagram of the atomization sleeve in the shown atomization core. Detailed implementation manners

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0026] The terms "first", "second", and "third" in the embodiments of the present application are only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0027] Referring to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0028] The present application provides an electronic atomization device 300. Refer to Figure 1 , Figure 1 which is a schematic structural diagram of an embodiment of the electronic atomization device provided by the present application.

[0029] The electronic atomization device 300 includes a main unit 200 and an atomizer 100. The main unit 200 is connected to the atomizer 100 and supplies power to the atomizer 100.

[0030] The electronic atomization device 300 can be used to atomize aerosol matrices such as e-liquid, liquid medicine, or nutrient solution, that is, to atomize the liquid aerosol matrix into aerosol for users to inhale. Among them, the main body 200 can be detachably connected to the atomizer 100 and supply power to the atomizer 100, so that the atomizer 100 can be replaced; or the main body 200 and the atomizer 100 are integrated and supply power to the atomizer 100. The atomizer 100 is used to store the aerosol matrix and atomize the aerosol matrix to form aerosol for users to absorb.

[0031] The main body 200 includes a control element and a battery that are electrically connected. The control element is also used to be electrically connected to the atomizer 100 to identify the status information of the atomizer 100 and control the power supply to the atomizer 100 according to the identified status information.

[0032] Please refer to Figures 2 to 4 , Figure 2 which Figure 1 is a schematic structural diagram of an embodiment of the atomizer in the electronic atomization device shown, Figure 3 and Figure 2 is a schematic structural diagram of the separated state of the housing assembly and the atomization assembly in the atomizer shown, Figure 4 and Figure 2 is a schematic structural diagram of the atomization assembly in the atomizer shown.

[0033] As Figure 2 and Figure 4 shown, the atomizer 100 includes a housing assembly 10 and an atomization assembly 2. A first cavity 101 and a second cavity 102 that communicate with each other are formed in the housing assembly 10. The first cavity 101 is used to store the aerosol matrix; the atomization assembly 2 is assembled in the second cavity 102, and includes a housing 20, a liquid storage member 30, and an atomization core 40. The atomization core 40 is installed in the housing 20. The liquid storage member 30 is disposed in the housing 20 and disposed around the atomization core 40. The liquid storage member 30 also covers a part of the liquid inlet 401 on the side wall of the atomization core 40. A liquid passage hole 201 is provided at the top end of the housing 20. The liquid passage hole 201 communicates the first cavity 101 and the space inside the housing 20. At least a part of the liquid inlet 401 that is not covered is exposed in the liquid passage hole 201.

[0034] In the housing assembly 10, the first cavity 101 is used to store the aerosol matrix, and the second cavity 102 is at least used to assemble the atomization assembly 2. Among them, the first cavity 101 can be disposed around the second cavity 102, or the first cavity 101 and the second cavity 102 are arranged side by side.

[0035] In this embodiment, the first cavity 101 is disposed around the second cavity 102, and the second cavity 102 and the first cavity 101 are separated by a pipe body 104. The pipe body 104 is provided with a communication hole 103 that communicates the first cavity 101 and the second cavity 102.

[0036] Specifically, referring to Figure 3 , the housing assembly 10 includes a housing 12 and a base 14. One end of the housing 12 has a nozzle 120, and the other end is an open end. The base 14 includes a base body 140 and a pipe body 104 connected to the base body 140. The cavities communicating with each other on the base body 140 and the pipe body 104 together form a second cavity 102. The base body 140 is sealingly connected to the open end of the housing 12, and one end of the pipe body 104 away from the base body 140 is sealingly connected to the nozzle 120.

[0037] Optionally, the first cavity 101 and the second cavity 102 can be arranged side by side. For example, the space inside the housing 12 is separated by a partition to form the first cavity 101 and the second cavity 102, and a communication hole 103 communicating the first cavity 101 and the second cavity 102 is provided on the partition.

[0038] Wherein, the atomization assembly 2 is detachably installed in the second cavity 102. For example, the atomization assembly 2 can be inserted, snapped or screwed into the second cavity 102.

[0039] In this embodiment, the atomization assembly 2 is movably embedded in the second cavity 102 to facilitate the disassembly and assembly of the atomization assembly 2 from the housing assembly 10.

[0040] Optionally, the liquid through hole 201 on the outer shell 20 can be directly docked and communicated with the communication hole 103, that is, the aerosol matrix in the first cavity 101 can directly supply liquid to the space inside the outer shell 20. For example, a slope is formed on the inner side surface of the pipe body 104, the communication hole 103 is a hole on the slope, and a corresponding slope is also formed at the top end of the outer shell 20 and fits on the slope on the inner side of the pipe body 104, wherein the liquid through hole 201 also communicates with the communication hole 103.

[0041] In this embodiment, as Figure 2 shown, after the atomization assembly 2 is embedded in the second cavity 102, the second cavity 102 is not completely occupied, and a part of the space is left as a transition cavity 106 to communicate the first cavity 101 with the liquid through hole 201 of the outer shell 20, that is, both the communication hole 103 and the liquid through hole 201 communicate with the transition cavity 106. The transition cavity 106 belongs to a part of the second cavity 102, that is, the liquid through hole 201 communicates with the second cavity 102. The aerosol matrix in the first cavity 101 enters the outer shell 20 through the communication hole 103, the transition cavity 106 and the liquid through hole 201.

[0042] Furthermore, a conical surface 105 is formed on the end surface of the second cavity 102 facing the outer shell 20. When the atomizer 100 is inverted, the liquid in the second cavity 102 can flow back to the first cavity 101 through the communication hole 103. Therefore, when the atomizer 100 is inverted to replace the atomization assembly 2, the liquid stored in the transition cavity 106 can avoid leakage due to flowing back to the first cavity 101, reducing the risk of liquid leakage.

[0043] As Figure 2 and Figure 3 shown, the housing assembly 10 further includes a movable member 16 movably disposed in the second cavity 102. One end of the movable member 16 facing the atomization assembly 2 is provided with the conical surface 105. One end of the atomization core 40 extending out of the outer shell 20 is connected to the movable member 16, and the outer shell 20 is movably assembled in the second cavity 102; please refer to Figure 2 , wherein when the atomization assembly 2 is assembled in the second cavity 102, the movable member 16 avoids the communication hole 103, so that the communication hole 103 communicates the first cavity 101 and the second cavity 102; please refer to Figure 3 , after the atomization assembly 2 is disassembled from the second cavity 102, the movable member 16 blocks the communication hole 103.

[0044] The second cavity 102 is a straight cylindrical cavity. By the actions of the user installing the atomization assembly 2 in the second cavity 102 and disassembling the atomization assembly 2 from the second cavity 102, the movement of the movable member 16 can be driven simultaneously; when the movable member 16 moves to the first position, the communication hole 103 can be avoided; when the movable member 16 moves to the second position, the communication hole 103 can be blocked to prevent the aerosol matrix in the first cavity 101 from leaking from the communication hole 103.

[0045] Specifically, in the scenario of installing the atomization assembly 2 in the second cavity 102, initially the movable member 16 is located at the second position and blocks the communication hole 103. Then the atomization assembly 2 is pushed inward from the port of the second cavity 102. The atomization core 40 will push against the movable member 16 to move from the second position to the first position, and one end of the atomization core 40 is also connected to the movable member 16. The atomization channel of the atomization core 40 leads to the mouthpiece 120 through the movable member 16, and a transition cavity 106 is formed between the movable member 16 and the outer shell 20; in the scenario of disassembling the atomization assembly 2 from the second cavity 102, for the atomizer 100, the aerosol matrix in the transition cavity 106 is diverted through the conical surface 105 of the movable member 16, and then flows back into the first cavity 101 through the communication hole 103. The user applies force to pull the atomization assembly 2 outward, and at the same time the atomization assembly 2 drives the movable member 16 to move outward together, so that the movable member 16 moves from the first position to the second position and blocks the communication hole 103, preventing the aerosol matrix in the first cavity 101 from leaking, and at the same time separating the atomization core 40 and the movable member 16.

[0046] By further providing the movable member 16 in the second cavity 102, the movable member 16 can move with the atomization assembly 2, and then the communication hole 103 can be blocked when the atomization assembly 2 is disassembled to prevent the aerosol matrix in the first cavity 101 from leaking, while the communication hole 103 can be avoided when the atomization assembly 2 is installed in the second cavity 102, so as to facilitate the aerosol matrix in the first cavity 101 to enter the transition cavity 106 and supply liquid to the atomization assembly 2.

[0047] In this embodiment, as Figure 3 shown, the movable member 16 includes a movable cylinder body 160 and a conical end 162 connected to one end of the movable cylinder body 160. The movable cylinder body 160 is movably assembled with the inner wall surface of the second cavity 102. The outer surface of the conical end 162 facing the outer shell 20 is a conical surface 105. A liquid collecting groove 164 is formed on the inner surface of the conical end 162. A liquid collecting member 17 is disposed in the movable cylinder body 160 and on the liquid collecting groove 164. The liquid collecting member 17 is provided with an aerosol passage 170 communicating with the atomization passage 401 of the atomization core 40.

[0048] A sealing ring may be provided on the outer wall of the movable cylinder body 160, and the sealing ring also abuts against the inner wall surface of the second cylinder body 102, so that the movable member 16 forms a movable matching relationship with the inner wall surface of the second cylinder body 102. That is, when no external force is applied to the movable member 16, the position of the movable member 16 remains unchanged relative to the second cavity 102, and when an external force is applied to the movable member 16, the movable member 16 can be driven to move in the second cavity 102.

[0049] The conical end 162 has a port that mates with the end of the atomization core 40, and one end of the atomization core 40 is sealingly connected to the conical end 162 to avoid liquid leakage. A liquid collecting member 17 that can adsorb condensate is provided in the movable member 16. The liquid collecting member 17 can be made of a liquid-absorbing material such as cotton or non-woven fabric. It can adsorb the condensate formed by the aerosol rising and condensing when encountering cold, can avoid the deterioration of the aerosol taste caused by the condensate entering the user's mouth, and can also avoid the condensate flowing back to the atomization core 40, and can effectively improve the atomization performance of the atomizer 100.

[0050] When the liquid collecting member 17 adsorbs a large amount of condensate, the condensate can gather in the liquid collecting groove 164 of the conical end 162 under the influence of gravity, that is, the liquid collecting groove 164 can be used to collect the condensate, further improving the liquid collecting ability.

[0051] Continue to refer to Figures 3 to 5 , in which Figure 5 is Figure 4 an exploded structural schematic diagram of the atomization assembly shown. The outer shell 20 includes a cylinder body 220 and a base 222. A liquid through hole 201 is provided at the top end of the cylinder body 220, and its bottom end is an open end. The base 222 seals the open end of the cylinder body 220 and defines a receiving cavity. The liquid storage member 30 is disposed in the receiving cavity. The atomization core 40 is connected to the base 222 and the top end of the cylinder body 220. An air hole communicating with the atomization core 40 is provided on the base 122.

[0052] Specifically, the liquid passage hole 201 includes a connecting portion 202 and a liquid passage portion 203 provided on at least one side of the connecting portion 202. Both the connecting portion 202 and the liquid passage portion 203 are hole structures penetrating the top end of the cylinder 220. Among them, the connecting portion 202 is in axial hole fit with the atomization core 40, and the liquid passage portion 203 communicates the accommodation cavity inside the housing 20 and the transition cavity 106 outside the housing 20.

[0053] In this embodiment, symmetric liquid passage portions 203 are provided on both sides of the connecting portion 202, and the ratio of the area of the liquid passage portion 203 to the end area of the liquid storage member 30 is 0.25 to 0.5, so as to replenish the liquid storage member 30 in the accommodation cavity more quickly and evenly.

[0054] Among them, the ratio of the area of the liquid passage portion 203 to the end area of the liquid storage member 30 can be 0.25, 0.3, 0.35, 0.4, 0.45 or 0.5.

[0055] The length of the liquid inlet 401 along the outer wall circumference of the atomization core 40 is less than the length of the side wall of the connecting portion 202 in the same circumference. The exposed part of the liquid inlet 401 on the atomization core 40 is located at the liquid passage portion 203. This part of the liquid inlet 401 can face the liquid passage portion 203, or it can also face the side wall of the connecting portion 202. Among them, when facing the side wall of the connecting portion 202, the space of this part of the liquid inlet 401 is still communicated with the space of the liquid passage portion 203, and this part of the liquid inlet 401 can still directly accumulate aerosol matrix.

[0056] The material of the liquid storage member 30 can be polyester fiber, polypropylene fiber or non-woven fabric, etc. It has high adsorption capacity and uniform adsorption capacity, can absorb and store a certain amount of aerosol matrix, and it also has good liquid conduction ability and stable liquid conduction rate, ensuring that the aerosol matrix can be smoothly transmitted to the atomization core 40.

[0057] The liquid storage member 30 is arranged in the accommodation cavity of the outer shell 20, can absorb and store the aerosol matrix and conduct the aerosol matrix to the atomization core 40. Its function is to appropriately block the fluidity of the aerosol matrix, prevent too much and too fast aerosol matrix from entering the atomization core 40 and causing liquid leakage accidents, and can also reduce the liquid leakage risk at each connection of the outer shell 20.

[0058] Referring to Figure 2 and Figure 4 , at least a part of the liquid inlet 401 of the atomization core 40 is exposed in the liquid passage hole 201, or further, this part of the liquid inlet 401 can be exposed in the liquid passage hole 201 and the transition cavity 106. The exposed part of the liquid inlet 401 is not covered by the liquid storage member 30, so the aerosol matrix at the liquid passage hole 201 can directly replenish it. Compared with the path where the aerosol matrix needs to pass through the liquid storage member 30 to replenish the liquid inlet 401, its replenishment rate is higher, and it can more quickly supplement the insufficient liquid supply demand of the atomization core 40.

[0059] In this application, a liquid inlet 401 is provided on the side wall of the atomization core 40. Part of the liquid inlet 401 is wrapped and covered by the liquid storage member 30, and the covered part of the liquid inlet 401 is supplied with liquid by the aerosol matrix absorbed and stored by the liquid storage member 30; the part of the liquid inlet 401 not covered by the liquid storage member 30 is at least exposed in the liquid passage hole 201 to be directly supplied with liquid by the liquid aerosol matrix temporarily stored at the liquid passage hole 201. Therefore, the liquid inlet 401 relatively has two liquid supply paths. Among them, the liquid supply rate from the liquid storage member 30 to the atomization core 40 is relatively more balanced, and a more uniform and appropriate amount of aerosol matrix can be provided to the atomization core 40 to meet the basic atomization requirements of the atomization core 40. However, once the atomization demand of the atomization core 40 is too high due to the influence of the user's suction habit and cannot be met due to the nature limitation of the liquid storage member 30, dry burning is likely to occur; in this application, an additional liquid supply path is provided, that is, the aerosol matrix at the liquid passage hole 201 can relatively supply liquid to the uncovered part of the liquid inlet 401 more quickly for the atomization core 40 to atomize, so as to facilitate the real-time increase of the liquid supply demand to the atomization core 40, make up for the part of the atomization demand that cannot be met by the liquid storage member 30, and prevent dry burning of the atomization core 40 caused by insufficient liquid supply. When the atomizer 100 is in use, the uncovered part of the liquid inlet 401 is relatively located above, and the aerosol matrix entering the atomization core 40 from this place is affected by gravity, which can increase the liquid supply rate from top to bottom to the heating element in the atomization core 40 and avoid dry burning of the part of the heating element located relatively at the bottom.

[0060] Furthermore, the ratio of the uncovered area to the covered area of the liquid inlet 401 is 0.25 to 0.5 to balance the liquid supply capabilities of the two liquid replenishment paths, so that the liquid supply rate to the atomization core 40 can be increased without increasing the risk of liquid leakage, thereby effectively reducing the risk of dry burning of the atomization core 40.

[0061] Specifically, the ratio of the uncovered area to the covered area of the liquid inlet 401 can be 0.25, 0.3, 0.35, 0.4, 0.45 or 0.5. Among them, when the ratio of the uncovered area to the covered area of the liquid inlet 401 is less than 0.25, the effect of increasing the liquid supply rate to the atomization core 40 is not significant enough; when the ratio of the uncovered area to the covered area of the liquid inlet 401 is greater than 0.5, the risk of liquid leakage of the atomization core 40 increases and the atomization of the overly sufficient aerosol matrix is not sufficient enough.

[0062] Please refer to Figure 3 、 Figure 4 and Figure 6 where Figure 6 is Figure 4 the schematic cross-sectional structure diagram of the atomization core in the shown atomization assembly.

[0063] The atomizer core 40 includes an atomizer sleeve 41, a liquid suction component 42 and a heating component 43. The side wall of the atomizer sleeve 41 is provided with a liquid inlet 401. The liquid suction component 42 is arranged in the atomizer sleeve 41 and covers the liquid inlet 401. The heating component 43 is stacked on the side of the liquid suction component 42 away from the liquid inlet 401; wherein the heating component 43 covers the first liquid inlet portion 402 exposed in the liquid hole 201 and the second liquid inlet portion 403 covered by the liquid storage component 30 along the radial direction of the atomizer sleeve 41.

[0064] The atomizing sleeve 41 is a tubular structure, which can be a single-tube structure or a multi-layer tube structure, with at least one liquid inlet 401 distributed along its circumference, and multiple liquid inlets 401 can be evenly distributed along the axial direction of the atomizing sleeve 41. The liquid absorbing member 42 can be made of cotton or non-woven fabric, etc., which can absorb liquid and guide the liquid to the heating member 43; or the liquid guiding member 42 can also be porous ceramic or porous glass. The heating member 42 can be a heating net or a heating film, which can heat the atomized aerosol matrix to generate aerosol in the atomizing channel 401.

[0065] Among them, the heating element 43 covers the liquid inlet 401 along the radial direction of the atomizing sleeve 41, and the liquid inlet 401 is divided into a first liquid inlet portion 402 exposed in the liquid hole 201 and a second liquid inlet portion 403 covered by the liquid storage component 30. The heating element 43 covers the first liquid inlet portion 402 and the second liquid inlet portion 403 at the same time. The liquid inlet rate at the first liquid inlet portion 402 is greater than the liquid inlet rate at the second liquid inlet portion 403. The first liquid inlet portion 402 is relatively located at the top and has a larger liquid inlet rate. It can supply liquid to the heating element 43 more quickly, and under the influence of gravity, it can supply liquid to the entire downward liquid absorption component 42 and the heating element 43, so as to assist in strengthening the liquid supply to the portion of the heating element 43 located at the bottom, thereby reducing the risk of dry burning of the portion of the heating element 43 at the bottom.

[0066] In this embodiment, Figure 3 and Figure 6 As shown, the heating element 43 includes an upper heating net 431 and a lower heating net 432 distributed and connected along the axial direction of the atomizing sleeve 41 , the upper heating net 431 covers the first liquid inlet portion 402 and part of the second liquid inlet portion 403 , and the lower heating net 432 covers the rest of the second liquid inlet portion 403 .

[0067] The heating element 43 is a heating net with two layers, upper and lower. If the upper heating net 431 and the lower heating net 432 are both supplied with liquid by the aerosol matrix absorbed by the liquid storage component 30, the liquid supply to the upper heating net 431 may be relatively less due to factors such as gravity, which may easily cause insufficient liquid supply to the upper heating net 431, resulting in a greater risk of dry burning of the upper heating net 431.

[0068] In this embodiment, the aerosol matrix at the liquid through-hole 201 can supply liquid to the upper heating mesh 431 more directly at a faster rate through the first liquid inlet part 402. The aerosol matrix can flow to the upper heating mesh 431 more quickly. The aerosol matrix absorbed by the liquid storage member 30 relatively below can supply liquid to the lower heating mesh 432, so that both the upper heating mesh 431 and the lower heating mesh 432 can be sufficiently supplied with liquid, and the two different liquid supply paths can effectively reduce the phenomenon of liquid robbing between the upper heating mesh 431 and the lower heating mesh 432.

[0069] Optionally, as Figure 5 shown, the liquid storage member 30 can be in a column shape, and is provided with a through-hole for the atomization core 40 to pass through. The liquid storage member 30 basically occupies the accommodation cavity of the outer shell 20.

[0070] Please refer to Figure 7 , Figure 7 is Figure 2 a schematic structural diagram of another embodiment of the atomization assembly in the atomizer shown. Optionally, a cut groove 301 is provided at one end of the liquid storage member 30 facing the liquid through-hole 201. The bottom of the cut groove 301 is not higher than the bottom of the upper heating mesh 431 along the axial direction of the atomization sleeve 41. The cut groove 301 makes the liquid storage member 30 form a first surrounding part 31 surrounding the upper heating mesh 431 and a second surrounding part 32 surrounding the lower heating mesh 432.

[0071] The cut groove 301 is provided at the outer edge of the liquid storage member 30. By providing the cut groove 301, the aerosol matrix can directly reach the inside of the liquid storage member 30. The aerosol matrix can directly reach the lower heating mesh 432 through the second surrounding part 32, relatively shortening the path for the aerosol matrix to reach the lower heating mesh 431 and improving the liquid supply efficiency to the lower heating mesh 432; the aerosol matrix passing through the first surrounding part 31 can supply liquid to at least part of the upper heating mesh 431, and the aerosol matrix therein can also supply liquid to the lower heating mesh 432 through the second surrounding part 32.

[0072] By further providing the cut groove 301 on the liquid storage member 30, liquid supply paths of different lengths can be formed for the heating meshes at different positions, so as to take into account the liquid supply requirements of the heating mesh structures at various positions, balance and ensure the liquid supply requirements of the heating meshes at various positions, eliminate the liquid supply imbalance phenomenon of excessive or insufficient liquid supply at local positions, enable each position of the heating member 43 to be supplied with liquid in a timely and sufficient manner, and also avoid the phenomenon of liquid leakage.

[0073] Please refer to Figure 6 and Figure 8 , where Figure 8 is Figure 6 a schematic exploded view of the atomization sleeve in the atomization core shown.

[0074] The atomizing sleeve 41 includes a first sleeve 411 and a second sleeve 412. The second sleeve 412 is sleeved inside the first sleeve 411 and has an interference fit therewith. The first sleeve 411 is provided with a first liquid inlet 413, and the second sleeve 412 is provided with a second liquid inlet 414. The first liquid inlet 413 and the second liquid inlet 414 overlap to form a liquid inlet 401. An air exchange groove 415 is formed on the tube wall of the second sleeve 412. Wherein, the inner wall surface of the first sleeve 411 and the outer side surface of the liquid absorbing member 42 respectively cover the inner and outer sides of the air exchange groove 415, and cooperate with the air exchange groove 415 to form an air exchange channel, and this air exchange channel communicates the atmosphere with the second liquid inlet 414.

[0075] Specifically, this air exchange channel communicates with the atomizing channel 401 of the atomizing core 40, and can supplement air into the first cavity 101 through the air exchange channel when the air pressure in the first cavity 101 is unbalanced, so as to avoid insufficient liquid supply caused by too low air pressure in the first cavity 101 and losing the liquid supply ability to the atomizing core 40.

[0076] The air exchange groove 415 is a through groove on the tube wall of the second sleeve 412, that is, it penetrates the tube wall of the second sleeve 412. Therefore, the process of forming the air exchange groove 415 on the tube wall of the second sleeve 412 is simple, the processing efficiency is high, and the processing time is greatly saved and the processing efficiency is improved.

[0077] By setting the atomizing sleeve 41 into the first sleeve 411 and the second sleeve 412 that can have an interference fit, the air exchange groove 415 can be conveniently formed on the second sleeve 412, and through the cooperation with the inner wall surface of the first sleeve 411 and the outer side surface of the liquid absorbing member 42, an air exchange channel for air exchange can be formed. Compared with directly processing this air exchange groove 415 on the atomizing base, the scheme of forming the air exchange channel adopted in this application has higher processing efficiency and lower cost.

[0078] The air exchange groove 415 is arranged on the second sleeve 412 and is covered by the liquid absorbing member 42, which can effectively avoid the situation that the air exchange effect is poor due to the air exchange groove 415 being filled with the liquid aerosol matrix.

[0079] In this embodiment, an air exchange groove 415 communicating with the second liquid inlet 414 is formed on the tube wall of the second sleeve 412, that is, one end port of the air exchange groove 415 directly communicates with the second liquid inlet 414, and the air exchange channel directly conducts air exchange through the second liquid inlet 414, which can greatly improve its air exchange efficiency and reduce the air exchange difficulty.

[0080] Optionally, the air exchange groove 415 is isolated from the second liquid inlet 414, and air exchange is carried out through the liquid absorbing member 42. That is, the air exchange groove 415 is not directly communicated with the second liquid inlet 414, and the air exchange channel also needs to rely on the liquid absorbing member 42 to exchange air to the first cavity 101. The inside of the liquid absorbing member 42 is a pore structure, and the entered gas exchanges air to the first cavity 101 along its pores.

[0081] Furthermore, both the first sleeve 411 and the second sleeve 412 are rigid tubes, which can effectively prevent the occurrence of events where the ventilation effect is damaged due to the deformation of the ventilation channel, and can better maintain the stability of the ventilation channel.

[0082] A plurality of liquid inlets 401 may be distributed at intervals along the circumferential direction of the atomizing sleeve 41. For each liquid inlet 401, it includes a first liquid inlet 413 and two second liquid inlets 414 corresponding to the first liquid inlet 413. The two second liquid inlets 414 are arranged at intervals along the axial direction of the wall of the second sleeve 412 and respectively correspond to the upper heating mesh 431 and the lower heating mesh 432. Among them, the ventilation groove 415 communicates with the second liquid inlet 414 corresponding to the upper heating mesh 431. The second liquid inlet 414 corresponding to the upper heating mesh 431 is partially exposed in the liquid through hole 201. Thus, the aerosol matrix at the liquid through hole 201 can flow quickly through the second liquid inlet 414 to the upper heating mesh 431 for the upper heating mesh 431 to atomize. The liquid storage member 30 can supply liquid to the lower heating mesh 432 through the lower second liquid inlet 414. Therefore, it not only avoids dry burning of the upper heating mesh 431 but also avoids liquid robbing between the upper heating mesh 431 and the lower heating mesh 432.

[0083] In this embodiment, the ventilation groove 415 communicates with the second liquid inlet 414 corresponding to the upper heating mesh 431, which can greatly shorten the path from the port of the ventilation groove 415 to the liquid through hole 201, making the ventilation smoother and being able to reduce the attenuation effect of the liquid storage member 30 on the ventilation effect.

[0084] Furthermore, the dimension of the first liquid inlet 413 along the circumferential direction of the first sleeve 411 is smaller than the dimension of the second liquid inlet 414 along the circumferential direction of the second sleeve 412. And the aerosol matrix flows to the liquid absorption member 42 only through the first liquid inlet 413 and the second liquid inlet 414 in sequence. By setting the relatively reduced-diameter first liquid inlet 413, the conduction rate of the aerosol matrix can be effectively restricted to make it have an appropriate liquid conduction rate.

[0085] The second sleeve 412 is provided with multiple groups of second liquid inlets 414 along the circumferential direction. The ventilation groove 415 is arranged between adjacent two groups of second liquid inlets 414. The ventilation groove 415 includes a first ventilation section 416 and a second ventilation section 417 that are connected. The first ventilation section 416 communicates with one side of the second liquid inlet 414 in the circumferential direction. The second ventilation section 417 extends along the axial direction of the second sleeve 412 to between the bottom of the second liquid inlet 414 corresponding to the lower heating mesh 431 and the end of the second sleeve 412.

[0086] By defining the position and path of the air exchange groove 415 as described above, the air exchange path can be effectively shortened and the air exchange efficiency can be improved. At the same time, the end of the second air exchange section 417 far from the first air exchange section 416 is between the bottom of the second liquid inlet 414 and the end of the second sleeve 412, and does not directly cut off the end of the second sleeve 412. Therefore, the second sleeve 412 can still maintain relatively good structural strength and avoid deformation, and can effectively maintain the stability of the air exchange channel.

[0087] Different from the prior art, the present application discloses an electronic atomization device, an atomizer, an atomization assembly and an atomization core thereof. By providing a first sleeve and a second sleeve that can be in interference fit with each other, and an air exchange groove can be conveniently formed on the second sleeve. Through the cooperation with the inner wall surface of the first sleeve and the outer side surface of the liquid absorption member, an air exchange channel for air exchange can be formed. Compared with arranging an air exchange groove on the atomization base, the solution for forming the air exchange channel adopted in the present application has higher processing efficiency and lower cost; further, the air exchange groove is arranged on the second sleeve and is covered by the liquid absorption member, and the liquid absorption member increases the adsorption force on the liquid existing in the air exchange groove, and can effectively avoid the situation that the air exchange effect is poor due to the air exchange groove being filled with the liquid aerosol matrix.

[0088] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present application.

Claims

1. An atomizer core, characterized in that: include: A first sleeve is provided with at least two first liquid inlets distributed along the circumferential direction; A second sleeve is sleeved in the first sleeve and has an interference fit with the first sleeve, the second sleeve is provided with at least two second liquid inlets distributed along the circumferential direction, the second sleeve is also provided with a ventilation groove, and the first liquid inlet and the second liquid inlet overlap; a liquid absorbing member, which is accommodated in the second sleeve and covers the second liquid inlet and a part of the ventilation groove, wherein the air inlet end of the ventilation groove is exposed in the second sleeve and is not covered by the liquid absorbing member; A heating element, arranged on a side of the liquid absorbing element away from the second sleeve; The inner wall surface of the first sleeve and the outer side surface of the liquid absorbing member respectively cover the inner and outer sides of the ventilation groove, and cooperate with the ventilation groove to form a ventilation channel.

2. The atomizer core according to claim 1, characterized in that: The ventilation groove is isolated from the second liquid inlet, and ventilation is performed through the liquid absorbing member.

3. The atomizer core according to claim 1, characterized in that: The ventilation groove is connected to the second liquid inlet, and the ventilation channel is ventilated directly through the second liquid inlet.

4. The atomizer core according to claim 3, characterized in that: The tube wall of the second sleeve is provided with two second liquid inlets spaced apart in the axial direction to correspond to the upper heating network and the lower heating network respectively, and the ventilation groove is connected to the second liquid inlet corresponding to the upper heating network.

5. The atomizer core according to claim 4, characterized in that: A dimension of the first liquid inlet along the circumference of the first sleeve is smaller than a dimension of the second liquid inlet along the circumference of the second sleeve.

6. The atomizer core according to claim 4, characterized in that: The second sleeve is provided with multiple groups of the second liquid inlets along the circumferential direction, and the ventilation groove is provided between two adjacent groups of the second liquid inlets. The ventilation groove includes a first ventilation section and a second ventilation section that are connected to each other. The first ventilation section is connected to one side of the second liquid inlet in the circumferential direction, and the second ventilation section extends along the axial direction of the second sleeve to between the bottom of the second liquid inlet corresponding to the lower heating network and the end of the second sleeve.

7. The atomizer core according to claim 1, characterized in that: The first sleeve and the second sleeve are both rigid tubes.

8. An atomizing assembly, characterized in that: The atomizer assembly comprises a shell, a liquid storage component and an atomizer core as claimed in any one of claims 1 to 7, wherein the atomizer core is installed in the shell, the liquid storage component is arranged in the shell and around the atomizer core, and a liquid through hole is provided at the top of the shell.

9. An atomizer, characterized in that: The atomizer comprises a housing assembly and the atomizing assembly as claimed in claim 8, wherein the atomizing assembly is detachably mounted on the housing assembly.

10. An electronic atomization device, characterized in that: The electronic atomization device comprises a host and the atomizer as claimed in claim 9, wherein the host is connected to the atomizer and supplies power to the atomizer.

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