Electronic cigarette atomization component, preparation method of atomization core and electronic cigarette

Abstract

The present application discloses an electronic cigarette atomization component, a method for preparing an atomization core, and an electronic cigarette. The electronic cigarette atomization component comprises: a shell, wherein the shell has a liquid storage chamber and an atomization chamber, and the shell is provided with an air outlet channel, wherein the atomization chamber is connected to the air outlet channel; an atomization core, wherein the atomization core is arranged in the shell, wherein the atomization core comprises a porous body and a heating element, wherein the porous body has a liquid absorption surface and an atomization surface arranged opposite to each other, wherein the liquid absorption surface is connected to the liquid storage chamber, wherein the atomization surface is connected to the atomization chamber, and wherein the heating element is arranged on the atomization surface; wherein a first sealing layer is arranged on at least part of the outer surface of the porous body, and a second sealing layer is arranged on at least part of the outer surface of the first sealing layer, wherein the second sealing layer contacts the inner wall surface of the shell to form a seal, and wherein the hardness of the first sealing layer is greater than that of the second sealing layer.

Description

Technical Field

[0001] The present application relates to the technical field of electronic cigarettes, and more specifically, to an atomization assembly of an electronic cigarette, a method for preparing an atomization core, and an electronic cigarette. Background Art

[0002] Electronic cigarettes generally include a power supply component and an atomizer. After the power supply component supplies power to the atomizer, the atomizer heats the e-cigarette liquid and atomizes it. The e-cigarette liquid is then converted into mist and inhaled by the user. When the user smokes an electronic cigarette, they feel like "smoking clouds and puffing out smoke" similar to smoking a cigarette. In recent years, electronic cigarettes have been favored by consumers for their convenience and low harm to the body.

[0003] In the field of e-cigarettes, technical points that affect the user experience include the speed and uniformity of the e-liquid soaking into the atomizer core, the degree to which the e-liquid is fully atomized, and whether the heating component of the atomizer can be started in time.

[0004] In the prior art, the atomizer core is usually made of porous materials to absorb the e-liquid. The porous material has the ability to absorb and conduct liquids. Generally, the atomizer core seal is assembled around the atomizer core to achieve the peripheral sealing of the atomizer core. The assembly of the atomizer core seal and the atomizer core may cause e-liquid leakage due to the matching tolerance of each part and the roughness of the ceramic surface.

[0005] Therefore, it is necessary to improve the internal structure of the electronic cigarette. Summary of the invention

[0006] One purpose of the present application is to provide a new technical solution for an electronic cigarette atomization component, which can solve the technical problem of poor sealing effect between the porous body and the shell in the prior art.

[0007] Another object of the present application is to provide a method for preparing an atomizer core of an electronic cigarette atomizer assembly.

[0008] Another object of the present application is to provide an electronic cigarette.

[0009] According to a first aspect of the present application, an electronic cigarette atomization component is provided, comprising: a shell, wherein a liquid storage chamber and an atomization chamber are provided in the shell, an air outlet channel is provided on the shell, and the atomization chamber is connected to the air outlet channel; an atomization core, wherein the atomization core is arranged in the shell, the atomization core comprises a porous body and a heating element, the porous body has a liquid absorption surface and an atomization surface which are arranged opposite to each other, the liquid absorption surface is connected to the liquid storage chamber, the atomization surface is connected to the atomization chamber, and the heating element is arranged on the atomization surface; a first sealing layer is provided on at least part of the outer surface of the porous body, a second sealing layer is provided on at least part of the outer surface of the first sealing layer, the second sealing layer contacts with the inner wall surface of the shell to form a seal, and the hardness of the first sealing layer is greater than the hardness of the second sealing layer.

[0010] According to one embodiment of the present application, a ventilation channel is provided on the first sealing layer, one end of the ventilation channel is connected to the liquid storage chamber, and the other end of the ventilation channel is connected to the atomization chamber, and the ventilation channel is used to adjust the pressure difference between the pressure of the liquid storage chamber and the external atmospheric pressure.

[0011] According to an embodiment of the present application, the ventilation channel is a through hole that penetrates the first sealing layer along an extension direction from the liquid absorption surface to the atomization surface.

[0012] According to an embodiment of the present application, the ventilation channel is a groove provided on the outer surface of the first sealing layer, and the groove penetrates the first sealing layer along an extension direction from the atomization surface to the liquid absorption surface.

[0013] According to an embodiment of the present application, there are multiple ventilation channels, and the multiple ventilation channels are arranged at intervals on the outer surface of the first sealing layer.

[0014] According to an embodiment of the present application, the porous body has an outer peripheral surface connecting the atomization surface and the liquid absorption surface, and the first sealing layer includes a plurality of sealing segments, and the plurality of sealing segments are arranged at intervals on the outer peripheral surface of the porous body.

[0015] According to one embodiment of the present application, the porous body has an outer peripheral surface connecting the atomization surface and the liquid absorption surface, the outer peripheral surface of the porous body is provided with a protrusion, the first sealing layer has a groove, the first sealing layer is injection molded on the outside of the protrusion, and the protrusion is located in the groove.

[0016] According to one embodiment of the present application, the second sealing layer and the first sealing layer are integrally formed.

[0017] According to an embodiment of the present application, the porous body has an outer peripheral surface connecting the atomization surface and the liquid absorption surface, and the second sealing layer covers the first sealing layer and the outer peripheral surface exposed on the first sealing layer.

[0018] According to one embodiment of the present application, the second sealing layer includes: a first sealing portion, a first side of the first sealing portion is connected to the first sealing layer or the outer surface, a second side of the first sealing portion is connected to the inner wall surface of the shell, and the first sealing portion and the groove are enclosed to form the ventilation channel; a second sealing portion, the second sealing portion is connected to the edge of the first sealing portion, and the second sealing portion is arranged opposite to the liquid absorption surface; wherein, when the air pressure in the liquid storage chamber is greater than or equal to the external atmospheric pressure, the second sealing portion is in contact with the liquid absorption surface, and the second sealing portion can close the ventilation channel; when the air pressure in the liquid storage chamber is less than the external atmospheric pressure, there is a gap between the second sealing portion and the liquid absorption surface, the gap is connected to the ventilation channel, and the second sealing portion can open the ventilation channel.

[0019] According to an embodiment of the present application, an outer surface of the second sealing layer is provided with elastic ribs, and the elastic ribs abut against the inner wall surface of the shell.

[0020] According to an embodiment of the present application, the electronic cigarette atomization assembly further includes: a lower cover, the lower cover is arranged at one end of the shell away from the air outlet channel, the area between the lower cover and the atomization surface of the porous body constitutes the atomization chamber, and the lower cover supports the atomization core; an electrical connector, the electrical connector is electrically connected to the heating element; an air inlet channel is arranged on the lower cover, and the air inlet channel is connected to the atomization chamber;

[0021] The lower cover is provided with a conductive member, and the conductive member is electrically connected to the electrical connector.

[0022] According to an embodiment of the present application, the second sealing layer is provided with a supporting portion, and the supporting portion and the heating element are staggered on the atomization surface.

[0023] According to one embodiment of the present application, a pad is provided on the support portion, a limiting groove is formed on the pad, the electrical connector has a first section and a second section, the first section of the electrical connector is electrically connected to the heating element, and the second section of the electrical connector is embedded in the limiting groove and electrically connected to the conductive member.

[0024] According to one embodiment of the present application, the limiting groove and the electrical connector are interference fit.

[0025] According to an embodiment of the present application, the pad protrudes from the supporting portion, and the pad and the conductive member are located on both sides of the second section and are respectively in abutment with the second section.

[0026] According to the second aspect of the present application, a method for preparing an atomization core of the above-mentioned electronic cigarette atomization component is also provided, comprising the following steps: preparing a porous body, the porous body having a liquid absorption surface and an atomization surface; arranging a heating element on the atomization surface of the porous body; and forming an integrated structure with a first sealing layer and a second sealing layer by two-color injection molding at least a portion of the surface of the porous body, a first sealing layer is provided on at least a portion of the outer surface of the porous body, and a second sealing layer is provided on at least a portion of the outer surface of the first sealing layer, and the hardness of the first sealing layer is greater than the hardness of the second sealing layer.

[0027] According to the third aspect of the present application, an electronic cigarette is also provided, comprising: the electronic cigarette atomization component described in any of the above embodiments; a cigarette rod device, wherein an electrical component is arranged in the cigarette rod device, the electrical component is electrically connected to the heating element, the electrical component is configured to supply power to the heating element, an air inlet is formed on the cigarette rod device, the air inlet is connected to the atomization chamber; the cigarette rod device and the electronic cigarette atomization component are detachably connected to each other.

[0028] According to an embodiment of the present disclosure, by providing a first sealing layer and a second sealing layer on the porous body, the atomizer core can be directly installed in the shell during installation, without the need to set a circle of sealing between the atomizer core and the shell, so that a sealed connection between the atomizer core and the inner wall surface of the shell can be achieved. In addition, by combining a harder first sealing layer with a softer second sealing layer, the lower shrinkage rate of the first sealing layer and the second sealing layer can be utilized to improve the dimensional accuracy of the atomizer core, thereby improving the sealing effect between the atomizer core and the shell.

[0029] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0031] Figure 1 This is a structural schematic diagram of an angle of the atomization core of the electronic cigarette atomization assembly provided by the present application;

[0032] Figure 2 This is a structural schematic diagram of the atomizer core of the electronic cigarette atomizer assembly provided by the present application from another angle;

[0033] Figure 3 This is a structural schematic diagram of the atomizer core of the electronic cigarette atomizer assembly provided by the present application from another angle;

[0034] Figure 4It is a schematic diagram of the side cross-sectional structure of the atomizer core of the electronic cigarette atomizer assembly provided by the present application;

[0035] Figure 5 It is a schematic diagram of the side cross-sectional structure of the electronic cigarette atomizer assembly provided by the present application;

[0036] Figure 6 It is an exploded view of the electronic cigarette atomization component provided by this application.

[0037] Reference numerals

[0038] Electronic cigarette atomization component 100;

[0039] Shell 10; air outlet channel 11; liquid storage chamber 12; atomization chamber 13;

[0040] Atomizer core 20;

[0041] Porous body 21; liquid absorption surface 211; atomization surface 212; outer peripheral surface 213; protrusion 214;

[0042] First sealing layer 22; ventilation channel 221; groove 222;

[0043] The second sealing layer 23; the first sealing portion 231; the second sealing portion 232; the elastic rib 233; the supporting portion 234; the pad 235; the limiting groove 236;

[0044] Heating element 24;

[0045] Electrical connector 25; first section 251; second section 252;

[0046] Lower cover 30; air intake passage 31;

[0047] The conductive member 40 . DETAILED DESCRIPTION

[0048] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0049] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0050] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0051] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0052] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0053] like Figures 1 to 6 As shown, the electronic cigarette atomization assembly 100 provided by the present solution includes a shell 10 and an atomization core 20 .

[0054] Specifically, the housing 10 has a liquid storage chamber 12 and an atomizing chamber 13, the housing 10 is provided with an air outlet channel 11, the atomizing chamber 13 is communicated with the air outlet channel 11, the atomizing core 20 is arranged in the housing 10, the atomizing core 20 includes a porous body 21 and a heating element 24, the porous body 21 has a liquid absorption surface 211 and an atomizing surface 212 arranged opposite to each other, the liquid absorption surface 211 is communicated with the liquid storage chamber 12, the atomizing surface 212 is communicated with the atomizing chamber 13, and the heating element 24 is arranged on the atomizing surface 212. A first sealing layer 22 is provided on at least part of the outer surface of the porous body 21, and a second sealing layer 23 is provided on at least part of the outer surface of the first sealing layer 22, the second sealing layer 23 contacts the inner wall surface of the housing 10 to form a seal, and the hardness of the first sealing layer 22 is greater than the hardness of the second sealing layer 23.

[0055] In other words, if Figure 5 and Figure 6 As shown, the housing 10 has a liquid storage chamber 12 and an atomization chamber 13. The liquid storage chamber 12 is used to store tobacco oil. The housing 10 is provided with an air outlet channel 11, and the atomization chamber 13 is connected to the air outlet channel 11. The air outlet channel 11 can be connected to the outside atmosphere. The tobacco liquid in the liquid storage chamber 12 is atomized to form smoke and enters the air outlet channel 11 through the atomization chamber 13 to be inhaled by the user.

[0056] The atomizer core 20 is arranged in the shell 10. The atomizer core 20 includes a porous body 21 and a heating element 24. The porous body 21 is used to infiltrate and absorb smoke liquid. The porous body 21 has a liquid absorption surface 211 and an atomization surface 212. The liquid absorption surface 211 is connected to the liquid storage chamber 12 so as to contact and absorb the liquid in the liquid storage chamber 12. The atomization surface 212 is connected to the atomization chamber 13, and the heating element 24 is arranged on the atomization surface 212. When the heating element 24 generates heat, it can heat and atomize the smoke liquid conducted from the porous body 21 to the atomization surface 212, forming smoke that enters the atomization chamber 13, and enters the air outlet channel 11 through the atomization chamber 13, so as to be inhaled by the user.

[0057] The liquid absorption surface 211 and the atomization surface 212 are arranged opposite to each other. It should be noted that the relative position relationship between the liquid absorption surface 211 and the atomization surface 212 includes but is not limited to being opposite to each other. By arranging the liquid absorption surface 211 and the atomization surface 212 opposite to each other, it is convenient to reduce the volume of the porous body 21 and simplify the preparation process of the porous body 21.

[0058] The porous body 21 is provided with micropores on the surface and inside of the porous body 21, which can absorb and transfer liquids. The porous body 21 is a material with holes, such as a ceramic porous body.

[0059] The first sealing layer 22 is a layer structure formed by using a hard material on at least part of the outer surface of the porous body 21 by injection molding or the like. The hard material may be a dense body such as hard glue, and the hard glue may be plastic. By forming the hard first sealing layer 22 by injection molding on the outer surface of the porous body 21, not only the surface strength of the porous body 21 can be improved, but also the bonding force between the first sealing layer 22 and the outer surface of the porous body 21 can be improved. In addition, under the condition that the porosity of the first sealing layer 22 is lower than the porosity of the porous body 21, the penetration of smoke oil in the contact part between the porous body 21 and the shell 10 can be effectively reduced, thereby improving the sealing between the porous body 21 and the shell 10.

[0060] The second sealing layer 23 is a layer structure formed by a soft material on at least part of the outer surface of the first sealing layer 22 by injection molding or the like. The soft material may be a dense body such as soft glue. Since the second sealing layer 23 is made of a soft material, when the second sealing layer 23 contacts the inner wall surface of the shell 10, not only can the sealing effect between the second sealing layer 23 and the inner wall surface of the shell 10 be ensured, but also the hard inner wall surface of the shell 10 can be prevented from causing wear to the outer surface of the porous body 21. Specifically, the soft second sealing layer 23 has a sealing function, which can prevent the smoke oil from seeping from the liquid storage chamber 12 to the atomization chamber 13, and can also prevent the smoke oil on the side of the atomization core 20 from being sucked into the user's mouth, which can better meet the customer's use and testing requirements and improve the user's comprehensive use experience.

[0061] When the first sealing layer 22 and the second sealing layer 23 are arranged on the outer surface by injection molding or other processes, the atomizer core 20 can become a structure having both holes and sealing effects. The surface strength of the atomizer core 20 is enhanced by arranging the first sealing layer 22 and the second sealing layer 23, and the powder falling phenomenon caused by the assembly (friction, extrusion, etc.) and use (extrusion, vibration, etc.) process is reduced.

[0062] During installation, the atomizer core 20 can be directly installed in the housing 10. The second sealing layer 23 has a sealing function, and there is no need to add an atomizer core seal, thereby reducing the number of parts and saving component manufacturing costs. That is, in actual application, the edge of the atomizer core 20 can be sealed without cooperating with other components to prevent the penetration of smoke oil.

[0063] It should be noted that the outer contour of the porous body 21 is relatively rough. When the porous body 21 is directly assembled in the shell 10, there is a large gap between the porous body 21 and the shell 10, which may cause oil leakage between the side wall of the porous body 21 and the inner wall of the shell 10.

[0064] In addition, the porous body 21 needs to be injected and then sintered during production. The molding temperature of the porous body 21 is approximately 800°C-900°C, and cold shrinkage is required after molding. During the cold shrinkage process, the porous body 21 has a large shrinkage rate and a large deformation amount.

[0065] However, for hard materials, such as plastic, the shrinkage rate of plastic is relatively small when the plastic is injected onto the outer surface of the porous body 21, so that the final atomizer core 20 has high dimensional accuracy, and thus the atomizer core 20 and the housing 10 have a better sealing effect when they are in contact and sealed.

[0066] The existing method of adding a sealing ring to the outer circumference of the atomizer core not only has the disadvantages of occupying a large space and being inconvenient to assemble, but also has the disadvantage that it is difficult to overcome the large deformation of the porous body 21 through the sealing ring, resulting in a poor local sealing effect.

[0067] In comparison, in the present application, the porous body 21 is placed on a mold to form a first sealing layer 22 and a second sealing layer 23, and the shrinkage rates of the soft glue and the hard glue are very small.

[0068] Therefore, according to the electronic cigarette atomizer assembly 100 of the embodiment of the present application, the atomizer core 20 is a composite material combination mainly composed of a porous body 21, a first sealing layer 22 and a second sealing layer 23. When assembling, it is only necessary to use the atomizer core 20 and the shell 10 to achieve sealing. The components in the shell 10 occupy less space, ensuring the sealing between the atomizer core 20 and the shell 10, simplifying the assembly process and assembly difficulty of the electronic cigarette. In addition, by combining the harder first sealing layer 22 and the softer second sealing layer 23, the lower shrinkage rate of the first sealing layer 22 and the second sealing layer 23 can be used to improve the dimensional accuracy of the atomizer core 20, thereby improving the sealing effect between the atomizer core 20 and the shell 10.

[0069] Alternatively, if Figures 1 to 4As shown, a ventilation channel 221 is provided on the first sealing layer 22, one end of the ventilation channel 221 is connected to the liquid storage chamber 12, and the other end of the ventilation channel 221 is connected to the atomization chamber 13. The ventilation channel 221 is used to adjust the pressure difference between the pressure of the liquid storage chamber 12 and the external atmospheric pressure, that is, the ventilation channel 221 is used to add gas to the liquid storage chamber 12. After the liquid in the liquid storage chamber 12 flows into the porous body 21, the air pressure in the liquid storage chamber 12 decreases, which will hinder the liquid from further penetrating into the porous body 21. The ventilation channel 221 plays a role at this time. After the air pressure in the liquid storage chamber 12 decreases, air can flow from the ventilation channel 221 into the liquid storage chamber 12 to achieve air pressure balance.

[0070] Specifically, a ventilation channel 221 is provided on the first sealing layer 22, wherein a first end of the ventilation channel 221 can be communicated with the outside atmosphere, and a second end of the ventilation channel 221 can be communicated with the liquid storage chamber 12. When the user inhales, the sensor in the electronic cigarette atomizer assembly 100 can be triggered, which can drive the heating element 24 to start heating, and the tobacco oil on the atomization surface 212 can be heated and atomized, and the formed aerosol can enter the air outlet channel 11 of the electronic cigarette atomizer assembly 100 for the user to inhale.

[0071] After the liquid on the porous body 21 is atomized, the porous body 21 will continue to absorb liquid from the liquid storage chamber 12. After the liquid in the liquid storage chamber 12 is gradually reduced, the air pressure in the liquid storage chamber 12 will drop, which is easy to form a negative pressure, making it difficult for the smoke oil in the liquid storage chamber 12 to flow to the liquid absorption surface 211. In other words, during the user's inhalation process, the negative pressure generated inside the liquid storage chamber 12 is difficult to restore the internal and external pressure difference balance through the circulation of gas, which is prone to problems such as poor oil supply and sticking. Therefore, the embodiment of the present application sets a ventilation channel 221 on the first sealing layer 22, so that the external gas can enter the liquid storage chamber 12 through the ventilation channel 221, so that the air pressure in the liquid storage chamber 12 is balanced with the external air pressure, so that the liquid in the liquid storage chamber 12 can flow smoothly to the liquid absorption surface 211.

[0072] It should be noted that since the first sealing layer 22 is made of hard plastic or other materials, holes are opened in the first sealing layer 22. On the one hand, this avoids the porous body 21 from rupturing when the ventilation channel 221 is opened on the porous body 21, or the powdered material of the porous body 21 enters the ventilation channel 221, causing the ventilation channel 221 to be blocked. On the other hand, this avoids the ventilation channel 221 from being easily skewed during the opening process when the ventilation channel 221 is opened on the second sealing layer 23 made of soft material.

[0073] In addition, the ventilation channel 221 is opened on the hard plastic, and since the hard plastic is relatively smooth, it is convenient to use the first sealing layer 22 or other structures to seal the ventilation channel 221. In the prior art, the ventilation channel 221 is opened on the porous body 21, and the surface of the porous body 21 is relatively rough. When the ventilation channel 221 is sealed by the first sealing layer 22 or other structures, the sealing effect is not good.

[0074] Furthermore, when the first sealing layer 22 is bonded to the porous body 21 and the second sealing layer 23 is bonded to the first sealing layer 22 by injection molding or the like, the liquid dense body can be filled in the microporous structure of the porous body 21, thereby improving the bonding force between the two. However, in the prior art solution of the assembly structure using a sealing ring, the sealing ring cannot fill the microporous structure, and the sealing effect between the two is poor.

[0075] Optionally, the ventilation channel 221 is a through hole that penetrates the first sealing layer 22 along the extension direction from the liquid absorption surface 211 to the atomization surface 212. In other words, the ventilation channel 221 is a through hole that penetrates the first sealing layer 22 along the extension direction from the liquid absorption surface 211 to the atomization surface 212. The ventilation channel 221 can be arranged on the first sealing layer 22 and spaced apart from the outer peripheral surface 213 of the first sealing layer 22, and a through hole structure can be formed between the liquid absorption surface 211 and the atomization surface 212.

[0076] By setting the extension direction of the ventilation channel 221 to be along the extension direction from the liquid absorption surface 211 to the atomization surface 212 and penetrating the first sealing layer 22 , the time required for the external gas to flow into the liquid storage chamber 12 can be shortened.

[0077] According to one embodiment of the present application, Figure 4 As shown, the ventilation channel 221 is a groove 222 provided on the outer surface of the first sealing layer 22 , and the groove 222 penetrates the first sealing layer 22 along the extending direction from the atomization surface 212 to the liquid absorption surface 211 .

[0078] Specifically, the ventilation channel 221 is a groove 222 provided on the outer surface of the first sealing layer 22, and the groove 222 penetrates the first sealing layer 22 along the extension direction from the atomizing surface 212 to the liquid absorption surface 211. In other words, a groove 222 with an opening is provided on the outer surface of the first sealing layer 22, and a through groove structure can be formed between the liquid absorption surface 211 and the atomizing surface 212. The inner wall surface of the groove 222 can cooperate with the inner wall surface of the second sealing layer 23 to form the ventilation channel 221.

[0079] Alternatively, if Figure 4As shown, there are multiple ventilation channels 221, and the multiple ventilation channels 221 are arranged at intervals on the outer surface of the first sealing layer 22. When the number of the ventilation channel 221 is one, the ventilation channel 221 can be arranged on the outer surface of the first sealing layer 22.

[0080] When there are multiple ventilation channels 221 , the multiple ventilation channels 221 can be spaced apart and distributed on the outer surface of the first sealing layer 22 . By increasing the number of ventilation channels 221 , the rate of balancing the internal and external air pressures can be further increased.

[0081] Alternatively, if Figure 1 As shown, the porous body 21 has an outer peripheral surface 213 connecting the atomization surface 212 and the liquid absorption surface 211, and the first sealing layer 22 is a ring-shaped member, and the first sealing layer 22 is arranged in an annular shape on the outer peripheral surface 213, that is, the first sealing layer 22 extends circumferentially around the outer peripheral surface 213, which can greatly increase the sealing effect between the outer peripheral surface 213 and the shell 10, and avoid local oil leakage between the outer peripheral surface 213 and the shell 10.

[0082] In some specific embodiments of the present application, Figure 4 As shown, the porous body 21 has an outer peripheral surface 213 connecting the atomization surface 212 and the liquid absorption surface 211, and the first sealing layer 22 includes a plurality of sealing segments, and the plurality of sealing segments are arranged at intervals on the outer peripheral surface 213 of the porous body 21. In other words, the first sealing layer 22 may include a plurality of sealing segments, and each sealing segment may be formed on the outer peripheral surface 213 by injection molding or the like. There is a gap between two adjacent sealing segments. The number of sealing segments may be 2 or more, and may be an even number or an odd number, which is not limited here. By using a plurality of sealing segments in coordination, the space occupied by the first sealing layer 22 can be reduced, and the space occupied by the porous body 21 can be correspondingly expanded, so that more smoke oil can be processed at the same time.

[0083] Optionally, the porous body 21 has an outer peripheral surface 213 connecting the atomization surface 212 and the liquid absorption surface 211, and the outer peripheral surface 213 of the porous body 21 is provided with a protrusion 214, and the first sealing layer 22 has a groove 222. The first sealing layer 22 is formed on the outside of the protrusion 214 by injection molding. After molding, the protrusion 214 is located in the groove 222. That is to say, when the atomization core 20 is produced, the protrusion 214 can be provided on the porous body 21, and then the first sealing layer 22 is formed around the protrusion 214 by injection molding. For example, the porous body 21 is roughly a rectangular piece, and a protrusion 214 protruding from the short side is provided on the short side of the porous body 21. During production, the first sealing layer 22 is injection molded on the outside of the protrusion 214, and the first sealing layer 22 after molding is formed with a groove 222, and the protrusion 214 is inserted into the groove 222. It should be noted that the porous body 21 and the first sealing layer 22 after molding can cooperate to form a complete rectangular-like part, which is conducive to injection molding the second sealing layer 23 on the first sealing layer 22 and the outer peripheral surface 213 except the position of the first sealing layer 22. Optionally, the first sealing layer 22 is a U-shaped part. The outer peripheral surface 213 of the first sealing layer 22 and the outer peripheral surface 213 of the porous body 21 have a smooth transition, which is conducive to injection molding the second sealing layer 23.

[0084] According to one embodiment of the present application, the second sealing layer 23 and the first sealing layer 22 are integrally formed. By adopting an integral forming process, it is not only beneficial to improve the bonding force between the first sealing layer 22 and the second sealing layer 23, but also can simplify the production and processing process of the first sealing layer 22 and the second sealing layer 23, which is beneficial to combine the porous body 21, the first sealing layer 22 and the second sealing layer 23 into an integrally formed part.

[0085] Optionally, the porous body 21 has an outer peripheral surface 213 connecting the atomization surface 212 and the liquid absorption surface 211, and the second sealing layer 23 covers the first sealing layer 22 and the outer peripheral surface 213 exposed on the first sealing layer 22. That is to say, the first sealing layer 22 can partially cover the outer peripheral surface 213 of the porous body 21, or it can completely cover the outer peripheral surface 213 of the porous body 21. When the first sealing layer 22 partially covers the outer peripheral surface 213 of the porous body 21, the outer peripheral surface 213 of the porous body 21 can be divided into a first area and a second area, wherein the first area is an area covered by the first sealing layer 22, and the second area is an area not covered by the first sealing layer 22, and the outer peripheral surface 213 of the porous body 21 is exposed from the second area. At this time, the second sealing layer 23 can not only cover the first area but also the second area. When the first sealing layer 22 completely covers the outer peripheral surface 213 of the porous body 21, the second sealing layer 23 can cover the first sealing layer 22. That is to say, the first sealing layer 22 may be an annular member, which can effectively prevent local leakage from occurring at the connection portion between the atomizer core 20 and the inner wall of the housing 10 .

[0086] According to one embodiment of the present application, Figure 4 As shown, the second sealing layer 23 includes: a first sealing portion 231 and a second sealing portion 232, wherein a first side of the first sealing portion 231 is connected to the first sealing layer 22 or an outer surface, and a second side of the first sealing portion 231 is connected to the inner wall surface of the housing 10. For example, on the basis that the porous body 21 has an outer peripheral surface 213 connecting the liquid absorption surface 211 and the atomization surface 212, when the first sealing layer 22 is provided on a part of the outer peripheral surface 213 of the porous body 21, at this time, the inner surface of a part of the first sealing portion 231 can be connected to the first sealing layer 22, and the outer surface can contact and seal with the inner wall surface of the housing 10. The inner surface of another part of the first sealing portion 231 can be connected to the outer peripheral surface 213 of the porous body 21, and the outer surface can contact and seal with the inner wall surface of the housing 10. When the first sealing layer 22 covers the entire outer circumferential surface 213 of the porous body 21 , the inner surface of the first sealing portion 231 may be connected to the outer circumferential surface 213 of the porous body 21 , and the outer surface may contact and seal with the inner wall surface of the housing 10 .

[0087] Alternatively, if Figure 1 and Figure 4 As shown, the first sealing portion 231 and the groove 222 enclose the ventilation channel 221 , that is, the first sealing portion 231 can be arranged opposite to the position of the groove 222 , and the inner surface of the first sealing portion 231 can enclose the ventilation channel 221 with the inner wall surface of the groove 222 .

[0088] The second sealing portion 232 is butted against the edge of the first sealing portion 231, and the second sealing portion 232 is disposed opposite to the liquid absorption surface 211. For example, when the outer peripheral surface 213 of the atomizer core 20 extends in the up-down direction, the liquid absorption surface 211 may be located above the atomization surface 212, the first sealing portion 231 may extend substantially in the up-down direction, the outer edge of the second sealing portion 232 may be connected to the upper end of the first sealing portion 231, and the inner edge of the second sealing portion 232 may extend toward the center of the atomizer core 20.

[0089] Among them, when the air pressure of the liquid storage chamber 12 is greater than or equal to the external atmospheric pressure, the second sealing part 232 is in contact with the liquid suction surface 211, and the second sealing part 232 can close the ventilation channel 221. When the air pressure of the liquid storage chamber 12 is less than the external atmospheric pressure, there is a gap between the second sealing part 232 and the liquid suction surface 211, the gap is connected to the ventilation channel 221, and the second sealing part 232 can open the ventilation channel 221. In other words, the second sealing part 232 is movable relative to the liquid suction surface 211 and can switch between two states. When the air pressure of the liquid storage chamber 12 is greater than or equal to the external atmospheric pressure, there is no need to replenish gas in the liquid storage chamber 12. At this time, the second sealing part 232 can be in contact with the liquid suction surface 211, thereby closing the ventilation channel 221. When the air pressure of the liquid storage chamber 12 is less than the external atmospheric pressure, the second sealing part 232 and the liquid suction surface 211 are separated to form a gap, the gap is connected to the ventilation channel 221, and the second sealing part 232 can open the ventilation channel 221.

[0090] That is to say, by providing the first sealing portion 231 and the second sealing portion 232 in cooperation with each other, not only the sealing effect between the housing 10 and the housing 10 can be achieved, but also the air pressure in the liquid storage chamber 12 can be adjusted.

[0091] It should be noted that when the second sealing layer 23 includes the first sealing portion 231 and the second sealing portion 232, the ventilation channel 221 can also be a through hole that penetrates the first sealing layer 22 along the extension direction from the liquid absorption surface 211 to the atomization surface 212. At this time, the second sealing portion 232 can also switch between two states to achieve the closing or opening of the ventilation channel 221. Compared with the solution of the second sealing portion 232 cooperating with the through hole, the second sealing portion 232 is matched with the groove 222. Since the groove 222 is closer to the combination position of the second sealing portion 232 and the first sealing portion 231, the ventilation channel 221 can be more effectively closed by the second sealing portion 232.

[0092] Alternatively, if Figure 1 As shown, the outer surface of the second sealing layer 23 is provided with an elastic convex rib 233, and the elastic convex rib 233 abuts against the inner wall surface of the housing 10. In other words, the elastic convex rib 233 abuts against the inner wall of the housing 10 to further increase the sealing structure between the outer side of the second sealing layer 23 and the inner wall of the housing 10, thereby improving the sealing effect between the second sealing layer 23 and the housing 10.

[0093] According to one embodiment of the present application, Figure 5 and Figure 6As shown, the electronic cigarette atomization assembly 100 also includes a lower cover 30 and an electrical connector 25. Among them, the lower cover 30 is arranged at one end of the housing 10 away from the air outlet channel 11, and the area between the lower cover 30 and the atomization surface 212 of the porous body 21 constitutes the atomization chamber 13. The lower cover 30 forms a support for the atomization core 20, and the electrical connector 25 is electrically connected to the heating element 24. An air inlet channel 31 is arranged on the lower cover 30, and the air inlet channel 31 is connected to the atomization chamber 13. A conductive member 40 is arranged on the lower cover 30, and the conductive member 40 is electrically connected to the electrical connector 25. The conductive member 40 can be an inverted T-shaped conductive nail. When the conductive member 40 is electrically connected to the electrical connector 25 and the power supply assembly of the electronic cigarette respectively, the current can flow to the electrical connector 25 through the conductive member 40, and finally flow to the heating element 24, so as to realize the heating element 24 to heat the atomization surface 212.

[0094] That is, the lower cover 30 is disposed in the housing 10, and the area between the lower cover 30 and the atomizing surface 212 of the porous body 21 can constitute the atomizing chamber 13, and the lower cover 30 can support the atomizing core 20. In an optional embodiment, the upper portion of the housing 10 is provided with an air outlet channel 11, and the lower portion of the housing 10 is open. The lower cover 30 is disposed at the lower portion of the housing 10.

[0095] According to an embodiment of the present application, a limiting portion is provided on the second sealing layer 23 on the side where the heating element 24 is provided on the porous body 21, that is, on the side of the atomizing surface 212, and the limiting portion is detachably connected to the electrical connector 25. The position of the electrical connector 25 can be limited by the limiting portion. The limiting portion can be a structure in which the limiting groove 236 can limit the position of the electrical connector 25.

[0096] In some specific embodiments of the present application, Figure 1 As shown, the second sealing layer 23 is provided with a support portion 234, and the support portion 234 and the heating element 24 are staggered on the atomizing surface 212. The support portion 234 can be used to define the position of the electrical connector 25. Optionally, the atomizing surface 212 is roughly rectangular, and the first sealing portion 231 of the second sealing layer 23 surrounds the edge of the atomizing surface 212. The number of the electrical connectors 25 is two, and the two electrical connectors 25 extend along the length direction of the atomizing surface 212. The support portion 234 is formed into a long strip, and the number of the support portion 234 can be two, and the two support portions 234 correspond to the two electrical connectors 25 one by one. One end of each support portion 234 is connected to a long side of the atomizing surface 212, and the other end of each support portion 234 is connected to another long side of the atomizing surface 212. That is, the support portion 234 is arranged relative to the wide side of the atomizing surface 212. It should be noted that by staggering the support portion 234 and the heating element 24 on the atomizing surface 212, the support portion 234 can be prevented from shielding the heating element 24. By designing the support portion 234 as a long strip, the support portion 234 can be prevented from shielding too much of the atomizing surface 212.

[0097] In addition, by setting the support portion 234 as a part of the second sealing layer 23, that is, the material of the support portion 234 is also a soft material, such as silicone, etc., it can be more resistant to high temperatures and avoid deformation or even melting of the atomized surface 212 due to heat.

[0098] According to an embodiment of the present application, the support portion 234 is snap-connected with the electrical connector 25 .

[0099] Alternatively, if Figure 1 As shown, a pad 235 is provided on the support portion 234, and a limiting groove 236 is formed on the pad 235. The electrical connector 25 has a first section 251 and a second section 252. The first section 251 of the electrical connector 25 is electrically connected to the heating element 24, and the second section 252 of the electrical connector 25 is embedded in the limiting groove 236 and is electrically connected to the conductive member 40.

[0100] In this embodiment, the limiting groove 236 forms a limiting effect on the second section 252, ensuring that the position of the second section 252 does not shift, and improving the reliability of the second section 252 abutting against the conductive member 40. For example, the second section 252 is embedded in the limiting groove 236, and the top of the conductive member 40 abuts against the second section 252 from the notch position of the limiting groove 236, so that the second section 252 is positioned in the limiting groove 236. It should be noted that, since the second sealing layer 23 is a soft material, the pad 235 is also a boss structure with elasticity, so that the pad 235 has a deformation function, which can further improve the positioning effect of the second section 252.

[0101] In some specific embodiments of the present application, the limiting groove 236 is interference-fitted with the electrical connector 25 , which can effectively improve the clamping force on the electrical connector 25 , and can improve the contact stability and reliability between the electrical connector 25 and the conductive member 40 .

[0102] According to one embodiment of the present application, Figure 5 As shown, the pad 235 protrudes from the supporting portion 234 , and the pad 235 and the conductive member 40 are located on both sides of the second section 252 and are respectively in contact with the second section 252 .

[0103] That is to say, the pad 235 and the conductive member 40 are located on both sides of the second section 252 and respectively form abutment with the second section 252. The pad 235 and the conductive member 40 can clamp the second section 252 in the middle so that the second section 252 is fixed. In this way, it can be ensured that the second section 252 is in effective contact with the conductive member 40, so that the current on the conductive member 40 can be transmitted to the heating element 24 through the second section 252. It should be noted that since the second sealing layer 23 is a soft material, the pad 235 is also a boss structure with elasticity, so that the pad 235 has a deformation function. When the pad 235 and the conductive member 40 are respectively abutted against the second section 252, the electrical connection stability between the conductive member 40 and the second section 252 can be further improved.

[0104] In addition, the smoke aerosol that is not sucked out will form condensed liquid droplets after cooling. Since the internal space of the electronic cigarette atomizer assembly 100 is enlarged, a component for collecting condensed liquid droplets can be provided to reduce the possibility of condensed liquid droplets leaking from the electronic cigarette.

[0105] For example, when the air entering the air inlet channel 31 meets the smoke in the atomizing chamber 13, some smoke may not be sucked out and condense into droplets. The condensed droplets can be absorbed by the oil absorber disposed on the lower cover 30 to prevent the droplets from leaking out of the air inlet channel 31.

[0106] Optionally, the housing 10 has support ribs to support and fix the atomizer core 20; the lower cover 30 can be fixed to the housing 10 by snaps, and the end faces of the support ribs around the lower cover 30 support and fix the atomizer core 20. This structural design is simple and reliable, thereby increasing the space of the atomizer chamber 13.

[0107] The present application provides a method for preparing the atomizer core 20 of the electronic cigarette atomizer assembly 100, and the preparation method comprises the following steps:

[0108] A porous body 21 is prepared. The porous body 21 has a liquid absorption surface 211 and an atomization surface 212. The porous body 21 can be formed by sintering a ceramic material, and has a microporous structure inside and on the surface.

[0109] A heating element 24 is disposed on the atomizing surface 212 of the porous body 21. The heating element 24 can be disposed on the atomizing surface 212 by printing or the like, so as to heat and atomize the liquid adsorbed on the atomizing surface 212.

[0110] At least a portion of the surface of the porous body 21 is formed into an integrated structure with the first sealing layer 22 and the second sealing layer 23 by two-color injection molding. The first sealing layer 22 is provided on at least part of the outer surface of the porous body 21, and the second sealing layer 23 is provided on at least part of the outer surface of the first sealing layer 22. The hardness of the first sealing layer 22 is greater than the hardness of the second sealing layer 23. The first sealing layer 22 can be a dense plastic body, and the second sealing layer 23 can be a dense soft plastic body. By providing the first sealing layer 22, not only the strength of the porous body 21 and the anti-leakage effect of the smoke oil can be improved, but also the injection molding of the second sealing layer 23 is facilitated. By providing the second sealing layer 23, the sealed contact between the atomizer core 20 and the inner wall surface of the shell 10 can be achieved, and there is no need to provide an additional sealing ring between the atomizer core 20 and the inner wall surface of the shell 10.

[0111] It should be noted that forming the first sealing layer 22 and the second sealing layer 23 by two-color injection molding can improve the bonding force among the first sealing layer 22 , the second sealing layer 23 and the porous body 21 , reduce the shrinkage rate and deformation of the atomizer core 20 , and thus improve the dimensional accuracy of the atomizer core 20 .

[0112] Optionally, when preparing the porous body 21, skeleton powder, surfactant, pore-forming agent (carbon powder, sawdust, starch, polyvinyl chloride, etc.), molding additives and sintering aids can be mixed first, and the skeleton powder includes one or more of amorphous quartz, crystalline quartz, aluminum oxide, silicon carbide, and titanium oxide. Then the mixed slurry is molded in a molding machine, and the principle is similar to injection molding. Subsequently, the molded porous body can be sintered at a sintering temperature of 1000°C-1400°C.

[0113] Before the outer surface of the porous body 21 is injection molded, the upper and lower surfaces of the sintered porous body 21 can be mechanically processed to achieve the required dimensional accuracy. Then the surface-treated porous body 21 is processed for heating circuits. The silk-screened porous body 21 is sintered in a reducing atmosphere. The sintered porous body 21 is then injection molded to form the first sealing layer 22 and the second sealing layer 23 to form a composite material combination. Finally, the two electrical connectors 25 of the composite material combination are bent separately and placed in the limit grooves 236 on both sides.

[0114] The present application also provides an electronic cigarette. The electronic cigarette includes the electronic cigarette atomizer assembly 100 and a cigarette rod assembly. An electrical component is provided in the cigarette rod device, the electrical component is electrically connected to the heating element 24, and the electrical component is configured to supply power to the heating element 24. An air inlet is formed on the cigarette rod device, and the air inlet is connected to the atomizer chamber 13. The cigarette rod device and the electronic cigarette atomizer assembly 100 are connected to each other in a detachable manner.

[0115] The electronic cigarette atomizer assembly 100 atomizes a liquid matrix such as cigarette oil to generate aerosol (smoke), and the air in the atomizer chamber 13 and the smoke generated by the electronic cigarette atomizer assembly 100 heating and atomizing can be discharged through the air outlet channel 11 after mixing. The liquid matrix can be a cigarette oil such as cigarette oil, and the cigarette oil can be atomized by the electronic cigarette atomizer assembly 100 to generate smoke.

[0116] In summary, according to the electronic cigarette of the embodiment of the present invention, the atomizer core 20 adopts a composite material combination. Since the second sealing layer 23 has a sealing function, the atomizer core 20 is assembled into the electronic cigarette, which can not only prevent the smoke oil from seeping from the liquid storage chamber 12 to the atomizer chamber 13, but also prevent the smoke oil on the side of the atomizer core 20 from being sucked into the user's mouth, which can better meet the use and testing requirements of customers and improve the user's comprehensive use experience. In addition, there is no need to provide a sealing ring between the atomizer core 20 and the inner wall surface of the shell 10, which reduces the number of parts and saves the component manufacturing cost.

[0117] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An electronic cigarette atomization component, characterized in that: include: A shell, wherein the shell has a liquid storage chamber and an atomizing chamber, and the shell is provided with an air outlet passage, and the atomizing chamber is communicated with the air outlet passage; an atomizing core, the atomizing core being arranged in the housing, the atomizing core comprising a porous body and a heating element, the porous body having a liquid absorbing surface and an atomizing surface arranged opposite to each other, the liquid absorbing surface being communicated with the liquid storage cavity, the atomizing surface being communicated with the atomizing cavity, and the heating element being arranged on the atomizing surface; A first sealing layer is provided on at least part of the outer surface of the porous body, and a second sealing layer is provided on at least part of the outer surface of the first sealing layer, the second sealing layer contacts the inner wall surface of the shell to form a seal, and the hardness of the first sealing layer is greater than the hardness of the second sealing layer; The first sealing layer is a layer structure formed by injection molding a hard material on at least part of the outer surface of the porous body; the second sealing layer is a layer structure formed by injection molding a soft material on at least part of the outer surface of the first sealing layer; the first sealing layer is provided with a ventilation channel, one end of the ventilation channel is connected to the liquid storage chamber, and the other end of the ventilation channel is connected to the atomization chamber, and the ventilation channel is used to adjust the pressure difference between the pressure of the liquid storage chamber and the external atmospheric pressure.

2. The electronic cigarette atomizer assembly according to claim 1, characterized in that: The ventilation channel is a through hole that penetrates the first sealing layer along an extending direction from the liquid absorption surface to the atomization surface.

3. The electronic cigarette atomizer assembly according to claim 1, characterized in that: The ventilation channel is a groove provided on the outer surface of the first sealing layer, and the groove penetrates the first sealing layer along an extending direction from the atomization surface to the liquid absorption surface.

4. The electronic cigarette atomizer assembly according to claim 1, characterized in that: There are multiple ventilation channels, and the multiple ventilation channels are arranged at intervals on the outer surface of the first sealing layer.

5. The electronic cigarette atomizer assembly according to claim 1, characterized in that: The porous body has an outer peripheral surface connecting the atomizing surface and the liquid absorbing surface. The first sealing layer includes a plurality of sealing segments, and the plurality of sealing segments are arranged at intervals on the outer peripheral surface of the porous body.

6. The electronic cigarette atomizer assembly according to claim 1, characterized in that: The porous body has an outer peripheral surface connecting the atomization surface and the liquid absorption surface, the outer peripheral surface of the porous body is provided with a protrusion, the first sealing layer has a groove, the first sealing layer is injection molded on the outer side of the protrusion, and the protrusion is located in the groove.

7. The electronic cigarette atomizer assembly according to claim 1, characterized in that: The second sealing layer is integrally formed with the first sealing layer.

8. The electronic cigarette atomizer assembly according to claim 1, characterized in that: The porous body has an outer peripheral surface connecting the atomizing surface and the liquid absorbing surface, and the second sealing layer covers the first sealing layer and the outer peripheral surface exposed on the first sealing layer.

9. The electronic cigarette atomizer assembly according to claim 3, characterized in that: The second sealing layer comprises: a first sealing portion, wherein a first side of the first sealing portion is connected to the first sealing layer or the outer surface, a second side of the first sealing portion is connected to the inner wall surface of the housing, and the first sealing portion and the groove are enclosed to form the ventilation channel; a second sealing portion, the second sealing portion butting against an edge of the first sealing portion, the second sealing portion being arranged opposite to the liquid absorbing surface; Wherein, when the air pressure of the liquid storage chamber is greater than or equal to the external atmospheric pressure, the second sealing portion is in contact with the liquid absorbing surface, and the second sealing portion can close the ventilation channel; When the air pressure of the liquid storage chamber is lower than the external atmospheric pressure, there is a gap between the second sealing portion and the liquid suction surface, the gap is connected to the ventilation channel, and the second sealing portion can open the ventilation channel.

10. The electronic cigarette atomizer assembly according to claim 1, characterized in that: The outer surface of the second sealing layer is provided with elastic convex ribs, and the elastic convex ribs abut against the inner wall surface of the shell.

11. The electronic cigarette atomizer assembly according to claim 1, characterized in that: Also includes: A lower cover, wherein the lower cover is arranged at one end of the housing away from the air outlet channel, the area between the lower cover and the atomizing surface of the porous body constitutes the atomizing chamber, and the lower cover supports the atomizing core; An electrical connector, the electrical connector being electrically connected to the heating element; The lower cover is provided with an air inlet channel, and the air inlet channel is communicated with the atomization chamber; The lower cover is provided with a conductive member, and the conductive member is electrically connected to the electrical connector.

12. The electronic cigarette atomizer assembly according to claim 11, characterized in that: The second sealing layer is provided with a supporting portion, and the supporting portion and the heating element are staggered on the atomizing surface.

13. The electronic cigarette atomizer assembly according to claim 12, characterized in that: The support portion is provided with a pad, a limiting groove is formed on the pad, the electrical connector has a first section and a second section, the first section of the electrical connector is electrically connected to the heating element, and the second section of the electrical connector is embedded in the limiting groove and electrically connected to the conductive member.

14. The electronic cigarette atomizer assembly according to claim 13, characterized in that: The limiting groove is interference-fitted with the electrical connector.

15. The electronic cigarette atomizer assembly according to claim 13, characterized in that: The support platform protrudes from the supporting portion, and the support platform and the conductive member are located on both sides of the second section and are respectively in contact with the second section.

16. A method for preparing an atomizer core, characterized in that: The atomizer core is the atomizer core of the electronic cigarette atomizer assembly according to any one of claims 1 to 15, and the preparation method comprises the following steps: preparing a porous body, wherein the porous body has a liquid absorption surface and an atomization surface; A heating element is arranged on the atomizing surface of the porous body; At least a portion of the surface of the porous body is formed into an integrated structure with the first sealing layer and the second sealing layer by two-color injection molding. The first sealing layer is provided on at least a portion of the outer surface of the porous body, and the second sealing layer is provided on at least a portion of the outer surface of the first sealing layer. The hardness of the first sealing layer is greater than the hardness of the second sealing layer.

17. An electronic cigarette, characterized in that: include: The electronic cigarette atomizer assembly according to any one of claims 1 to 15; A cigarette rod device, wherein an electrical component is disposed in the cigarette rod device, the electrical component is electrically connected to the heating element, the electrical component is configured to supply power to the heating element, an air inlet is formed on the cigarette rod device, and the air inlet is connected to the atomization chamber; The cigarette rod device and the electronic cigarette atomization assembly are connected to each other in a detachable manner.

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