Atomizer core and cartridge

Abstract

An atomizing core includes a shell with a receiving cavity extending from top to bottom, a porous body wrapped in the receiving cavity of the shell, and a heating element arranged on the bottom surface of the porous body, the porous body includes a first surface in contact with atomized liquid and a second surface opposite to the first surface, the first surface is a liquid absorption surface, the second surface is an atomization surface, the heating element is arranged on the atomization surface, the atomized liquid penetrates from the liquid absorption surface to the atomization surface, the heating element on the atomization surface is heated, and the heat is conducted to the porous body to atomize the atomized liquid. The present application also includes a cigarette cartridge.

Description

Technical Field

[0001] The present application relates to the field of electronic cigarettes, and in particular to an atomizer core and a cigarette cartridge. Background Art

[0002] The key component of the e-cigarette that uses smoke oil is the atomizer, which requires an atomizer core that is permeated with smoke oil. The atomizer core was originally made of organic cotton, but organic cotton is prone to burning and produces odor that affects its use. To solve the above technical problems, the industry has adopted a technical solution that uses a ceramic porous body as the atomizer core. The ceramic atomizer core will not burn, and its filtering performance is more stable than that of a cotton core. For example, the cigarette cartridge disclosed in Patent No. CN211020987U uses a ceramic atomization core. The ceramic atomization core is generally divided into a liquid absorption surface and an atomization surface. The smoke oil penetrates through the liquid absorption surface to the atomization surface for heating and atomization. However, porous ceramics also have some disadvantages. First, porous ceramics are relatively brittle and easy to break, requiring thicker strength support, and the heating wire is printed on the bottom surface of the porous ceramics. The porous ceramics bear the supporting force and are easy to break, causing the heating wire to break and form a short circuit, affecting the atomization of the smoke oil; secondly, porous ceramics are generally fired with clay. After the smoke oil is atomized through the porous ceramics, it is easy to carry a muddy smell, and the smoke oil restoration degree is not as good as the cotton core.

[0003] At the same time, there has always been a technical problem that is difficult to solve in cigarette cartridge products, namely the problem of oil leakage. Generally, the atomizer core uses a porous ceramic substrate as a liquid infiltration device. The atomized liquid penetrates through the porous ceramic matrix. After heating, the atomized liquid in the porous ceramic matrix is ​​atomized into smoke. The outside of the porous ceramic matrix needs to be wrapped with sealing silicone and other materials to prevent oil leakage, but oil leakage still occurs in actual use. At the same time, a balancing airway connected to the liquid storage cavity needs to be opened to ensure the air pressure balance in the liquid storage cavity. The porous ceramic matrix is ​​easily deformed during use, and there are micropores connected to the periphery, resulting in poor sealing and a more serious oil leakage. Summary of the invention

[0004] In view of this, it is necessary to provide an atomizer core and a cigarette cartridge, which have a shell that protects the porous body to prevent the porous body from being fragile, and at the same time solve the problem of oil leakage in the atomizer core.

[0005] In order to solve the above technical problems, the present application provides an atomization core, including a shell provided with a receiving cavity extending through from top to bottom, a porous body wrapped in the receiving cavity of the shell, and a heating element arranged on the bottom surface of the porous body, the porous body including a first surface in contact with the atomized liquid and a second surface opposite to the first surface, the first surface is a liquid absorption surface, and the second surface is an atomization surface, the heating element is arranged on the atomization surface, the atomized liquid penetrates from the liquid absorption surface to the atomization surface, the heating element on the atomization surface is heated, and the heat is conducted to the porous body to atomize the atomized liquid.

[0006] Preferably, the shell is made of a rigid material, and the atomizer core is supported by the shell to be fixed in the atomizer device.

[0007] Preferably, the shell is formed by stretching a stainless steel sheet, and includes a seamless shell and the receiving cavity. A material strip is connected to the bottom edge of the shell. The porous body slurry and heating element material are filled into the receiving cavity and then sintered.

[0008] Preferably, the shell height of the outer shell is greater than the height of the porous body, so that the thickness of the porous body is reduced.

[0009] Preferably, the atomizer core also includes an insulating heat-conductive layer arranged on the second surface of the porous body, the heating element is arranged on the insulating heat-conductive layer, a lower groove is opened on the second surface of the porous body, the insulating heat-conductive layer is coated in the lower groove, the insulating heat-conductive layer is porous ceramic, the porous body is porous metal, the porous body is formed by mixing metal powder and organic material and then sintering, the organic material inside the metal powder is ablated and removed to form a microporous structure, and the porous ceramic is formed by mixing ceramic powder and organic material and then sintering to remove the organic material.

[0010] Preferably, an upper groove is formed in a depression on the first surface of the porous body, and a side wall is formed on the outer periphery of the upper groove.

[0011] Preferably, the pore diameter of the micropores in the porous body is in the range of 15-22 um, and the porosity is in the range of 50%-60%.

[0012] Preferably, the pore diameter of the micropores in the porous body is in the range of 18-20 um, and the porosity is in the range of 54%-55%.

[0013] Preferably, the insulating heat-conducting layer is made of porous ceramic, and a microporous structure is formed inside the insulating heat-conducting layer.

[0014] Preferably, the porous body is a porous ceramic material, and the porous ceramic is formed by mixing ceramic powder with organic material and then sintering to remove the organic material.

[0015] In order to solve the above technical problems, the present application also provides a cigarette cartridge, including a cigarette cartridge tube provided with a flue pipe and a liquid storage cavity, a closing body loaded into the cigarette cartridge tube and closing the liquid storage cavity, an atomizer core installed in the closing body, and a base fixed to the cigarette cartridge tube to limit the closing body, the atomizer core includes an outer shell provided with a receiving cavity which passes through from top to bottom, a porous body wrapped in the receiving cavity of the outer shell, and a heating element arranged on the bottom surface of the porous body, the porous body is a porous metal material, the porous body includes a first surface in contact with the atomized liquid and a second surface opposite to the first surface, the first surface is a liquid absorption surface, and the second surface is an atomization surface, the heating element is arranged on the atomization surface, the atomized liquid penetrates from the liquid absorption surface to the atomization surface, the heating element on the atomization surface is heated, and the heat is conducted to the porous body to atomize the atomized liquid, and the atomizer core is fixed in the closing body through the support of the outer shell.

[0016] Preferably, the closed body includes a closed bracket and a sealing member wrapped on the surface of the closed bracket, the closed bracket includes an air duct connected to the insertion head of the flue pipe, an oil duct formed on the outside of the air duct and isolated from the air duct, and a accommodating cavity located below the oil duct for fixing and accommodating the atomizer core, so that the sealing member is clamped between the insertion head of the flue pipe and the air duct, the sealing member is clamped between the inner wall surface of the smoke bomb tube and the sealing bracket, and the sealing member is clamped between the outer surface of the outer shell of the atomizer core and the inner wall surface of the accommodating cavity.

[0017] Preferably, the closing body is inserted into the cavity of the cartridge tube from the bottom and closes the liquid storage cavity, the oil passage of the closing body is connected to the liquid storage cavity, the base is at least partially buckled into the cavity of the cartridge tube to fix the closing body, and the base includes an insulating base, a connecting conductor arranged in the insulating base and upwardly pressed against the contact part, an air inlet located below the atomizer core, and an atomization cavity formed between the air inlet and the lower surface of the atomizer core.

[0018] The atomizer core of the present application is provided with a shell, and then the porous body slurry and the resistance material are filled in the shell, and then the porous body and the heating element are sintered at one time, which reduces the number of sintering times and reduces the manufacturing cost; and the shell is seamlessly wrapped around the outer peripheral surface of the porous body, so that the outer peripheral surface of the porous body cannot penetrate liquid, reducing the risk of oil leakage. The shell provides support to avoid the problem of the ceramic body being fragile. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0020] Figure 1 A three-dimensional diagram of the atomizer core of this application;

[0021] Figure 2 A three-dimensional diagram of the atomizer core of the present application from another angle;

[0022] Figure 3 This is a three-dimensional exploded view of the atomizer core of this application;

[0023] Figure 4 For along Figure 1 A cross-sectional view taken along the dashed line AA shown;

[0024] Figure 5 for Figure 4 Another embodiment of the cross-sectional view of the atomizer core;

[0025] Figure 6 A cross-sectional view of the cigarette cartridge of this application;

[0026] Figure 7 for Figure 6 A partial enlarged view of the dotted circle shown;

[0027] Figure 8 for Figure 6 A partial enlarged view of another embodiment of the dotted circle shown;

[0028] Fig. 9 This is a cross-sectional view of another embodiment of the atomizer core of the present application.

[0029] Description of Reference Numerals

[0030] The cigarette cartridge tube-10; the tube body-11; the liquid storage chamber-12; the flue tube-13; the tube cavity-131; the insertion head-132; the closing body-20; the closing bracket-21; the oil channel-211; the air channel-212; the sealing member-22; the base-30; the insulating base-31; the connecting conductor-32; the air inlet-33; the atomizing chamber-34; the atomizing core-40; the porous body-41; the lower groove-411; the upper groove-412; the liquid absorption surface-413; the atomizing surface-414; the side wall-415; the insulating heat-conducting layer-42; the heating element-43; the arc-shaped base-431; the opening end-432; the inflected portion-433; the outer base-434; the contact portion-435; the outer shell-45; the shell-451; the receiving chamber-452; the convex hull-453. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings.

[0032] Embodiment 1

[0033] See also Figures 1 to 5As shown, the atomizer core 40 of the present application includes a porous body 41, an insulating heat-conducting layer 42 coated on one side of the porous body 41, a heating element 43 adhered to the surface of the insulating heat-conducting layer 42, and a shell 45 wrapped around the outer periphery of the porous body 41.

[0034] The porous body 41 is made of metal. Metal powder and organic material are mixed to form a mixture, which is then sintered. The organic material is ablated and removed to form micropores. The pore size of the micropores ranges from 15 to 22 um, and the porosity ranges from 50% to 60%.

[0035] In one embodiment, the pore size of the porous body 41 made of metal material ranges from 18 to 20 um, and the porosity ranges from 54% to 55%.

[0036] In one embodiment, the pore size of the porous body 41 made of metal material ranges from 18 to 20 um, and the porosity ranges from 54.87% to 55.05%.

[0037] The porous body 41 includes a liquid absorption surface 413 contacting the atomized liquid and an atomization surface 414 opposite to the liquid absorption surface 413. An upper groove 412 is provided in the middle of the liquid absorption surface 413, and the bottom surface and the side surface of the upper groove 412 are both used as part of the liquid absorption surface. A side wall 415 is formed on the periphery of the upper groove 412. The setting of the upper groove 412 can reduce the distance of atomized liquid penetration, and the protruding side wall 415 can provide better support strength or increase the storage capacity of the e-liquid.

[0038] The atomized surface 414 of the porous body 41 is concave to form a lower groove 411, and the insulating heat-conducting layer 42 is arranged in the lower groove 411. The lower surface of the insulating heat-conducting layer 42 and / or the outer periphery of the porous body 41 constitute the atomized surface 414. The lower surface of the insulating heat-conducting layer 42 is flush with the bottom surface of the edge of the porous body 41.

[0039] The insulating thermal conductive layer 42 may be a porous ceramic structure, which has the characteristics of insulation, thermal conductivity and adsorption of atomized liquid. The pore size and porosity of the insulating thermal conductive layer 42 are set with reference to the porous body 41.

[0040] The insulating heat-conducting layer 42 may also be made of other materials that are insulating, heat-conducting and can absorb atomized liquid. The lower groove 411 protects the insulating heat-conducting layer 42 so that the thinner insulating heat-conducting layer 42 does not need to be subjected to force and will not break.

[0041] The heating element 43 is disposed on the outer surface of the insulating heat-conducting layer 42, and the heating element 43 includes an arc-shaped base 431 surrounding the outer surface of the insulating heat-conducting layer 42, a peripheral base 434 formed by bending back from two free ends of the arc-shaped base 431 and extending along the periphery of the arc-shaped base 431, and a contact portion 435 formed at two free ends of the peripheral base 434. A reverse bending portion 433 is formed at the junction of the arc-shaped base 431 and the peripheral base 434, and an open end 432 is formed between a pair of the reverse bending portions 433, and the open end 432 is the opening direction of the arc-shaped base 431, and the open end 432 corresponds to a pair of the contact portions 435.

[0042] The shell 45 is a seamless stretch component, which includes a seamless shell 451 and a receiving cavity 452 that passes through the shell 451. The shell 45 is preferably formed by stretching a stainless steel sheet and connected with a strip structure. The strip can be connected at the end edge of the shell 451. The shell 45 can also be made of other materials, as long as the material of the shell 45 is resistant to high temperatures and does not cause melting deformation when sintering the porous body 41 and the heating element 43.

[0043] During manufacturing, the material is automatically pulled through the connection of the material strip of the shell 45, and one side of the receiving cavity 452 of the shell 45 is closed by a jig. The porous body slurry is first filled into the receiving cavity 452, and then the porous ceramic slurry is filled on the surface of the porous body slurry, and then the resistance material is printed on the surface of the porous body slurry, and finally sintered to form the porous body 41 of the metal material, the insulating heat-conducting layer 42 and the heating element 43. Fully automated production is achieved, and at the same time, the slurry is sintered once, which reduces the number of sintering and molding and reduces the manufacturing cost.

[0044] The porous body slurry is formed by sintering alloy powder mixed with organic material to form the porous body 41. The lower side of the porous body 41 is closed by a jig, and the upper side is filled and then pressed out by a jig to form the lower groove 411. The porous ceramic slurry is evenly filled in the lower groove 411. The heating element 43 can make the resistor powder material printed on the surface of the ceramic slurry.

[0045] The ceramic slurry is a mixture of ceramic powder and organic material. During sintering, the organic material is removed by ablation to form the insulating heat-conducting layer 42 .

[0046] In one embodiment, the porous body 41 may be sintered and then loaded into the shell 45, which is convenient for fixation. The shell 45 may be made into a conical structure, or the bottom edge may be punched to form an inner folded edge.

[0047] Please refer to Figure 5As shown, in one embodiment, the upper groove 412 of the porous body 41 can be omitted, and the surface of the porous body 41 facing the atomized liquid is flat or irregular, and the height of the shell 45 is greater than the height of the porous body 41. The upper part is fixedly supported by the upper edge of the shell 54, thereby reducing the thickness of the porous body 41, thereby reducing the transmission distance of the atomized liquid and achieving a better atomization effect.

[0048] The atomizer core 40 of the present application adopts a porous body 41 made of metal as a supporting force-bearing body, and an insulating heat-conducting layer 42 is arranged on the surface of the porous body 41 to form the heating element 43. The heating element 43 generates heat and conducts the heat through the insulating heat-conducting layer 42 to the porous body 41 to atomize the atomized liquid to produce mist, thereby solving the technical problem that traditional brittle porous ceramics are easy to break as supporting force-bearing bodies. At the same time, the metal material is used as the atomized liquid penetration body. The atomized liquid is purer during the conduction and penetration process and is not easily contaminated, thereby solving the problem that traditional porous ceramics are prone to produce earthy smell after liquid infiltration.

[0049] At the same time, the atomizer core 40 of the present application is first formed by stamping a shell 45, and then filling the shell 45 with porous body slurry, insulating heat conductive layer slurry and resistor material in turn, and then sintering the porous body 41, insulating heat conductive layer 42 and heating element 43 at one time, thereby reducing the number of sintering times and reducing the manufacturing cost; and the shell 45 is seamlessly wrapped around the outer peripheral surface of the porous body 41, so that the outer peripheral surface of the porous body 41 cannot be leaked, thereby reducing the risk of oil leakage.

[0050] Please continue reading Figure 6 , Figure 7 As shown, the atomizer core 40 of the present application is used for the implementation of a cigarette cartridge. The cigarette cartridge of the present application includes a cigarette cartridge tube 10 provided with a flue pipe 13 and a liquid storage chamber 12, a closing body 20 inserted into the cigarette cartridge tube 10 and closing the liquid storage chamber 12, the atomizer core 40 installed in the closing body, and a base 30 fixed to the cigarette cartridge tube 10.

[0051] The smoke bomb tube 10 includes a tube body 11, a liquid storage cavity 12 located in the tube body 11, and a flue pipe 13 provided in the tube body 11 and extending vertically. The flue pipe 13 extends from the top of the tube body 11 into the liquid storage cavity 12, and the flue pipe 13 includes a smoke hole 131 extending vertically and an insertion head 132 formed at the bottom of the flue pipe 13. The outer diameter of the insertion head 132 is smaller than the outer diameter of the flue pipe 13. Preferably, the flue pipe 13 is located in the middle of the liquid storage cavity 12; in one embodiment, the flue pipe 13 can also be provided on one side or both sides of the liquid storage cavity 12.

[0052] The enclosed body 20 includes an enclosed bracket 21 and a sealing member 22 wrapped on the surface of the enclosed bracket 21. The enclosed bracket 21 includes an air passage 212 connected to the insertion head 132 of the flue pipe 13, an oil passage 211 formed outside the air passage 212 and isolated from the air passage 212, and a housing chamber 213 located below the oil passage 211 for fixing and accommodating the atomizer core 40. The sealing member 22 at least wraps the surfaces of the oil passage 211, the air passage 212, and the housing chamber 213, and at least partially wraps the outer surface of the enclosed bracket 21, so that the sealing member 22 is clamped between the insertion head 132 of the flue pipe 13 of the cigarette cartridge tube 10 and the air passage 212 to achieve sealing, the sealing member 22 is clamped between the inner wall surface of the cigarette cartridge tube 10 and the enclosed bracket 21 to achieve sealing, and the sealing member 22 is clamped between the outer surface of the shell 45 of the atomizer core 40 and the inner wall surface of the housing chamber 213 to achieve sealing.

[0053] The closing body 20 is inserted into the cavity of the cartridge tube 10 from the bottom and closes the liquid storage cavity 12. The oil passage of the closing body 20 is connected to the liquid storage cavity 12. The base 30 is at least partially buckled into the cavity of the cartridge tube 10 to fix the closing body 20. The base 30 includes an insulating base 31, a connecting conductor 32 disposed in the insulating base 31 and abutting upward against the contact portion 435, an air inlet 33 located below the atomizer core 40, and an atomizer cavity 34 formed between the air inlet 33 and the lower surface of the atomizer core 40.

[0054] The atomized liquid of the cigarette cartridge of the present application flows from the liquid storage chamber 12 to the liquid absorption surface 413 of the atomizing core 40, and the atomized liquid penetrates into the atomizing surface 414 of the atomizing core 40. The heating element 43 supplies power for heating, and conducts the power to the porous body 41 through the insulating heat conductive layer 42, and atomizes the atomized liquid in the porous body 41 to generate mist. The mist is conducted to the airway 212 through the atomizing chamber 34 and then sucked out along the flue pipe 13.

[0055] The outer surface of the housing 45 at least partially clamps the seal with the inner wall of the accommodating cavity 213 to achieve sealing, and no serious oil leakage problem will be caused by deformation of the porous body 41. The housing 45 has sufficient support strength and is connected with multiple material strips, and can be assembled by automated assembly.

[0056] Embodiment 2

[0057] Key References Fig. 9 As shown, compared with the first embodiment, the difference of the second embodiment is that the porous body 41 is made of porous ceramic material instead of metal, the insulating heat-conducting layer 42 is omitted, and the heating element 43 is directly arranged on the bottom surface of the porous body 41 and sintered into shape.

[0058] This embodiment can effectively solve the brittleness problem of the porous body 41 made of ceramic material. By using the rigid shell 45 as a supporting force-bearing element, the shell 45 can effectively protect the porous body 41 from being broken due to force, causing the product to be scrapped, or deformed due to force, resulting in product deformation, partial damage and serious oil leakage.

[0059] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0060] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0061] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An atomizer core, characterized in that: The invention comprises a shell provided with a receiving cavity which passes through from top to bottom, a porous body wrapped in the receiving cavity of the shell, and a heating element arranged on the bottom surface of the porous body, wherein the porous body comprises a first surface in contact with the atomized liquid and a second surface opposite to the first surface, wherein the first surface is a liquid absorption surface, and the second surface is an atomization surface, wherein the heating element is arranged on the atomization surface, the atomized liquid penetrates from the liquid absorption surface to the atomization surface, the heating element on the atomization surface is heated, and the heat is transferred to the porous body to atomize the atomized liquid; The shell is made of a rigid material, and the porous body is made of a porous metal; The atomizer core further comprises an insulating heat-conducting layer disposed on the second surface of the porous body, the heating element is disposed on the insulating heat-conducting layer, a lower groove is opened on the second surface of the porous body, the insulating heat-conducting layer is coated in the lower groove, and the insulating heat-conducting layer is porous ceramic; The atomizer core is first formed into a shell by stamping, and then the porous body slurry, the insulating thermal conductive layer slurry and the resistor material are filled in the shell in sequence, and then the porous body, the insulating thermal conductive layer and the heating element are sintered at one time.

2. The atomizer core according to claim 1, characterized in that: The atomizer core is subjected to a holding support force through the shell so as to be fixed in the atomizer device.

3. The atomizer core according to claim 2, characterized in that: The shell is formed by stretching a stainless steel plate, and includes a seamless shell and the receiving cavity. A material strip is connected to the bottom edge of the shell. The porous body slurry and heating element material are filled into the receiving cavity and then sintered.

4. The atomizer core according to claim 3, characterized in that: The shell height of the outer shell is greater than the height of the porous body, so that the thickness of the porous body is reduced.

5. The atomizer core according to claim 1, characterized in that: The atomizer core also includes an insulating heat-conducting layer arranged on the second surface of the porous body, the heating element is arranged on the insulating heat-conducting layer, a lower groove is opened on the second surface of the porous body, the insulating heat-conducting layer is coated in the lower groove, the insulating heat-conducting layer is a porous ceramic, the porous body is formed by mixing metal powder and organic material and then sintering, the organic material inside the metal powder is ablated and removed to form a microporous structure, and the porous ceramic is formed by mixing ceramic powder and organic material and then sintering to remove the organic material.

6. The atomizer core according to claim 5, characterized in that: An upper groove is formed on the first surface of the porous body, and a side wall is formed on the outer periphery of the upper groove.

7. The atomizer core according to claim 6, characterized in that: The pore diameter of the micropores in the porous body is between 15-22 μm, and the porosity is between 50% and 60%.

8. The atomizer core according to claim 7, characterized in that: The pore diameter of the micropores in the porous body is between 18-20 μm, and the porosity is between 54% and 55%.

9. The atomizer core according to claim 8, characterized in that: The insulating heat-conducting layer contains porous ceramics, and a microporous structure is formed inside the insulating heat-conducting layer.

10. The atomizer core according to claim 1, characterized in that: The porous body is a porous ceramic material, and the porous ceramic is formed by mixing ceramic powder with organic material and then sintering to remove the organic material.

11. A cigarette cartridge, comprising a cigarette cartridge tube provided with a smoke duct and a liquid storage cavity, a sealing body installed in the cigarette cartridge tube and sealing the liquid storage cavity, an atomizer core as claimed in any one of claims 1 to 10 installed in the sealing body, and a base fixed to the cigarette cartridge tube to limit the position of the sealing body, characterized in that: The atomization core includes a shell provided with a receiving cavity extending through from top to bottom, a porous body wrapped in the receiving cavity of the shell, and a heating element arranged on the bottom surface of the porous body. The porous body is a porous metal material. The porous body includes a first surface in contact with the atomized liquid and a second surface opposite to the first surface. The first surface is a liquid absorption surface, and the second surface is an atomization surface. The heating element is arranged on the atomization surface. The atomized liquid penetrates from the liquid absorption surface to the atomization surface. The heating element on the atomization surface is heated, and the heat is conducted to the porous body to atomize the atomized liquid. The atomization core is supported and fixed in the closed body by the shell.

12. The cigarette cartridge according to claim 11, characterized in that: The closed body includes a closed bracket and a sealing member wrapped on the surface of the closed bracket, the closed bracket includes an air duct connected to the insertion head of the flue pipe, an oil duct formed on the outside of the air duct and isolated from the air duct, and a accommodating cavity located below the oil duct for fixing and accommodating the atomizer core, so that the sealing member is clamped between the insertion head of the flue pipe and the air duct, the sealing member is clamped between the inner wall surface of the smoke bomb tube and the sealing bracket, and the sealing member is clamped between the outer surface of the shell of the atomizer core and the inner wall surface of the accommodating cavity.

13. The cigarette cartridge according to claim 12, characterized in that: The closing body is inserted into the cavity of the cartridge tube from the bottom and closes the liquid storage cavity. The oil passage of the closing body is connected to the liquid storage cavity. The base is at least partially buckled into the cavity of the cartridge tube to fix the closing body. The base includes an insulating base, a connecting conductor arranged in the insulating base and upwardly pressed against the contact part of the heating element, an air inlet located below the atomizer core, and an atomizer cavity formed between the air inlet and the lower surface of the atomizer core.

Images