Atomizer core and cartridge

Abstract

An atomizer core includes a porous body, an insulating heat-conducting layer disposed on the surface of the porous body, and a heating element disposed on the outer surface of the insulating heat-conducting layer. The porous body is a porous metal material. 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 insulating heat-conducting layer is disposed on the second surface. The atomized liquid penetrates from the liquid absorption surface to the second surface. The heating element on the second surface is heated, and the heat is conducted through the insulating heat-conducting layer 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 The atomizer core was originally made of organic cotton, but organic cotton is prone to burning and produces odor that affects its use.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. Summary of the invention

[0003] In view of this, it is necessary to provide an atomizer core and a cigarette cartridge that have no odor, good structural strength, and are not prone to burning problems.

[0004] In order to solve the above technical problems, the present application provides an atomizer core, including a porous body, an insulating heat-conductive layer arranged on the surface of the porous body, and a heating element arranged on the outer surface of the insulating heat-conductive layer. 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. The insulating heat-conductive layer is arranged on the second surface. The atomized liquid penetrates from the liquid absorption surface to the second surface. The heating element on the second surface is heated, and the heat is conducted to the porous body through the insulating heat-conductive layer to atomize the atomized liquid.

[0005] Preferably, a lower groove is provided on the second surface of the porous body, and the insulating heat-conductive layer is provided in the lower groove.

[0006] Preferably, the insulating thermally conductive layer is a porous ceramic, the porous body is a 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, the porous ceramic is formed by mixing ceramic powder and organic material and filling it into the lower groove and sintering it again, and the heating element is formed by silk-screening the resistance material on the surface of the porous ceramic and sintering it.

[0007] Preferably, the insulating thermally conductive layer is a porous ceramic, the porous body is a 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, the porous ceramic is formed by mixing ceramic powder and organic material and filling the lower groove, and the heating element is formed by placing a resistive material on the surface of the ceramic slurry and then sintering again to form the insulating thermally conductive layer and the heating element.

[0008] Preferably, the insulating thermally conductive layer is a porous ceramic, the porous body is a 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, the porous ceramic is formed by mixing ceramic powder and organic material and filling the lower groove, and the heating element is formed by partially embedding the resistance wire into the ceramic slurry and then sintering again to form the insulating thermally conductive layer and the heating element.

[0009] 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.

[0010] Preferably, the pore size 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%.

[0011] 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%.

[0012] Preferably, the insulating heat-conducting layer is made of porous ceramic, and a microporous structure is formed inside the insulating heat-conducting layer.

[0013] 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 a porous body, an insulating heat-conductive layer provided on the surface of the porous body, and a heating element provided on the outer surface of the insulating heat-conductive layer, the porous body is a porous metal material, the porous body includes a first surface facing and connected to the liquid storage cavity and a second surface opposite to the first surface, the first surface is a liquid absorption surface, the insulating heat-conductive layer is provided on the second surface, the atomized liquid penetrates from the liquid absorption surface to the second surface, the heating element on the second surface is heated, and the heat is conducted to the porous body through the insulating heat-conductive layer to atomize the atomized liquid.

[0014] The atomizer core of the present application adopts a porous body made of metal as a supporting force-bearing body, and an insulating heat-conducting layer is arranged on the surface of the porous body to form the heating element. The heat is generated by the heating element and is conducted to the porous body through the insulating heat-conducting layer to atomize the atomized liquid to produce mist, thereby solving the technical problem that traditional brittle porous ceramics are easily broken 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A three-dimensional diagram of the atomizer core of this application;

[0017] Figure 2 A three-dimensional diagram of the atomizer core of the present application from another angle;

[0018] Figure 3 This is a three-dimensional exploded view of the atomizer core of this application;

[0019] Figure 4 For along Figure 1 A cross-sectional view taken along the dashed line AA shown;

[0020] Figure 5 A cross-sectional view of the cigarette cartridge of this application;

[0021] Figure 6 for Figure 5 A partial enlarged view of the dotted circle shown.

[0022] Description of Reference Numerals

[0023] 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. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 4 As 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 , and a heating element 43 adhered to the surface of the insulating heat-conducting layer 42 .

[0026] 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%.

[0027] 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%.

[0028] 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%.

[0029] 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 the atomized liquid penetration, and the protruding side wall 415 can provide better support strength or increase the storage capacity of the e-liquid.

[0030] 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 edge bottom surface of the porous body 41.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] When manufacturing the atomizer core 40, the porous body 41 is first sintered by mixing alloy powder with organic material, and then the lower groove 411 of the porous body 41 is filled with ceramic slurry. Subsequently, the heating element 43 is screen-printed on the ceramic slurry, and finally, the atomizer core 40 is sintered again.

[0035] The ceramic slurry is a mixture of ceramic powder and the organic material. The heating element is formed by screen-printing a material powder with a certain resistance value on the ceramic slurry and then sintering it.

[0036] 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.

[0037] Please continue reading Figure 5 , Figure 6 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.

[0038] 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.

[0039] 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 housing 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 atomizer core 40 and the inner wall surface of the housing chamber 213 to achieve sealing.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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 porous body, an insulating heat-conducting layer arranged on the surface of the porous body, and a heating element arranged on the outer surface of the insulating heat-conducting layer. The porous body is a porous metal material. The porous body comprises 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. The atomized liquid penetrates from the liquid absorption surface to the second surface. The heating element on the second surface is heated. The heat is transferred to the porous body through the insulating heat-conducting layer to atomize the atomized liquid. A lower groove is provided on the second surface of the porous body, and the insulating heat-conducting layer is provided in the lower groove; The insulating heat-conducting layer is a porous ceramic, and the porous body is a 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. The porous ceramic is filled into the lower groove after mixing ceramic powder and organic material. The heating element is formed by placing a resistance material on the surface of the mixture of ceramic powder and the organic material and then sintering again to form the insulating heat-conducting layer and the heating element.

2. The atomizer core according to claim 1, characterized in that: The insulating heat-conducting layer is a porous ceramic, and the porous body is a 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. The porous ceramic is mixed with ceramic powder and organic material and then filled into the lower groove and sintered again. The heating element is formed by silk-screening the resistance material on the surface of the porous ceramic and sintering.

3. The atomizer core according to claim 2, characterized in that: The insulating heat-conducting layer is a porous ceramic, and the porous body is a 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. The porous ceramic is filled into the lower groove after mixing ceramic powder and organic material. The heating element is formed by partially embedding the resistance wire into the mixture of ceramic powder and the organic material and then sintering again to form the insulating heat-conducting layer and the heating element.

4. The atomizer core according to claim 3, 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.

5. The atomizer core according to claim 1, characterized in that: The pore size 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%.

6. The atomizer core according to claim 5, characterized in that: The pore diameter of the micropores in the porous body ranges from 18 to 20 μm, and the porosity ranges from 54% to 55%.

7. The atomizer core according to claim 6, characterized in that: The insulating heat-conducting layer contains porous ceramics, and a microporous structure is formed inside the insulating heat-conducting layer.

8. 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 7 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 atomizer core includes a porous body, an insulating heat-conducting layer arranged on the surface of the porous body, and a heating element arranged on the outer surface of the insulating heat-conducting layer. The porous body is a porous metal material. The porous body includes a first surface facing and connected to the liquid storage chamber and a second surface opposite to the first surface. The first surface is a liquid absorption surface. The insulating heat-conducting layer is arranged on the second surface. The atomized liquid penetrates from the liquid absorption surface to the second surface. The heating element on the second surface is heated, and the heat is conducted to the porous body through the insulating heat-conducting layer to atomize the atomized liquid.

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