Heating core, atomizer and electronic cigarette

Abstract

The utility model discloses a heating core, an atomizer and an electronic cigarette, the heating core comprises a core body, the core body is provided with a central channel, the core body is provided with an inner wall corresponding to the central channel, the core body is provided with a first main body and a second main body which are connected with each other, and the central channel extends and penetrates through the first main body and the second main body; the outer diameter of the second main body is smaller than that of the first main body, the core body defines an airflow inlet and an airflow outlet which are respectively communicated with the central channel, the airflow inlet is positioned at one end of the first main body, and the airflow outlet is positioned at one end of the second main body; and the heating element is arranged on the wall, corresponding to the central channel, of the core body and is of a net-shaped structure. By means of the design, condensate formed when smoke is cooled can flow outwards from the end of the second main body, flowing to the center channel is reduced, and the center channel is prevented from being blocked; in addition, a heating wire is changed into a latticed heating piece, the heating area is increased, the temperature of the ceramic body is increased, the temperature of aerosol smoke cannot be too fast reduced, and formation of condensate is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of atomization technology, and in particular to a heating core, an atomizer, and an electronic cigarette. Background Art

[0002] The heating cores commonly used in electronic cigarettes or atomizers are mostly ceramic heating cores, including a hollow cylindrical ceramic body and a heating wire embedded on the inner wall of the ceramic body. The internal hollow space serves as the central channel for smoke circulation. The ceramic body is used to absorb the atomization matrix (smoke oil, etc.), which is heated and atomized by the heating wire to produce aerosol, which flows out from the central channel. However, some aerosols are easily condensed when they are inhaled by the user to the outlet end of the central channel, and accumulate in the central channel to form a viscous oil film, blocking the central channel, making the entire electronic cigarette unable to be used normally. In addition, the heating wire is distributed in a spiral shape on the inner wall of the ceramic heating core, and its heating area is very limited, resulting in the ceramic itself not having high heat, causing the aerosol smoke to cool down or even condense before being discharged from the central channel of the heating core. Utility Model Content

[0003] The purpose of the present application is to provide a heating core, an atomizer, and an electronic cigarette, so as to solve the problem in the prior art that smoke generated by heating the electronic cigarette forms condensate when it cools down and blocks the air flow channel.

[0004] The first aspect of the present application discloses a heating core, comprising:

[0005] a core body, the core body being provided with a central channel, the core body having an inner wall corresponding to the central channel, the core body having a first body and a second body connected to each other, the central channel extending through the first body and the second body, the outer diameter of the second body being smaller than the outer diameter of the first body; and

[0006] A heating element is provided on a wall of the core body corresponding to the central channel, and the heating element is a mesh structure.

[0007] As an embodiment, the core body is defined by an air flow inlet and an air flow outlet respectively communicated with the central channel, the air flow inlet is located at one end of the first body, and the air flow outlet is located at one end of the second body; the heat generating element is extended along the circumference of the central channel and is arranged on the inner wall of the first body corresponding to the central channel.

[0008] As an embodiment, the heating element is made of conductive metal and is at least partially embedded in the inner wall; or the heating element is made of conductive ink and is printed or coated on the inner wall.

[0009] As an embodiment, the heating element includes a conductive heating portion, and the conductive heating portion is formed by a circuit loop arranged in a plurality of polygonal grid line arrays.

[0010] As an embodiment, the heating element further includes a first heat conducting part and / or a second heat conducting part, wherein the first heat conducting part is connected to one side of the conductive heating part and extends in a direction away from the conductive heating part; the second heat conducting part is connected to the other side of the conductive heating part and extends in a direction away from the conductive heating part.

[0011] As an embodiment, the heating element further includes a first electrical connection portion and a second electrical connection portion, and the first electrical connection portion and the second electrical connection portion are electrically connected to two ends of the conductive heating portion, respectively.

[0012] As an implementation manner, the first electrical connection portion and the second electrical connection portion are respectively integrally formed with the conductive heating portion.

[0013] As an embodiment, the first body is formed around a first axis, the second body is formed around a second axis, and the first axis and the second axis coincide with each other;

[0014] The central passage is formed about a third axis that is coincident with the first and second axes.

[0015] As an implementation manner, the first electrical connection portion and the second electrical connection portion are respectively connected with pins;

[0016] The two pins are respectively connected to the first electrical connection portion and the second electrical connection portion at edges close to the conductive heating portion.

[0017] As an embodiment, the core is made of porous ceramic.

[0018] As an implementation manner, an arc-shaped transition portion is provided at a connection between the first body and the second body.

[0019] On the other hand, the present application also provides an atomizer, including the above-mentioned heating core.

[0020] As an embodiment, the atomizer includes an oil storage tank body and a sealing base, wherein an oil storage cavity is formed in the oil storage tank body, a smoking nozzle is provided at one end of the oil storage tank body, and the sealing base is sealed at the other end of the oil storage tank body, the smoking nozzle has a smoking port, and the core body is defined by an air flow inlet and an air flow outlet respectively communicated with the central channel, the air flow inlet is located at an end of the first body away from the second body, the air flow outlet is located at an end of the second body away from the first body, the air flow outlet faces the smoking port and is communicated with the smoking port, the heating core jacket is provided with an atomizer tube, an oil inlet hole is opened on the atomizer tube, the oil inlet hole corresponds to the first body, and the two ends of the atomizer tube are respectively connected to the smoking nozzle and the sealing base.

[0021] The third aspect of the present application also provides an electronic cigarette, comprising the above-mentioned atomizer and a battery core assembly for supplying power to the heating core.

[0022] It should be noted that a large number of technical features are recorded in the specification of the present application, which are distributed in various technical solutions. If all possible combinations of technical features of the present application (i.e., technical solutions) are to be listed, the specification will be too lengthy. In order to avoid this problem, the various technical features of the utility model in the above-mentioned utility model content of the present application, the various technical features of the utility model in the various implementation modes and examples below, and the various technical features of the utility model in the accompanying drawings can be freely combined with each other to form various new technical solutions (these technical solutions are deemed to have been recorded in this specification), unless such a combination of technical features is technically infeasible. For example, in one example, features A+B+C are described, and in another example, features A+B+D+E are described. Features C and D are equivalent technical means that play the same role. Technically, only one of them needs to be used, and it is impossible to use them at the same time. Feature E can be technically combined with feature C. Then the solution of A+B+C+D should not be deemed to have been recorded because it is technically infeasible, while the solution of A+B+C+E should be deemed to have been recorded.

[0023] The heating core, atomizer, and electronic cigarette of the present application have the following beneficial effects: the heating core is designed such that the outer diameter of the second body is smaller than the outer diameter of the first body, so that the wall of the second body becomes thinner, and most of the condensate formed by the aerosol smoke flowing out from the end of the second body and being cooled will flow out from the end of the second body, reducing the flow to the central channel, avoiding clogging the central channel and affecting the normal use of the electronic cigarette; in addition, the heating wire is changed to a grid-shaped heating element, which increases the heating area and increases the temperature of the ceramic body itself, so that the temperature of the aerosol smoke will not cool down too quickly, reducing the formation of condensate, and at the same time increasing the amount of smoke generated by heating the tobacco oil and improving the taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view showing a heating core according to a first embodiment of the present disclosure;

[0025] Figure 2 It shows Figure 1 A cross-sectional view of the heating element in FIG.

[0026] Figure 3 It shows Figure 1 An exploded view of the heating element in the figure;

[0027] Figure 4 It shows Figure 1 An expanded diagram of the heating element of the heating core;

[0028] Figure 5 is a perspective view showing a heating core according to a second embodiment of the present disclosure;

[0029] Figure 6 It shows Figure 5 A cross-sectional view of the heating core in FIG.

[0030] Figure 7 It shows Figure 6 An exploded view of the heating element in the figure;

[0031] Figure 8 It shows Figure 7 An expanded diagram of the heating element of the heating core;

[0032] Fig. 9 is a development diagram showing a heat generating element according to a third embodiment of the present disclosure;

[0033] Fig.10 is an exploded view showing an electronic cigarette according to some embodiments of the present disclosure;

[0034] Fig.11 is a cross-sectional view showing an electronic cigarette according to some embodiments of the present disclosure.

[0035] Reference numerals list:

[0036] Heating core 10;

[0037] The core 100, the central channel 53, the first body 101, the second body 102, and the arc-shaped transition portion 103;

[0038] Heat generating element 110, pin 111, conductive heating portion 113, first heat conducting portion 114, second heat conducting portion 115, first electrical connecting portion 116, second electrical connecting portion 117, first axis H1, second axis H2, third axis H3;

[0039] The oil storage tank body 201, the sealing base 203, the mounting seat 204, the smoking mouthpiece 2011, the air flow outlet 52, the air flow inlet 51, the oil storage cavity 54, the smoking port 55, and the oil inlet hole 56;

[0040] The oil storage tank body 201, the atomizing tube 202, the sealing base 203, the bottom cover 204, the atomizing electrode component 205, the first magnetic component 206, the atomizing electrode component 207, the first magnetic component 208, the battery base 209, the battery bracket 210, the battery 211, the battery housing 212, the PCB board 213, and the power supply interface 214. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0043] It should be noted that all directional indications in the embodiments of the present disclosure, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0044] In the present disclosure, unless otherwise clearly specified and limited, the terms "connected", "fixed", etc. should be understood in a broad sense, for example, it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0045] In this document, "communication" refers to fluid communication, that is, fluids including liquids and / or gases can flow from one component to another component. In addition, in this document, communication between two components can refer to direct communication between the two components, for example, at least partial alignment between two holes, or communication through an intermediate medium.

[0046] In the present disclosure, unless otherwise stated, all numbers used in the specification and claims to represent component parameters, technical effects, etc. should be understood as being modified by the term "approximately" or "roughly" in any case. Therefore, unless otherwise indicated, the numerical parameters listed in the following specification and the attached claims are approximate values. For those skilled in the art, it can vary according to the desired properties and effects sought to be obtained through the present disclosure, and each numerical parameter should be interpreted according to the number of significant digits and conventional rounding methods or in a manner understood by those skilled in the art.

[0047] In the present disclosure, the terms used in the description of various examples are only for the purpose of describing specific examples and are not intended to be limiting. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, the element can be one or more. In addition, the terms "and & or" used in the present disclosure cover any one of the listed items and all possible combinations.

[0048] “E-liquid” refers to a mixture or auxiliary substance that can be completely or partially atomized into an aerosol by an electronic device or similar device.

[0049] "Aerosol" refers to a colloidal dispersion system formed by small solid or liquid particles dispersed and suspended in a gas medium.

[0050] "Atomizer" refers to a device that forms aerosol from stored atomizable substrate, i.e., atomized substrate, by heating or ultrasound, etc. The heating core 10 is one of the main components of the atomizer.

[0051] Typically, a conventional electronic cigarette mainly comprises a cartridge storing an atomized matrix and a power supply device. The cartridge has a heating or evaporation device, such as an atomizer including a heating core 10. The power supply device supplies power to the heating core 10 to convert the atomized matrix in the cartridge into an aerosol for the user to inhale.

[0052] The present application proposes a heating core 10, comprising a core body 100 and a heating element 110, wherein the core body 100 is provided with a central channel 53, and the heating element 110 is embedded in the central channel 53 of the core body 100, and the core body 100 comprises a first body 101 and a second body 102, wherein the outer diameter of the second body 102 is smaller than the outer diameter of the first body 101, and when the heating element 110 is energized, the tobacco oil entering the heating core 10 is heated and atomized to form an aerosol, and the condensate formed after the aerosol flows to the end of the second body and condenses flows outward along the edge of the second body 102, and will gather at the junction end surface 61 of the first body 101 and the second body 102, and the gathered condensate can be sucked into the core body 100 again for reuse, so as to avoid the condensate flowing back into the central channel 53, clogging the central channel 53 and affecting the normal use of the electronic cigarette.

[0053] Refer to the following Figures 1 to 9 The heat generating core 10 of the present disclosure will be described in detail.

[0054] In some examples, the heating core 10 is used to heat an atomization matrix (such as tobacco oil, tobacco liquid, etc.) to atomize the atomization matrix to form an aerosol. The heating core 10 includes a core body 100 and a heating element 110, wherein the core body 100 is provided with a central channel 53, and the core body 100 has an inner wall corresponding to the central channel 53. The core body 100 has a first main body 101 and a second main body 102 connected to each other, and the central channel 53 penetrates the first main body 101 and the second main body 102 axially, and the outer diameter of the second main body 102 is smaller than the outer diameter of the first main body 101. The heating element 110 is a mesh structure, and the heating element 110 is arranged on the inner wall of the core body 100. The heating core 10 is defined with an air flow inlet 51 and an air flow outlet 52, wherein a central channel 53 is configured to provide a path for discharging aerosol, and the first body 101 is defined with an air flow inlet 51 on the side facing away from the second body 102, and the second body 102 is defined with an air flow outlet 52 on the side facing away from the first body 101, so that the gas located at the air flow inlet 51 of the core body 100 can flow out from the air flow outlet 52 via the central channel 53. By designing the outer diameter of the second body 102 to be smaller than the outer diameter of the first body 101, the wall of the second body 102 becomes thinner, and most of the condensed liquid formed by the aerosol flowing out from the end of the air flow outlet 52 of the second body 102 and encountering cold will flow outward from the end of the second body 102, reducing the flow to the central channel 53, avoiding blocking the central channel 53 and affecting the normal use of the electronic cigarette; in addition, the grid-shaped heating element 110 can increase the heating area, increase the temperature of the core 100 itself, so that the temperature of the aerosol smoke will not cool down too quickly, reduce the formation of condensed liquid, and at the same time increase the amount of smoke generated by heating the tobacco oil, thereby improving the taste.

[0055] The first body 101 and the second body 102 are integrally formed to form the core 100, or they can be die-cast and sintered to form the core 100. Figure 1-2 as well as Figure 5-6 As shown, an arc-shaped transition portion 103 is provided at the connection between the first body 101 and the second body 102 to increase the structural strength of the first body 101 and the second body 102 at the intersection to prevent the first body 101 and the second body 102 from breaking. Figure 1-2 , the arc-shaped transition portion 103 smoothly transitions from the side wall of the second body 102 to the side wall of the first body 101. In other examples, see Figure 5-6 The arc-shaped transition portion 103 smoothly transitions from the side wall of the second body 102 to the junction end surface 61 and does not reach the side wall of the first body 101 .

[0056] The first body 101 is formed around a first axis H1, the second body 102 is formed around a second axis H2, the first axis H1 and the second axis H2 coincide, the central channel 53 is formed around a third axis H3, the third axis H3 coincides with the first axis H1 and the second axis H2. That is, the whole core 100 is symmetrical about the central axis. The core 100 is preferably made of ceramic, but is not limited to ceramic, and can also be sintered from mica, diatomaceous earth, etc.

[0057] like Figure 2-3 6-7, the heating element 110 is disposed on the inner wall of the first body 101 corresponding to the central channel 53, and the heating element 110 extends along the circumference of the central channel 53. In some examples, the heating element 110 is made of conductive metal and is at least partially embedded in the inner wall of the core 100. In other examples, the heating element 110 is made of conductive ink and is printed or coated on the inner wall.

[0058] Among them, the heating element 110 is in a grid shape. Compared with the traditional horizontal wire, vertical wire, or spiral heating wire, the e-liquid is heated more evenly, the heating area is increased, carbon deposition is not easy, the amount of smoke generated is increased, and the taste is better. At the same time, the increase in the heating area can increase the overall temperature of the core, prevent the core end from cooling down quickly, and thus improve the problem of smoke condensation when it is cold. In some examples, such as Figure 4 As shown, the heating element 110 includes a conductive heating portion 113, which is composed of a plurality of polygonal grid line arrays arranged to form a circuit loop. The polygons include but are not limited to triangles, quadrilaterals, pentagons, hexagons, etc., and the plurality of polygonal arrays are arranged to form a circuit loop to achieve the purpose of electrical heating.

[0059] In some instances, the heating element 110 further includes a first heat-conducting portion 114 and / or a second heat-conducting portion 115. The first heat-conducting portion 114 is connected to one side of the conductive heating portion 113 and extends in a direction away from the conductive heating portion 113; the second heat-conducting portion 115 is connected to the other side of the conductive heating portion 113 and extends in a direction away from the conductive heating portion 113. It is understandable that the conductive heating portion 113 may be connected to the first heat-conducting portion 114, or only to the second heat-conducting portion 115, or the conductive heating portion 113 may be connected to the first heat-conducting portion 114 and the second heat-conducting portion 115 at the same time. The first heat-conducting portion 114 and the second heat-conducting portion 115 further expand the heating area and extend toward the end of the core 100 to avoid rapid cooling of the end of the core 110 and to avoid rapid cooling and condensation of smoke at the end of the core 110. In some instances, see Figure 4 and Figure 8The first heat conducting portion 114 and the second heat conducting portion 115 extend axially from the polygonal tip of the conductive heating portion 113 to both ends. Fig. 9 The first heat conducting portion 114 and the second heat conducting portion 115 are formed by continuing to extend along the polygonal side lines of the conductive heating portion 113 .

[0060] In some examples, the heating element 110 further includes a first electrical connection portion 116 and a second electrical connection portion 117 , wherein the first electrical connection portion 116 and the second electrical connection portion 117 are electrically connected to two ends of the conductive heating portion 113 , respectively, to function as conductive electrodes.

[0061] Among them, the electric heating part, the first heat conducting part, the second heat conducting part, the first electrical connection part, and the second electrical connection part can be made of the same metal or different metals, depending on the needs, including but not limited to copper, tungsten, gold, silver, aluminum, nickel or nickel-chromium alloy, iron-chromium-aluminum alloy, etc. The first electrical connection part 116, the second electrical connection part 117, the conductive heating part 113, the first heat conducting part 114, and the second heat conducting part 115 can be integrally formed or welded to each other.

[0062] The first electrical connection portion 116 and the second electrical connection portion 117 are respectively connected with pins 111 , and the two pins 111 are respectively connected to the edges of the first electrical connection portion 116 and the second electrical connection portion 117 close to the conductive heating portion 113 to minimize resistance and increase current.

[0063] Figure 1-4 A first embodiment is shown, specifically, the conductive heating part 113 is composed of a plurality of hexagonal arrangements, the first heat conducting part 114 and the second heat conducting part 115 are arranged on opposite vertices of the hexagons, and the first heat conducting part 114 and the second heat conducting part 115 are arranged in parallel with the first electrical connection part 116 and the second electrical connection part 117.

[0064] Figures 5 to 8 The heating core 10 of the second embodiment is shown. The conductive heating portion 113 is composed of a plurality of quadrilaterals. The first heat conducting portion 114 and the second heat conducting portion 115 are arranged at opposite vertices of the quadrilaterals, and the first heat conducting portion 114 and the second heat conducting portion 115 are arranged in parallel with the first electrical connection portion 116 and the second electrical connection portion 117.

[0065] Fig. 9 The heat generating core 10 of the third embodiment is shown. The conductive heating portion 113 is composed of a plurality of quadrilaterals arranged in a combination. The first heat conducting portion 114 and the second heat conducting portion 115 continue to extend along the edges of the quadrilaterals.

[0066] refer to Figure 10-11As shown, according to another aspect of the present disclosure, an atomizer is provided, comprising: an oil storage tank body 201, an atomization tube 202, a sealing base 203, a bottom cover 204, an atomization electrode member 205, and a first magnetic attraction member 206;

[0067] The oil storage tank body 201 and the sealing base 203 enclose an oil storage cavity 54, one end of the oil storage tank body 201 is provided with a smoking mouthpiece 2011, and the smoking mouthpiece 2011 is provided with a smoking port 55. The oil storage tank body 201 is provided with a smoke guide tube extending from the smoking port 55 to the oil storage cavity 54, and the smoking port 55 is communicated with the smoke guide tube. The heating core 10 is mounted on the sealing base 203, and the atomization tube 202 is arranged on the periphery of the heating core 10, and the atomization tube 202 is abutted against the smoke guide tube. The bottom cover 204 is arranged on the side of the sealing base 203 away from the oil storage tank body 201, and the atomization electrode component 205 and the first magnetic suction component 206 are embedded in the bottom cover 204 and are exposed on the side away from the oil storage cavity 54.

[0068] Among them, one end of the oil storage tank body 201 is provided with a smoking mouthpiece 2011, the sealing base 203 is sealed at the other end of the oil storage tank body 201, the smoking mouthpiece 2011 has a smoking port 55, the heating core 10 is defined by an air flow inlet 52 and an air flow outlet 51 respectively communicated with the central channel 53, the air flow inlet 52 is located at the end of the first main body 101 away from the second main body 102, the air flow outlet 51 is located at the end of the second main body 102 away from the first main body 101, the air flow outlet 51 faces the smoking port 55, the heating core 10 is outerly provided with an atomizer tube 202, the atomizer tube 202 is provided with an oil inlet hole 56, the oil inlet hole 56 corresponds to the first main body 101, and the two ends of the atomizer tube 202 are respectively connected to the smoking mouthpiece 2011 and the sealing base 203.

[0069] Figure 10-11 As shown, according to another aspect of the present disclosure, there is provided an electronic cigarette, comprising: the above-mentioned atomizer; and a battery core assembly for supplying power to the atomizer.

[0070] The battery core assembly includes: an atomizing electrode component 207 , the first magnetic attraction component 208 , a battery base 209 , a battery bracket 210 , a battery 211 , a battery housing 212 , a PCB board 213 , and a power supply interface 214 .

[0071] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system 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, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0072] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0073] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating core, characterized in that: include: A core body, wherein the core body is provided with a central channel, the core body has an inner wall corresponding to the central channel, the core body has a first body and a second body connected to each other, the central channel extends through the first body and the second body, and the outer diameter of the second body is smaller than the outer diameter of the first body; as well as A heating element is provided on a wall of the core body corresponding to the central channel, and the heating element is a mesh structure.

2. The heating core according to claim 1, characterized in that: The core body is defined by an air flow inlet and an air flow outlet which are respectively communicated with the central channel, the air flow inlet is located at one end of the first body, and the air flow outlet is located at one end of the second body; the heating element extends along the circumference of the central channel and is arranged on the inner wall of the first body corresponding to the central channel.

3. The heating core according to claim 2, characterized in that: The heating element is made of conductive metal and is at least partially embedded in the inner wall; or the heating element is made of conductive ink and is printed or coated on the inner wall.

4. The heating core according to claim 3, characterized in that: The heating element comprises a conductive heating portion, and the conductive heating portion is formed by a circuit loop arranged in a plurality of polygonal grid line arrays.

5. The heating core according to claim 4, characterized in that: The heating element also includes a first heat conducting part and / or a second heat conducting part, wherein the first heat conducting part is connected to one side of the conductive heating part and extends in a direction away from the conductive heating part; the second heat conducting part is connected to the other side of the conductive heating part and extends in a direction away from the conductive heating part.

6. The heating core according to claim 4, characterized in that: The heating element further includes a first electrical connection portion and a second electrical connection portion, wherein the first electrical connection portion and the second electrical connection portion are electrically connected to two ends of the conductive heating portion, respectively.

7. The heating core according to claim 6, characterized in that: The first electrical connection portion and the second electrical connection portion are respectively formed integrally with the conductive heating portion.

8. The heating core according to claim 1, characterized in that: The first body is formed around a first axis, the second body is formed around a second axis, and the first axis and the second axis coincide with each other; The central passage is formed about a third axis that is coincident with the first and second axes.

9. The heating core according to claim 6, characterized in that: The first electrical connection portion and the second electrical connection portion are respectively connected with pins; The two pins are respectively connected to the first electrical connection portion and the second electrical connection portion at edges close to the conductive heating portion.

10. The heating core according to claim 1, characterized in that: The core is made of porous ceramic.

11. The heating core according to claim 1, characterized in that: An arc-shaped transition portion is provided at a connection between the first body and the second body.

12. An atomizer, characterized in that: The heating core comprises the heating core according to any one of claims 1 to 11.

13. The atomizer according to claim 12, characterized in that The invention comprises an oil storage tank body and a sealing base, wherein an oil storage cavity is formed in the oil storage tank body, a smoking nozzle is provided at one end of the oil storage tank body, the sealing base is sealed at the other end of the oil storage tank body, the smoking nozzle has a smoking port, the core body is defined with an air flow inlet and an air flow outlet which are respectively communicated with the central channel, the air flow inlet is located at an end of the first body away from the second body, the air flow outlet is located at an end of the second body away from the first body, the air flow outlet faces the smoking port and is communicated with the smoking port, the heating core jacket is provided with an atomizer tube, an oil inlet hole is opened on the atomizer tube, the oil inlet hole corresponds to the first body, and the two ends of the atomizer tube are respectively connected to the smoking nozzle and the sealing base.

14. An electronic cigarette, characterized in that: It comprises the atomizer described in any one of claims 12-13 and a battery core assembly for supplying power to the heating core.

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