Heat exchange core, heating assembly and atomization device

By designing the bottom-to-up and inward-to-out heating method of the heat exchanger core, the paper smell problem caused by baking wrapping paper by traditional atomization devices is solved, and the suction experience and heating efficiency are improved.

CN222997418UActive Publication Date: 2025-06-20SHENZHEN GEEKVAPE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421502977.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-06-20
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

When traditional atomization devices heat solid atomization medium, they are easily baked to the wrapping paper, causing the paper smell to affect the suction experience.

Method used

A heat exchange core is designed, including a main heat exchange part and a central heat exchange part, and a heating method from bottom to top and from inside to out is adopted to prevent the hot air flow from directly in contact with the wrapping paper.

Benefits of technology

It effectively reduces the paper smell risk caused by direct baking wrapping paper, and improves the suction experience and heating efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222997418U_ABST
    Figure CN222997418U_ABST
Patent Text Reader

Abstract

The utility model relates to a heat exchange core, a heating assembly and an atomization device. The utility model discloses a heat exchange core, a heating assembly and an atomization device, and belongs to the technical field of atomization. The heat exchange core comprises a main body heat exchange part and a central heat exchange part, the main body heat exchange part is provided with an air inlet face and a heat exchange face which are oppositely arranged, a central air inlet channel and a peripheral air inlet channel are formed in the main body heat exchange part, the peripheral air inlet channel is arranged around the periphery of the central air inlet channel, and the central heat exchange part protrudes out of the heat exchange face. The central heat exchange part is provided with an open cavity and an air outlet hole, and the open cavity is communicated between the central air inlet channel and the air outlet hole. According to the heat exchange core, the heating assembly and the atomization device, the suction experience can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to a heat exchange core, a heating component and an atomization device. Background Art

[0002] Heat Not Burn (HNB) technology refers to a type of atomization technology that uses heating to bake out substances (such as nicotine) in a solid atomization medium to form an aerosol that can be inhaled.

[0003] With the development of atomization technology, more and more atomization devices that can heat solid atomization media without burning them have appeared in people's daily lives. In the process of heating and baking solid atomization media, traditional atomization devices are prone to burn the wrapping paper on the outer side of the solid atomization media, producing a paper smell, which affects the smoking experience. Utility Model Content

[0004] Based on this, it is necessary to provide a heat exchange core, a heating component and an atomization device that can enhance the smoking experience in order to address the above problems.

[0005] A heat exchange core, which includes a main heat exchange part and a central heat exchange part, the main heat exchange part has an air inlet surface and a heat exchange surface arranged opposite to each other, and the main heat exchange part is provided with a central air inlet channel and a peripheral air inlet channel, the peripheral air inlet channel is arranged around the periphery of the central air inlet channel, the central heat exchange part protrudes from the heat exchange surface, and the central heat exchange part has an open cavity and an air outlet, and the open cavity is connected between the central air inlet channel and the air outlet.

[0006] In some embodiments, the central heat exchange portion includes a large section and a small section, the large section is mounted on the heat exchange surface, the small section is connected to an end of the large section away from the heat exchange surface, and the open cavity extends from the large section to the small section;

[0007] Wherein, in the direction from the large segment to the small segment, the outer diameter of the small segment gradually decreases.

[0008] In some embodiments, the air outlet is opened on the large section.

[0009] In some of the embodiments, a plurality of groups of the air outlet holes are provided on the large section, each group of the air outlet holes is arranged around the circumference of the large section, and each group of the air outlet holes is arranged at intervals along the extension direction of the large section.

[0010] In some embodiments, the heat exchange core further includes an edge heat exchange portion, which protrudes from the heat exchange surface and is arranged around the periphery of all the peripheral air inlet channels, and the inner surface of the edge heat exchange portion and the heat exchange surface define a groove.

[0011] A heating assembly, comprising:

[0012] A heat exchange core as described in any one of the above embodiments; and

[0013] A heat generating element is disposed on the heat exchange core and is disposed around the periphery of a portion of the heat exchange core where the peripheral air inlet passage is disposed.

[0014] In some embodiments, the air inlet surface is concave to form a limit groove, and the limit groove separates the main heat exchange part into a main heat exchange part and a peripheral limit part. The peripheral air inlet channel is arranged on the main heat exchange part, and the heat generating element is arranged in the limit groove between the main heat exchange part and the peripheral limit part.

[0015] Some of the embodiments further include a sealing heat-insulating colloid, which is filled in the gap between the periphery of the heating element and the groove wall of the limiting groove.

[0016] In some embodiments, the sealing and heat-insulating colloid is a ceramic colloid.

[0017] An atomizing device, comprising:

[0018] A shell having a heat exchange cavity therein and a plug hole communicating with the heat exchange cavity is provided on the shell; and

[0019] As in any one of the above embodiments, the heating component is arranged in the heat exchange cavity, and the central axis of the central heat exchange part is colinear with the central axis of the socket.

[0020] The heat exchange core, heating assembly and atomizing device described above can heat the solid atomizing medium from bottom to top and from inside to outside by designing the heat exchange core to include a main heat exchange part and a central heat exchange part. Since the wrapping paper is only wrapped around the outer circumference of the solid atomizing medium, the bottom-to-top and inside-to-out heating method avoids direct contact between the hot air flow and the wrapping paper, thereby reducing the risk of directly baking the wrapping paper and causing a paper taste when the aerosol is inhaled, and improving the inhalation experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an atomization device in one embodiment of the present application;

[0022] Figure 2 for Figure 1Cross-sectional view of the atomization device shown along the A-A direction;

[0023] Figure 3 is Figure 2 Enlarged schematic view of the partial structure B in the atomization device shown;

[0024] Figure 4 Schematic structural view of the heating component in an embodiment of the present application;

[0025] Figure 5 is Figure 4 Exploded view of the heating component shown;

[0026] Figure 6 is Figure 4 Inverted view of the heating component shown;

[0027] Figure 7 is Figure 6 Schematic structural view of the cooperation between the heat exchange core and the heating element in the heating component shown;

[0028] Figure 8 Schematic structural view of the heat exchange core in an embodiment of the present application;

[0029] Figure 9 is Figure 8 Bottom view of the heat exchange core shown.

[0030] Reference numerals in the drawings:

[0031] 1. Atomization device; 2. Solid atomization medium;

[0032] 10. Heating component; 20. Housing;

[0033] 11. Heat exchange core; 111. Main heat exchange part; 1111. Air intake surface; 1112. Heat exchange surface; 1113. Central air intake channel; 1114. Peripheral air intake channel; 1115. Limiting groove; 1116. Main heat exchange part; 1117. Peripheral limiting part; 112. Central heat exchange part; 1121. Open cavity; 1122. Air outlet hole; 1123. Large section; 1124. Small section; 113. Edge heat exchange part; 114. Groove; 12. Heating element; 13. Sealing and heat-insulating colloid; 21. Jack; 22. Heat exchange cavity. Detailed implementation manners

[0034] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0037] In the present application, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0039] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0040] Please refer to Figure 1 , this application provides an atomization device 1, and the atomization device 1 is used to heat and bake a solid atomization medium 2 so that substances (such as nicotine) in the solid atomization medium 2 are precipitated to form an aerosol that can be sucked.

[0041] Please also refer to Figures 2 to 5 , the atomization device 1 includes a housing 20 and a heating component 10. There is a heat exchange cavity 22 in the housing 20, and a jack 21 communicating with the heat exchange cavity 22 is opened on the housing 20. The heating component 10 is disposed in the heat exchange cavity 22, and the solid atomization medium 2 is inserted into the heat exchange cavity 22 through the jack 21. The heating component 10 heats and bakes the solid atomization medium 2 in the heat exchange cavity 22 so that the solid atomization medium 2 can form an aerosol that can be sucked.

[0042] Among them, the heating component 10 includes a heat exchange core 11 and a heating element 12. The solid atomization medium 2 is inserted into the jack 21 and partially extends into the heat exchange cavity 22, and the solid atomization medium 2 is aligned with the heat exchange core 11. The heating element 12 is disposed on the heat exchange core 11. After the heating element 12 is powered on, it transfers heat to the heat exchange core 11. When the external air flow passes through the heat exchange core 11, it absorbs the heat of the heat exchange core 11 and the temperature rises to form a hot air flow. Furthermore, when the hot air flow blows towards the solid atomization medium 2, it heats and bakes the solid atomization medium 2 to generate an aerosol.

[0043] Specifically, the heating element 12 can be an electric heating component such as a heating wire or a heating mesh. The heat exchange core 11 is made of a material that is insulating and has good heat conduction performance, such as aluminum alloy with insulation treatment. The manufacturing materials of the heating element 12 and the heat exchange core 11 can be specifically set according to requirements.

[0044] Please refer to again Figure 3 , and at the same time refer to Figure 8 and Figure 9, the heat exchange core 11 includes a main heat exchange part 111 and a central heat exchange part 112. The heating element 12 is disposed on the main heat exchange part 111, and the heating element 12 is used to heat the main heat exchange part 111 and the central heat exchange part 112. The main heat exchange part 111 has an intake surface 1111 and a heat exchange surface 1112 disposed opposite to each other, and a central intake channel 1113 and a peripheral intake channel 1114 are formed on the main heat exchange part 111. The peripheral intake channel 1114 is disposed around the outer periphery of the central intake channel 1113. The central heat exchange part 112 protrudes from the heat exchange surface 1112, and the central heat exchange part 112 has an open cavity 1121 and an air outlet hole 1122. The open cavity 1121 communicates between the central intake channel 1113 and the air outlet hole 1122. The central axis of the central heat exchange part 112 is collinear with the central axis of the jack 21.

[0045] Specifically, the central heat exchange part 112 and the main heat exchange part 111 can be integrally formed or separately formed, which can be specifically set according to requirements.

[0046] Take Figure 3 the state of the atomization device 1 as an example. The jack 21 is located above the heat exchange cavity 22, the heat exchange surface 1112 is located above the intake surface 1111, and the solid atomization medium 2 is inserted into the heat exchange cavity 22 from top to bottom and is always located above the heat exchange surface 1112. Optionally, the solid atomization medium 2 can be in direct contact with the heat exchange surface 1112, or the solid atomization medium 2 can also be spaced from the heat exchange surface 1112.

[0047] Generally, the solid atomization medium 2 is generally inserted into the jack 21 in the center, so that the central axis of the solid atomization medium 2, the central axis of the central heat exchange part 112, and the central axis of the jack 21 are collinear. During the process of inserting the solid atomization medium 2 and gradually approaching the main heat exchange part 111, the central heat exchange part 112 is also inserted into the solid atomization medium 2.

[0048] During actual operation, the heating element 12 heats the heat exchange core 11, so that the temperatures in the peripheral intake channel 1114 and the central intake channel 1113 increase. When the outside air flow passes through the peripheral intake channel 1114, the outside air flow absorbs the heat of the peripheral intake channel 1114 and the temperature increases to form a hot air flow. Furthermore, the hot air flow flows from the bottom of the solid atomization medium 2 to the solid atomization medium 2 and diffuses from the bottom to the top along the axial direction of the solid atomization medium 2 to heat the solid atomization medium 2. When the outside air flow passes through the central intake channel 1113, the outside air flow absorbs the heat of the central intake channel 1113 and the temperature also increases to form a hot air flow. Furthermore, the hot air flow enters the open cavity 1121 of the central heat exchange part 112 and is blown out from the air outlet hole 1122 of the central heat exchange part 112. The blown hot air flow diffuses from the center of the solid atomization medium 2 to the outside along the radial direction of the solid atomization medium 2 to heat the solid atomization medium 2.

[0049] In the present application, the heat exchange core 11 is designed to include a main heat exchange portion 111 and a central heat exchange portion 112, so that the solid atomized medium 2 can be heated from bottom to top and from inside to outside. Since the wrapping paper is only wrapped around the outer peripheral side of the solid atomized medium 2, the heating method from bottom to top and from inside to outside avoids direct contact between the hot air flow and the wrapping paper, thereby reducing the risk of directly baking the wrapping paper and causing a paper taste when the aerosol is inhaled, and improving the inhalation experience.

[0050] In addition, the thermal conductivity of the wrapping paper is low. If the hot air flow directly contacts the wrapping paper and bakes it from the outside to the inside, and the heat penetrates from the outside to the inside, it will lead to heat waste and reduced heating efficiency. In the present application, when the hot air flow is from bottom to top and heats from the inside to the outside, the hot air flow directly contacts the solid atomized medium 2, which is not only conducive to improving the heating efficiency, but also can evenly heat the solid atomized medium 2, and the heating effect is better.

[0051] As an example, the peripheral air inlet channels 1114 may be one group or multiple groups. If there are multiple groups, each group of peripheral air inlet channels 1114 is arranged around the periphery of the central air inlet channel 1113, and all groups of peripheral air inlet channels 1114 are arranged from inside to outside along the radial direction of the main heat exchange portion 111. By providing multiple groups of peripheral air inlet channels 1114, the hot air flow can be more evenly distributed to the bottom of the solid atomized medium 2, and the bottom of the solid atomized medium 2 is evenly heated.

[0052] As an example, the aperture of the peripheral air inlet passage 1114 is in the range of 0.3 mm (millimeters) to 0.6 mm.

[0053] As an example, the aperture of the central air inlet channel 1113 is larger than the aperture of each peripheral air inlet channel 1114. For example, the aperture of the central air inlet channel 1113 is 0.6 mm. In this way, the external airflow can be divided into two parts relatively evenly, one part passes through all the peripheral air inlet channels 1114 and blows toward the bottom of the solid atomized medium 2 from the peripheral air inlet channels 1114, and the other part enters the open cavity 1121 from the central air inlet channel 1113 and is finally blown out from the center of the solid atomized medium 2 through the air outlet 1122.

[0054] As an example, the height of the central heat exchange part 112 protruding from the heat exchange surface 1112 is 10 mm. Therefore, when the central heat exchange part 112 is inserted into the solid atomized medium 2, the insertion depth of the central heat exchange part 112 can reach approximately 10 mm, so that the central heat exchange part 112 and the solid atomized medium 2 can be stably matched.

[0055] In some alternative embodiments of the present application, the central heat exchange portion 112 includes a large section 1123 and a small section 1124. The large section 1123 is installed on the heat exchange surface 1112, and the small section 1124 is connected to one end of the large section 1123 away from the heat exchange surface 1112, and the open cavity 1121 extends from the large section 1123 to the small section 1124. Among them, in the direction from the large section 1123 to the small section 1124, the outer diameter of the small section 1124 gradually decreases. This method is beneficial to reducing the resistance during the process of inserting the central heat exchange portion 112 into the solid atomization medium 2, and facilitating the insertion connection between the central heat exchange portion 112 and the solid atomization medium 2.

[0056] It can be understood that taking Figure 3 the state of the atomization device 1 as an example, the solid atomization medium 2 is inserted from top to bottom, while the heat exchange central portion is inserted into the solid atomization medium 2 from bottom to top. The direction from bottom to top is the direction from the large section 1123 to the small section 1124.

[0057] In some alternative embodiments of the present application, the air outlet 1122 is opened on the large section 1123. Obviously, the diameter of the large section 1123 is larger than that of the small section 1124, so the mechanical strength of the large section 1123 is also greater than that of the small section 1124. Therefore, setting the air outlet 1122 on the large section 1123 can maintain the mechanical strength of the central heat exchange portion 112 to reduce the risk of fracture during the process of inserting the central heat exchange portion 112 into the solid atomization medium 2.

[0058] In some alternative embodiments of the present application, multiple groups of air outlets 1122 are opened on the large section 1123. Each group of air outlets 1122 is arranged around the circumference of the large section 1123, and each group of air outlets 1122 is arranged at intervals along the extension direction of the large section 1123. By setting multiple groups of air outlets 1122, therefore, the hot air flow can be evenly blown out along the circumference of the central heat exchange portion 112, and the heating is more uniform, thereby avoiding the occurrence of a poor suction experience caused by excessive local temperature.

[0059] In some alternative embodiments of the present application, the heat exchange core 11 further includes an edge heat exchange portion 113. The edge heat exchange portion 113 protrudes from the heat exchange surface 1112 and is arranged around the outer circumference of all the peripheral air inlet channels 1114. The inner surface of the edge heat exchange portion 113 and the heat exchange surface 1112 define a groove 114.

[0060] In this embodiment, the solid atomized medium 2 is supported on the end surface of the edge heat exchange portion 113 away from the heat exchange surface 1112, and is spaced apart from the heat exchange surface 1112. Under this design, not only can the solid atomized medium 2 be reduced from contacting the heat exchange surface 1112 and causing the peripheral air inlet channel 1114 to be blocked, so that the heat exchange core 11 can discharge air normally, but also, the solid atomized medium 2 is not in direct contact with the heat exchange surface 1112, and the solid atomized medium 2 is prevented from overheating and burning, thereby affecting the smoking experience. In addition, the hot air flow blown out by each peripheral air inlet channel 1114 is evenly mixed in the groove 114, and the bottom of the solid atomized medium 2 can also be evenly heated, thereby further improving the heating effect.

[0061] Please also read Figures 6 to 9 In some optional embodiments of the present application, the heating element 12 is disposed around the periphery of the portion of the heat exchange core 11 provided with the peripheral air inlet channel 1114. Therefore, the heat of the heating element 12 is radiated into the central air inlet channel 1113 and the peripheral air inlet channel 1114 surrounding the heating element 12, so that the external air flow can be heated when flowing through the peripheral air inlet channel 1114 and the central air inlet channel 1113.

[0062] In some optional embodiments of the present application, the air inlet surface 1111 is concave to form a limiting groove 1115, and the limiting groove 1115 divides the main heat exchange part 111 into a main heat exchange part 1116 and a peripheral limiting part 1117. The peripheral air inlet channel 1114 is arranged on the main heat exchange part 1116, and the heating element 12 is arranged in the limiting groove 1115 between the main heat exchange part 1116 and the peripheral limiting part 1117. Among them, the shape of the limiting groove 1115 is adapted to the heating element 12, so that the heating element 12 can be securely limited in the limiting groove 1115. The setting of the limiting groove 1115 can facilitate the installation of the heating element 12.

[0063] In some optional embodiments of the present application, the heating component 10 further includes a sealed heat-insulating colloid 13, which is filled in the gap between the periphery of the heating element 12 and the groove wall of the limiting groove 1115. The provision of the sealed heat-insulating colloid 13 enables the heating element 12 to be securely fixed in the limiting groove 1115 to reduce the risk of the heating element 12 falling. In addition, the sealed heat-insulating colloid 13 also has a relatively low thermal conductivity, which can reduce the risk of heat diffusion outward, so that the heat can be concentrated in the peripheral air inlet channel 1114 and the central air inlet channel 1113, so as to efficiently heat the external airflow.

[0064] During the actual glue pouring, the sealing and insulating colloid 13 initially has a certain fluidity. After the sealing and insulating colloid 13 is poured into the limiting groove 1115 and contacts with the heating element 12, the entire heat exchange core 11 is placed in a baking device such as a boiler or an oven for low-temperature sintering, so that the sealing and insulating colloid 13 can solidify, thereby achieving the purpose of fixing the heating element 12 in the limiting groove 1115.

[0065] As an example, the sealing and insulating colloid 13 can be ceramic colloid, water glass (NaSiO3), silicate gel (mainly composed of Al2O3 and SiO2). Taking the sealing and insulating colloid 13 as a ceramic colloid as an example, the ceramic colloid has the characteristics of easy material acquisition and low cost, which is conducive to reducing the manufacturing cost of the atomization device 1.

[0066] The heat exchange core 11, the heating assembly 10 and the atomizing device 1 can heat the solid atomizing medium 2 from bottom to top and from inside to outside by designing the heat exchange core 11 to include a main heat exchange portion 111 and a central heat exchange portion 112. Since the wrapping paper is only wrapped around the outer circumference of the solid atomizing medium 2, the heating method from bottom to top and from inside to outside avoids direct contact between the hot air flow and the wrapping paper, thereby reducing the risk of directly baking the wrapping paper and causing a paper taste when the aerosol is inhaled, and improving the inhalation experience.

[0067] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A heat exchange core, characterized in that: The heat exchange core comprises a main heat exchange portion (111) and a central heat exchange portion (112); the main heat exchange portion (111) has an air inlet surface (1111) and a heat exchange surface (1112) arranged opposite to each other; the main heat exchange portion (111) is provided with a central air inlet channel (1113) and a peripheral air inlet channel (1114); the peripheral air inlet channel (1114) is arranged around the periphery of the central air inlet channel (1113); the central heat exchange portion (112) protrudes from the heat exchange surface (1112); the central heat exchange portion (112) has an open cavity (1121) and an air outlet hole (1122); the open cavity (1121) is connected between the central air inlet channel (1113) and the air outlet hole (1122).

2. The heat exchange core according to claim 1, characterized in that: The central heat exchange portion (112) comprises a large section (1123) and a small section (1124), the large section (1123) is installed on the heat exchange surface (1112), the small section (1124) is connected to an end of the large section (1123) away from the heat exchange surface (1112), and the open cavity (1121) extends from the large section (1123) to the small section (1124); Wherein, in the direction from the large section (1123) to the small section (1124), the outer diameter of the small section (1124) gradually decreases.

3. The heat exchange core according to claim 2, characterized in that: The air outlet (1122) is provided on the large section (1123).

4. The heat exchange core according to claim 3, characterized in that: The large section (1123) is provided with a plurality of groups of air outlet holes (1122), each group of air outlet holes (1122) is arranged around the circumference of the large section (1123), and each group of air outlet holes (1122) is arranged at intervals along the extension direction of the large section (1123).

5. The heat exchange core according to claim 1, characterized in that: The heat exchange core further comprises an edge heat exchange portion (113), which protrudes from the heat exchange surface (1112) and is arranged around the periphery of all the peripheral air inlet channels (1114), and the inner surface of the edge heat exchange portion (113) and the heat exchange surface (1112) define a groove (114).

6. A heating component, characterized in that: include: The heat exchange core according to any one of claims 1 to 5; as well as A heating element (12), wherein the heating element (12) is arranged on the heat exchange core and is arranged around the periphery of a portion of the heat exchange core where the peripheral air inlet channel (1114) is arranged.

7. The heating assembly according to claim 6, characterized in that The air inlet surface (1111) is concave to form a limiting groove (1115), and the limiting groove (1115) divides the main heat exchange part (111) into a main heat exchange part (1116) and a peripheral limiting part (1117). The peripheral air inlet channel (1114) is arranged on the main heat exchange part (1116), and the heat generating element (12) is arranged in the limiting groove (1115) between the main heat exchange part (1116) and the peripheral limiting part (1117).

8. The heating assembly according to claim 7, characterized in that It also includes a sealing heat-insulating colloid (13), wherein the sealing heat-insulating colloid (13) is filled in the gap between the periphery of the heating element (12) and the groove wall of the limiting groove (1115).

9. The heating assembly according to claim 8, characterized in that The sealing and heat-insulating colloid (13) is a ceramic colloid.

10. An atomizing device, characterized in that: The atomizing device comprises: A shell (20) having a heat exchange cavity (22) therein and a plug hole (21) communicating with the heat exchange cavity (22) is provided thereon; and The heating component as described in any one of claims 6 to 9 is arranged in the heat exchange cavity (22), and the central axis of the central heat exchange portion (112) is colinear with the central axis of the insertion hole (21).