Heating assembly and atomization device

Abstract

The utility model relates to the technical field of smoke atomization, and particularly discloses a heating assembly and an atomization device. The heating assembly comprises an atomizing pipe and a heating assembly, wherein the atomizing pipe is provided with an atomizing cavity; the heating bodies are sequentially arranged at one end of the atomization pipe in the axial direction of the atomization cavity, and a mixing cavity is formed between every two adjacent heating bodies; the heating body is provided with a plurality of heating holes which are communicated with the mixing cavity. As at least two heating bodies are included, the number of the heating bodies is increased, and the heating efficiency can be improved; moreover, a spaced mixing cavity is formed between every two adjacent heating bodies, so that the air heated by the first heating body is firstly subjected to mixing heat exchange and temperature uniformization in the mixing cavity and then enters the second heating body to be heated, more sufficient heating is achieved, the air heating uniformity and heating efficiency are improved, and the heating efficiency of the air is improved. And the air heated to a sufficient temperature enters the atomized matrix, so that the smoking taste is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke atomization, and particularly relates to a heating component and an atomization device. Background Art

[0002] The heat-not-burn smoking device is used for inserting a cigarette stick for use. The heat-not-burn smoking device can heat the inside of the atomization matrix by adding air and introducing the heated air into the atomization matrix.

[0003] However, the current heat-not-burn smoking device has low efficiency in heating air, resulting in insufficient temperature of the air flow entering the atomization matrix and affecting the smoking taste. Summary of the Utility Model

[0004] The utility model provides a heating component and an atomization device for solving the problem of low air heating efficiency.

[0005] In one embodiment, a heating component is provided, including:

[0006] An atomization tube having an atomization cavity for inserting an atomization matrix; and

[0007] At least two heating bodies sequentially arranged along the axial direction of the atomization cavity at one end of the atomization tube, with a mixing cavity between adjacent two heating bodies; each heating body has a plurality of heating holes along the axial direction of the atomization tube and penetrating through the heating body, the heating holes are communicated with the mixing cavity, and the heating holes are used for introducing air into the mixing cavity and heating the air passing through the heating holes.

[0008] In one embodiment, a raised portion is provided at one end or both ends of the heating body, and adjacent heating bodies are connected through the raised portion, and the raised portion forms the mixing cavity by spacing adjacent two heating bodies.

[0009] In one embodiment, the heating holes of adjacent heating bodies are arranged in a staggered manner along the axial direction of the atomization tube.

[0010] In one embodiment, at least part of the heating body is located inside the atomization tube, the atomization tube is a heat-conducting tube, and the heating body is further used for transferring heat energy to the atomization tube, and the atomization tube is used for circumferentially heating the inserted atomization matrix.

[0011] In one embodiment, a raised spacer is provided on the inner wall of the atomization tube, the spacer is located between adjacent two heating bodies, and the spacer forms the mixing cavity by spacing adjacent two heating bodies.

[0012] In one embodiment, one end or both ends of the heating body in the axial direction of the atomizing tube are provided with a resistive heating layer for converting electrical energy into heat energy; the resistive heating layer is disposed in the mixing cavity.

[0013] In one embodiment, a first electrode layer is provided on the pore wall of one of the heating holes of the heating body, or an electrode hole extending in the same direction as the heating hole is provided on the heating body, and the pore wall of the electrode hole is provided with a first electrode layer; and

[0014] A second electrode layer is provided on the circumferential wall surface of the heating body, and both the first electrode layer and the second electrode layer are electrically connected to the resistive heating layer.

[0015] In one embodiment, it further includes an upper mounting seat having a plugging cavity. The upper mounting seat is axially butted with the atomizing tube, the plugging cavity communicates with the atomizing cavity, the atomizing cavity is used to accommodate the end of the atomizing matrix, and the plugging cavity is used to accommodate the middle part of the atomizing matrix; the outer tube is spaced apart from the circumferential outside of the atomizing tube, one end of the outer tube is connected to the upper mounting seat, and the other end is connected to the lower mounting seat.

[0016] In one embodiment, one end of the atomizing tube is fixedly connected to the outer tube and / or the upper mounting seat, and the other end of the atomizing tube is spaced apart from the lower mounting seat.

[0017] In one embodiment, an atomizing device is provided, including an atomizing shell, a circuit board, a battery, and the above-mentioned heating component. The circuit board, the battery, and the heating component are disposed in the atomizing shell, and the circuit board is electrically connected to the battery and the heating body respectively.

[0018] According to the heating component and the atomizing device of the above embodiment, since at least two heating bodies are included, increasing the number of heating bodies can improve the heating efficiency; moreover, there is a spaced mixing cavity between adjacent two heating bodies, so that the air heated by the first heating body will first be mixed and heat-exchanged in the mixing cavity to equalize the temperature, and then enter the second heating body for heating, achieving more sufficient heating, thereby improving the uniformity and heating efficiency of air heating. The air heated to a sufficient temperature enters the atomizing matrix to ensure the smoking taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the heating component in one embodiment;

[0020] Figure 2 It is a cross-sectional view of the heating component plugging the atomizing matrix in one embodiment;

[0021] Figure 3 It is a schematic structural view of the heating body in one embodiment;

[0022] Figure 4 It is a schematic structural diagram of a heating element in an embodiment;

[0023] Figure 5 It is a cross-sectional view of a heating assembly in an embodiment;

[0024] Figure 6 It is a cross-sectional view of a heating assembly in an embodiment;

[0025] Figure 7 It is a cross-sectional view of a heating assembly in an embodiment;

[0026] Figure 8 It is a schematic structural diagram of an atomizing device in an embodiment;

[0027] Figure 9 It is a cross-sectional view of an atomizing device in an embodiment;

[0028] The reference numerals are as follows:

[0029] 1 - atomizing tube, 11 - atomizing chamber, 12 - spacer, 13 - mounting portion;

[0030] 2 - heating element, 21 - heating hole, 22 - mixing chamber, 23 - protruding portion, 24 - resistive heating layer, 241 - first electrode layer, 242 - second electrode layer, 243 - first lead, 244 - second lead, 25 - avoidance structure;

[0031] 3 - atomizing matrix;

[0032] 4 - upper mounting seat, 41 - insertion cavity;

[0033] 5 - outer tube;

[0034] 6 - lower mounting seat;

[0035] 7 - atomizing housing;

[0036] 8 - circuit board;

[0037] 9 - battery. Detailed implementation manners

[0038] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are denoted by related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid overwhelming the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0039] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment and do not mean that they are necessary sequences, unless it is stated otherwise that a certain sequence must be followed.

[0040] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0041] In one embodiment, a heating assembly is provided. This heating assembly is mainly installed in an atomization device for heating non-combustion to heat the atomization matrix. This heating assembly includes at least two heating elements. Increasing the number of heating elements can improve the heating efficiency. A mixing chamber is also provided between the heating elements for mixing and heat exchange of the heated air to improve the uniformity of air heating. And the heating layer of the heating element can be arranged in the mixing chamber to enable the air to directly contact the heating layer, further improving the heating efficiency. Finally, it can heat the air to a sufficient temperature to enter the atomization matrix, ensuring the rapid atomization of the atomization matrix and improving the smoking taste.

[0042] Please refer to Figures 1 to 4 In this embodiment, the heating assembly mainly includes an atomization tube 1 and a heating element 2.

[0043] The atomizing tube 1 has an atomizing chamber 11 for inserting an atomizing matrix 3, and both ends of the atomizing chamber 11 have openings. The atomizing tube 1 has a first end and a second end that are opposite to each other in the axial direction of the atomizing tube 1. The first end of the atomizing tube 1 is used to insert the atomizing matrix 3, and the second end of the atomizing tube 1 is used to introduce air into the atomizing matrix 3. Among them, the atomizing matrix 3 mainly includes a tobacco section, a heat insulation section, and a suction section that are axially connected in sequence. The tobacco section is used to provide a matrix for heating and atomizing to form smoke, the suction section is for the user to inhale the heated smoke, and the heat insulation section is used to block the heat conduction of the tobacco section to the suction section to avoid scalding the user.

[0044] The heating element 2 is arranged at the second end of the atomizing tube 1. The heating element 2 is provided with a heating hole 21 penetrating through the heating element 2. The heating holes 21 are distributed along the axial direction of the atomizing chamber 11, and the heating holes 21 communicate with the atomizing chamber 11. The heating element 2 can be distributed to form a honeycomb-like plurality of heating holes 21 to increase the air intake and improve the heating efficiency. During inhalation, the air entering the atomizing matrix 3 first passes through the heating holes 21 of the heating element 2. The heating element 2 can heat the air passing through the heating holes 21. After being heated, the air becomes a hot air flow and then enters the atomizing matrix 3, and can heat and bake the tobacco section in the atomizing matrix 3 to realize the heating and atomization of the atomizing matrix 3.

[0045] The heating assembly of this embodiment includes at least two heating elements 2. At least two heating elements 2 are sequentially distributed along the axial direction of the atomizing chamber 11, and at least two heating elements 2 form a series structure. This embodiment will be described by taking the heating assembly including two heating elements 2 as an example.

[0046] The two heating elements 2 can be installed in the atomizing tube 1, and the two heating elements 2 can be fixedly connected to the atomizing tube 1 by means of clamping, interference fit, screw connection, etc. The heating element 2 is in a columnar structure, and the outer diameter of the heating element 2 is equal to or approximately equal to the inner diameter of the atomizing tube 1. The heating element 2 blocks the second end of the atomizing tube 1, so that the external air flow passes through the heating holes 21 of the two heating elements 2 in sequence and enters the atomizing chamber 11 to enter the atomizing matrix 3.

[0047] The atomizing tube 1 can be a heat-conducting tube with heat-conducting properties. For example, the atomizing tube 1 can be a copper tube. The two heating elements 2 are arranged inside the second end of the atomizing tube 1. The heating element 2 can also transfer heat energy to the atomizing tube 1, so that the atomizing tube 1 can also perform auxiliary heating on the circumferential side surface of the atomizing matrix 3, realizing combined heating of axial air heating and circumferential side surface heating, which can make full use of the heat energy generated by the heating element 2 and improve the heating efficiency of the atomizing matrix 3.

[0048] In other embodiments, one or both of the two heating elements 2 may also be disposed outside the atomization tube 1. The second end of the atomization tube 1 is provided with a mounting structure, and the heating element 2 located outside the atomization tube 1 can be fixedly mounted through this mounting structure. Setting part or all of the heating elements 2 outside the atomization tube 1 can also achieve heating of the internal air of the atomization matrix 3; the atomization tube 1 can also be provided with other heating structures to achieve circumferential heating. For example, a resistance layer is printed on the outer circumferential surface of the atomization tube 1, which can achieve resistance heating of the atomization tube 1.

[0049] In this embodiment, there is a mixing cavity 22 between two adjacent heating elements 2. The heating holes 21 of the heating element 2 communicate with the mixing cavity 22. The heating holes 21 of the heating element 2 relatively far from the atomization tube 1 first heat the air, and the heated air enters the mixing cavity 22 for mixing heat exchange. At the same time, the two heating elements 2 heat the mixed air in the mixing cavity 22, and the mixed and heated air then enters the heating holes 21 of the heating element 2 relatively close to the atomization tube 1 for re-heating. The hot air heated by the two heating elements 2 enters the atomization matrix 3 in the atomization cavity 11.

[0050] The heating element 2 has a first end and a second end opposite to each other in the axial direction of the atomization tube 1. The end face of the first end of the heating element 2 is provided with a convex portion 23. The convex portion 23 can be an annular boss, and the annular boss is located at the edge position of the end face of the first end of the heating element 2. The end face of the second end of the heating element 2 is a flat surface. When the two heating elements 2 are connected side by side in the axial direction, the convex portion 23 at the first end of the heating element 2 relatively far from the atomization tube 1 is butted against the flat end face of the second end of the heating element 2 relatively close to the atomization tube 1. The convex portion 23 spaces the two adjacent heating elements 2 to form the mixing cavity 22, and the axial height of the convex portion 23 determines the space height of the mixing cavity 22. Among them, the annular convexity is located at the edge position of the end face of the heating element 2, which can expand the space of the mixing cavity 22 as much as possible, so that all the heating holes 21 can communicate with the mixing cavity 22, which helps to improve the air mixing heat exchange efficiency and uniformity.

[0051] The convex portion 23 at the first end of the heating element 2 can also be connected to the atomization matrix 3, so that a second mixing cavity 22 can be formed between the first end of the heating element 2 and the atomization matrix 3, so that the hot air can be mixed and heat exchanged again before entering the atomization matrix 3, further improving the effect of mixing heat exchange, and thus improving the uniformity of heating inside the atomization matrix 3.

[0052] In other embodiments, the convex portion 23 may also include a plurality of convex terminals. For example, the convex portion 23 includes three convex terminals evenly distributed on a circumference. The setting of the plurality of convex terminals can also space the two adjacent heating elements 2 to form the mixing cavity 22.

[0053] Please refer to Figure 5, in other embodiments, the first end and the second end of the heating element 2 are both provided with protruding portions 23. The protruding portion 23 relatively far from the first end of the heating element 2 away from the atomizing tube 1 is docked with the protruding portion 23 relatively close to the second end of the heating element 2 near the atomizing tube 1. The protruding portions 23 of the two heating elements 2 jointly space the adjacent two heating elements 2 to form a mixing cavity 22, and the axial height of the two protruding portions 23 determines the spatial height of the mixing cavity 22. With this structure, the mixing cavity 22 can also be formed between the two heating elements 2.

[0054] In this embodiment, the main body portion of the heating element 2 is an insulating and heat-conducting structure. For example, the heating element 2 is made of ceramic material. The end face of the second end of the heating element 2 is provided with a resistive heating layer 24. The resistive heating layer 24 can be fixed on the end face of the second end of the heating element 2 by printing or other means. The resistive heating layer 24 is provided with a plurality of avoidance holes corresponding one-to-one to the heating holes 21, so that air can pass through the resistive heating layer 24 and enter the heating holes 21.

[0055] One or more of the inner walls of the plurality of heating holes 21 of the heating element 2 are provided with a first electrode layer 241, and the circumferential side wall of the heating element 2 is provided with a second electrode layer 242. The first electrode layer 241 and the second electrode layer 242 are respectively electrically connected to the resistive heating layer 24.

[0056] The first electrode layer 241 and the second electrode layer 242 are the positive and negative connection parts of the resistive heating layer 24. The resistive heating layer 24 can convert electrical energy into heat energy. The heat energy generated by the energization of the resistive heating layer 24 is transferred to the main body of the heating element 2 and then to the inner wall of the heating hole 21 to realize the heating of the air passing through the heating hole 21.

[0057] The first electrode layer 241 can be welded with a first lead 243, and the second electrode layer 242 can be welded with a second lead 244. The resistive heating layer 24 is connected to the circuit board through the first lead 243 and the second lead 244. The two heating elements 2 can respectively have independent first leads 243 and second leads 244, or the two heating elements 2 can share the first lead 243 and the second lead 244 to form a parallel or series heating structure.

[0058] In other embodiments, the heating element 2 is provided with electrode holes extending in the same direction as the heating holes 21, and the inner walls of the electrode holes are provided with a first electrode layer 241, which can also realize the electrical connection of the resistive heating layer 24.

[0059] In this embodiment, the heating element 2 can also be provided with an axial avoidance structure 25. The avoidance structure 25 can be an avoidance groove located on the circumferential side surface of the heating element 2, or the avoidance structure 25 can be an avoidance hole located inside the heating element 2. The avoidance structure 25 is used to avoid the wiring of the first electrode layer 241 and / or the second electrode layer 242.

[0060] In other embodiments, the resistive heating layer 24 can also be disposed at the first end of the heating body 2, that is, the resistive heating layer 24 and the convex portion 23 are located at the same end; alternatively, resistive heating layers 24 are provided at both the first end and the second end of the heating body 2; in both cases, heating of the air in the heating holes 21 can be achieved.

[0061] In other embodiments, a resistive heating structure can also be provided on the outer lateral surface of the heating body 2 or inside the heating body 2, and heating of the air in the heating holes 21 can also be achieved.

[0062] In other embodiments, the heating body 2 is made of a metal material, and an electromagnetic coil is disposed on the circumferential outer side of the heating body 2. After passing through the electromagnetic coil, the metal heating body 2 is electromagnetically heated through the electromagnetic induction effect, and heating of the air in the heating holes 21 can also be achieved.

[0063] In the heating assembly of this embodiment, since the heating assembly includes two heating bodies 2, increasing the number of heating bodies 2 can improve the heating efficiency; moreover, there is a spaced mixing cavity 22 between two adjacent heating bodies 2, such that the air heated by the first heating body 2 will first be mixed and heat-exchanged in the mixing cavity 22 to equalize the temperature, and then enter the second heating body 2 for heating, achieving more sufficient heating, thereby improving the uniformity and heating efficiency of air heating. The air heated to a sufficient temperature enters the atomization matrix to ensure the smoking taste.

[0064] In one embodiment, the heating assembly can further include a greater number of heating bodies 2. For example, the heating assembly includes 4 heating bodies 2, and the 4 heating bodies 2 are sequentially connected along the axial direction of the atomization cavity 11, and 3 mixing cavities 22 are formed between the 4 heating bodies 2. Setting a greater number of heating bodies 2 can combine a greater number of mixing cavities 22, which can further improve the uniformity of heated air, and at the same time increasing the number of heating bodies 2 can further improve the heating efficiency.

[0065] In one embodiment, the two axial end faces of the heating body 2 can be flat surfaces. The inner side wall of the second end of the atomization tube 1 is provided with a spacing portion 12. The spacing portion 12 can be an annular boss protruding from the inner side wall of the heating body 1. The end face of the first end of one heating body 2 abuts against one axial face of the spacing portion 12, and the end face of the second end of the other heating body 2 abuts against the other axial face of the spacing portion 12, that is, the spacing portion 12 is located between the two heating bodies 2, and the spacing portion 12 can also space the two heating bodies 2 apart to form the mixing cavity 22.

[0066] The spacing portion 12 of the atomization tube 1 can also play a role in limiting and fixing, axially limiting and fixing the heating body 2 within the atomization tube 1.

[0067] In one embodiment, the heating holes 21 of adjacent heating elements 2 are arranged in an axial offset along the axis of the atomizing tube 1, that is, the central axes of the heating holes 21 of two adjacent heating elements 2 are not collinear. This makes it difficult for the pre-heated air from the heating holes 21 of the heating element 2 relatively far from the atomizing tube 1 to directly enter the heating holes 21 of the heating element 2 relatively close to the atomizing tube 1 along the axial line. Instead, it is more likely to enter the mixing chamber 22 first for mixing and heat exchange. Such an arrangement can further improve the effect of mixing and heat exchange.

[0068] Please refer to Figure 6 , in one embodiment, the heating assembly further includes an upper mounting seat 4. The upper mounting seat 4 is of a sleeve structure and has a socket cavity 41 inside. The inner diameter of the socket cavity 41 is equal to the inner diameter of the atomizing cavity 11. One end of the upper mounting seat 4 is used to insert the atomizing matrix 3, and the other end of the upper mounting seat 4 is docked with the first end of the atomizing tube 1. The socket cavity 41 is docked with the atomizing cavity 11. The socket cavity 41 and the atomizing cavity 11 are used to jointly insert the atomizing matrix 3. The socket cavity 41 only serves for insertion, and the atomizing cavity 11 is mainly used for heating and atomizing.

[0069] When the atomizing matrix 3 is inserted into the heating assembly, the end of the tobacco section of the atomizing matrix 3 is inserted into the atomizing cavity 11, the middle part of the atomizing matrix 3 is located in the socket cavity 41, and the end of the suction section of the atomizing matrix 3 protrudes from the socket cavity 41.

[0070] Regarding a part of the upper mounting seat 4 as a component for inserting the atomizing matrix 3 can shorten the length of the atomizing tube 1, which is beneficial to reducing the material cost.

[0071] Please refer to Figure 9 , in one embodiment, the heating assembly may further include an outer tube 5 and a lower mounting seat 6. The inner diameter of the outer tube 5 is larger than the outer diameter of the atomizing tube 1. The outer tube 5 is located on the circumferential outer side of the atomizing tube 1. One end of the outer tube 5 is fixedly connected to the upper mounting seat 4, and the other end of the outer tube 5 is fixedly connected to the lower mounting seat 6. The heat insulation cavity formed between the outer tube 5 and the atomizing tube 1 can prevent the heat of the atomizing tube 1 from overflowing and being lost, thereby improving the heating efficiency.

[0072] Among them, the outer tube 5 can be integrally formed with one or both of the upper mounting seat 4 and the lower mounting seat 6, or can be connected by a labyrinth snap connection to form a sealed heat insulation cavity.

[0073] In one embodiment, the atomizing tube 1 can be installed in a suspended manner. A radially protruding mounting portion 13 is provided on the outer circumferential surface of the first end of the atomizing tube 1. The mounting portion 13 can be a protruding structure such as an annular boss. The mounting portion 13 is clamped between the upper mounting seat 4 and the outer tube 5, and the upper mounting seat 4 and the outer tube 5 axially clamp and fix the atomizing tube 1. The second end of the atomizing tube 1 is a suspended free end. The second end of the atomizing tube 1 is axially aligned with and spaced from the lower mounting seat 6, and the lower mounting seat 6 is provided with an air inlet hole. With such a setting, an interval space is formed between the atomizing tube 1 and the lower mounting seat 6, and this interval space communicates with the interval space between the outer tube 5 and the atomizing tube 1, so that the heat overflowing from the atomizing tube 1 will flow back into the air entering the heating hole 21, which can improve the recovery of thermal energy and thus improve the heating efficiency.

[0074] In other embodiments, the first end of the atomizing tube 1 can also be fixedly installed on the upper mounting seat 4 or the outer tube 5 alone, or the atomizing tube 1 can be installed in a hanging manner.

[0075] Please refer to Figure 8 and Figure 9 , in one embodiment, an atomizing device is provided. This atomizing device mainly includes an atomizing shell 7, a circuit board 8, a battery 9, and the heating assembly in any of the above embodiments. The circuit board 8, the battery 9, and the heating assembly in any of the above embodiments are installed in the atomizing shell 7.

[0076] An opening is provided on the end face of the atomizing shell 7. The opening of the atomizing shell 7 is aligned and communicated with the insertion cavity 41 of the upper mounting seat 4, and the user can insert the atomizing matrix 3 into the atomizing cavity 11 through the opening of the atomizing shell 7.

[0077] The circuit board 8 is electrically connected to the battery 9 and the resistance heating layers 24 of all the heating elements 2 respectively. The battery 9 is used to supply electrical energy to the circuit board 8 and the resistance heating layers 24 of the heating elements 2, and the circuit board 8 is used to control the individual or combined heating of the plurality of heating elements 2.

[0078] In the atomizing device of this embodiment, since the heating assembly includes at least two heating elements 2, increasing the number of heating elements 2 can improve the heating efficiency; and there is an interval mixing cavity 22 between two adjacent heating elements 2, so that the air heated by the first heating element 2 will first perform mixing heat exchange in the mixing cavity to make the temperature uniform, and then enter the second heating element 2 for heating, realizing more sufficient heating, thereby improving the uniformity and heating efficiency of air heating, and allowing the air heated to a sufficient temperature to enter the atomizing matrix to ensure the smoking taste.

[0079] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, according to the idea of the present invention, several simple deductions, deformations or replacements can also be made.

Claims

1. A heating component, characterized in that: include: An atomizing tube, wherein the atomizing tube has an atomizing cavity for inserting an atomizing matrix; as well as At least two heating bodies, which are sequentially arranged at one end of the atomizing tube along the axial direction of the atomizing chamber, and a mixing chamber is provided between two adjacent heating bodies; The heating body has a plurality of heating holes which are arranged along the axial direction of the atomizing tube and penetrate the heating body. The heating holes are communicated with the mixing chamber. The heating holes are used to introduce air into the atomizing chamber and heat the air passing through the heating holes.

2. The heating assembly according to claim 1, characterized in that One end or both ends of the heating body are provided with a protrusion, and the adjacent heating bodies are connected through the protrusion, and the protrusion separates two adjacent heating bodies to form the mixing chamber.

3. The heating assembly according to claim 1, characterized in that The heating holes of adjacent heating bodies are staggered along the axial direction of the atomizing tube.

4. The heating assembly according to claim 1, characterized in that The heating body is at least partially located in the atomizing tube, and the atomizing tube is a heat-conducting tube. The heating body is also used to transfer heat energy to the atomizing tube, and the atomizing tube is used to circumferentially heat the inserted atomizing substrate.

5. The heating assembly according to claim 1, characterized in that The inner wall of the atomizing tube is provided with a raised partition, the partition is located between two adjacent heating bodies, and the partition partitions the two adjacent heating bodies to form the mixing chamber.

6. The heating assembly according to claim 1, characterized in that The heating body is provided with a resistance heating layer at one end or both ends along the axial direction of the atomizing tube, and the resistance heating layer is used to convert electrical energy into thermal energy.

7. The heating assembly according to claim 6, characterized in that A first electrode layer is disposed on a hole wall of one of the heating holes of the heating body, or an electrode hole is disposed on the heating body in the same direction as the heating hole, and a first electrode layer is disposed on a hole wall of the electrode hole; and A second electrode layer is disposed on the circumferential wall surface of the heating body, and both the first electrode layer and the second electrode layer are electrically connected to the resistance heating layer.

8. The heating assembly according to any one of claims 1 to 7, characterized in that It also includes an upper mounting seat, an outer tube and a lower mounting seat, the upper mounting seat has a plug-in cavity, the upper mounting seat is axially docked with the atomizing tube, the plug-in cavity is communicated with the atomizing cavity, the atomizing cavity is used to accommodate the end of the atomizing matrix, and the plug-in cavity is used to accommodate the middle part of the atomizing matrix; the outer tube is arranged at intervals on the circumferential outside of the atomizing tube, one end of the outer tube is connected to the upper mounting seat, and the other end is connected to the lower mounting seat.

9. The heating assembly according to claim 8, characterized in that One end of the atomizing tube is fixedly connected to the outer tube and / or the upper mounting seat, and the other end of the atomizing tube is spaced apart from the lower mounting seat.

10. An atomizing device, characterized in that: It comprises an atomizing shell, a circuit board, a battery and a heating assembly as described in any one of claims 1 to 9, wherein the circuit board, the battery and the heating assembly are arranged in the atomizing shell, and the circuit board is electrically connected to the battery and the heating body respectively.

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