Heating device and atomizing equipment

Abstract

The utility model relates to the technical field of atomization equipment, and provides a heating device and atomization equipment. The heating device comprises: a support member, the support member is internally provided with a mounting cavity, the mounting cavity is provided with an insertion end and a closed end which are oppositely arranged, and the insertion end is provided with an insertion port; the heating assembly is arranged in the mounting cavity, and a heating cavity capable of containing an aerosol generating rod is formed in the heating assembly; one end of the heating assembly abuts against the insertion end, the insertion opening communicates with the heating cavity and the external atmosphere, and the other end of the heating assembly is provided with a vent hole communicating with the heating cavity and the installation cavity. An air inlet is formed in the face, abutting against the heating assembly, of the insertion end, and the air inlet is communicated with the installation cavity. According to the technical scheme, external airflow can enter the mounting cavity through the air inlet after entering the insertion opening, part of heat emitted outwards by the heating assembly is recycled to heat the aerosol generating rod, energy consumption can be reduced, the heating efficiency can be improved, meanwhile, the temperature of the insertion end of the supporting piece can be reduced, and the service life can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization equipment, in particular to a heating device and atomization equipment. BACKGROUND

[0002] At present, in the common heating-not-burning atomization equipment, the aerosol generating stick is inserted into the heating cavity for heating, so that the atomization substrate stored in the aerosol generating stick is heated and atomized. However, due to the fact that the atomization substrate is usually concentrated in the area close to the bottom of the support for installing the heating assembly, and the heating area of the heating assembly is large and usually covers the area of the aerosol generating stick close to the top of the support (usually without storing atomization substrate), part of the heat is lost during the heating process, the heating efficiency is not high, and at the same time, the temperature of the top of the support is too high, which easily leads to the reduction of service life. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problems of large energy loss, low heating efficiency and high temperature of the top of the support during heating of the aerosol generating stick in the existing atomization equipment, the present application provides a heating device and atomization equipment.

[0004] In the embodiment of the first aspect of the present application, a heating device is provided, comprising: a support, the support having an installation cavity therein, the installation cavity having an insertion end and a closed end oppositely arranged in a first direction, and the insertion end having an insertion port penetrating in the first direction; and a heating assembly, the heating assembly being arranged in the installation cavity, and the heating assembly having a heating cavity therein capable of accommodating an aerosol generating stick and being used for heating the aerosol generating stick inserted into the heating cavity; in the first direction, one end of the heating assembly abuts against the insertion end, and the insertion port communicates the heating cavity with the external atmosphere, the other end of the heating assembly has an air passage, and the air passage communicates the heating cavity with the installation cavity; wherein the abutting surface of the insertion end and the heating assembly has an air inlet, and the air inlet communicates with the installation cavity.

[0005] In a further embodiment of the present application, the heating assembly comprises: a heating base, the heating base being connected with the support, and the heating base having an air passage formed therein; and a heating tube, the heating tube being arranged in the first direction, one end of the heating tube abutting against the heating base, and the heating tube and the heating base jointly forming the heating cavity, the other end of the heating tube abutting against the insertion end, the heating tube being heated in an energized state to heat the aerosol generating stick inserted into the heating cavity; wherein the end of the insertion end facing the heating tube has a plurality of first protruding structures, the plurality of first protruding structures being arranged in a circumferential direction at intervals and each abutting against the end surface of the heating tube, and any two adjacent first protruding structures forming an air inlet.

[0006] In a further embodiment of the present application, the insertion end further has a first mounting groove facing one end of the heat pipe, a side wall of the first mounting groove is located outside the first protruding structure, and a plurality of second protruding structures are arranged on an inner side wall of the first mounting groove; wherein one end of the heat pipe facing the insertion end extends into the first mounting groove and abuts against the plurality of first protruding structures, and an outer side wall of the heat pipe abuts against the plurality of second protruding structures, and in the circumferential direction of the first mounting groove, the air inlet corresponds to the gap between the adjacent two second protruding structures.

[0007] In a further embodiment of the present application, the second protruding structure is arranged correspondingly to the first protruding structure and is connected to the corresponding first protruding structure in the first direction; wherein in the circumferential direction of the first mounting groove, the size of the second protruding structure is not greater than the size of the corresponding first protruding structure.

[0008] In a further embodiment of the present application, in the direction along the first direction towards the closed end, the flow area of the air inlet gradually increases.

[0009] In a further embodiment of the present application, the diameter of the insertion opening is greater than the inner diameter of the heat pipe; and / or, in the first direction, the diameter of at least part of the insertion opening gradually increases from inside to outside.

[0010] In a further embodiment of the present application, the outer side wall of the heating base has a flange structure arranged in the circumferential direction, the flange structure abuts against the inner side wall of the support member and separates the mounting cavity into an air inlet section and an air guide section; the air guide section is located on the side of the flange structure facing the closed end, and the air inlet section is located on the side of the flange structure facing the insertion end; wherein the flange structure has an air guide channel communicating the air inlet section and the air guide section.

[0011] In a further embodiment of the present application, the heating device further comprises: a base sealing member arranged in the support member and located on the side of the heating base away from the heat pipe, the base sealing member is sealingly connected with the flange structure and the inner side wall of the support member, the base sealing member has a flexible membrane structure, the flexible membrane structure and the heating base together form the air guide section, and the flexible membrane structure deforms under the action of air pressure; and an air flow sensor arranged in the support member and located on the side of the flexible membrane structure away from the heating base, the air flow sensor is used to sense the change of air pressure generated when the flexible membrane structure deforms and generate a corresponding sensing signal, and the air flow sensor is used to be in communication connection with the power supply assembly.

[0012] In a further embodiment of the present application, the support member comprises a first support sub-section and a second support sub-section arranged in sequence in the first direction, the first support sub-section is detachably connected with the second support sub-section, an end of the first support sub-section away from the second support sub-section forms an insertion end, an end of the second support sub-section away from the first support sub-section forms a closed end, and the outer end surface of the closed end has a connecting structure for connecting and fixing with the support structure of the atomization device; and / or, the heating device further comprises a fixing sleeve connected to the insertion end of the support member and penetratingly arranged with the insertion port, and the inner side wall of the fixing sleeve has a contact structure for abutting against the side wall of the aerosol generating rod inserted into the heating cavity.

[0013] In an embodiment of the second aspect of the present application, an atomization device is provided, comprising: a housing, the housing having an assembly port at one end in a first direction; the heating device of any one of the embodiments of the first aspect, the heating device being arranged in the housing, and the insertion port of the heating device being arranged corresponding to the assembly port; and a power supply assembly, the power supply assembly being arranged in the housing and electrically connected with the heating assembly of the heating device.

[0014] The beneficial effects of the above technical solutions of the present application are:

[0015] The heating device in the present application, through the improvement and optimization of the structure, makes the external airflow enter the insertion port, then enters the mounting cavity through the air inlet, and recovers part of the heat in the process of flowing to the heating cavity for heating the aerosol generating rod, which is beneficial to reduce energy consumption, improve heating efficiency, and at the same time, reduces the temperature of the insertion end of the support member, which is beneficial to prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the heating device in an embodiment of the present application;

[0017] Figure 2 It is a perspective view of the heating device in an embodiment of the present application from another angle;

[0018] Figure 3 It is a semi-sectional view of the heating device in an embodiment of the present application;

[0019] Figure 4 It is a semi-sectional view of the heating device in an embodiment of the present application (state of loading the aerosol generating rod);

[0020] Figure 5 It is a semi-sectional view of the heating device in an embodiment of the present application (state of hiding the heating tube);

[0021] Figure 6 It is a bottom view of the first support sub-section in an embodiment of the present application;

[0022] Figure 7 Partial view of the internal structure of the support in one embodiment of the present application;

[0023] Figure 8 Exploded view of the heating device in another embodiment of the present application;

[0024] Figure 9 Exploded view of the heating device in another embodiment of the present application; Figure 8

[0025] Figure 10 Perspective view of the atomization device in one embodiment of the present application (in the state of being inserted into the aerosol generating stick);

[0026] Figure 11 Top view of the atomization device in one embodiment of the present application;

[0027] Figure 12 Semi-sectional view of the atomization device in one embodiment of the present application;

[0028] Figure 13 Partial view of the local area in the above-mentioned figure. Figure 12

[0029] In the above-mentioned figures, arrow F1 represents the first direction, and the dotted arrow represents the airflow direction.

[0030] Explanation of the reference signs:

[0031] 100 heating device, 1 support, 11 mounting cavity, 111 air inlet section, 112 air guide section, 12 insertion end, 121 insertion port, 122 air inlet, 123 first protruding structure, 124 first mounting groove, 125 second protruding structure, 13 closed end, 131 connecting structure, 141 first support sub-section, 142 second support sub-section, 2 heating assembly, 21 heating cavity, 22 heating base, 221 air hole, 222 flange structure, 223 air guide channel, 224 second mounting groove, 23 heating tube, 31 base sealing element, 311 flexible film structure, 312 first insertion slot, 313 second insertion slot, 32 airflow sensor, 33 sensor support, 34 fixing sleeve, 341 contact structure;

[0032] 400 atomization device, 410 housing, 411 assembly port, 412 support structure, 420 power supply assembly, 421 battery, 422 electronic control board; 500 aerosol generating stick. DETAILED DESCRIPTION

[0033] ​​The application will be described in further detail below with reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following description, numerous specific details are described to provide a thorough understanding of the application. However, those of skill in the art will recognize that the application can be practiced without these specific details. In other instances, well-known structures have not been described in detail to avoid unnecessarily obscuring the application. In addition, the description is intended to cover all alternatives, modifications and equivalents of the application.

[0034] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the steps of the operations involved in each embodiment can be sequentially adjusted or modified in a manner that can be easily understood by those skilled in the art. Therefore, the specification and drawings are only intended to clearly describe one embodiment, and do not mean that the composition and / or order is necessary.

[0035] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "coupling" in this application include direct and indirect connection (coupling) unless otherwise specified.

[0036] The aerosol generating stick is a special atomization product containing atomization substrate inside. When used, it is inserted into the matching heating non-combustion atomization equipment. The heating assembly is used to heat the aerosol generating stick, so that the atomization substrate inside the aerosol generating stick is atomized and generates aerosol. With the user's suction action on the aerosol generating stick, the aerosol moves to the suction end with the airflow.

[0037] The heating device provided in the application has a heating assembly with a heating cavity arranged in the support, the heating cavity can accommodate an aerosol generating rod and can heat in an energized state to heat the aerosol generating rod inserted into the heating cavity. By arranging the air inlet on the abutting surface of the insertion end of the mounting cavity and the heating assembly and the air hole on the closed end of the mounting cavity, the air inlet is in communication with the mounting cavity. When the user performs a suction action on the aerosol generating rod, external airflow can flow into the mounting cavity through the insertion port of the insertion end, then enter the mounting cavity through the air inlet, and then flow into the heating cavity through the air hole of the closed end and be sucked into the inside of the aerosol generating rod. Since the external air temperature is relatively low, part of the heat of the heating assembly can be absorbed during the process of passing through the insertion end and the mounting cavity, and then the absorbed heat is brought into the heating cavity, thereby relatively reducing the temperature of the region of the heating assembly close to the insertion end and forming energy recovery, reducing energy consumption in the heating process and improving heating efficiency. The first direction is the height direction of the atomization device, and the same applies to the following embodiments.

[0038] Some embodiments of the heating device and the atomization device provided in the application are described below in combination with the drawings.

[0039] In the embodiments of the first aspect of the application, a heating device 100 is provided, as shown in Figure 1 Figure 2 Figure 3 The heating device 100 includes a support 1 and a heating assembly 2. The support 1 has a mounting cavity 11, and the heating assembly 2 is arranged in the mounting cavity 11 to be assembled and fixed by the support 1 when applied to an atomization device. In the first direction, one end of the mounting cavity 11 of the support 1 is a closed end 13, and the other end is an insertion end 12, which has an insertion port 121 for the aerosol generating rod to pass through. The heating assembly 2 has a heating cavity 21 that can accommodate an aerosol generating rod. In the first direction, one end of the heating assembly 2 abuts the insertion end 12 of the support 1 to make the heating cavity 21 communicate with the external atmosphere through the insertion port 121 of the insertion end 12, so that the aerosol generating rod can pass through the insertion port 121 and be inserted into the heating cavity 21; the end of the heating assembly 2 away from the insertion end 12 has an air hole 221, and the air hole 221 makes the heating cavity 21 communicate with the mounting cavity 11, and the insertion end 12 of the support 1 and the abutting surface of the heating assembly 2 have an air inlet 122 that communicates with the mounting cavity 11.

[0040] ​​In use, the insertion end 12 of the aerosol generating stick 500 passes through the insertion opening 121 and is inserted into the heating cavity 21, when a user performs a suction action on the aerosol generating stick 500, external air flows into the mounting cavity 11 through the insertion opening 121 and the air inlet 122 in sequence, and flows to the end of the heating assembly 2 away from the insertion opening 121 in the first direction, and then passes through the air passage 221 into the heating cavity 21, and is sucked into the aerosol generating stick 500 by the end of the aerosol generating stick 500. At the same time, the heating assembly 2 heats the part of the aerosol generating stick 500 inserted into the heating cavity 21, so that the atomized substrate stored inside the aerosol generating stick 500 is heated and atomized, and moves to the other end of the aerosol generating stick 500 with the airflow.

[0041] Wherein, since the external air temperature is relatively low, part of the heat of the area of the heating assembly 2 close to the insertion end 12 can be absorbed when passing through the air inlet 122 and the mounting cavity 11 and brought into the heating cavity 21 for heating the aerosol generating stick 500, so that energy recovery can be achieved, and the temperature of the insertion end 12 can be reduced.

[0042] It can be understood that the common aerosol generating stick is in a cylindrical structure, and the atomized substrate is usually stored inside the aerosol generating stick close to the bottom end. In actual application, the area of the aerosol generating stick where the atomized substrate is stored needs to be heated, and the heat demand of the position above the area close to the insertion end of the support is not large. However, the covering area of the existing heating assembly is generally large, which causes energy loss due to heating close to the insertion end, and the insertion end is easily aged under the influence of high temperature, affecting the service life.

[0043] The heating device 100 in the embodiment improves and optimizes the structure, so that the external airflow enters the insertion opening 121, passes through the air inlet 122 into the mounting cavity 11, and recovers part of the heat for heating the aerosol generating stick during flowing to the heating cavity 21, which is beneficial to reduce energy consumption, improve heating efficiency, and reduce the temperature of the insertion end 12 of the support 1, thereby prolonging the service life.

[0044] It should be noted that the shape and size of the insertion opening 121 are matched with the aerosol generating stick 500, so that when the aerosol generating stick 500 passes through the insertion opening 121 and is inserted into the heating cavity 21, there is still a gap between the inner edge of the insertion opening 121 and the aerosol generating stick 500, so that external air flows in.

[0045] In further embodiments of the present application, as Figures 1 to 5In the example, the heating assembly 2 includes a heating base 22 and a heating element 23. The heating base 22 is connected to the support member 1, the heating element 23 is arranged along a first direction, and one end of the heating element 23 abuts against the heating base 22, and the other end abuts against the insertion end 12 of the support member 1, so that the heating element 23 is clamped and fixed by the heating base 22 and the support member 1. The heating tube 23 and the heating base 22 together form a heating cavity 21. The heating base 22 is provided with a vent hole 221 so that the heating cavity 21 and the mounting cavity 11 can be connected through the vent hole 221. The insertion end 12 of the support member 1 facing the heating tube 23 has a plurality of first protrusion structures 123. The plurality of first protrusion structures 123 are arranged at intervals along the circumference of the mounting cavity 11. In the first direction, each first protrusion structure 123 abuts against the end face of the heating tube 23. In the circumference, the space between any two adjacent first protrusion structures 123 forms an air inlet 122, that is, a plurality of air inlets 122 are arranged at intervals in the circumference. An air inlet 122 is formed by the first protruding structure 123 abutting against the end face of the heating tube 23. This allows external space to pass through the air inlet 122 and come into contact with the heating tube 23, the first protruding structure 123, and the insertion end 12, facilitating airflow absorption of heat in that area and reducing its temperature. The absorbed heat is then carried into the heating chamber 21. The circumferential size of the first protruding structure 123 can be customized according to actual usage requirements. Preferably, multiple first protruding structures 123 are evenly spaced circumferentially, allowing airflow to pass through multiple air inlets 122 and flow into the mounting chamber 11 more evenly. This enables the absorption of heat emitted by the heating component 2 in different circumferential areas, resulting in higher heat recovery efficiency.

[0046] In further embodiments of this application, such as Figures 3 to 6 In the example, the insertion end 12 of the support member 1 has a first mounting groove 124 at the end facing the heating tube 23. The first mounting groove 124 is located outside the first protrusion structure 123, and the inner wall of the first mounting groove 124 extends along a first direction. The end of the heating tube 23 facing the insertion end 12 extends into the first mounting groove 124. The inner wall of the first mounting groove 124 has a plurality of second protrusion structures 125, which are spaced apart circumferentially and abut against the outer wall of the heating tube 23 to limit the heating tube 23. In the circumferential direction of the first mounting groove 124, each air inlet 122 corresponds to the gap space between two adjacent second protrusion structures 125, so that the external airflow passes through the air inlet 122 and flows into the mounting cavity 11 through the gap space between the second protrusion structures 125. Since the airflow needs to change direction after passing through the air inlet 122, the second protrusion structure 125 is provided here so that the airflows flowing into different air inlets 122 remain independent of each other during the process of changing direction, preventing mutual interference and improving the stability of airflow movement.

[0047] Further, as shown in the examples of Figures 4 to 6 , the second protruding structures 125 are arranged corresponding to the first protruding structures 123, and in the first direction, the corresponding second protruding structures 125 and the first protruding structures 123 are connected to each other to form a continuous airflow channel, avoiding the gap between them, and also facilitating the molding process. Among them, in the circumferential direction of the first mounting groove 124, the size of the second protruding structure 125 is not greater than the size of the corresponding first protruding structure 123, so that when the airflow enters the gap space between the second protruding structures 125 from the air inlet 122, it will not be blocked, and the flow area will not be reduced, so as to ensure that the airflow can flow smoothly and stably to the mounting cavity 11. More preferably, as shown in the examples of Figure 8 , the size of the second protruding structure 125 in the circumferential direction is smaller than the size of the first protruding structure 123, so as to further increase the airflow channel and facilitate the reduction of airflow velocity and improve the stability of airflow movement.

[0048] Further, as shown in the examples of Figures 4 to 6 , the first mounting groove 124 is a circular groove structure matched with the heat pipe 23, and in the direction away from the insertion end 12 in the first direction, the flow area of the air inlet 122 gradually increases to further increase the air inlet flow. Among them, as shown in the examples of Figure 7 , the cross-sectional shape of the air inlet 122 can be set as a trapezoidal shape, and of course the interface shape of the air inlet 122 can also be set as an arc shape, so that the flow area of the air inlet 122 gradually increases during the process of the airflow flowing from the insertion end 12 to the flow channel of the mounting cavity 11.

[0049] Further, in a specific example, as shown in the examples of Figure 5 and Figure 6 , the diameter of the insertion port 121 is greater than the inner diameter of the heat pipe 23, so that when the aerosol passes through the insertion port 121 and is inserted into the heating cavity 21, the side wall of the aerosol generating stick 500 will not contact the inner side wall of the insertion port 121, so as to ensure that the air inlet channel will not be blocked, and the external airflow can flow through any position of the aerosol generating stick 500 in the circumferential direction, which is beneficial to make the air inlet airflow flow into the mounting cavity 11 more uniformly.

[0050] Further, in another specific example, as shown in the examples of Figure 7In the example, in the first direction, the diameter of at least a portion of the insertion port 121 gradually increases from the inside to the outside. That is, in the direction from the inside to the outside along the first direction, the diameter of a portion of the insertion port 121 gradually increases. This serves two purposes: firstly, it guides the aerosol generating rod 500 as it passes through the insertion port 121; secondly, it expands the opening area on the air inlet side when the aerosol generating rod 500 is inserted into the heating chamber 21, facilitating the inward flow of external airflow through the gap between the insertion port 121 and the aerosol generating rod 500. The region where the diameter of the insertion port 121 increases can be configured with a beveled cross-section, forming a chamfer-like structure, or it can be configured with an arc-shaped cross-section, forming a rounded corner structure.

[0051] In further embodiments of this application, such as Figure 1 In the example, the outer wall of the heating base 22 has a flange structure 222. The flange structure 222 extends circumferentially and abuts against the inner wall of the support member 1. The flange structure 222 divides the mounting cavity 11 into an air inlet section 111 and an air guide section 112. The air guide section 112 is located on the side of the flange structure 222 facing the closed end 13 and communicates with the heating cavity 21 through a vent hole 221. The air inlet section 111 is located on the side of the flange structure 222 facing the insertion end 12 and communicates with the air inlet 122. The flange structure 222 has an air guide channel 223, which connects the air inlet section 111 and the air guide section 112. Gas flowing into the air inlet section 111 from the air inlet 122 can enter the air guide section 112 through the air guide channel 223 and then enter the heating cavity 21 through the vent hole 221. By setting the flange structure 222 to abut against the support member 1, the heating base 22 and the heating tube 23 are fixed in the radial direction so that the heating tube 23 is accurately positioned, and airflow is supplied through the air guide channel 223.

[0052] It should be noted that in practical applications, the flange structure 222 can be a continuous structure extending circumferentially, such as... Figure 8 In the example shown, of course, multiple flange structures 222 can also be spaced apart in the circumferential direction to form an air guide channel 223 by utilizing the gap between adjacent flange structures 222.

[0053] Furthermore, such as Figure 7 , Figure 8 and Figure 9 As shown, the heating device 100 also includes a base seal 31 and an airflow sensor 32. The base seal 31 is disposed inside the support member 1 and is located on the side of the heating base 22 away from the heating tube 23; the base seal 31 is sealed to the flange structure 222 of the heating base 22 and the inner wall of the support member 1, and the base seal 31 has a flexible membrane structure 311, for example... Figure 9The flexible film structure 311 is combined with the heating base 22 to form the air guide section 112 at the position opposite to the closed end 13 on the base seal 31, and the flexible film structure 311 has a certain flexibility, and deforms under the action of air pressure when the air flow in the air guide section 112 changes due to air flow movement. For example, when the user performs a suction action on the aerosol generating stick 500, the air flow in the air guide section 112 is sucked into the heating cavity 21, so that a negative pressure is generated in the air guide section 112, the flexible film structure 311 deforms under the action of the negative pressure, and moves towards the heating base 22 to drive the other side of the flexible film structure 311 away from the heating base 22 to move.

[0054] Correspondingly, as shown in the example of Figure 9 , the air flow sensor 32 is arranged in the support 1 and located at the side of the flexible film structure 311 away from the heating base 22, for sensing the air flow movement. When the flexible film structure 311 deforms, the air flow movement is driven at the side of the flexible film structure 311 away from the heating base 22, and the air flow sensor 32 senses the air flow movement and generates a sensing signal. When applied to the atomization device, the air flow sensor 32 is used in communication connection with the power supply assembly 420 to transmit the sensing signal to the power supply assembly 420, and the power supply assembly 420 can control the power supply state of the heating assembly 2 according to the sensing signal.

[0055] In further embodiments of the present application, as shown in the example of Figure 8 , the support 1 is a split structure, including a first support sub-section 141 and a second support sub-section 142; the first support sub-section 141 and the second support sub-section 142 are arranged in sequence in the first direction and form a detachable connection; one end of the first support sub-section 141 away from the second support sub-section 142 forms the insertion end 12, and one end of the second support sub-section 142 away from the first support sub-section 141 forms the closed end 13. In the production and manufacturing process, the heating assembly 2 can be assembled in the mounting cavity 11 first, and then the first support sub-section 141 and the second support sub-section 142 are connected and assembled, which is convenient for disassembly. Among them, the outer end face of the closed end 13 on the second support sub-section 142 has a connecting structure 131, which can be connected and fixed with the support structure inside the atomization device when assembled in the atomization device, so as to realize the connection and assembly of the heating device 100 and the atomization device.

[0056] In further embodiments of the present application, as shown in the example of Figure 9In the example shown in FIG. 1, the heating device 100 further comprises a fixing sleeve 34, which is arranged at the insertion end 12 of the support 1 and connected with the support 1. The fixing sleeve 34 is a structure penetrating in the first direction and is arranged corresponding to the insertion opening 121 of the support 1. The inner side wall of the fixing sleeve 34 is provided with a contact structure 341. When the aerosol generating stick 500 penetrates into the fixing sleeve 34, the contact structure 341 can abut with the side wall of the aerosol generating stick 500 to fix the aerosol generating stick 500. The contact structures 341 can be arranged at intervals in the circumferential direction, and the adjacent contact structures 341 can allow the gas to flow through. Preferably, the contact structure 341 adopts a flexible structure, such as a silica gel structure, which can increase the friction force of the contact surface with the aerosol generating stick 500 and prevent the aerosol generating stick 500 from falling off accidentally during use. Further, the fixing sleeve 34 as a whole adopts a silica gel structure, which can abut with the housing of the atomization equipment through the end surface of the fixing sleeve 34 when assembling, so as to realize assembly and fixation.

[0057] In an embodiment of the second aspect of the present application, an atomization equipment 400 is provided, as shown in Figure 10 、 Figure 11 、 Figure 12 and Figure 13 The atomization equipment 400 comprises a housing 410, the heating device 100 in any of the embodiments of the first aspect described above, and a power supply assembly 420. The housing 410 has an assembly opening 411 at one end in the first direction, for example, the top end of the housing 410 shown in Figure 12 The heating device 100 and the power supply assembly 420 are arranged inside the housing 410. The insertion opening 121 of the heating device 100 is arranged corresponding to the assembly opening 411, so that the heating cavity 21 of the heating assembly 2 communicates with the assembly opening 411, and the aerosol generating stick 500 can be inserted into the heating cavity 21 of the heating assembly 2 through the assembly opening 411. The power supply assembly 420 is electrically connected with the heating assembly 2 of the heating device 100, so as to supply power to the heating assembly 2 and make the heating assembly heat, thereby heating the aerosol generating stick 500 inserted into the heating cavity 21.

[0058] In the example shown in FIG. 1, the heating device 100 further comprises a fixing sleeve 34, which is arranged at the insertion end 12 of the support 1 and connected with the support 1. The fixing sleeve 34 is a structure penetrating in the first direction and is arranged corresponding to the insertion opening 121 of the support 1. The inner side wall of the fixing sleeve 34 is provided with a contact structure 341. When the aerosol generating stick 500 penetrates into the fixing sleeve 34, the contact structure 341 can abut with the side wall of the aerosol generating stick 500 to fix the aerosol generating stick 500. The contact structures 341 can be arranged at intervals in the circumferential direction, and the adjacent contact structures 341 can allow the gas to flow through. Preferably, the contact structure 341 adopts a flexible structure, such as a silica gel structure, which can increase the friction force of the contact surface with the aerosol generating stick 500 and prevent the aerosol generating stick 500 from falling off accidentally during use. Further, the fixing sleeve 34 as a whole adopts a silica gel structure, which can abut with the housing of the atomization equipment through the end surface of the fixing sleeve 34 when assembling, so as to realize assembly and fixation. Figure 5 Figure 13 ​As an example in the foregoing description, the heating assembly 2 has a ventilation hole 221 at one end away from the insertion end 12 of the support 1, and the insertion end 12 of the support 1 has an air inlet 122 on the abutting surface of the heating assembly 2, which communicates with the mounting cavity 11. When the aerosol generating stick 500 is inserted into the heating cavity 21 through the assembly opening 411, external airflow can flow in through the gap between the assembly opening 411 and the aerosol generating stick 500, and enter the mounting cavity 11 (i.e. the cavity between the support 1 and the heating assembly 2) through the air inlet 122 on the support 1. The lower-temperature incoming airflow can dissipate heat from the insertion end 12 of the support 1, absorb part of the heat emitted by the heating assembly 2, and carry the absorbed heat into the heating cavity 21 for heating the aerosol generating stick 500, thereby achieving energy recovery and local cooling.

[0059] A specific example of the atomization device 400 will be described below with reference to the accompanying drawings.

[0060] As shown in Figure 1 and Figures 10 to 13 , the atomization device 400 is a heat-not-burn device, and the housing 410 is assembled from multiple sub-housings to facilitate assembly of the various components inside. The housing 410 has an assembly opening 411 at the top, and has a bracket structure 412 inside, which divides the internal space of the housing 410 into two different chambers. The heating device 100 is arranged in the chamber above the bracket structure 412, and the power supply assembly 420 is arranged in the chamber below the bracket structure 412.

[0061] As shown in Figure 1 , Figure 5 , Figure 11 and Figure 12 , Figure 13 , the heating device 100 includes a support 1, a heating assembly 2, a base seal 31, an airflow sensor 32, and a fixing sleeve 34. The support 1 is made of PEEK and includes a first support sub-section 141 and a second support sub-section 142 arranged in sequence along a first direction. The heating assembly 2 includes a heating base 22 and a heating tube 23.

[0062] Specifically, the support 1 is a hollow cylindrical structure, and has an installation cavity 11 inside, the first support sub-section 141 is located above the second support sub-section 142, the top end of the first support sub-section 141 is an insertion end 12 with a circular insertion opening 121, the bottom of the second support sub-section 142 is a closed end 13, and the outer end surface of the closed end 13 has a connecting structure 131, and the second support sub-section 142 is connected and fixed with the bracket structure 412 through the connecting structure 131. The fixing sleeve 34 is connected to the top of the first support sub-section 141, and is arranged through the insertion opening 121 and the assembly opening 411, and the fixing sleeve 34 is clamped and fixed with the shell 410 and the first support sub-section 141 respectively; the inner side wall of the fixing sleeve 34 is provided with a plurality of contact structures 341 of silica gel material at intervals in the circumferential direction.

[0063] The base seal 31 is arranged at the connection between the first support sub-section 141 and the second support sub-section 142; one end of the base seal 31 towards the first seal has a first insertion slot 312, and one end of the base seal 31 towards the second seal has a second insertion slot 313, the second insertion slot 313 is inserted into the second support sub-section 142 and is sealingly assembled with the inner side wall of the second support sub-section 142; one end of the first support sub-section 141 towards the second support sub-section 142 is inserted into the first insertion slot 312 and is sealingly assembled with the inner side wall of the first insertion slot 312; the second insertion slot 313 is further provided with a sensor holder 33 of silica gel material, the sensor holder 33 has an opening, and the airflow sensor is fixed in the sensor holder 33; the base seal 31 has a flexible film structure 311 at the position corresponding to the sensor.

[0064] The heating base 22 of the heating assembly 2 is located in the first support sub-section 141 close to the base seal 31, and is clamped and matched with the base seal 31; the heating base 22 is a hollow structure with a top through, and has a plurality of air holes 221 on the bottom wall, the top end of the heating base 22 has a second installation slot 224, the bottom end of the heating tube 23 is inserted into the second installation slot 224 of the heating base 22 and forms an abutment, and the internal space of the heating tube 23 and the internal space of the heating base 22 together form a heating cavity 21. The outer side wall of the heating base 22 has a circular flange structure 222, the flange structure 222 is sealingly matched with the inner side wall of the first support sub-section 141, and divides the installation cavity 11 into an air inlet cavity and a gas guiding cavity, the flange structure 222 is provided with a gas guiding channel 223 communicating the air inlet cavity and the gas guiding cavity, and the base seal 31 has an air passage structure corresponding to the gas guiding channel 223.

[0065] The inner end of the insertion end 12 has a first mounting groove 124, and the bottom wall of the first mounting groove 124 has a plurality of first protruding structures 123 arranged in a circumferential direction at intervals, and the inner side wall of the first mounting groove 124 has a plurality of second protruding structures 125 arranged in a circumferential direction at intervals. The top end of the heat pipe 23 is inserted into the first mounting groove 124 and abuts against the plurality of first protruding structures 123, and the outer side wall of the heat pipe 23 abuts against the plurality of second protruding structures 125. In the circumferential direction, the gap space between any two adjacent first protruding structures 123 forms an air inlet 122, and the second protruding structure 125 is arranged corresponding to the first protruding structure 123 and connected with the corresponding first protruding structure 123 in the first direction. Among them, in the circumferential direction, the size of the second protruding structure 125 is smaller than the size of the first protruding structure 123, and in the direction towards the closed end 13 in the first direction, the flow area of the air inlet 122 gradually increases; at the same time, the diameter of the insertion port 121 of the insertion end 12 is larger than the inner diameter of the heat pipe 23, and in the first direction, the diameter of the upper section area of the insertion port 121 gradually increases from inside to outside.

[0066] The power supply assembly 420 includes a battery 421 and an electric control board 422, the electric control board 422 has a control circuit thereon and is electrically connected with the battery 421 and the heat pipe 23 of the heating assembly 2, and at the same time, the electric control board 422 is in communication connection with the airflow sensor 32 to control the power-on state of the heat pipe 23.

[0067] When the aerosol generating stick 500 is inserted into the heating cavity 21 by the assembly opening 411, the contact structure 341 of the fixing sleeve 34 abuts against the outer sidewall of the aerosol generating stick 500 to position and fix the aerosol generating stick 500; when the user performs a suction action on the aerosol generating stick 500, a negative pressure is generated in the air guide cavity to make the flexible film structure 311 heat and deform, the flexible film structure 311 drives the airflow on one side of the airflow inductor 32 to move, so that the airflow inductor 32 generates an induction signal, and the electric control board 422 controls the battery 421 to supply power to the heating tube 23 according to the induction signal to heat the heating tube 23, so as to heat the aerosol generating stick 500, so that the atomized substrate in the aerosol generating stick 500 is heated and atomized to generate aerosol. Among them, the region of the aerosol generating stick 500 storing the atomized substrate is close to the bottom of the heating cavity 21, the external airflow passes through the assembly opening 411 and the insertion opening 121, enters the air inlet section 111 of the mounting cavity 11 through the plurality of air inlets 122 at the top of the heating tube 23, and flows to the air guide section 112 in the first direction, and then enters the heating cavity 21 through the air hole 221, and is sucked into the inside of the aerosol generating stick 500, and carries the formed aerosol to the suction end. By heat exchange with the lower-temperature air inlet airflow, the temperature of the insertion end 12 and part of the heating tube 23 at the top can be reduced to prolong the service life, and at the same time, the airflow carries the absorbed heat into the heating cavity 21 to heat the aerosol generating stick 500, realizes energy recycling, is conducive to reducing energy consumption and improving heating efficiency.

[0068] In addition, the atomization device 400 in the embodiment also has all the beneficial effects of the heating device 100 in any of the above embodiments, which will not be repeated here.

[0069] The above application of specific examples is used to help understand the application and does not limit the application. For those skilled in the art to which the application belongs, according to the idea of the application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A heating device, characterized in that, The heating device comprises: a support having a mounting cavity therein, the mounting cavity having an insertion end and a closed end oppositely arranged in a first direction, and the insertion end having an insertion opening extending through in the first direction; and a heating assembly arranged in the mounting cavity, and the heating assembly having a heating cavity therein for accommodating an aerosol generating rod, and being configured to heat the aerosol generating rod inserted into the heating cavity; in the first direction, one end of the heating assembly abuts against the insertion end, and the insertion opening communicates the heating cavity with an external atmosphere, the other end of the heating assembly has a ventilation hole, and the ventilation hole communicates the heating cavity with the mounting cavity; wherein the abutting surface of the insertion end and the heating assembly has an air inlet, and the air inlet communicates with the mounting cavity.

2. The heating device according to claim 1, wherein: the heating assembly comprises: a heating base connected with the support, and the heating base having the ventilation hole formed therein; and a heating tube arranged in the first direction, one end of the heating tube abutting against the heating base, and the heating tube and the heating base jointly forming the heating cavity, the other end of the heating tube abutting against the insertion end, and the heating tube being configured to heat in an energized state to heat the aerosol generating rod inserted into the heating cavity; wherein the insertion end towards one end of the heating tube has a plurality of first protruding structures, the plurality of first protruding structures being circumferentially spaced apart and each abutting against an end surface of the heating tube, and any two adjacent first protruding structures forming one air inlet.

3. The heating device according to claim 2, wherein: the insertion end towards one end of the heating tube further has a first mounting groove, a side wall of the first mounting groove being located outside the first protruding structure, and the first mounting groove having a plurality of second protruding structures on an inner side wall thereof; wherein one end of the heating tube towards the insertion end extends into the first mounting groove and abuts against the plurality of first protruding structures, and an outer side wall of the heating tube abuts against the plurality of second protruding structures, and in the circumferential direction of the first mounting groove, the air inlets correspond to gaps between adjacent two second protruding structures.

4. The heating device according to claim 3, wherein: the second protruding structure is arranged correspondingly to the first protruding structure and connected with the corresponding first protruding structure in the first direction; wherein in the circumferential direction of the first mounting groove, the size of the second protruding structure is not greater than the size of the corresponding first protruding structure.

5. The heating device according to claim 3, wherein: in a direction towards the closed end in the first direction, the flow area of the air inlet gradually increases.

6. The heating device according to claim 2, wherein: the diameter of the insertion opening is greater than the inner diameter of the heating tube; and / or in the first direction, the diameter of at least part of the insertion opening gradually increases from inside to outside.

7. The heating device according to claim 2, wherein the heating base has a flange structure circumferentially arranged on the outer sidewall thereof, the flange structure abuts against the inner sidewall of the support member and divides the mounting cavity into an air inlet section and an air guide section; the air guide section is located on the side of the flange structure facing the closed end, and the air inlet section is located on the side of the flange structure facing the insertion end; wherein the flange structure has an air guide channel communicating the air inlet section and the air guide section. Further comprising:

8. The heating device of claim 7, wherein, a base seal arranged in the support member and located on the side of the heating base away from the heat-generating tube, the base seal is sealingly connected with the flange structure and the inner sidewall of the support member, the base seal has a flexible membrane structure, the flexible membrane structure forms the air guide section together with the heating base, and the flexible membrane structure deforms under the action of air pressure; and an air flow sensor arranged in the support member and located on the side of the flexible membrane structure away from the heating base, the air flow sensor is used to sense the air pressure change generated when the flexible membrane structure deforms and generate a corresponding sensing signal, and the air flow sensor is used to be in communication connection with the power supply assembly.

9. The heating device according to claim 1, wherein the support member comprises a first support sub-section and a second support sub-section arranged in the first direction in sequence, the first support sub-section is detachably connected with the second support sub-section, the end of the first support sub-section away from the second support sub-section forms the insertion end, the end of the second support sub-section away from the first support sub-section forms the closed end, and the outer end face of the closed end has a connecting structure for connecting and fixing with the support structure of the atomization equipment; and / or, the heating device further comprises a fixing sleeve connected to the insertion end of the support member and penetratingly arranged with the insertion port, the inner sidewall of the fixing sleeve has a contact structure for abutting against the sidewall of the aerosol generating rod inserted into the heating cavity. comprising: a housing having an assembly opening at one end in the first direction; 10. An atomising device characterised in that, the heating device according to any one of claims 1 to 9 is arranged in the housing, and the insertion port of the heating device is correspondingly arranged with the assembly opening; and a power supply assembly arranged in the housing and electrically connected with the heating assembly of the heating device. ​ ​

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