Heating non-combustion device

Abstract

The utility model relates to the technical field of aerosol generation. The utility model provides a heating non-combustion device. The heating non-combustion device comprises a shell, a support assembly, a heating pipe and a sealing assembly. A first mounting cavity and a second mounting cavity are formed in the shell; the bracket assembly is arranged in the first mounting cavity; the heating pipe is arranged in the support assembly, the heating pipe is provided with a containing cavity, and the containing cavity is used for containing an aerosol matrix structure; an air inlet channel is formed in the support assembly and communicates with the containing cavity and the outer portion of the shell. The sealing assembly is assembled outside the support assembly, the second installation cavity is used for installing an electronic element, the sealing assembly is used for sealing a gap, communicated with the second installation cavity, in the support assembly, a closed cavity is formed between the sealing assembly and the support assembly, and the closed cavity is communicated with the containing cavity and the air inlet channel. According to the heating non-combustion device, the problem of liquid leakage of the support assembly after the sealing structure of the support assembly loses efficacy can be solved, and the service life of heating non-combustion is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to a heat-without-combustion device. Background Art

[0002] When using a Heat Not Burning (HNB) device, the user inserts a solid aerosol matrix structure into the heating tube inside the HNB device. The heating tube inside the HNB device heats and bakes the outer periphery of the aerosol matrix structure, thereby generating an aerosol for the user to inhale.

[0003] However, when the HNB device is used for a long time, the sealing ring of the bracket assembly used to fix the heating tube will cycle between high temperature and normal temperature environments for a long time. The operating temperature of the heating tube can reach 300 degrees Celsius, while the temperature at the location of the sealing ring can usually reach 200 degrees Celsius. This working environment will cause the sealing ring to age, and then cause the sealing performance to fail, causing the bracket assembly to leak. Liquid leaking out of the bracket assembly will corrode components such as circuit boards, reducing the service life of the HNB device. Utility Model Content

[0004] The present application provides a heating without burning device, which can solve the problem of liquid leakage in the bracket assembly for installing the heating pipe.

[0005] In order to solve the above technical problems, the present application provides a heat-not-burn device, comprising a housing, a bracket assembly, a heating tube, and a sealing assembly. The housing is provided with a first mounting cavity and a second mounting cavity; the bracket assembly is provided in the first mounting cavity; the heating tube is provided inside the bracket assembly, and the heating tube has a receiving cavity for receiving an aerosol matrix structure, and one end of the receiving cavity has an opening for allowing the aerosol matrix structure to be inserted into and withdrawn from the receiving cavity; the heating tube is used to conduct heat to the aerosol matrix structure so that the aerosol matrix structure forms an aerosol; the bracket assembly is provided with an air inlet channel inside, and the air inlet channel is connected to the receiving cavity and the outside of the housing; the sealing assembly is assembled on the outside of the bracket assembly, the second mounting cavity is used to install electronic components, and the sealing assembly is used to seal the gap on the bracket assembly that is connected to the second mounting cavity, and a closed cavity is formed between the sealing assembly and the bracket assembly, and the closed cavity is connected to the receiving cavity and the air inlet channel.

[0006] In one embodiment, the sealing assembly includes a first sealing member, which is assembled at an end of the bracket assembly away from the opening. The closed cavity includes a first closed cavity, and the first sealing member cooperates with the end of the bracket assembly away from the opening to form the first closed cavity; the air intake channel extends from a side close to the opening to a side away from the opening, and the first closed cavity is connected to the end of the accommodating cavity away from the opening and the side of the air intake channel away from the opening.

[0007] In one embodiment, the first sealing member includes a first sealing portion and a first assembly portion that are connected to each other, the first sealing portion being connected to a side of the first assembly portion close to the opening, the first sealing portion surrounding the side wall of the bracket assembly and being sealed to the side wall of the bracket assembly; the first assembly portion abuts against an end of the bracket assembly away from the opening; the first assembly portion has a groove on a side facing the accommodating cavity, the groove is connected to the air inlet channel, and the groove cooperates with an end of the bracket assembly away from the opening to form a first closed cavity.

[0008] In one embodiment, the heat-not-burn device also includes an airflow sensor, part of the groove wall of the groove is an elastic structure, a second assembly part is provided on the side of the first assembly part away from the first sealing part, the second assembly part cooperates with the elastic structure to form an assembly cavity, and the airflow sensor is installed in the assembly cavity. The elastic structure is used to deform when the user inhales to change the volume of the assembly cavity.

[0009] In one embodiment, the heating without burning device also includes wiring and a sealing body. A through groove is also provided on the cavity wall of the first closed cavity. One end of the wiring is electrically connected to the heating tube, and the other end of the wiring passes through the through groove; the sealing body wraps the wiring in the through groove, and the sealing body fills the through groove to seal the through groove.

[0010] In one embodiment, the sealing assembly includes a second sealing member, which is assembled at one end of the bracket assembly near the opening, and the closed cavity includes a second closed cavity, and the second sealing member cooperates with the end of the bracket assembly near the opening to form a second closed cavity; the air inlet channel extends from a side near the opening to a side away from the opening, and the second closed cavity is connected to the end of the accommodating cavity near the opening, the side of the air inlet channel near the opening, and the outside of the shell.

[0011] In one embodiment, the second sealing member includes a second sealing portion and a third assembly portion that are connected to each other, the second sealing portion is connected to a side of the third assembly portion close to the opening, the second sealing portion surrounds the side wall of the bracket assembly and is sealed with the side wall of the bracket assembly; the third assembly portion abuts against an end of the bracket assembly close to the opening; the third assembly portion is provided with a socket connected to the opening, and the socket is used to allow the aerosol matrix structure to pass through the second sealing member; the third assembly portion is provided with an air guide groove on the side facing the accommodating cavity, the air guide groove is connected to the air inlet channel and the socket, and the air guide groove cooperates with an end of the bracket assembly close to the opening to form a second closed cavity.

[0012] In one embodiment, the sealing assembly has an interference structure, and the interference structure is interference-fitted with the bracket assembly; alternatively, the heating without burning device further includes a sealing ring, which is disposed between the sealing assembly and the bracket assembly to seal the sealing assembly and the bracket.

[0013] In one embodiment, the bracket assembly includes an inner tube and a base, the inner tube has a accommodating cavity, at least part of the base and the heating tube are arranged in the accommodating cavity; the base is sealed and connected to the end of the inner tube away from the opening; the end of the heating tube close to the opening abuts the inner tube, and the end of the heating tube away from the opening abuts the base, and a through hole connecting the closed cavity and the accommodating cavity is provided on the base.

[0014] In one embodiment, the heating without burning device also includes a mounting bracket, and the bracket assembly also includes an outer tube, which is sleeved on the outer periphery of the inner tube and connected to the inner tube, and an air intake channel is formed between the outer tube and the inner tube. A second mounting cavity is provided in the mounting bracket, and the mounting bracket supports the sealing assembly and the bracket assembly; a first clamping portion is provided on the outer periphery of the outer tube, and the mounting bracket has a second clamping portion, and the first clamping portion is clamped with the second clamping portion.

[0015] The heat-not-burn device of the present application comprises a sealing assembly mounted on the exterior of a support assembly. Since the sealing assembly seals a gap on the support assembly that communicates with a second mounting cavity, which is a cavity for mounting electronic components, liquid leaking from the support assembly is isolated within the sealing assembly and does not leak into the electronic components, thereby preventing leakage from the support assembly after the sealing ring of the support assembly fails, thereby extending the service life of the heat-not-burn device. The sealing assembly forms a sealed cavity between the support assembly and the support assembly, which communicates with both the receiving cavity and the air inlet passage, so that liquid flowing out of the receiving cavity and the air inlet passage is collected in the sealed cavity and does not flow out of the support assembly, thereby preventing leakage from the support assembly. Furthermore, a heating tube is disposed within the support assembly, and the sealing assembly is assembled on the exterior of the support structure, with the support assembly between the sealing assembly and the heating tube. The support assembly can reduce the conduction of heat from the heating tube to the sealing assembly, so that when the heating tube is operating, the sealing assembly maintains a lower temperature than the sealing ring within the existing support assembly. Therefore, the aging rate of the sealing assembly is significantly reduced, thereby reducing the risk of sealing assembly failure and extending the service life of the heat-not-burn device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a heat-without-combustion device provided in one embodiment of the present application;

[0017] Figure 2 for Figure 1 sectional view of

[0018] Figure 3 A schematic structural diagram of a heat-without-combustion device provided in another embodiment of the present application;

[0019] Figure 4 for Figure 3 sectional view of

[0020] Figure 5 for Figure 1Schematic diagram of the explosion structure;

[0021] Figure 6 for Figure 1 Schematic diagram of the exploded structure of some parts;

[0022] Figure 7 for Figure 4 Schematic diagram of the structure without the bracket assembly, heating tube and sealing assembly;

[0023] Figure 8 A cross-sectional view of the bracket assembly, heating tube, sealing assembly, mounting bracket, and electronic components;

[0024] Figure 9 A schematic diagram of the structure of the outer tube, inner tube and base provided in one embodiment of the present application;

[0025] Figure 10 for Figure 8 A schematic diagram of the air flow path;

[0026] Figure 11 A schematic diagram of the structure of the bracket assembly, sealing assembly and wiring;

[0027] Figure 12 A schematic structural diagram of a first sealing member provided in one embodiment of the present application;

[0028] Figure 13 A cross-sectional view of a heat-without-combustion device provided in another embodiment of the present application;

[0029] Figure 14 A cross-sectional structure of a first sealing member provided in another embodiment of the present application;

[0030] Figure 15 for Figure 12 A structural diagram from another perspective;

[0031] Figure 16 A schematic structural diagram of a second sealing member provided in one embodiment of the present application;

[0032] Figure 17 for Figure 16 A structural diagram from another perspective.

[0033] Description of the drawings: aerosol matrix structure 10, shell 20, first mounting cavity 21, bracket assembly 30, air inlet channel 31, inner tube 32, accommodating cavity 321, base 33, outer tube 34, first clamping portion 341, heating tube 40, accommodating cavity 41, opening 411, sealing assembly 50, sealed cavity 51, first sealed cavity 511, second sealed cavity 512, first sealing member 52, first sealing portion 521, first assembly portion 522, groove 5221, second assembly portion 523, assembly cavity 524, through groove 525, second sealing member 53, second sealing portion 531, third assembly portion 532, jack 5321, air guide groove 5322, mounting bracket 60, second mounting cavity 61, second clamping portion 62, electronic component 70, wiring 80, nozzle bracket 90, opening 91, clamping member 100. DETAILED DESCRIPTION

[0034] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may 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. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0035] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0036] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0037] The terms "parallel" and "perpendicular" are defined in terms of the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and being approximately parallel or approximately perpendicular is acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0° and 10°. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°. The directional terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "side", etc., are only directions with reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, 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 therefore cannot be understood as limitations on the embodiments of the present application.

[0038] Please refer to Figure 1-4 The present application provides a heat-not-burn device, which is used to heat an aerosol matrix structure 10 so that the aerosol matrix structure 10 generates an aerosol. The aerosol matrix structure 10 can be used as a consumable for the heat-not-burn device. In one embodiment, the aerosol matrix structure 10 may include a matrix segment, a cooling segment and a filter segment. The matrix segment is used to accommodate a grass-like matrix, the cooling segment is used to cool the aerosol generated by the matrix segment, and the filter segment can filter the aerosol. The user can inhale the aerosol generated by the matrix segment by sucking on the filter segment. Of course, in other embodiments, the aerosol matrix structure 10 may also be other structures, not limited to the above-mentioned structures, and the present application does not limit this. In the present application, the heat-not-burn device may include the aerosol matrix structure 10, or may not include the aerosol matrix structure 10.

[0039] Please refer to Figure 1-7 The heat-not-burn device includes a housing 20, a bracket assembly 30, a heating tube 40 and a sealing assembly 50. Figure 7 As shown, the housing 20 is provided with a first installation cavity 21 and a second installation cavity 61, wherein the first installation cavity 21 and the second installation cavity 61 can be formed by the housing 20, or can be formed by parts provided inside the housing 20, for example, Figure 7 In the embodiment of the present invention, the heat-not-burn device further includes a mounting bracket 60, which can divide the space in the housing 20 into a first mounting cavity 21 and a second mounting cavity 61, wherein the first mounting cavity 21 is formed on one side of the mounting bracket 60, and the second mounting cavity 61 is formed on the other side of the mounting bracket 60. Figure 4 and Figure 7As shown, the bracket assembly 30 is disposed in the first installation cavity 21, and the heat-not-burn device further includes an electronic component 70, which is disposed in the second installation cavity 61. The electronic component 70 may be a power supply, a circuit board, or other device.

[0040] Please refer to Figure 8 , the heating tube 40 is arranged inside the bracket assembly 30. The heating tube 40 has a accommodating cavity 41, and the accommodating cavity 41 is used to accommodate the aerosol matrix structure 10. One end of the accommodating cavity 41 has an opening 411, and the opening 411 is used for the aerosol matrix structure 10 to be inserted into and exited from the accommodating cavity 41. The heating tube 40 is used to contact the aerosol matrix structure 10 through heat conduction, so that the aerosol matrix structure 10 forms an aerosol. Among them, the heating tube 40 may include a tube body and a heating circuit arranged on the tube body, and the heating circuit can generate heat after being energized, thereby increasing the temperature of the tube body, so that the aerosol matrix structure 10 inside the tube body is heated. In other embodiments, the heating tube 40 can also be heated by electromagnetic induction. The heating tube 40 can be made of magnetic induction material to generate heat in response to the electromagnetic field.

[0041] like Figure 9 and Figure 10 As shown, an air inlet channel 31 is provided inside the bracket assembly 30. The air inlet channel 31 communicates with both the accommodating cavity 41 and the exterior of the housing 20. This allows airflow from outside the housing 20 to enter the housing 20 when a user inhales the aerosol matrix structure 10, flow through the air inlet channel 31, and ultimately enter the aerosol matrix structure 10 within the accommodating cavity 41. Preferably, the air inlet channel 31 extends from a side of the bracket assembly 30 near the opening 411 to a side of the bracket assembly 30 far from the opening 411, with the air inlet end of the air inlet channel 31 near the opening 411 and the air outlet end of the air inlet channel 31 far from the opening 411. Thus, the heat-not-burn device has a top-intake structure.

[0042] In some existing technologies, the heating without combustion device may involve a bottom air intake structure. Since the bottom air intake needs to extend to the bottom of the heating without combustion device, a longer air intake pipe must be set up to lead to the accommodating cavity. Condensation is likely to occur in the air intake pipe. Under the action of its own gravity, the condensate may flow out of the heating without combustion device along the air intake pipe or flow to the electronic components 70 inside the heating without combustion device, which may easily cause leakage problems. The bracket assembly 30 for top air intake does not need to be designed with a longer air intake pipe. The air intake channel 31 inside the bracket assembly 30 where the heating tube 40 is installed can be used for air intake without designing an air intake pipe. Therefore, there is more space inside the heating without combustion device to assemble the electronic components 70, and the top air intake design facilitates the sealing assembly 50 described later to seal the bottom of the bracket assembly 30.

[0043] like Figure 8 and Figure 11 As shown, the sealing assembly 50 is assembled on the outside of the bracket assembly 30. The sealing assembly 50 is used to seal the gap between the bracket assembly 30 and the second installation cavity 61 to prevent the liquid generated in the bracket assembly 30 from flowing out of the bracket assembly 30 through the gap and flowing onto the electronic component 70 in the second installation cavity 61. A closed cavity 51 is formed between the sealing assembly 50 and the bracket assembly 30. The closed cavity 51 is connected to the accommodating cavity 41 and the air inlet channel 31. Figure 10 As shown, the air flow can pass through the air inlet channel 31 and the sealed cavity 51 and finally flow into the accommodating cavity 41 .

[0044] The sealing assembly 50 can be sealed to the bracket assembly 30 to seal the gap on the bracket assembly 30 that is connected to the second mounting cavity 61, and the sealing connection between the two can form a closed cavity 51. In one embodiment, as Figure 8 and Figure 12 As shown, the sealing component 50 is made of an elastic material and has an interference structure. The interference structure is interference-fitted with the bracket component 30 so that the sealing component 50 and the bracket component 30 are sealed. The interference structure can be, for example, an annular protrusion. In another embodiment, as shown in FIG. Figure 13 and Figure 14 As shown, the heat-not-burn device further includes a sealing ring, which is disposed between the sealing assembly 50 and the bracket assembly 30 so that the sealing assembly 50 is sealedly connected to the bracket. An annular groove may be provided on the sealing assembly 50 for assembling the sealing ring. In this embodiment, the sealing assembly 50 may be made of a hard material.

[0045] The heat-not-burn device of the present application is provided by installing a sealing assembly 50 on the outside of the bracket assembly 30. Since the sealing assembly 50 can seal the gap on the bracket assembly 30 that is connected to the second mounting cavity 61, and the second mounting cavity 61 is a cavity for mounting the electronic component 70, the liquid leaked from the bracket assembly 30 can be isolated in the sealing assembly 50 and will not leak to the electronic component 70, thereby preventing the bracket assembly 30 from leaking after the sealing element (such as a sealing ring) in the bracket assembly 30 fails, thereby improving the service life of the heat-not-burn device. The sealing assembly 50 can form a closed cavity 51 between the bracket assembly 30, and the closed cavity 51 is connected to the accommodating cavity 41 and the air inlet channel 31, so that the liquid flowing out of the accommodating cavity 41 and the air inlet channel 31 can be collected in the closed cavity 51 without flowing out of the bracket assembly 30, thereby preventing the bracket assembly 30 from leaking. The heating tube 40 is arranged inside the bracket assembly 30, and the sealing assembly 50 is assembled on the outside of the bracket tissue. There is a bracket assembly 30 between the sealing assembly 50 and the heating tube 40. The bracket assembly 30 can reduce the conduction of heat from the heating tube 40 to the sealing assembly 50, so that when the heating tube 40 is working, the temperature of the sealing assembly 50 is lower than that of the sealing ring in the existing bracket assembly 30. Therefore, the aging speed of the sealing assembly 50 is greatly reduced, thereby reducing the risk of failure of the sealing assembly 50 and improving the service life of the heating without combustion device.

[0046] like Figure 8 and Figure 12 As shown, in one embodiment, the sealing assembly 50 includes a first sealing member 52, which is assembled at the end of the bracket assembly 30 away from the opening 411, that is, the first sealing member 52 is assembled at the bottom of the bracket assembly 30. The closed cavity 51 includes a first closed cavity 511, and the first sealing member 52 cooperates with the end of the bracket assembly 30 away from the opening 411 to form the first closed cavity 511, that is, the first sealing member 52 cooperates with the bottom of the bracket assembly 30 to form the first closed cavity 511. The air intake channel 31 extends from a side close to the opening 411 to a side away from the opening 411, and the first closed cavity 511 is communicated with the end of the accommodating cavity 41 away from the opening 411 and the side of the air intake channel 31 away from the opening 411, that is, the first closed cavity 511 is communicated with the bottom of the air intake channel 31 and the bottom of the accommodating cavity 41, thereby, as shown in FIG. Figure 10As shown, the airflow in the air inlet channel 31 can flow into the first sealed chamber 511, and from the first sealed chamber 511 into the aerosol matrix structure 10 in the accommodating chamber 41. By providing the first sealing member 52, on the one hand, the first sealed chamber 511 formed by the first sealing member 52 and the bracket assembly 30 can connect the air inlet channel 31 and the accommodating chamber 41. On the other hand, liquid flowing out of the air inlet channel 31, the accommodating chamber 41, and the bottom gap of the bracket assembly 30 can be collected in the first sealed chamber 511 and will not flow into the second mounting chamber 61, thereby preventing corrosion of the electronic components 70. The first sealing member 52 ensures the sealing of the bottom of the bracket assembly 30.

[0047] like Figure 8 and Figure 12 As shown, in one embodiment, the first sealing member 52 includes a first sealing portion 521 and a first assembly portion 522 connected to each other. The first sealing portion 521 is connected to the side of the first assembly portion 522 close to the opening 411. The first sealing portion 521 is an annular structure. The first sealing portion 521 surrounds the side wall of the bracket assembly 30 and is sealed to the side wall of the bracket assembly 30. The sealing connection between the first sealing portion 521 and the side wall of the bracket assembly 30 includes but is not limited to the following two methods: Figure 8 and Figure 12 As shown, the first sealing member 52 is made of elastic material, and an interference structure is provided on the first sealing portion 521, and the interference structure is sealed by interference fit with the bracket assembly 30; Figure 13 and Figure 14 As shown, the first sealing member 52 is made of a hard material, and an annular groove is provided on the first sealing portion 521 for installing a sealing ring, which is interference-fitted with the bracket assembly 30 for sealing.

[0048] like Figure 8 and Figure 12 As shown, specifically, the first assembly portion 522 abuts against the end of the bracket assembly 30 away from the opening 411, that is, the bottom of the bracket assembly 30 is installed on the first assembly portion 522, and the first assembly portion 522 has a groove 5221 on the side facing the accommodating cavity 41, the groove 5221 is connected to the air intake channel 31, and the groove 5221 cooperates with the end of the bracket assembly 30 away from the opening 411 to form a first closed cavity 511.

[0049] In one embodiment, if Figure 12 and Figure 15As shown, the heat-not-burn device also includes an airflow sensor (not shown). Part of the groove wall of the groove 5221 is an elastic structure. The elastic structure can be thinner than the other groove walls of the groove 5221, allowing the elastic structure to elastically deform relative to the other groove walls of the groove 5221. A second assembly portion 523 is provided on the side of the first assembly portion 522 away from the first sealing portion 521. The second assembly portion 523 cooperates with the elastic structure to form an assembly cavity 524. The airflow sensor is mounted within the assembly cavity 524. Because the groove 5221 in the first sealing member 52 is connected to the air inlet passage 31, the elastic structure can deform when a user draws in, thereby changing the volume of the assembly cavity 524. This change in volume of the assembly cavity 524 also changes the pressure within the assembly cavity 524. The airflow sensor can sense this pressure change in the assembly cavity 524 and operate accordingly. The assembly cavity 524 is separated from the groove 5221, thereby preventing liquid collected in the groove 5221 from leaking onto the airflow sensor.

[0050] In one embodiment, if Figure 11 and Figure 15 As shown, the heat-not-burn device further includes a wiring 80 and a sealing body (not shown). A through-slot 525 is also provided on the wall of the first enclosed chamber 511. One end of the wiring 80 is electrically connected to the heating tube 40, and the other end of the wiring 80 extends through the through-slot 525 and can be connected to the circuit board. The sealing body wraps around the wiring 80 within the through-slot 525 and fills the through-slot 525 to seal it. The sealing body can be, for example, a sealant. By having the sealing body seal the through-slot 525, the liquid within the first enclosed chamber 511 can be prevented from flowing out of the through-slot 525.

[0051] In one embodiment, if Figure 8 、 Figure 16 and Figure 17 As shown, the sealing assembly 50 includes a second sealing member 53, and the second sealing member 53 is assembled at one end of the bracket assembly 30 close to the opening 411, that is, the second sealing member 53 is assembled at the top of the bracket assembly 30. The closed cavity 51 includes a second closed cavity 512, and the second sealing member 53 cooperates with one end of the bracket assembly 30 close to the opening 411 to form the second closed cavity 512, that is, the second closed cavity 512 cooperates with the top of the bracket assembly 30 to form the second closed cavity 512. The air inlet channel 31 extends from a side close to the opening 411 to a side away from the opening 411, and the second closed cavity 512 is communicated with one end of the accommodating cavity 41 close to the opening 411, a side of the air inlet channel 31 close to the opening 411, and the outside of the housing 20, that is, the second closed cavity 512 is communicated with the top of the accommodating cavity 41, the top of the air inlet channel 31, and the outside of the housing 20. Thus, as shown Figure 10As shown, gas outside the housing 20 can enter the second sealing member 53 and flow into the air inlet channel 31 from the second sealed cavity 512 of the second sealing member 53. The provision of the second sealing member 53 can prevent liquid flowing out of the top gap of the bracket assembly 30 from flowing into the electronic component 70. The liquid flowing out of the top gap of the bracket assembly 30 can be concentrated in the second sealed cavity 512. Since the second sealed cavity 512 is connected to the top of the accommodating cavity 41, the liquid in the second sealed cavity 512 can flow from the top of the accommodating cavity 41 into the accommodating cavity 41 and be heated by the heating tube 40 to form an aerosol. This can enable the liquid overflowing from the bracket assembly 30 to be utilized, thereby preventing the waste of the matrix in the aerosol matrix structure 10.

[0052] In one embodiment, if Figure 16 and Figure 17 As shown, the second sealing member 53 includes a second sealing portion 531 and a third assembly portion 532, which are connected to each other. The second sealing portion 531 is connected to the side of the third assembly portion 532 near the opening 411. The second sealing portion 531 is an annular structure that surrounds the side wall of the bracket assembly 30 and is sealed therewith. The sealing connection between the second sealing portion 531 and the side wall of the bracket assembly 30 may be achieved in two ways, but is not limited to: the second sealing member 53 is made of an elastic material, and an interference fit structure is provided on the second sealing portion 531, which forms an interference fit seal with the bracket assembly 30; or the second sealing member 53 is made of a hard material, and an annular groove is provided on the second sealing portion 531, which is used to install a sealing ring, which forms an interference fit seal with the bracket assembly 30.

[0053] Specifically, the third assembly portion 532 abuts against the end of the bracket assembly 30 near the opening 411, that is, the top of the bracket assembly 30 abuts against the third assembly portion 532. The third assembly portion 532 is provided with a socket 5321 that communicates with the opening 411. The socket 5321 is used to allow the aerosol matrix structure 10 to pass through the second sealing member 53. The third assembly portion 532 is provided with an air guide groove 5322 on the side facing the accommodating chamber 41. The air guide groove 5322 communicates with the air inlet channel 31 and the socket 5321, allowing air to flow from the socket 5321 into the air guide groove 5322 and then into the socket 5321. The air guide groove 5322 cooperates with the end of the bracket assembly 30 near the opening 411 to form the second sealed chamber 512.

[0054] like Figure 5 、 6As shown in Figures 8 and 9 , in one embodiment, the bracket assembly 30 includes an inner tube 32 and a base 33. The inner tube 32 defines a housing chamber 321. At least a portion of the base 33 and the heating tube 40 are disposed within the housing chamber 321. The base 33 is sealed to the end of the inner tube 32 away from the opening 411, for example, by a sealing ring. The end of the heating tube 40 near the opening 411 abuts the inner tube 32, while the end of the heating tube 40 away from the opening 411 abuts the base 33, thereby mounting the heating tube 40 within the bracket assembly 30. The base 33 is provided with a through hole connecting the first sealed chamber 511 and the housing chamber 41.

[0055] Furthermore, the support assembly 30 further includes an outer tube 34, which is sleeved on the outer periphery of the inner tube 32 and connected to the inner tube 32. Figure 9 As shown, an air intake passage 31 is formed between the outer tube 34 and the inner tube 32. Specifically, the first sealing portion 521 of the first sealing member 52 and the second sealing portion 531 of the second sealing member 53 both surround the outer circumference of the outer tube 34 and are sealed to the side wall of the outer tube 34. The mounting bracket 60 supports the sealing assembly 50 and the bracket assembly 30. In one embodiment, a first clamping portion 341 is provided on the outer circumference of the outer tube 34, and the mounting bracket 60 has a second clamping portion 62, and the first clamping portion 341 is clamped to the second clamping portion 62. Of course, in other embodiments, the bracket assembly 30 is not limited to the above structure and may also have other modified structures.

[0056] In one embodiment, if Figure 5 As shown, the heat-not-burn device further includes a nozzle holder 90 having an opening 91 thereon. The nozzle holder 90 is mounted on the housing 20. The nozzle holder 90 can be detachably connected to the housing 20, for example, it can be snap-fitted to the housing 20. The opening 91 of the nozzle holder 90, the insertion hole 5321 of the second sealing member 53, and the opening 411 of the accommodating chamber 41 can be arranged in sequence relative to each other, that is, the three are arranged in sequence along a straight line, so that the aerosol matrix structure 10 can be inserted into the accommodating chamber 41 through the opening 91, the insertion hole 5321, and the opening 411 in sequence. Furthermore, a clamping member 100 can be disposed in the opening 91. The inner diameter of the clamping member 100 can be slightly smaller than the outer diameter of the aerosol matrix structure 10, so that the clamping member 100 can clamp the aerosol matrix structure 10.

[0057] To minimize the amount of heat transferred from the heating tube 40 to the sealing assembly 50 and prevent failure of the sealing assembly 50, the bracket assembly 30 may be made of a material with low thermal conductivity. For example, the inner tube 32 and the base 33 may be made of polyetheretherketone (PEEK), and the outer tube 34 may be made of at least one of PEEK, polyetherketoneketone (PAEK), polyphenylene sulfone resins (PPSU), nylon, polytetrafluoroethylene (PTFE), polyvinylidene difluoride (PVDF), polysulfone (PSU), liquid crystal polymer (LCP), fluororubber (FKM), polyimide (PI), and thermoplastic polyimide (TPI). Experimental measurements show that the operating temperature of the heating tube 40 inside the bracket assembly 30 can reach 300 degrees Celsius, and the temperature of the sealing ring inside the bracket assembly 30 can reach 200 degrees Celsius. However, since the bracket assembly 30 is made of a material with low thermal conductivity, the temperature at the sealing assembly 50 is only about 100 degrees Celsius. This can greatly reduce the aging speed of the sealing assembly 50, thereby preventing leakage.

[0058] The above examples are used to illustrate 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 art of the present invention, some simple deductions, modifications or substitutions can be made based on the ideas of the present invention.

Claims

1. A heat-not-burn device, characterized in that: include: a housing, wherein a first mounting cavity and a second mounting cavity are provided in the housing; a bracket assembly, the bracket assembly being disposed in the first mounting cavity; A heating tube is disposed within the bracket assembly, the heating tube having a housing cavity for accommodating an aerosol matrix structure, one end of the housing cavity having an opening for allowing the aerosol matrix structure to be inserted into and removed from the housing cavity; the heating tube is configured to conduct heat to the aerosol matrix structure so that the aerosol matrix structure forms an aerosol; an air inlet passage is provided within the bracket assembly, the air inlet passage being in communication with the housing cavity and the exterior of the housing; And a sealing component, which is assembled on the outside of the bracket assembly, the second mounting cavity is used to install electronic components, the sealing component is used to seal the gap on the bracket assembly that is connected to the second mounting cavity, and a closed cavity is formed between the sealing component and the bracket assembly, and the closed cavity is connected to the accommodating cavity and the air inlet channel.

2. The heat-not-burn device according to claim 1, characterized in that: The sealing assembly includes a first sealing member, which is assembled on the end of the bracket assembly away from the opening. The closed cavity includes a first closed cavity, and the first sealing member cooperates with the end of the bracket assembly away from the opening to form the first closed cavity; the air intake channel extends from a side close to the opening to a side away from the opening, and the first closed cavity is connected to the end of the accommodating cavity away from the opening and the side of the air intake channel away from the opening.

3. The heat-not-burn device according to claim 2, characterized in that: The first sealing member includes a first sealing portion and a first assembly portion that are connected to each other, the first sealing portion being connected to a side of the first assembly portion close to the opening, the first sealing portion surrounding the side wall of the bracket assembly and being sealed to the side wall of the bracket assembly; the first assembly portion abuts against an end of the bracket assembly away from the opening; the first assembly portion has a groove on a side facing the accommodating cavity, the groove is connected to the air inlet channel, and the groove cooperates with an end of the bracket assembly away from the opening to form the first closed cavity.

4. The heat-not-burn device according to claim 3, characterized in that: It also includes an airflow sensor, part of the groove wall of the groove is an elastic structure, a second assembly part is provided on the side of the first assembly part away from the first sealing part, the second assembly part cooperates with the elastic structure to form an assembly cavity, the airflow sensor is installed in the assembly cavity, and the elastic structure is used to deform when the user inhales to change the volume of the assembly cavity.

5. The heat-not-burn device according to claim 2, characterized in that: It also includes wiring and a sealing body. A through groove is also opened on the cavity wall of the first closed cavity. One end of the wiring is electrically connected to the heating tube, and the other end of the wiring passes through the through groove; the sealing body wraps the wiring in the through groove, and the sealing body fills the through groove to seal the through groove.

6. The heat-not-burn device according to any one of claims 1 to 5, characterized in that: The sealing assembly includes a second sealing member, which is assembled at one end of the bracket assembly close to the opening. The closed cavity includes a second closed cavity, and the second sealing member cooperates with the end of the bracket assembly close to the opening to form the second closed cavity; the air inlet channel extends from a side close to the opening to a side away from the opening, and the second closed cavity is connected to an end of the accommodating cavity close to the opening, a side of the air inlet channel close to the opening, and the outside of the shell.

7. The heat-not-burn device according to claim 6, characterized in that: The second sealing member includes a second sealing portion and a third assembly portion that are connected to each other, the second sealing portion being connected to a side of the third assembly portion close to the opening, the second sealing portion surrounding the side wall of the bracket assembly and being sealed and connected to the side wall of the bracket assembly; the third assembly portion abuts against an end of the bracket assembly close to the opening; the third assembly portion is provided with a socket connected to the opening, and the socket is used for allowing the aerosol matrix structure to pass through the second sealing member; the third assembly portion is provided with an air guide groove on a side facing the accommodating cavity, the air guide groove is connected to the air inlet channel and the socket, and the air guide groove cooperates with an end of the bracket assembly close to the opening to form the second closed cavity.

8. The heat-not-burn device according to claim 1, characterized in that: The sealing assembly has an interference structure, and the interference structure is interference-fitted with the bracket assembly; alternatively, the heat-without-combustion device further includes a sealing ring, and the sealing ring is arranged between the sealing assembly and the bracket assembly to seal the sealing assembly and the bracket.

9. The heat-not-burn device according to claim 1, characterized in that: The bracket assembly includes an inner tube and a base, the inner tube has a accommodating cavity, at least part of the base and the heating tube are arranged in the accommodating cavity; the base is sealed and connected to the end of the inner tube away from the opening; the end of the heating tube close to the opening abuts the inner tube, and the end of the heating tube away from the opening abuts the base, and a through hole connecting the closed cavity and the accommodating cavity is provided on the base.

10. The heat-not-burn device according to claim 9, characterized in that: It also includes a mounting bracket, and the bracket assembly also includes an outer tube, which is sleeved on the outer circumference of the inner tube and connected to the inner tube, and the air intake channel is formed between the outer tube and the inner tube. The second mounting cavity is provided in the mounting bracket, and the mounting bracket supports the sealing assembly and the bracket assembly; the outer circumference of the outer tube is provided with a first clamping portion, and the mounting bracket has a second clamping portion, and the first clamping portion is clamped with the second clamping portion.

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