Atomizing device and aerosol generating apparatus

Abstract

The application relates to an atomization device and an aerosol generating equipment, the aerosol generating equipment comprising a power supply assembly and the atomization device, the atomization device being electrically connected with the power supply assembly. The atomization device comprises a shell, an atomization assembly, an air inlet channel, an induction channel and a sensing element. The atomization assembly is arranged in the shell, and the atomization assembly is penetrated by an atomization cavity for generating aerosol. The atomization cavity has an air outlet end and an air inlet end along the height direction of the shell, and the air inlet end is lower than the air outlet end. The air inlet channel is in communication with the air inlet end to supply air to the atomization cavity. One end of the induction channel is in communication with the air inlet end, and the other end of the induction channel is provided with the sensing element. In the height direction of the shell, at least part of the induction channel is higher than the air inlet end. The sensing element is used to drive the atomization assembly to start working when detecting that the airflow of the air inlet end changes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic cigarettes, in particular to an atomization device and an aerosol generating apparatus. BACKGROUND

[0002] Cigarette smoke contains harmful substances such as tar, and long-term inhalation of these harmful substances can cause great harm to the human body. In order to overcome the harmful substances generated by cigarette combustion, low-hazard cigarette substitutes such as e-cigarette and heat-not-burn e-cigarette have appeared.

[0003] Traditional electronic cigarettes generally have an air passage for transmitting smoke, and a sensing element is arranged in the air passage. When a user inhales, part of the airflow of the air passage flows through the sensing element, and the sensing element senses the airflow flow to make the atomization part start working to generate smoke.

[0004] However, the sensing element of the traditional electronic cigarette has the problem of poor detection sensitivity. SUMMARY

[0005] Therefore, it is necessary to provide an atomization device and an aerosol generating apparatus to solve the above problems.

[0006] An atomization device comprises:

[0007] a housing;

[0008] an atomization assembly arranged in the housing, the atomization assembly being formed with an atomization cavity for generating aerosol, the atomization cavity having an air outlet end and an air inlet end in the height direction of the housing, the air inlet end being lower than the air outlet end;

[0009] an air inlet channel communicating with the air inlet end to supply air to the atomization cavity;

[0010] a sensing channel and a sensing element, one end of the sensing channel communicating with the air inlet end, and the other end of the sensing channel being provided with the sensing element; at least part of the sensing channel is higher than the air inlet end in the height direction of the housing; the sensing element is used to drive the atomization assembly to start working when detecting a change in the airflow of the air inlet end.

[0011] In the process, when the user inhales, the airflow flows near the air inlet end of the atomization chamber, that is, the airflow changes, that is, the negative pressure appears at one end of the sensing channel near the air inlet end, and the sensing element at the other end of the sensing channel can detect the airflow change to control the atomization device to start working. In the use process of the atomization device, condensate may be generated in the atomization chamber. It can be understood that when the atomization device is placed vertically along the height direction or is held by the user along the height direction, the condensate and other high-density substances in the atomization chamber are easy to flow to the air inlet end below under the action of gravity. In another possible use scenario, the user may blow air into the atomization chamber from the air outlet end during the inhalation process, and then the condensate and other substances in the atomization chamber are easy to flow to the air inlet end below. At least part of the sensing channel in the present application is higher than the air inlet end of the atomization chamber in the height direction of the shell, which means that the condensate and other substances flowing out of the air inlet end of the atomization chamber cannot directly flow through the sensing channel to touch the sensing element. In other words, the condensate and other substances cannot overcome the gravity to turn over the part of the sensing channel higher than the air inlet end of the atomization chamber, so the condensate and other substances cannot flow from one end of the sensing channel to the sensing element at the other end. The contact between the sensing element and the condensate and other substances can be avoided as much as possible. In this way, on the one hand, the sensing element can be prevented from being triggered by mistake, and on the other hand, the sensing element can be prevented from being corroded, thereby prolonging the service life of the sensing element and preventing the decrease or failure of the detection sensitivity of the sensing element.

[0012] In one of the embodiments, at least part of the sensing channel is higher than the end surface of the air inlet end in the height direction of the shell, and the end surface of the air inlet end is the interface between the atomization chamber and the sensing channel.

[0013] In one of the embodiments, the atomization device further comprises a support assembly arranged in the shell, the support assembly is located between the atomization assembly and the bottom of the shell, the support assembly is formed with the sensing channel and the air inlet channel, a straight hole is further arranged on the support assembly, the air inlet channel communicates with the atomization chamber through the straight hole, one end of the sensing channel communicates with the atomization chamber through the straight hole, and the other end of the sensing channel is provided with the sensing element. At least part of the sensing channel is higher than the end surface of the air inlet end in the height direction of the shell, and the end surface of the air inlet end is the interface between the straight hole and the sensing channel.

[0014] In one of the embodiments, part of the sensing channel is bent in the form of “∩” in the support assembly in the height direction of the shell, and the sensing channel located at the top point of the “∩” is higher than the end surface of the air inlet end. Such a structure means that the condensate cannot overcome the gravity to turn over the part of the sensing channel in the form of “∩” in the natural state, so it cannot flow to the sensing element.

[0015] In one of the embodiments, the bracket assembly comprises a bracket and a first cover body, the straight hole is formed in the first cover body, the bracket is provided with an air inlet hole in the thickness direction, the bracket has a first surface and a second surface arranged oppositely in the thickness direction, the first cover body is arranged on the first surface and covers the air inlet hole, and the first cover body, the first surface and the air inlet hole jointly form the air inlet channel.

[0016] In one of the embodiments, the bracket assembly further comprises a second cover body, the bracket is further provided with an air passing hole in the thickness direction, the sensing channel comprises a first sensing channel and a second sensing channel, the first cover body covers the air passing hole from the first surface, the first cover body, the first surface and the air passing hole jointly form the first sensing channel, the second cover body is arranged on the second surface and covers the air passing hole, the second cover body and the second surface jointly form the second sensing channel, one end of the second sensing channel communicates with the first sensing channel through the air passing hole, and the other end of the second sensing channel is provided with the sensing element.

[0017] In one of the embodiments, the first surface of the bracket protrudes to form a protruding rib around the edge of the air passing hole, and in the height direction of the shell, the protruding rib extends into the first sensing channel so that the first sensing channel is bent to form a "∩" shape and the sensing channel at the top point of the "∩" shape is higher than the end surface of the air inlet end. Such a structure means that the condensed liquid cannot overcome the gravity to turn over the part of the first sensing channel in the "∩" shape in a natural state, and thus cannot flow to the position of the sensing element.

[0018] In one of the embodiments, the second surface of the bracket forms a receiving groove, the groove wall of the receiving groove is provided with the air passing hole, the second cover body is embedded in the receiving groove and jointly forms the second sensing channel with the groove wall of the receiving groove, and the sensing element is embedded in the second cover body, the sensing element has a first detection surface and a second detection surface, the first detection surface communicates with the second sensing channel, and the second detection surface communicates with the outside. The first detection surface of the sensing element communicates with the atomization cavity through the sensing channel, when a user inhales, a negative pressure appears at the first detection surface of the sensing element, that is, a pressure difference appears between the first detection surface and the second detection surface, and the sensing element can control the atomization device to start working after detecting the change in air pressure.

[0019] In one of the embodiments, the second cover body is provided with a groove on the side facing the air passing hole, one end of the groove communicates with the air passing hole, the other end of the groove communicates with the first detection surface of the sensing element, and the groove and the groove wall of the receiving groove jointly form the second sensing channel.

[0020] In one of the embodiments, the second cover is provided with a sensing hole communicating with the groove, and the sensing element is embedded in the sensing hole; in the height direction of the shell, at least part of the second sensing channel is lower than the first detection surface of the sensing element.

[0021] In one of the embodiments, in the height direction of the shell, at least part of the air inlet channel is higher than the interface between the atomization cavity and the air inlet channel. It can be understood that when the atomization device is vertically placed along the height direction or is held by a user along the height direction, the condensed liquid and the like (such as tobacco tar, water droplets) of the atomization cavity are easy to flow to the air inlet channel below under the action of gravity. In another possible use scenario, the user may pour air from the air outlet end into the atomization cavity during the puffing process, and the condensed liquid and the like of the atomization cavity are also easy to flow to the air inlet channel below. However, in the present application, at least part of the air inlet channel is higher than the interface between the atomization cavity and the air inlet channel, which means that the condensed liquid cannot overcome the gravity to flow out of the air inlet hole from the air inlet channel with a higher position. Such a design can greatly avoid the occurrence of tobacco tar leakage, condensed liquid leakage and the like, and is beneficial to improving the user experience.

[0022] In one of the embodiments, in the height direction of the shell, part of the air inlet channel is bent in the bracket assembly to form a "∩" shape, and the air inlet channel at the top point of the "∩" shape is higher than the interface between the atomization cavity and the air inlet channel. Such a structure means that the condensed liquid cannot overcome the gravity to flow out of the air inlet hole from the part of the air inlet channel with the "∩" shape, and the condensed liquid cannot flow out of the air inlet hole, which is beneficial to improving the user experience.

[0023] The present application also relates to an aerosol generating device, which comprises a power supply assembly and the atomization device in any of the above embodiments, and the atomization device is electrically connected to the power supply assembly. The aerosol generating device can be a split type electronic cigarette, that is, the atomization device can be a cartridge, and the power supply device can be a cigarette rod with a power supply. For the user, the atomization device and the power supply device can be simply disassembled and replaced. The aerosol generating device can also be considered as a one-piece electronic cigarette, that is, a disposable electronic cigarette, which can be considered as an atomization assembly and a power supply assembly built in the same shell.

[0024] The aerosol generating device can be provided with the atomization device described in the above embodiments, and therefore at least has the following beneficial effects: during use, external gas can enter the atomization cavity from the gas inlet end of the gas inlet channel, and then the aerosol generated in the atomization cavity flows out from the gas outlet end for a user to inhale. When the user inhales, the airflow near the gas inlet end of the atomization cavity changes, that is, a negative pressure appears at one end of the sensing channel near the gas inlet end, and the sensing element at the other end of the sensing channel can detect the change in airflow and control the atomization device to start working. During use of the atomization device, condensate may be generated in the atomization cavity. It can be understood that when the atomization device is placed vertically along the height direction or is held by a user along the height direction, the condensate and other high-density substances in the atomization cavity are prone to flow to the lower gas inlet end under the action of gravity. In another possible use scenario, the user may blow air into the atomization cavity from the gas outlet end during inhalation, and the condensate and other substances in the atomization cavity are also prone to flow to the lower gas inlet end. At least part of the sensing channel in the present application is higher than the gas inlet end of the atomization cavity, which means that the condensate and other substances flowing out of the gas inlet end of the atomization cavity cannot directly flow through the sensing channel and touch the sensing element. In other words, the condensate and other substances cannot overcome the gravity to turn over the section of the sensing channel that is higher than the gas inlet end of the atomization cavity, and therefore the condensate and other substances cannot flow from one end of the sensing channel to the sensing element at the other end. This can avoid the contact between the sensing element and the condensate and other substances as much as possible, which can avoid the sensing element from being activated by mistake and can also avoid the corrosion of the sensing element, thereby prolonging the service life of the sensing element and preventing the decrease or failure of the detection sensitivity of the sensing element. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0026] Figure 1 A cross-sectional view of an aerosol generating device provided by an embodiment of the present application;

[0027] Figure 2 A structural perspective view of an aerosol generating device provided by an embodiment of the present application;

[0028] Figure 3 An exploded schematic view of an aerosol generating device provided by an embodiment of the present application;

[0029] Figure 4 A structural perspective view of a support assembly provided by an embodiment of the present application;

[0030] Figure 5 An exploded schematic view of a bracket assembly provided for an embodiment of the present application;

[0031] Figure 6 A sectional view of a bracket assembly provided for an embodiment of the present application;

[0032] Figure 7 An exploded schematic view of a bracket second surface, a second cover and a sensing element provided for an embodiment of the present application.

[0033] Reference signs:

[0034] 11, atomization device; 12, power supply assembly; 100, shell; 110, top cover; 111, suction nozzle; 120, main body; 130, bottom cover; 200, atomization assembly; 210, upper cover; 220, oil storage pipe; 230, oil storage element; 240, atomization pipe; 250, atomization cavity; 251, air inlet end; 252, air outlet end; 260, heating core; 300, bracket assembly; 310, first cover; 311, straight hole; 312, limiting rib; 320, second cover; 321, groove; 322, induction hole; 330, bracket; 331, first surface; 332, second surface; 3321, accommodating groove; 333, air inlet hole; 334, air passage hole; 3341, protruding rib; 340, air inlet channel; 350, induction channel; 351, first induction channel; 352, second induction channel; 500, sensing element; 510, first detection surface; 520, second detection surface; a, interface; H, height direction. DETAILED DESCRIPTION

[0035] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the present application. Therefore, the specific embodiments described herein are not intended to be limiting, but rather are to serve as examples for the practicing the present application.

[0036] Please refer to Figures 1 to 3 In some embodiments, the present application provides an atomization device 11, such as Figure 3As shown, it comprises a housing 100, an atomization assembly 200, an air inlet channel 340, an induction channel 350 and a sensing element 500. The atomization assembly 200 is arranged in the housing 100, and the atomization assembly 200 is provided with an atomization cavity 250 for generating aerosol. The atomization cavity 250 has an air outlet end 252 and an air inlet end 251 along the height direction H of the housing 100, and the air inlet end 251 is lower than the air outlet end 252. The air inlet channel 340 is in communication with the air inlet end 251 for air inlet of the atomization cavity 250. One end of the induction channel 350 is in communication with the air inlet end 251, and the other end of the induction channel 350 is provided with the sensing element 500. In an embodiment, the induction channel 350 can be directly in communication with the air inlet end 251, i.e. the induction channel 350 is directly in communication with the air inlet end 251. In another embodiment, one end of the induction channel 350 can be indirectly in communication with the air inlet end 251 through the air inlet channel 340, i.e. the induction channel 350 shares part of the airway with the air inlet channel 340, but the induction channel 350 is not used for air inlet and outlet. As shown in Figure 3 and Figure 5 As shown, in the height direction H of the housing 100, at least part of the induction channel 350 is higher than the air inlet end 251 of the atomization cavity 250. The sensing element 500 is used to drive the atomization assembly 200 to start working when the airflow of the air inlet end 251 is detected to change, such as a microphone.

[0037] The above-mentioned atomization device 11, when the user inhales, as shown in Figure 3As shown, ambient gas can enter the atomization cavity 250 from the air inlet end 251 of the air inlet channel 340, and then the aerosol generated in the atomization cavity 250 flows out from the air outlet end 252 for the user to inhale. In this process, when the user inhales, the airflow near the air inlet end 251 of the atomization cavity 250 changes, that is, the airflow or air pressure changes, that is, the sensing channel 350 has a negative pressure at one end near the air inlet end 251, and the sensing element 500 at the other end of the sensing channel 350 can detect this airflow change to control the atomization device 11 to start working. In the use process of the atomization device 11 working, condensate may be generated in the atomization cavity 250. It can be understood that when the atomization device 11 is vertically placed along the height direction H or is held by the user along the height direction H, the condensate and other high-density substances in the atomization cavity 250 are easy to flow to the air inlet end 251 below under the action of gravity. In another possible use scenario, the user may blow air into the atomization cavity 250 from the air outlet end 252 during inhalation, and the condensate and other substances in the atomization cavity 250 are also easy to flow to the air inlet end 251 below. At least part of the sensing channel 350 in the present application is higher than the air inlet end 251 of the atomization cavity 250, which means that the condensate and other substances flowing out from the air inlet end 251 of the atomization cavity 250 cannot directly flow through the sensing channel 350 to touch the sensing element 500. In other words, the condensate and other substances cannot overcome the gravity to turn over the sensing channel 350 which is higher than the air inlet end 251 of the atomization cavity 250, so the condensate and other substances cannot flow from one end of the sensing channel 350 to the sensing element 500 at the other end. The contact between the sensing element 500 and the condensate and other substances can be avoided as much as possible. This setting can avoid the sensing element 500 from being triggered to start by mistake, and can also avoid the corrosion of the sensing element 500, thereby prolonging the service life of the sensing element 500 and preventing the decrease or failure of the detection sensitivity of the sensing element 500.

[0038] As shown in some embodiments, Figure 3 and Figure 5 in the height direction H of the shell 100, at least part of the sensing channel 350 is higher than the end surface of the air inlet end 251 of the atomization cavity 250. The end surface of the air inlet end 251 of the atomization cavity 250 can be considered as the interface a between the atomization cavity 250 and the sensing channel 350.

[0039] Specifically, as shown in some embodiments, Figure 2 , Figure 3 , Figure 4 and Figure 5 the atomization device 11 further comprises a bracket assembly 300 arranged in the shell 100. As shown in Figure 3 , the bracket assembly 300 is located between the atomization assembly 200 and the bottom of the shell 100, and the sensing channel 350 and the air inlet channel 340 are formed in the bracket assembly 300. As shown in Figure 3 , Figure 4 andFigure 5 As shown, a straight hole 311 is also formed on the bracket assembly 300, the gas inlet channel 340 is communicated with the atomization cavity 250 through the straight hole 311, one end of the induction channel 350 is communicated with the atomization cavity 250 through the straight hole 311, and the other end of the induction channel 350 is provided with the sensing element 500. Among them, the interface a between the straight hole 311 and the induction channel 350 can be considered as the interface a between the atomization cavity 250 and the induction channel 350, that is, the end face of the gas inlet end 251 of the atomization cavity 250. As shown in Figure 3 and Figure 5 As shown, in some embodiments, in the height direction H of the shell 100, the part of the induction channel 350 is bent in the bracket assembly 300 to form a "∩" shape, and the induction channel 350 at the top point of the "∩" shape is higher than the end face of the gas inlet end 251. Such a structure means that the condensed liquid cannot overcome the gravity to turn over the part of the induction channel 350 in the "∩" shape in a natural state, and then it cannot flow to the place where the sensing element 500 is located.

[0040] It should be noted that in some embodiments, the gas inlet channel 340 can refer to a separate structure for conducting gas, such as a separate tubular structure, etc., that is, the gas inlet channel 340 can not be formed by the shell 100 or the bracket assembly 300. In other embodiments, the gas inlet channel 340 can also be formed by at least one of the bracket assembly 300 and the shell 100. Similarly, in some embodiments, the induction channel 350 can also refer to a tubular structure with a separate structure, that is, the induction channel 350 can not be formed by the shell 100 or the bracket assembly 300. In other embodiments, the induction channel 350 can also be formed by at least one of the bracket assembly 300 and the shell 100.

[0041] More specifically, as shown in Figures 4 to 7 As shown, in some embodiments, the bracket assembly 300 includes a bracket 330, a first cover 310 and a second cover 320. The first cover 310 and the second cover 320 can be made of silica gel or other materials.

[0042] Among them, as shown in Figure 5As shown, the first cover 310 is provided with a straight hole 311, the support 330 is provided with an air inlet hole 333 in the thickness direction, the support 330 has a first surface 331 and a second surface 332 arranged oppositely in the thickness direction, the first cover 310 is arranged on the first surface 331 and covers the air inlet hole 333, and the first cover 310, the first surface 331 and the air inlet hole 333 jointly enclose an air inlet channel 340. The support 330 is further provided with an air passing hole 334 in the thickness direction, the sensing channel 350 includes a first sensing channel 351 and a second sensing channel 352, the first cover 310 covers the air passing hole 334 from the first surface 331, the first cover 310 and the first surface 331 enclose the first sensing channel 351, the second cover 320 is arranged on the second surface 332 and covers the air passing hole 334, the second cover 320 and the second surface 332 enclose the second sensing channel 352, one end of the second sensing channel 352 communicates with the first sensing channel 351 through the air passing hole 334, and the other end of the second sensing channel 352 is provided with a sensing element 500. Figure 5 and Figure 6 As shown, in some embodiments, the first surface 331 of the support 330 is provided with a convex rib 3341 around the edge of the air passing hole 334, and in the height direction H of the shell 100, the convex rib 3341 extends into the first sensing channel 351 so that the first sensing channel 351 is bent to form a “∩” shape, and the sensing channel 350 at the top point of the “∩” shape is higher than the end surface of the air inlet end 251. It can be considered that at least the top surface of the convex rib 3341 is higher than the end surface of the air inlet end 251, and the end surface of the air inlet end 251 can be considered as the intersection a of the straight hole 311 and the first sensing channel 351. Such a structure means that the condensed liquid cannot overcome the gravity and turn over the part of the first sensing channel 351 in the “∩” shape in a natural state, so it cannot flow to the position where the sensing element 500 is located.

[0043] Please refer to Figure 7 In some embodiments, the second surface 332 of the support 330 is provided with a receiving groove 3321, the groove wall of the receiving groove 3321 is provided with the air passing hole 334, the second cover 320 is embedded in the receiving groove 3321 and encloses the second sensing channel 352 with the groove wall of the receiving groove 3321, and the sensing element 500 is embedded in the second cover 320. The sensing element 500 has a first detection surface 510 and a second detection surface 520, the first detection surface 510 communicates with the second sensing channel 352, and the second detection surface 520 communicates with the outside. The first detection surface 510 of the sensing element 500 communicates with the atomization cavity 250 through the sensing channel 350, and when the user inhales, the first detection surface 510 of the sensing element 500 can quickly detect the change in air pressure.

[0044] Further, as shown Figure 5 and Figure 6As shown, in some embodiments, the second cover 320 is provided with a groove 321 on the side facing the air passage hole 334, one end of the groove 321 is in communication with the air passage hole 334, and the other end of the groove 321 is in communication with the first detection surface 510 of the sensing element 500. The groove 321 and the groove wall of the accommodating groove 3321 form a second sensing channel 352. Further, as shown in Figure 6 As shown, in some embodiments, the second cover 320 is provided with a sensing hole 322 in communication with the groove 321, and the sensing element 500 is embedded in the sensing hole 322. In the height direction H of the shell 100, at least part of the second sensing channel 352 is lower than the first detection surface 510 of the sensing element 500.

[0045] As shown in Figure 3 and Figure 5 In some embodiments, in the height direction H of the shell 100, at least part of the air inlet channel 340 is higher than the interface a between the atomization cavity 250 and the air inlet channel 340. It can be understood that when the atomization device 11 is placed vertically along the height direction H or is held by a user along the height direction H, the condensed liquid and other substances (such as tobacco tar and water droplets) in the atomization cavity 250 are prone to flow downward to the air inlet channel 340 under the action of gravity. In another possible use scenario, the user may blow air from the air outlet end 252 into the atomization cavity 250 during smoking, and the condensed liquid and other substances in the atomization cavity 250 are also prone to flow downward to the air inlet channel 340. However, in the present application, at least part of the air inlet channel 340 is higher than the interface a between the atomization cavity 250 and the air inlet channel 340, which means that the condensed liquid cannot overcome the gravity to flow out of the air inlet hole 333 after entering the air inlet channel 340 from the atomization cavity 250. That is, such a design can greatly prevent the occurrence of tobacco tar leakage, condensed liquid leakage and the like, and is conducive to improving the user experience.

[0046] Specifically, as shown in Figure 3 and Figure 5 In some embodiments, in the height direction H of the shell 100, part of the air inlet channel 340 is bent in the bracket assembly 300 to form a “∩” shape, and the air inlet channel 340 at the top of the “∩” shape is higher than the interface a between the atomization cavity 250 and the air inlet channel 340. Such a structure means that the condensed liquid cannot overcome the gravity to flow over the part of the air inlet channel 340 in the “∩” shape in a natural state, so the condensed liquid cannot flow out of the air inlet hole 333, which is conducive to improving the user experience.

[0047] As shown in Figure 1In some embodiments, the atomization assembly 200 includes an upper cover 210, an oil storage tube 220, an oil storage member 230, an atomization tube 240, and a heating core 260. The atomization tube 240 is hollow inside to form at least part of the atomization cavity 250, the heating core 260 is arranged in the atomization cavity 250, and the oil storage member 230 and the oil storage tube 220 are sequentially sleeved from inside to outside along the radial direction of the atomization tube 240, that is, the oil storage member 230 is sleeved on the outer side surface of the atomization tube 240, and the oil storage tube 220 is sleeved on the outer side surface of the oil storage member 230. The oil storage member 230 can store atomization medium, and the oil storage member 230 can supply the atomization medium to the atomization cavity 250 of the atomization tube 240. The heating core 260 in the atomization tube 240 can heat the atomization medium to generate aerosol for a user to smoke. As shown in Figure 1 The upper cover 210 is arranged on the top of the oil storage tube 220, the bottom of the oil storage tube 220 is sleeved on the outer side surface of the first cover body 310, that is, the side of the first cover body 310 away from the support 330 is embedded in the bottom of the oil storage tube 220, and the first cover body 310, the oil storage tube 220, and the upper cover 210 jointly enclose a cavity to accommodate the oil storage member 230, the atomization tube 240, and the heating core 260 therein. Among them, one end of the atomization tube 240 close to the first cover body 310 is embedded in the straight hole 311 of the first cover body 310, that is, the straight hole 311 and the inner side space of the atomization tube 240 in communication can be regarded as the atomization cavity 250. More specifically, in order to improve the connection reliability of the atomization tube 240 and the first cover body 310, the outer side surface of the first cover body 310 can be provided with a limiting rib 312 as shown in Figure 6 The first cover body 310 can be made of a material such as silica gel that has elasticity, and when the oil storage tube 220 is sleeved on the outer side surface of the first cover body 310, the limiting rib 312 with a certain elasticity on the outer side surface of the first cover body 310 can be in interference fit with the inner side of the oil storage tube 220, thereby improving the connection reliability of the first cover body 310 and the oil storage tube 220.

[0048] In addition, as shown in Figure 2 and Figure 3 The present application also relates to an aerosol generating device, which includes a power supply assembly 12 and the atomization device 11 in any of the above embodiments, and the atomization device 11 is electrically connected to the power supply assembly 12. The aerosol generating device can be a split type electronic cigarette, that is, the atomization device 11 can be a cartridge, and the power supply assembly can be a rod with a power supply. For a user, the atomization device 11 and the power supply assembly can be simply disassembled and replaced.

[0049] The aerosol generating device can also be considered as a one-piece electronic cigarette, that is, a disposable electronic cigarette, which can be considered as the atomization assembly 200 and the power supply assembly 12 being built-in in the same shell 100. For example, as shown in Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, the shell 100 can be divided into a top cover 110 having a mouthpiece 111, a main body 120, and a bottom cover 130, which can be coupled to enclose a cavity for accommodating the atomization device 11 and the power supply assembly 12.

[0050] The above-described aerosol-generating apparatus can be provided with the atomization device 11 of each of the above-described embodiments, and thus also at least includes the following beneficial effect: during use of the atomization device 11, external gas can enter the gas inlet end 251 of the atomization cavity 250 from the gas inlet channel 340, and then the aerosol generated in the atomization cavity 250 can flow out of the gas outlet end 252 for the user to inhale. When the user inhales, the airflow near the gas inlet end 251 of the atomization cavity 250 changes, that is, a negative pressure appears at the end of the sensing channel 350 close to the gas inlet end 251, and the sensing element 500 at the other end of the sensing channel 350 can detect this change in airflow to control the atomization device 11 to start working. During use of the atomization device 11, condensate can be generated in the atomization cavity 250. It can be understood that when the atomization device 11 is placed vertically along the height direction H or is held by the user along the height direction H, the condensate and other high-density substances in the atomization cavity 250 are prone to flow downward to the gas inlet end 251 under the action of gravity. In another possible use scenario, the user can blow air into the atomization cavity 250 from the gas outlet end 252 during inhalation, and the condensate and other substances in the atomization cavity 250 are also prone to flow downward to the gas inlet end 251. At least part of the sensing channel 350 in the present application is higher than the gas inlet end 251 of the atomization cavity 250, which means that the condensate and other substances flowing out of the gas inlet end 251 of the atomization cavity 250 cannot directly flow through the sensing channel 350 to touch the sensing element 500. In other words, the condensate and other substances cannot overcome the gravity to flow over the part of the sensing channel 350 that is higher than the gas inlet end 251 of the atomization cavity 250, and thus the condensate and other substances cannot flow from one end of the sensing channel 350 to the sensing element 500 at the other end. This can avoid contact between the sensing element 500 and the condensate and other substances as much as possible, which can avoid the sensing element 500 from being activated by mistake and can also avoid corrosion of the sensing element 500, thereby prolonging the service life of the sensing element 500 and preventing a decrease or failure in the detection sensitivity of the sensing element 500.

[0051] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in a contradiction.

[0052] The above-described embodiments are merely illustrative of the present application, and the description is relatively specific and detailed, but should not be construed as limiting the scope of the patent. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the patent of the present application should be subject to the appended claims.

[0053] In the description of the present application, it should be understood that the terms "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0054] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0055] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0056] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] It is to be understood that when an element such as a layer, film or region is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms since such elements are commonly called by different names in different contexts. For example, a first element could be termed a second element without departing from the teachings provided herein.

[0058] In the description of the present specification, the description of the terms "one embodiment", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

Claims

1. An atomising device characterised in that, include: case; An atomizing component is disposed within the housing. The atomizing component has an atomizing chamber for generating aerosols. The atomizing chamber has an air outlet and an air inlet along the height direction of the housing. The air inlet is lower than the air outlet. A support assembly is disposed within the housing, located between the atomizing component and the bottom of the housing. The support assembly contains a sensing channel and an air intake channel, and also has a straight hole. The air intake channel communicates with the atomizing chamber through the straight hole and with the air intake end to allow air to enter the atomizing chamber. One end of the sensing channel communicates with the air intake end and with the atomizing chamber through the straight hole, while the other end of the sensing channel is equipped with a sensing element. At least a portion of the sensing channel is higher than the end face of the air intake end in the height direction of the housing, and the end face of the air intake end forms the interface between the straight hole and the sensing channel. The sensing element is used to drive the atomizing component to start operating when a change in airflow at the air intake end is detected.

2. The atomization device of claim 1, wherein, The end face of the air inlet is the interface between the atomizing chamber and the sensing channel.

3. The atomization device of claim 1, wherein, In the height direction of the housing, a portion of the sensing channel is bent into a "∩" shape within the bracket assembly, and the sensing channel at the apex of the "∩" shape is higher than the end face of the air intake end.

4. The atomization device of claim 1, wherein, The bracket assembly includes a bracket and a first cover. The first cover has the straight hole. The bracket has an air inlet along its thickness direction. The bracket has a first surface and a second surface that are arranged opposite to each other along its thickness direction. The first cover is disposed on the first surface and covers the air inlet. The first cover, the first surface, and the air inlet together form the air intake channel.

5. The atomization device of claim 4, wherein, The bracket assembly further includes a second cover. The bracket also has an air vent along its thickness direction. The sensing channel includes a first sensing channel and a second sensing channel. The first cover covers the air vent from the first surface. The first cover, the first surface, and the air vent together form the first sensing channel. The second cover is disposed on the second surface and covers the air vent. The second cover and the second surface together form the second sensing channel. One end of the second sensing channel is connected to the first sensing channel through the air vent. The other end of the second sensing channel is provided with the sensing element.

6. The atomization device of claim 5, wherein, The first surface of the bracket has a raised rib extending around the edge of the air vent. In the height direction of the housing, the raised rib extends into the first sensing channel, causing the first sensing channel to bend into a "∩" shape. The sensing channel at the apex of the "∩" shape is higher than the end face of the air inlet.

7. The atomization device of claim 5, wherein, The second surface of the bracket has a receiving groove, and the groove wall of the receiving groove has the air passage. The second cover is embedded in the receiving groove and surrounds the groove wall to form the second sensing channel. The sensing element is embedded in the second cover. The sensing element has a first detection surface and a second detection surface. The first detection surface is connected to the second sensing channel, and the second detection surface is connected to the outside.

8. The atomization device of claim 7, wherein, The second cover body is provided with a groove on a side facing the air passing hole, one end of the groove is communicated with the air passing hole, the other end of the groove is communicated with the first detection surface of the sensing element, and the groove and the groove wall of the accommodating groove form the second sensing channel.

9. The atomization device of claim 8, wherein, The second cover body is provided with a sensing hole communicated with the groove, and the sensing element is embedded in the sensing hole.

10. The atomization device of claim 8, wherein, In the height direction of the shell, at least part of the second sensing channel is lower than the first detection surface of the sensing element.

11. The atomization device of any one of claims 1-10, wherein, In the height direction of the shell, at least part of the air inlet channel is higher than the interface between the atomization cavity and the air inlet channel.

12. The atomization device of claim 11, wherein, In the height direction of the shell, part of the air inlet channel is bent in the bracket assembly to form a "∩" shape, and the air inlet channel at the top of the "∩" shape is higher than the interface between the atomization cavity and the air inlet channel.

13. An aerosol-generating device comprising: The atomization device comprises a power supply assembly and any one of the atomization devices in claims 1-12, and the atomization device is electrically connected with the power supply assembly.

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