Atomization assembly and aerosol generating device

Abstract

The present application discloses an atomization assembly (1000) and an aerosol generating device. The atomization assembly (1000) comprises a housing assembly (100) and a heating member (200). An e-liquid chamber (140) and an atomization chamber (150) which are spaced apart from each other are formed in the housing assembly (100); a gas inlet channel (101) and a ventilation channel (160) are further formed in the housing assembly (100), the gas inlet channel (101) is communicated with the atomization chamber (150), the ventilation channel (160) is communicated with the e-liquid chamber (140), and the atomization chamber (150) is isolated from the ventilation channel (160); and the housing assembly (100) comprises a gas channel wall (102) forming the ventilation channel (160), and the gas channel wall (102) is at least partially located in the atomization chamber (150). According to the atomization assembly (1000) in the present application, the fluidity of an e-liquid in the e-liquid chamber (140) is increased, and the e-liquid supply speed of the e-liquid in the e-liquid chamber (140) is increased, thus ensuring smooth ventilation.

Description

Atomizing assembly and aerosol generating device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 6, 2023, with application number 202322426217.6 and invention name “A Nebulizer Assembly and Aerosol Generating Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of atomization technology, and in particular to an atomization assembly and an aerosol generating device. Background Art

[0003] The statements here only provide background information related to the present application and do not necessarily constitute prior art. In the field of electronic cigarettes, high-viscosity e-liquid is loved by many people because of its outstanding advantages in taste. However, due to its high viscosity, high-viscosity e-liquid has low fluidity, which makes it difficult to ventilate the e-liquid in the oil tank. In particular, when the e-liquid in the oil tank gradually decreases, the negative pressure in the oil tank increases, making it difficult for the e-liquid in the oil tank to flow and the oil supply slow. Since high-viscosity e-liquid has the characteristic that its viscosity decreases with increasing temperature, the industry often uses the method of increasing power to preheat the e-liquid, thereby increasing the fluidity of the e-liquid and improving the difficulty in ventilating the e-liquid. However, this solution will bring about additional battery energy loss. In addition, the ventilation channel of most of the cartridges on the market is connected to the atomization chamber. Due to the influence of the suction resistance of the suction airflow during the inhalation process, the e-liquid will be drawn from the atomization chamber to the ventilation channel, causing the ventilation channel to be blocked. Technical issues

[0004] One of the purposes of the embodiments of the present application is to provide an atomizer assembly and an aerosol generating device to solve the technical problems in the prior art of using additional power to improve the difficulty of e-liquid ventilation, which will cause additional battery energy loss and the e-liquid will be drawn from the atomizer chamber into the ventilation channel during the inhalation process, causing the ventilation channel to be blocked. Technical Solutions

[0005] The technical solution adopted in the embodiment of this application is:

[0006] In the first aspect, an atomization assembly is provided, comprising a shell assembly and a heating element; the shell assembly is formed with an oil tank and an atomization tank arranged at intervals; the heating element is arranged in the shell assembly and connects the oil tank and the atomization tank; the heating element includes an atomization surface connected to the atomization tank, and the shell assembly is further formed with an air intake channel and a ventilation channel, the air intake channel is connected to the atomization tank, the ventilation channel is connected to the oil tank, the atomization tank is isolated from the ventilation channel, and the shell assembly includes an airway wall forming the ventilation channel, and the airway wall is at least partially located in the atomization tank.

[0007] In one embodiment, the ventilation channel is located beside the atomization chamber, and the heat of the atomization chamber can be conducted to the ventilation channel.

[0008] In one embodiment, the heating element is longitudinally arranged between the atomization bin and the oil bin, and the heating element has an oil inlet surface facing the oil bin and an atomization surface facing the atomization bin.

[0009] In one embodiment, the airway wall is arranged horizontally opposite to the atomizing surface of the heating element;

[0010] Alternatively, the airway wall is arranged transversely and obliquely opposite to the atomizing surface of the heating element.

[0011] In one embodiment, the air inlet end of the ventilation channel is in communication with the external atmosphere;

[0012] Alternatively, the air inlet end of the ventilation channel is connected to the external atmosphere via a connecting channel in the shell assembly, and the connecting channel is isolated from the atomization chamber.

[0013] In one embodiment, the air inlet channel includes a first channel and a second channel, the first channel is connected to the atomization chamber, and the second channel is connected to the ventilation channel.

[0014] In one embodiment, the housing assembly includes a mounting seat, a cigarette cartridge tube, and an oil pipe. The cigarette cartridge tube is mounted on the mounting seat, and the oil pipe is sleeved outside the cigarette cartridge tube and the mounting seat. The mounting seat and the cigarette cartridge tube together enclose the atomization chamber, and the cigarette cartridge tube and the oil pipe together enclose the oil tank.

[0015] The ventilation channel is opened on the outer wall of the cigarette cartridge tube and is connected to the oil tank. An air inlet connected to the outside atmosphere is opened on the oil pipe, and the air inlet is connected to the air inlet end of the ventilation channel.

[0016] In one embodiment, the housing assembly includes a mounting seat, a cigarette cartridge tube, and an oil pipe. The cigarette cartridge tube is mounted on the mounting seat, and the oil pipe is sleeved outside the cigarette cartridge tube and the mounting seat. The mounting seat and the cigarette cartridge tube together enclose the atomization chamber, and the cigarette cartridge tube and the oil pipe together enclose the oil tank.

[0017] A first accommodating cavity is defined on the outer wall of the cartridge tube, and a second accommodating cavity is defined on the outer wall of the mounting base. The two ends of the first accommodating cavity are respectively connected to the oil tank and the second accommodating cavity. The side of the second accommodating cavity facing away from the first accommodating cavity is connected to the outside atmosphere.

[0018] The ventilation channel is formed by the first accommodating cavity and the second accommodating cavity.

[0019] In one embodiment, an air inlet communicating with the outside atmosphere is provided on the oil pipe or the mounting seat, and the air inlet is communicated with a side of the second accommodating cavity facing away from the first accommodating cavity.

[0020] In one embodiment, the first accommodating cavity extends in the axial direction, the second accommodating cavity extends in the circumferential direction and is arranged around the atomization chamber, and the size of the first accommodating cavity in the circumferential direction is smaller than the size of the second accommodating cavity in the circumferential direction.

[0021] In one embodiment, an oil storage cavity is provided on the inner bottom wall of the second accommodating cavity, into which the tobacco oil in the first accommodating cavity can flow, and an axial height of the oil storage cavity is smaller than an axial height of the second accommodating cavity.

[0022] In one embodiment, the inner bottom wall of the second accommodating cavity is provided with a first sealing rib and a second sealing rib; the first sealing rib and the second sealing rib are respectively located on both sides of the first accommodating cavity in the circumferential direction, and both extend in the axial direction, and the axial dimensions of the first sealing rib and the second sealing rib are smaller than the axial dimensions of the second accommodating cavity; the oil storage cavity is formed by the first sealing rib, the second sealing rib, the oil pipe and the mounting seat.

[0023] In one embodiment, the smoke bomb tube includes an atomization section and a smoke guiding section that are interconnected, and the atomization section and the smoke guiding section are connected by a connecting section; the mounting seat has a support plate arranged opposite to the connecting section and a surrounding plate formed on the edge of the support plate, and the end face of the atomization section abuts the end face of the surrounding plate; the oil pipe is sleeved outside the atomization section, the smoke guiding section and the surrounding plate, the first accommodating chamber is opened on the outer wall of the atomization section and opens toward the inner wall of the oil pipe, and the second accommodating chamber is opened on the outer wall of the surrounding plate and opens toward the inner wall of the oil pipe.

[0024] In one embodiment, the atomization assembly further includes a connecting electrode, an electrode block extends from the enclosure of the mounting seat, the connecting electrode and the electrode block are electrically connected to the two connecting parts on the heating element, respectively, and the mounting seat and the connecting electrode are electrically connected to the battery assembly, respectively.

[0025] In a second aspect, the present application also provides an aerosol generating device, comprising a battery assembly, a nozzle, and the aforementioned atomization assembly; the nozzle is connected to the atomization assembly, and the battery assembly is electrically connected to the atomization assembly. Beneficial effects

[0026] The beneficial effects of the atomizer assembly and aerosol generating device provided by the embodiment of the present application are as follows: when the heating element starts working and part of the oil in the oil tank is consumed, the negative pressure of the oil tank will increase, and the gas in the ventilation channel will enter the oil tank to maintain the internal and external air pressure balance. Based on this, on the one hand, due to the influence of the viscosity of the oil, the gas entering the oil tank will not immediately rise to the empty position of the oil tank, but will rise slowly, thereby pressurizing the oil to squeeze the oil as much as possible to the oil inlet end of the heating element, thereby increasing the fluidity of the oil in the oil tank, improving the oil supply speed of the oil in the oil tank, and ensuring smooth ventilation; on the other hand, because the ventilation channel is isolated from the atomizer tank, when the smoker draws, the oil will not be drawn from the atomizer tank to the ventilation channel due to the influence of the suction resistance of the suction airflow, thereby avoiding the blockage of the ventilation channel caused by the suction resistance of the suction airflow. At the same time, by connecting the atomizing surface of the heating element to the atomizing chamber, the atomizing surface can generate high-temperature aerosol, so that the temperature in the atomizing chamber is high. At the same time, the airway wall of the ventilation channel is at least partially located in the atomizing chamber, so that the temperature in the atomizing chamber can be transferred to the high-viscosity oil in and near the ventilation channel through the airway wall, further increasing the fluidity of the e-liquid, so that the e-liquid can be ventilated smoothly without adding additional power, which can reduce energy consumption and cost. At the same time, there is no need to increase the circuit structure, simplify the structure of the atomizing component, reduce the volume of the atomizing component, and facilitate portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] FIG1 is a perspective schematic diagram of an aerosol generating device provided in an embodiment of the present application;

[0029] FIG2 is an exploded schematic diagram of an aerosol generating device provided in an embodiment of the present application;

[0030] FIG3 is an exploded schematic diagram of the nozzle and atomization assembly of the aerosol generating device provided in an embodiment of the present application;

[0031] FIG4 is a side view of a nozzle and atomizing assembly of an aerosol generating device provided in an embodiment of the present application;

[0032] FIG5 is a schematic cross-sectional view of the nozzle and atomizing assembly of the aerosol generating device in FIG4 along line AA;

[0033] FIG6 is an enlarged schematic diagram of a portion B in FIG5 ;

[0034] FIG7 is a schematic structural diagram of a mounting base of an atomizer assembly provided in Example 1 of the present application;

[0035] FIG8 is a schematic diagram of a partial structure of an atomizing assembly provided in Example 2 of the present application;

[0036] FIG9 is a schematic structural diagram of a mounting base of an atomizing assembly provided in Example 2 of the present application;

[0037] FIG10 is a schematic structural diagram of the cartridge tube of the atomization assembly provided in an embodiment of the present application.

[0038] Among them, the reference numerals in the figures are:

[0039] 1000, atomizer assembly; 100, housing assembly; 110, mounting base; 111, second accommodating chamber; 112, support plate; 113, enclosure; 114, extension plate; 115, electrode block; 116, air inlet; 120, cartridge tube; 121, first accommodating chamber; 122, atomizer section; 123, smoke guide section; 124, connecting section; 130, oil pipe; 140, oil tank; 150, atomizer tank; 160 , ventilation channel; 161, air inlet end; 170, oil storage chamber; 180, first sealing rib; 190, second sealing rib; 200, heating element; 201, oil inlet surface; 202, atomizing surface; 203, connecting part; 300, sealing element; 400, connecting electrode; 500, electrode bracket; 2000, battery assembly; 3000, suction nozzle; 4000, sealing sleeve; 101, air inlet channel; 102, airway wall. Modes for Carrying Out the Invention

[0040] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit this application.

[0041] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] In order to illustrate the technical solution provided by this application, a detailed description is given below with reference to specific drawings and embodiments.

[0043] Referring to Figures 1 and 2, an embodiment of the present application provides an aerosol generating device, including a battery assembly 2000, an atomizer assembly 1000 and a mouthpiece 3000; the battery assembly 2000 is electrically connected to the atomizer assembly 1000, and the battery assembly 2000 is used to power the atomizer assembly 1000 to enable the atomizer assembly 1000 to start atomization; the atomizer assembly 1000 is used to atomize the tobacco oil into aerosol particles; the mouthpiece 3000 is connected to the atomizer assembly 1000 and is used to deliver the aerosol particles generated by the atomizer assembly 1000 to the oral cavity of the smoker.

[0044] Please refer to Figures 3 to 5. In one embodiment, the atomization assembly 1000 includes a shell assembly 100 and a heating element 200. The shell assembly 100 is formed with an oil tank 140 and an atomization tank 150 arranged at intervals. The heating element 200 is arranged in the shell assembly 100 and connects the oil tank 140 and the atomization tank 150; the heating element 200 includes an atomization surface 202 connected to the atomization tank 150. The shell assembly 100 is also formed with an air intake channel 101 and a ventilation channel 160. The air intake channel 101 is connected to the atomization tank 150, and the ventilation channel 160 is connected to the oil tank 140. The atomization tank 150 is isolated from the ventilation channel 160. The shell assembly 100 includes an airway wall 102 forming the ventilation channel 160, and the airway wall 102 is at least partially located in the atomization tank 150.

[0045] The heating element 200 connects the oil tank 140 and the atomization tank 150. The heating element 200 can be arranged in the oil tank 140 and connected to the atomization tank 150; or the heating element 200 can be arranged between the atomization tank 150 and the oil tank 140; or the heating element 200 can be arranged in the atomization tank 150 and connected to the oil tank 140.

[0046] In the atomizer assembly 1000 provided in the present application, when the heating element 200 starts working and part of the oil in the oil tank 140 is consumed, the negative pressure in the oil tank 140 will increase, and the gas in the ventilation channel 160 will enter the oil tank 140 to maintain the internal and external pressure balance. Based on this, firstly, due to the influence of the viscosity of the oil, the gas entering the oil tank 140 will not immediately rise to the empty position of the oil tank 140, but will rise slowly, thereby pressurizing the oil to squeeze the oil as much as possible toward the oil inlet end of the heating element 200, thereby increasing the fluidity of the oil in the oil tank 140, improving the oil supply speed of the oil in the oil tank 140, and ensuring smooth ventilation; secondly, because the ventilation channel 160 is isolated from the atomizer tank 150, when the smoker draws in, the oil will not be drawn from the atomizer tank 150 to the ventilation channel 160 due to the influence of the suction resistance of the suction airflow, thereby avoiding the blockage of the ventilation channel 160 caused by the suction resistance of the suction airflow. At the same time, by connecting the atomizing surface 202 of the heating element 200 to the atomizing chamber 150, the atomizing surface 202 can generate high-temperature aerosol, so that the temperature in the atomizing chamber 150 is high. At the same time, the airway wall 102 of the ventilation channel 160 is at least partially located in the atomizing chamber 150, so that the temperature in the atomizing chamber 150 can be transferred to the high-viscosity oil in and near the ventilation channel 160 through the airway wall 102, further increasing the fluidity of the smoke oil, so that the smoke oil can be ventilated smoothly without adding additional power, which can reduce energy consumption and cost. At the same time, there is no need to increase the circuit structure, simplifying the structure of the atomizing component 1000, reducing the volume of the atomizing component 1000, and making it easy to carry.

[0047] Due to the characteristics of high-viscosity e-liquid (viscosity changes greatly with temperature, the higher the temperature, the lower the viscosity; conversely, the lower the temperature, the greater the viscosity), the backfill process cannot usually be used. However, the use of the forward filling process will cause the problem of oil injection and liquid squeezing. The ventilation channel 160 is connected to the oil tank 140. During the process of filling the oil tank 140, some e-liquid will be squeezed into the ventilation channel 160 under the action of air pressure, causing the ventilation channel 160 to be blocked.

[0048] In one embodiment, as shown in FIG6 , the ventilation channel 160 is located beside the atomization chamber 150, and the heat of the atomization chamber 150 can be transferred to the ventilation channel 160. The aerosol particles atomized by the heating element 200 also carry a certain amount of heat after being introduced into the atomization chamber 150. By locating the ventilation channel 160 beside the atomization chamber 150, the heat of the atomization chamber 150 can be transferred to the ventilation channel 160, which can heat the tobacco oil that enters the ventilation channel 160 due to oil injection and extrusion, making the tobacco oil that enters the ventilation channel 160 due to oil injection and extrusion fluid, thereby allowing the tobacco oil to ventilate smoothly.

[0049] In one embodiment, as shown in FIG. 6 , the heating element 200 is longitudinally disposed between the atomization bin 150 and the oil bin 140 . The heating element 200 has an oil inlet surface 201 facing the oil bin 140 and an atomization surface 202 facing the atomization bin 150 .

[0050] Among them, the longitudinal direction here refers to the direction extending roughly along the axial direction of the entire atomizer assembly 1000. For example, the heating element 200 is arranged in a direction parallel to the axial direction of the atomizer assembly 1000, or the heating element 200 is arranged in a manner that is inclined at an angle to the axial direction of the atomizer assembly 1000. Generally speaking, the extension trend of the heating element 200 is the same as the axial direction of the atomizer assembly 1000, that is, the heating element 200 is installed on the side of the atomizer bin 150, and the oil inlet surface 201 and the atomizing surface 202 of the heating element 200 are arranged roughly parallel to the airflow direction in the atomizer bin 150. In fact, when designing, the block heating element 200 generally designs the thickness between the oil inlet surface 201 and the atomizing surface 202 to be smaller, and the area of ​​the oil inlet surface 201 of the heating element 200 to be larger. Therefore, the design of installing the heating element 200 on the side of the atomizer bin 150 in this application can reduce the lateral space occupied by the heating element 200. It is understandable that in other embodiments of the present application, when the structural volume of the atomization assembly 1000 allows, the heating element 200 can also be horizontally arranged in the atomization chamber 150, and this is not the only limitation here.

[0051] It should be noted here that the axial direction involved in this application refers to the axial direction of the shell assembly 100. When the shell assembly 100 is roughly cylindrical, the axial direction of the shell assembly 100 refers to the central axial direction of the shell assembly 100; when the shell assembly 100 is irregularly formed, the axial direction of the shell assembly 100 refers to the length extension direction of the shell assembly 100.

[0052] At the same time, since the ventilation channel 160 is located next to the atomization bin 150, the heating element 200 is installed on the side of the atomization bin 150. The aerosol particles atomized by the heating element 200 will hit the wall of the atomization bin 150 on the opposite side of the heating element 200, which can make the temperature of the wall of the atomization bin 150 on the opposite side of the heating element 200 higher, thereby being able to transfer more heat to the ventilation channel 160 through the wall of the atomization bin 150. Specifically, referring to Figure 6, the airway wall 102 is arranged horizontally opposite the atomization surface 202 of the heating element 200, so that the aerosol particles atomized by the heating element 200 will hit the airway wall 102 of the ventilation channel 160 on the opposite side of the heating element 200, thereby being able to quickly heat the airflow in the ventilation channel 160. It can be understood that in other embodiments, the airway wall 102 can also be arranged horizontally and obliquely to the atomization surface 202 of the heating element 200.

[0053] In actual applications, the air inlet end 161 of the ventilation channel 160 can be connected to the outside atmosphere. The ventilation channel 160 can also be connected to other connecting channels in the housing assembly 100, as long as the ventilation channel 160 is isolated from the atomization chamber 150, that is, the connecting channel is isolated from the atomization chamber 150. Those skilled in the art can choose the setting according to actual needs.

[0054] In one embodiment, the air inlet channel 101 includes a first channel (not shown) and a second channel (not shown). The first channel connects to the atomization chamber 150, and the second channel connects to the ventilation channel 160, thereby isolating the atomization chamber 150 from the ventilation channel 160. Specifically, when a smoker draws on the mouthpiece 3000, external air enters the atomization chamber 150 through the first channel. Similarly, affected by the airflow, the tobacco oil in the oil reservoir 140 enters the heating element 200. After being heated and atomized by the heating element 200, the aerosol particles are directed into the atomization chamber 150. Then, affected by the airflow, they enter the mouthpiece 3000 from the atomization chamber 150 and, through the mouthpiece 3000, enter the smoker's mouth. When the heating element 200 begins operating and some of the tobacco oil in the oil reservoir 140 is consumed, the negative pressure in the oil reservoir 140 increases. To maintain internal and external pressure equilibrium, air in the second channel enters the oil reservoir 140 through the ventilation channel 160, increasing the fluidity of the tobacco oil in the oil reservoir 140 and ensuring smooth ventilation.

[0055] In one embodiment, referring to FIG6 , the air inlet end 161 of the ventilation channel 160 is connected to the outside atmosphere. The black arrows in the figure represent the flow direction of the fluid, wherein the arrow in the middle flowing from bottom to top represents the gas flow in the airflow channel of the atomizer assembly 1000, the arrow on the left represents the tobacco oil in the oil tank 140 flowing downward and rightward toward the heating element 200, and the arrow on the right represents the outside atmosphere flowing from bottom to top into the oil tank 140 through the ventilation channel 160. Specifically, when the smoker draws on the mouthpiece 3000, the external air enters the atomizer chamber 150 from bottom to top. Also affected by the airflow, the tobacco oil in the oil tank 140 enters the heating element 200. The aerosol particles heated and atomized by the heating element 200 are introduced into the atomizer chamber 150, and then, affected by the airflow, enter the mouthpiece 3000 from the atomizer chamber 150, and then enter the mouthpiece 3000 through the mouthpiece 3000. When the heating element 200 starts working and part of the oil in the oil tank 140 is consumed, the negative pressure in the oil tank 140 will increase. In order to maintain the balance of internal and external air pressure, the outside atmosphere will enter the oil tank 140 through the ventilation channel 160, increasing the fluidity of the oil in the oil tank 140 and ensuring smooth ventilation.

[0056] In one embodiment, referring to Figures 6 and 8 , the atomizer assembly 1000 further includes a sealing member 300, through which the heating element 200 is sealed and installed between the oil tank 140 and the atomizer tank 150. The provision of the sealing member 300 ensures a sealed connection between the heating element 200 and the housing assembly 100, preventing the e-liquid in the oil tank 140 from flowing into the atomizer tank 150 through the gap between the heating element 200 and the housing assembly 100, thereby reducing the risk of un-atomized e-liquid being directly inhaled into the user's mouth.

[0057] In one embodiment, referring to Figures 3 and 6 to 9, the shell assembly 100 includes a mounting seat 110, a cigarette cartridge tube 120 and an oil pipe 130. The cigarette cartridge tube 120 is installed on the mounting seat 110, and the oil pipe 130 is sleeved outside the cigarette cartridge tube 120 and the mounting seat 110. The mounting seat 110 and the cigarette cartridge tube 120 together form an atomization bin 150, and the cigarette cartridge tube 120 and the oil pipe 130 together form an oil tank 140; the ventilation channel 160 is opened on the outer wall of the cigarette cartridge tube 120 and is connected to the oil tank 140, and an air inlet 116 connected to the outside atmosphere is opened on the oil pipe 130, and the air inlet 116 is connected to the air inlet end 161 of the ventilation channel 160.

[0058] Specifically, referring to Figures 6 to 9, the cigarette cartridge tube 120 includes an atomizing section 122 and a smoke guiding section 123 that are interconnected, and the atomizing section 122 and the smoke guiding section 123 are connected by a connecting section 124. The mounting base 110 has a support plate 112 arranged opposite to the connecting section 124 and a surrounding plate 113 formed on the edge of the support plate 112. The top end of the surrounding plate 113 is axially extended with an extension plate 114. The heating element 200 is supported on the support plate 112 and is arranged in the inner cavity of the atomizing section 122. The oil pipe 130 is sleeved outside the atomizing section 122, the smoke guiding section 123 and the surrounding plate 113. The oil pipe 130 and the smoke guiding section 123 enclose an oil tank 140, and the surrounding plate 113, the extension plate 114 and the atomizing section 122 together enclose an atomizing tank 150. The atomizing section 122 is sleeved outside the extension plate 114, and the end face of the atomizing section 122 abuts against the end face of the enclosure 113. The ventilation channel 160 is provided on the outer wall of the atomizing section 122 and is connected to the oil tank 140. The oil pipe 130 is provided with an air inlet 116 connected to the outside atmosphere, and the air inlet 116 is connected to the air inlet end 161 of the ventilation channel 160.

[0059] Preferably, the ventilation channel 160 is arranged on the outer wall of the atomization section 122 and passes through both ends of the atomization section 122 in the axial direction. In this way, the axial size of the ventilation channel 160 can be increased. When the ventilation channel 160 is located next to the atomization bin 150, the atomization bin 150 can transfer more heat to the ventilation channel 160.

[0060] In one embodiment, referring to Figures 3 and 6 to 9, the shell assembly 100 includes a mounting base 110, a cigarette cartridge tube 120 and an oil pipe 130. The cigarette cartridge tube 120 is installed on the mounting base 110, and the oil pipe 130 is sleeved outside the cigarette cartridge tube 120 and the mounting base 110. The mounting base 110 and the cigarette cartridge tube 120 together form an atomization bin 150, and the cigarette cartridge tube 120 and the oil pipe 130 together form an oil tank 140; a first accommodating chamber 121 is provided on the outer wall of the cigarette cartridge tube 120, and a second accommodating chamber 111 is provided on the outer wall of the mounting base 110. The two ends of the first accommodating chamber 121 are respectively connected to the oil tank 140 and the second accommodating chamber 111, and the side of the second accommodating chamber 111 facing away from the first accommodating chamber 121 is connected to the outside atmosphere; the ventilation channel 160 is formed by the first accommodating chamber 121 and the second accommodating chamber 111. In this way, the axial size of the ventilation channel 160 can be increased. When the ventilation channel 160 is located beside the atomization chamber 150 , the atomization chamber 150 can transfer more heat to the ventilation channel 160 .

[0061] Specifically, referring to Figures 6 to 10, the cigarette cartridge tube 120 includes an atomizing section 122 and a smoke guiding section 123 that are interconnected, and the atomizing section 122 and the smoke guiding section 123 are connected by a connecting section 124. The mounting base 110 has a support plate 112 arranged opposite to the connecting section 124 and a surrounding plate 113 formed on the edge of the support plate 112. An extension plate 114 extends axially from the top of the surrounding plate 113. The heating element 200 is supported on the support plate 112 and is arranged in the inner cavity of the atomizing section 122. The oil pipe 130 is sleeved outside the atomizing section 122, the smoke guiding section 123 and the surrounding plate 113. The oil pipe 130 and the smoke guiding section 123 enclose an oil tank 140, and the surrounding plate 113, the extension plate 114 and the atomizing section 122 together enclose an atomizing tank 150. The atomizing section 122 is sleeved outside the extension plate 114, and the end face of the atomizing section 122 abuts against the end face of the enclosure 113. The first accommodating chamber 121 is opened on the outer wall of the atomizing section 122 and opens toward the inner wall of the oil pipe 130. The second accommodating chamber 111 is opened on the outer wall of the enclosure 113 and opens toward the inner wall of the oil pipe 130. The first accommodating chamber 121 runs through both ends of the atomizing section 122 in the axial direction. The two ends of the first accommodating chamber 121 in the axial direction are respectively connected to the oil tank 140 and the second accommodating chamber 111. The side of the second accommodating chamber 111 facing away from the first accommodating chamber 121 is connected to the outside atmosphere. The ventilation channel 160 is jointly formed by the first accommodating chamber 121 and the second accommodating chamber 111.

[0062] In actual application, the side of the second accommodating chamber 111 facing away from the first accommodating chamber 121 is connected to the outside atmosphere. It can be that an air inlet 116 connected to the outside is opened on the oil pipe 130, and the air inlet 116 is connected to the side of the second accommodating chamber 111 facing away from the first accommodating chamber 121; it can also be, please refer to Figures 7 to 9, an air inlet 116 connected to the outside atmosphere is opened on the mounting base 110, and the air inlet 116 is connected to the side of the second accommodating chamber 111 facing away from the first accommodating chamber 121. As long as the second accommodating chamber 111 can be connected to the outside, technical personnel in this field will not make specific limitations on this.

[0063] Among them, an air inlet 116 connected to the outside atmosphere is opened on the mounting seat 110, and the air inlet 116 is connected to the side of the second accommodating cavity 111 away from the first accommodating cavity 121. It can be that the enclosure 113 of the mounting seat 110 is provided with an air inlet 116 connected to the second accommodating cavity 111 on the end face close to the battery assembly 2000 in the axial direction; or it can be that the air inlet 116 connected to the second accommodating cavity 111 is opened on the side wall of the mounting seat 110.

[0064] The number of the air inlet 116 may be one or more, which is not specifically limited in this embodiment.

[0065] In one embodiment, referring to Figures 3 and 8, the atomizer assembly 1000 further includes a connecting electrode 400 and an electrode holder 500. The electrode holder 500 is disposed in the mounting seat 110, the connecting electrode 400 is mounted on the electrode holder 500, an electrode block 115 extends from the enclosure 113 of the mounting seat 110, the connecting electrode 400 and the electrode block 115 are electrically connected to the two connecting portions 203 on the heating element 200, and the mounting seat 110 and the connecting electrode 400 are electrically connected to the battery assembly 2000, so that the heating element 200 can be powered by the battery structure. Since the electrode block 115 extends from the enclosure 113 of the mounting seat 110, the connecting electrode 400 and the electrode block 115 are electrically connected to the two connecting portions 203 on the heating element 200, respectively, the provision of the electrode holder 500 can not only be used to position the installation of the connecting electrode 400, but also to achieve insulation between the connecting electrode 400 and the mounting seat 110.

[0066] In one embodiment, referring to Figures 7 to 10, the first accommodating chamber 121 extends axially, the second accommodating chamber 111 extends circumferentially and surrounds the atomization chamber 150, and the circumferential size of the first accommodating chamber 121 is smaller than the circumferential size of the second accommodating chamber 111. This increases the difficulty of high-viscosity tobacco oil flowing from the first accommodating chamber 121 connected to the oil tank 140 into the ventilation channel 160. At the same time, because the second accommodating chamber 111 extends circumferentially and surrounds the atomization chamber 150, the atomization chamber 150 can transfer more heat to the second accommodating chamber 111, and the gas in the second accommodating chamber 111 is fully heated and then transferred to the first accommodating chamber 121, and finally enters the oil tank 140, thereby increasing the fluidity of the tobacco oil in the ventilation channel 160 and the oil tank 140.

[0067] In one embodiment, referring to Figures 7 to 10, an oil storage chamber 170 is provided on the inner bottom wall of the second accommodating chamber 111, and the tobacco oil in the first accommodating chamber 121 can flow into the oil storage chamber 170. The axial height of the oil storage chamber 170 is smaller than the axial height of the second accommodating chamber 111. Since the second accommodating chamber 111 is connected to the outside atmosphere, when high-viscosity tobacco oil enters the second accommodating chamber 111 through the first accommodating chamber 121 due to oil injection, squeezing or other reasons, the high-viscosity tobacco oil will flow into the outside atmosphere through the second accommodating chamber 111, causing tobacco oil leakage. An oil storage chamber 170 is provided on the inner bottom wall of the second accommodating chamber 111. When high-viscosity tobacco oil enters the second accommodating chamber 111 through the first accommodating chamber 121, it will flow into the oil storage chamber 170 for collection, thereby avoiding tobacco oil leakage. At the same time, since the axial height of the oil storage chamber 170 is smaller than the axial height of the second accommodating chamber 111, the oil storage chamber 170 can be prevented from interfering with the connection between the first accommodating chamber 121 and the second accommodating chamber 111, which not only avoids tobacco oil leakage, but also ensures smooth ventilation of the ventilation channel 160.

[0068] In actual application, the oil storage chamber 170 can be directly formed in the second accommodating chamber 111, or it can be formed by the outer wall of the enclosure 113 of the mounting seat 110, the inner wall of the oil pipe 130 and other structures provided in the second accommodating chamber 111.

[0069] In one embodiment, referring to Figures 8 and 9, the inner bottom wall of the second accommodating chamber 111 is provided with a first sealing rib 180 and a second sealing rib 190; the first sealing rib 180 and the second sealing rib 190 are respectively located on both sides of the first accommodating chamber 121 in the circumferential direction, and both extend axially. The axial dimensions of the first sealing rib 180 and the second sealing rib 190 are smaller than the axial dimensions of the second accommodating chamber 111, so as to avoid the first seal 300 and the second sealing rib 190 interfering with the connection between the first accommodating chamber 121 and the second accommodating chamber 111, thereby ensuring smooth ventilation of the ventilation channel 160; the oil storage chamber 170 is formed by the first sealing rib 180, the second sealing rib 190, the oil pipe 130 and the mounting seat 110.

[0070] The first sealing rib 180 and the second sealing rib 190 are respectively located on both sides of the first accommodating chamber 121 in the circumferential direction. In this way, after the tobacco oil in the oil tank 140 enters the first accommodating chamber 121, it can enter the oil storage chamber 170 under the action of gravity.

[0071] In one embodiment, referring to FIG. 3 , the cigarette cartridge tube 120 and the oil tube 130 are both sealedly connected to the mouthpiece 3000 via a sealing sleeve 4000 to prevent the oil from overflowing into the cigarette cartridge tube 120 or overflowing outside the tube.

[0072] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. An atomizing assembly, characterized in that: It includes a shell assembly and a heating element; the shell assembly is formed with an oil tank and an atomization tank arranged at intervals; the heating element is arranged in the shell assembly and connects the oil tank and the atomization tank; the heating element includes an atomization surface connected to the atomization tank, and the shell assembly is also formed with an air intake channel and a ventilation channel, the air intake channel is connected to the atomization tank, the ventilation channel is connected to the oil tank, the atomization tank is isolated from the ventilation channel, and the shell assembly includes an airway wall forming the ventilation channel, and the airway wall is at least partially located in the atomization tank.

2. The atomizer assembly according to claim 1, characterized in that: The ventilation channel is located beside the atomization chamber, and the heat of the atomization chamber can be conducted to the ventilation channel.

3. The atomizer assembly according to claim 1, characterized in that: The heating element is longitudinally arranged between the atomization bin and the oil bin, and the heating element has an oil inlet surface facing the oil bin and an atomization surface facing the atomization bin.

4. The atomizer assembly according to claim 3, characterized in that: The airway wall is arranged horizontally opposite to the atomizing surface of the heating element; Alternatively, the airway wall is arranged transversely and obliquely opposite to the atomizing surface of the heating element.

5. The atomizer assembly according to any one of claims 1 to 4, characterized in that: The air inlet end of the ventilation channel is in communication with the external atmosphere; Alternatively, the air inlet end of the ventilation channel is connected to the external atmosphere via a connecting channel in the shell assembly, and the connecting channel is isolated from the atomization chamber.

6. The atomizer assembly according to any one of claims 1 to 4, characterized in that: The air inlet channel includes a first channel and a second channel, the first channel is connected to the atomization bin, and the second channel is connected to the ventilation channel.

7. The atomizer assembly according to any one of claims 1 to 4, characterized in that: The housing assembly comprises a mounting seat, a cigarette cartridge tube and an oil pipe, wherein the cigarette cartridge tube is mounted on the mounting seat, and the oil pipe is sleeved outside the cigarette cartridge tube and the mounting seat, wherein the mounting seat and the cigarette cartridge tube are jointly enclosed to form the atomization bin, and the cigarette cartridge tube and the oil pipe are jointly enclosed to form the oil bin; The ventilation channel is opened on the outer wall of the cigarette bomb tube and is connected with the oil tank. The oil pipe is provided with an air inlet connected with the outside atmosphere, and the air inlet is connected with the air inlet end of the ventilation channel.

8. The atomizer assembly according to any one of claims 1 to 4, characterized in that: The housing assembly comprises a mounting seat, a cigarette cartridge tube and an oil pipe, wherein the cigarette cartridge tube is mounted on the mounting seat, and the oil pipe is sleeved outside the cigarette cartridge tube and the mounting seat, wherein the mounting seat and the cigarette cartridge tube are jointly enclosed to form the atomization bin, and the cigarette cartridge tube and the oil pipe are jointly enclosed to form the oil bin; The outer wall of the cigarette cartridge tube is provided with a first accommodating cavity, and the outer wall of the mounting seat is provided with a second accommodating cavity, the two ends of the first accommodating cavity are respectively connected to the oil tank and the second accommodating cavity, and the side of the second accommodating cavity away from the first accommodating cavity is connected to the outside atmosphere; The ventilation channel is formed by the first accommodating chamber and the second accommodating chamber.

9. The atomizer assembly according to claim 8, characterized in that: An air inlet connected to the outside atmosphere is provided on the oil pipe or the mounting seat, and the air inlet is connected to a side of the second accommodating cavity away from the first accommodating cavity.

10. The atomizer assembly according to claim 8, characterized in that: The first accommodating cavity extends in the axial direction, the second accommodating cavity extends in the circumferential direction and is arranged around the atomization bin, and the size of the first accommodating cavity in the circumferential direction is smaller than the size of the second accommodating cavity in the circumferential direction.

11. The atomizer assembly according to claim 10, characterized in that: An oil storage cavity is provided on the inner bottom wall of the second accommodating cavity, and the tobacco oil in the first accommodating cavity can flow into the oil storage cavity. The axial height of the oil storage cavity is smaller than the axial height of the second accommodating cavity.

12. The atomizer assembly according to claim 11, characterized in that: The inner bottom wall of the second accommodating cavity is provided with a first sealing rib and a second sealing rib; the first sealing rib and the second sealing rib are respectively located on both sides of the first accommodating cavity in the circumferential direction, and both extend in the axial direction, and the axial dimensions of the first sealing rib and the second sealing rib are smaller than the axial dimensions of the second accommodating cavity; the oil storage cavity is formed by the first sealing rib, the second sealing rib, the oil pipe and the mounting seat.

13. The atomizer assembly according to claim 8, characterized in that: The smoke bomb tube includes an atomization section and a smoke guiding section which are interconnected, and the atomization section and the smoke guiding section are connected by a connecting section; the mounting seat has a supporting plate arranged opposite to the connecting section and a surrounding plate formed on a peripheral edge of the supporting plate, and the end face of the atomization section abuts against the end face of the surrounding plate; the oil pipe is sleeved outside the atomization section, the smoke guiding section and the surrounding plate, the first accommodating chamber is opened on the outer wall of the atomization section and opens toward the inner wall of the oil pipe, and the second accommodating chamber is opened on the outer wall of the surrounding plate and opens toward the inner wall of the oil pipe.

14. The atomizer assembly according to claim 13, characterized in that: The atomization assembly also includes a connecting electrode, an electrode block extends from the enclosure of the mounting seat, the connecting electrode and the electrode block are electrically connected to two connecting parts on the heating element respectively, and the mounting seat and the connecting electrode are electrically connected to the battery assembly respectively.

15. An aerosol generating device, characterized in that: It comprises a battery assembly, a suction nozzle and an atomizer assembly as described in any one of claims 1 to 14; the suction nozzle is connected to the atomizer assembly, and the battery assembly is electrically connected to the atomizer assembly.

Images