Atomizer and aerosol generating device

Abstract

An atomizer (100) comprises a storage member (10), a cartridge tube (20), a heating body (30), and a sealing member (40). The cartridge tube (20) is mounted in a loading cavity (11) of the storage member (10), and the cartridge tube (20) is provided with a first air channel (211) and a mounting cavity (231) which is in communication with both the first air channel (211) and the loading cavity (11). The heating body (30) is mounted in the mounting cavity (231), and is provided with an atomizing cavity (31) running through two opposite ends and in communication with the first air channel (211). The sealing member (40) is arranged in the mounting cavity (231), is located between the cartridge tube (20) and the heating body (30), and a first liquid storage recess (41) in communication with the atomizing cavity (31) is provided on the side of the sealing member (40) facing the atomizing cavity (31).

Description

Atomizer and aerosol generating device

[0001] Priority information

[0002] This application claims priority to and the benefit of the filing date of Chinese Patent Application No. 202422164194.0, filed September 3, 2024, and Chinese Patent Application No. 202422164216.3, filed September 3, 2024, and the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of atomization technology, and more particularly, to an atomizer and an aerosol generating device. BACKGROUND

[0004] In the case where the aerosol generating device includes a cylindrical heating element, the center of the cylindrical heating element can be provided with an atomization cavity. At this time, the atomization cavity can correspond to and communicate with both the first air passage (upper end air passage) and the second air passage (lower end air passage), the flow path of the aerosol is relatively short, and the user can quickly suck the aerosol. However, when the user sucks, the aerosol generating substrate near the heating element is easy to leak into the first air passage and / or the second air passage, resulting in blockage of the first air passage and / or the second air passage, and the aerosol cannot flow out of the aerosol generating device through the air passage. SUMMARY

[0005] The present application provides an atomizer and an aerosol generating device.

[0006] The atomizer of the present application includes a storage member, a cartridge tube, a heating element, and a sealing member. The storage member is provided with a loading cavity for loading an aerosol generating substrate. The cartridge tube is installed in the loading cavity, and the cartridge tube is provided with an installation cavity and a first air passage, and the installation cavity communicates with the first air passage and the loading cavity. The heating element is installed in the installation cavity, and the heating element is provided with an atomization cavity penetrating through opposite ends, and the atomization cavity communicates with the first air passage. The sealing member is installed in the installation cavity and located between the cartridge tube and the heating element, and the side of the sealing member facing the atomization cavity is provided with an oil hiding groove, and the oil hiding groove communicates with the atomization cavity.

[0007] The aerosol generating device of the embodiments of the present application comprises a battery assembly and an atomizer, and the atomizer is electrically connected with the battery assembly. The atomizer comprises a storage member, a cartridge tube, a heating body and a sealing member. The storage member is provided with a loading cavity for loading aerosol generating substrate. The cartridge tube is installed in the loading cavity, and the cartridge tube is provided with a mounting cavity and a first air channel, and the mounting cavity is in communication with the first air channel and the loading cavity. The heating body is installed in the mounting cavity, and the heating body is provided with an atomizing cavity penetrating through opposite ends, and the atomizing cavity is in communication with the first air channel. The sealing member is installed in the mounting cavity and located between the cartridge tube and the heating body, and one side of the sealing member facing the atomizing cavity is provided with an oil storage groove in communication with the atomizing cavity.

[0008] In the atomizer and the aerosol generating device of the above embodiments of the present application, when a user inhales, a small part of the aerosol generating substrate in the heating body may leak, and the aerosol generating substrate leaking from the heating body can be stored in the oil storage groove. After the user finishes inhaling, the aerosol generating substrate in the oil storage groove can be sucked back into the heating body again, so that the problem of the aerosol generating substrate leaking from the heating body entering the air channel to block the air channel can be avoided, and the aerosol can smoothly flow out of the atomizer, the user's inhalation is smoother, and the user's inhalation experience is better.

[0009] The atomizer of the embodiments of the present application comprises a mounting seat, a cartridge tube and an atomizing core. The cartridge tube is connected with the mounting seat, and the cartridge tube is provided with a first air channel and a mounting cavity in communication. The atomizing core comprises a bracket and a heating body. The bracket is installed in the mounting seat and at least partially extends into the mounting cavity. The heating body is connected with the bracket and accommodated in the mounting cavity. At least one end of the atomizing core is provided with an oil storage groove in the length direction of the atomizer, and the oil storage groove is in communication with the first air channel.

[0010] The aerosol generating device of the embodiments of the present application comprises a battery assembly and an atomizer, and the atomizer is electrically connected with the battery assembly. The atomizer comprises a mounting seat, a cartridge tube and an atomizing core. The cartridge tube is connected with the mounting seat, and the cartridge tube is provided with a first air channel and a mounting cavity in communication. The atomizing core comprises a bracket and a heating body. The bracket is installed in the mounting seat and at least partially extends into the mounting cavity. The heating body is connected with the bracket and accommodated in the mounting cavity. At least one end of the atomizing core is provided with an oil storage groove in the length direction of the atomizer, and the oil storage groove is in communication with the first air channel.

[0011] In the atomizer and the aerosol-generating device of the above-mentioned embodiments of the present application, at least one end of the atomizing core is provided with the oil storage groove in the length direction of the atomizer. When the user smokes, the oil storage groove can store the aerosol-generating substrate flowing out of the heating body, so as to effectively avoid the aerosol-generating substrate on the heating body flowing to the first air channel and / or the second air channel of the atomizer, and the first air channel and / or the second air channel of the atomizer are not easy to be blocked. Compared with the current atomizer, the present application can effectively avoid the aerosol-generating substrate blocking the first air channel and / or the second air channel of the atomizer, and also does not reduce the generation amount of aerosol, the user's smoking taste is better, and the user's smoking is more smooth.

[0012] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0014] Fig. 1 is a structural schematic diagram of an aerosol-generating device according to some embodiments of the present application;

[0015] Fig. 2 is a perspective schematic diagram of an atomizer according to some embodiments of the present application;

[0016] Fig. 3 is a perspective exploded schematic diagram of the atomizer shown in Fig. 2;

[0017] Fig. 4 is a cross-sectional schematic diagram of the atomizer shown in Fig. 2 in some embodiments;

[0018] Fig. 5 is a perspective schematic diagram of a partial structure of the atomizer shown in Fig. 4;

[0019] Fig. 6 is a cross-sectional schematic diagram of a first seal in the atomizer shown in Fig. 4;

[0020] Fig. 7 is a cross-sectional schematic diagram of the atomizer shown in Fig. 2 in other embodiments;

[0021] Fig. 8 is a perspective schematic diagram of a partial structure of the atomizer shown in Fig. 7;

[0022] Fig. 9 is a cross-sectional schematic diagram of a first seal in the atomizer shown in Fig. 7

[0023] Fig. 10 is a cross-sectional schematic diagram of the atomizer shown in Fig. 2 in still other embodiments;

[0024] Fig. 11 is an enlarged schematic diagram of the atomizer shown in Fig. 10 in XI position;

[0025] Fig. 12 is a cross-sectional view of a heater in the atomizer shown in Fig. 2;

[0026] Fig. 13 is a perspective view of a bracket in the atomizer shown in Fig. 2. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the 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. However, the present application can be practiced in a number of different ways without the specific details described herein, and it is understood that similar improvements and modifications can be made thereto without departing from the scope of the present application. It is also to be understood that the terminology used herein is for the purpose of describing the present application only and is not intended to be limiting.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. 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 explicitly specified and limited.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, 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 explicitly 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.

[0031] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature "under", "below" and "underneath" the second feature can be directly below or obliquely below the second feature, or simply indicate that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical", "horizontal", "up", "down", "left", "right", and the like used herein are for illustrative purposes only and are not intended to be the only implementation.

[0033] In the case where the aerosol-generating device includes a cylindrical heating element, the center of the cylindrical heating element can be provided with an atomization cavity. At this time, the atomization cavity can correspond to and communicate with both the first air passage (upper end air passage) and the second air passage (lower end air passage), the flow path of the aerosol is relatively short, and the user can quickly suck the aerosol. However, when the user inhales, the aerosol generating substrate near the heating element is easily leaked into the first air passage and / or the second air passage, resulting in clogging of the first air passage and / or the second air passage, and the aerosol cannot flow out of the aerosol-generating device through the air passage. To solve this problem, the present application provides an atomizer 100 (shown in FIG. 2) and an aerosol-generating device 1000 (shown in FIG. 1).

[0034] Referring to FIGS. 1 and 2, the aerosol-generating device 1000 of the present application includes a battery assembly 300 and an atomizer 100, and the atomizer 100 is electrically connected to the battery assembly 300.

[0035] The aerosol-generating device 1000 is a structure capable of generating an aerosol by heating an aerosol-generating substrate. The aerosol can be visible or invisible and can include a vapor (e.g., fine particulate matter in a gaseous state, which is usually a liquid or solid at room temperature) as well as gas and liquid droplets of condensed vapor. The aerosol-generating substrate is an article that is processed and capable of generating an aerosol after being heated. The aerosol-generating substrate can be in a liquid state, or in a full solid state or a semi-solid state. In the case of the aerosol-generating substrate being in a liquid state, the liquid aerosol-generating substrate is a mixed liquid in which nicotine and tobacco, etc. are dissolved, and the solute is a common organic and / or inorganic solute such as propylene glycol, vegetable glycerin, and pure water. In the case of the aerosol-generating substrate being in a full solid state, the aerosol-generating substrate can be prepared in a roll-pressing, thick paste, die-casting, extrusion, etc. In the present application, the aerosol-generating substrate can be high-viscosity tobacco oil (e.g., sesame oil, etc.), which is capable of generating an aerosol when heated.

[0036] The battery assembly 300 is used to supply power to the atomizer 100. The atomizer 100 is used to load the aerosol-generating substrate and heat the aerosol-generating substrate when powered. When the battery assembly 300 supplies power to the atomizer 100, the atomizer 100 can heat the aerosol-generating substrate to generate an aerosol for a user to inhale. The atomizer 100 can heat the aerosol-generating substrate by resistance heating, microwave heating, or laser irradiation heating, but is not limited thereto.

[0037] Referring to FIGS. 2 to 4, the atomizer 100 of the present application includes a storage member 10, a cartridge tube 20, a heating body 33, and a sealing member 40. The storage member 10 is provided with a loading cavity 11 for loading the aerosol-generating substrate. The cartridge tube 20 is installed in the loading cavity 11, and the cartridge tube 20 is provided with a mounting cavity 231 and a first air passage 211, both of which are in communication with the loading cavity 11. The heating body 33 is installed in the mounting cavity 231, and the heating body 33 is provided with an atomizing cavity 331 penetrating through opposite ends, the atomizing cavity 331 being in communication with the first air passage 211. The sealing member 40 is installed in the mounting cavity 231 and located between the cartridge tube 20 and the heating body 33, and the side of the sealing member 40 facing the atomizing cavity 331 is provided with a hidden oil groove 41, the hidden oil groove 41 being in communication with the atomizing cavity 331.

[0038] Specifically, the storage member 10 is a structure for storing the aerosol-generating substrate. The cross-sectional shape of the storage member 10 can be, but is not limited to, a circle, an ellipse, a triangle, a quadrilateral, or other polygons, etc. The loading cavity 11 is used for loading the aerosol-generating substrate therein, and the loading cavity 11 is also used for installing the cartridge tube 20 therein.

[0039] Referring to FIGS. 3 and 4, the cartridge tube 20 is used to mount the heating element 33 and to guide the aerosol out of the atomizer 100 for the user to draw. Preferably, the cartridge tube 20 can be made of a high-temperature resistant material. For example, the cartridge tube 20 can be made of metal or ceramic, so that the cartridge tube 20 is not easily damaged when the heating element 33 generates heat, and the cartridge tube 20 can also guide the high-temperature aerosol, and the service life of the cartridge tube 20 is longer. Since the aerosol generated by the aerosol generating substrate will contact the inner wall of the cartridge tube 20, preferably, the cartridge tube 20 can be made of food-grade stainless steel. The mounting cavity 231 is used for mounting the heating element 33 and the sealing member 40 therein. In the case that the mounting cavity 231 is in communication with the loading cavity 11, the aerosol generating substrate in the loading cavity 11 can enter the mounting cavity 231 to be heated by the heating element 33 to generate aerosol. The first air passage 211 is used for the aerosol generated in the mounting cavity 231 to flow out of the atomizer 100 for the user to draw.

[0040] Referring to FIGS. 3 and 4, the heating element 33 is a structure that can generate heat when powered. The heating element 33 heats the aerosol generating substrate located near the heating element 33 by generating heat, and the heated aerosol generating substrate can generate aerosol. In some embodiments, the heating element 33 can include a heating body 335, a heating wire 337, a first lead wire 37, and a second lead wire 39. The heating wire 337 is embedded in the heating body 335, and the heating wire 337 can generate heat when powered. One end of the first lead wire 37 is electrically connected to one electrode (positive or negative) of the heating wire 337, and the other end of the second lead wire 39 is electrically connected to the other electrode (negative or positive) of the heating wire 337. The first lead wire 37 and the second lead wire 39 are both electrically connected to the battery assembly 300.

[0041] The heating body 335 can be a porous ceramic material. The porous ceramic is usually prepared by mixing ceramic slurry with a pore-forming agent and then injection molding and sintering. The sintered ceramic body has a large number of micropores. The aerosol generating substrate entering the mounting cavity 231 can enter the interior of the porous ceramic through the micropores. When the user draws the aerosol generating device 1000, the battery assembly 300 supplies power to the heating wire 337 through the first lead wire 37 and the second lead wire 39. The heating wire 337 generates heat when powered, thereby heating the surface of the heating body 335 and the aerosol generating substrate entering the micropores, so that the aerosol generating substrate can generate aerosol.

[0042] The heating element 33 of the present application is generally cylindrical in structure, and the center of the heating body 335 is provided with an atomization cavity 331. In the case that the heating wire 337 heats the surface of the heating body 335 and the aerosol generating substrate in the interior of the heating body 335, the aerosol generated by the aerosol generating substrate will enter the atomization cavity 331. When the user draws, the aerosol in the atomization cavity 331 can flow out of the atomizer 100 through the first air passage 211.

[0043] Referring to FIGS. 3 and 4, in some embodiments, the atomizer 100 further comprises a mounting seat 50 and an electrical connector 70, the mounting seat 50 is connected with the storage member 10 and the cartridge tube 20, and the electrical connector 70 is mounted on the mounting seat 50. The electrical connector 70 is provided with a second air channel 73, which is in communication with the atomization cavity 331. The second air channel 73 is used for allowing external air to enter. When a user inhales, the external air enters the second air channel 73 through the battery assembly 300, and then enters the atomization cavity 331 from the second air channel 73. The gas and the aerosol in the atomization cavity 331 pass through the first air channel 211 together and flow out of the atomizer 100, so as to be inhaled by the user. The first air channel 211, the atomization cavity 331 and the second air channel 73 of the present application correspond to and communicate with each other. When a user inhales, the external air can quickly enter the atomization cavity 331 through the second air channel 73, and carry the aerosol to flow out of the atomizer 100 through the first air channel 211. The flow path of the gas is relatively short, the aerosol can quickly flow out of the atomizer 100, and the user's inhalation experience is better.

[0044] Referring to FIGS. 3 and 4, the sealing member 40 is used to seal the gap between the heating body 33 and the cartridge tube 20, so that the aerosol generating substrate entering the mounting cavity 231 can be prevented from flowing out of the first air channel 211 and / or the second air channel 73 through the gap between the heating body 33 and the cartridge tube 20, so as to block the first air channel 211 and / or the second air channel 73. The sealing member 40 can be made of rubber, silicone, plastic or synthetic fiber, etc. Among them, the rubber material includes but is not limited to natural rubber, butyl rubber, fluororubber, polyurethane rubber, ethylene propylene diene rubber or silicone rubber, etc.

[0045] Since the heating body 33 is a porous ceramic material, when a user inhales, the aerosol generating substrate in the micropores of the heating body 33 may leak out to block the first air channel 211 and / or the second air channel 73, so that the user cannot continue to inhale. The oil storage groove 41 of the present application is used to store the aerosol generating substrate leaked from the heating body 33, so that the problem of blocking the first air channel 211 and / or the second air channel 73 caused by the aerosol generating substrate entering the first air channel 211 and / or the second air channel 73 can be avoided.

[0046] When the sealing member 40 is connected with the upper end of the heating body 33 and the oil storage groove 41 is located at the upper end of the heating body 33, the oil storage groove 41 is used to store the aerosol generating substrate leaked from the upper end of the heating body 33, so that the problem of blocking the first air channel 211 caused by the aerosol generating substrate can be avoided. When the sealing member 40 is connected with the lower end of the heating body 33 and the oil storage groove 41 is located at the lower end of the heating body 33, the oil storage groove 41 is used to store the aerosol generating substrate leaked from the lower end of the heating body 33, so that the problem of blocking the second air channel 73 caused by the aerosol generating substrate can be avoided.

[0047] Since the oil storage groove 41 is adjacent to the heating body 33, the temperature in the oil storage groove 41 is relatively high, and the aerosol generating substrate (high-viscosity hemp oil) entering the oil storage groove 41 will not cause the viscosity to decrease (flowability to become poor) due to the relatively low temperature, and the aerosol generating substrate in the oil storage groove 41 can maintain good flowability. After the user finishes smoking, the aerosol generating substrate in the oil storage groove 41 can be sucked back into the heating body 33 again due to the negative pressure in the installation cavity 231, and the aerosol generating substrate entering the heating body 33 again can be heated by the heating wire 337. By providing the oil storage groove 41 on the sealing element 40, the aerosol generating substrate can be effectively prevented from entering the first air channel 211 and / or the second air channel 73, so as to avoid the problem that the temperature of the aerosol generating substrate in the first air channel 211 and / or the second air channel 73 is relatively low, causing the viscosity of the aerosol generating substrate (high-viscosity hemp oil) to increase and block the first air channel 211 and / or the second air channel 73.

[0048] In the atomizer 100 of the embodiments of the present application, when the user smokes, a small part of the aerosol generating substrate in the heating body 33 can leak, and the aerosol generating substrate leaking from the heating body 33 can be stored in the oil storage groove 41. After the user finishes smoking, the aerosol generating substrate in the oil storage groove 41 can be sucked back into the heating body 33 again, so as to avoid the problem that the aerosol generating substrate leaking from the heating body 33 enters the air channel to block the air channel, and the aerosol can smoothly flow out of the atomizer 100, the user's smoking is relatively smooth, and the user's smoking experience is good.

[0049] The atomizer 100 will be further described below in combination with the accompanying drawings.

[0050] Please refer to FIG. 3 and FIG. 4, in some embodiments, the cartridge tube 20 includes a first sub-portion 21 and a second sub-portion 23 connected together, the first sub-portion 21 is provided with a first air channel 211, and the second sub-portion 23 is provided with an installation cavity 231, a through hole 233 is arranged on the peripheral wall of the second sub-portion 23, and the through hole 233 communicates the loading cavity 11 and the installation cavity 231.

[0051] The perforations 233 are used for the aerosol generating substrate in the loading cavity 11 to enter the installation cavity 231, so that the aerosol generating substrate can enter the micropores of the heating body 335 to be heated by the heating wire 337. Preferably, the perforations 233 can correspond to the peripheral wall of the heating body 33, so that the aerosol generating substrate in the loading cavity 11 can quickly enter the heating body 335 after passing through the perforations 233, and the inside of the heating body 335 can be kept with aerosol generating substrate all the time, which can avoid the problem of burning of the heating body 335 due to lack of aerosol generating substrate inside. The number of perforations 233 can be one, two, three, four or more. In the case of multiple perforations 233, more aerosol generating substrate can enter the inside of the heating body 335 per unit time through the perforations 233, which can further avoid the problem of burning of the heating body 335 due to lack of aerosol generating substrate inside.

[0052] The first sub-part 21 is used to guide the aerosol in the installation cavity 231 to flow out of the atomizer 100, and the second sub-part 23 is used to install the heating body 33 and the sealing member 40. The first sub-part 21 and the second sub-part 23 can be an integral structure or a split structure. In the case of an integral structure, the first sub-part 21 and the second sub-part 23 can be integrally formed, and the processing steps of the cartridge tube 20 are relatively simple. In the case of a split structure, the first sub-part 21 and the second sub-part 23 can be detachably or non-detachably connected. The detachable installation methods include but are not limited to threaded connection, screw connection or buckle connection, etc. The non-detachable installation methods include but are not limited to welding, adhesive connection or interference fit, etc.

[0053] Please refer to FIG. 4 and FIG. 6. In some embodiments, the sealing member 40 includes a peripheral wall 42 and a top wall 43 connected to the peripheral wall 42, at least part of the peripheral wall 42 of the sealing member 40 is sleeved on the heating body 33, the top wall 43 of the sealing member 40 is spaced from the end of the heating body 33, and the top wall 43 and the peripheral wall 42 of the sealing member 40 jointly form the oil storage groove 41. At this time, the structure of the sealing member 40 is relatively simple, and the processing is relatively simple.

[0054] Please refer to FIG. 4 to FIG. 6. In some embodiments, the sealing member 40 further includes at least two protruding parts 45 spaced from each other, the protruding parts 45 protrude and extend from the inside of the peripheral wall 42 towards the center of the atomizing cavity 331, the protruding parts 45 are connected with the top wall 43 and abut against the end of the heating body 33, and the at least two protruding parts 45, the top wall 43 and the peripheral wall 42 jointly form at least two oil storage grooves 41.

[0055] The number of the protrusions 45 can be, but is not limited to, two, three, four or more, and the plurality of protrusions 45 can be arranged on the inner side of the peripheral wall 42 of the sealing member 40. The number of the oil storage grooves 41 can be, but is not limited to, two, three, four or more. In the case where the sealing member 40 comprises the protrusions 45, when the protrusions 45 abut against the end of the heat-generating body 33 during the connection of the sealing member 40 and the heat-generating body 33, it can be indicated that the sealing member 40 is installed in place. The protrusions 45 can play a better positioning role for the installation of the sealing member 40, and the installation between the sealing member 40 and the heat-generating body 33 is relatively simple and fast.

[0056] Please refer to FIGS. 7-9, further, in some embodiments, the sealing member 40 is further provided with a liquid guide groove 47, the liquid guide groove 47 is in communication with the oil storage groove 41, and the liquid guide groove 47 corresponds to the peripheral wall 42 of the heat-generating body 33.

[0057] Specifically, in some embodiments, the inner side of the peripheral wall 42 of the sealing member 40 is recessed in a direction away from the center of the atomization cavity 331 to form a liquid guide groove 47, one end of the liquid guide groove 47 is in communication with the oil storage groove 41 in the length direction H of the atomizer 100, the side wall of the liquid guide groove 47 is spaced from the heat-generating body 33, and the peripheral wall 42 of the sealing member 40 on the side opposite to the oil storage groove 41 abuts against the heat-generating body 33.

[0058] In some embodiments, the number of the liquid guide grooves 47 is the same as that of the oil storage grooves 41. In other embodiments, the number of the liquid guide grooves 47 is different from that of the oil storage grooves 41. The oil storage groove 41 is located at the end of the heat-generating body 33, and after the aerosol generating substrate in the heat-generating body 33 enters the oil storage groove 41 during user puffing, the aerosol generating substrate in the oil storage groove 41 flows towards the liquid guide groove 47. After the user finishes puffing, the aerosol generating substrate in the oil storage groove 41 is sucked back by the heat-generating body 33 from the end of the heat-generating body 33, and the aerosol generating substrate in the liquid guide groove 47 is sucked back by the heat-generating body 33 from the peripheral wall 42 of the heat-generating body 33, that is, the contact area of the aerosol generating substrate with the surface of the heat-generating body 33 is large, thereby accelerating the back-suction efficiency of the aerosol generating substrate and further reducing the risk of the aerosol generating substrate blocking the first air passage 211 and / or the second air passage 73.

[0059] The peripheral wall 42 of the sealing member 40 away from the heat-generating body 33 abuts against the heat-generating body 33, at this time the liquid guide groove 47 is not in communication with the installation cavity 231, and the aerosol generating substrate in the liquid guide groove 47 can be quickly sucked back by the heat-generating body 33, so that the heat-generating body 33 can keep the state of having aerosol generating substrate all the time, and the problem of burning the inside of the heat-generating body 335 due to lack of aerosol generating substrate can be avoided.

[0060] Referring to FIGS. 4 and 7, in some embodiments, the sealing member 40 includes a first sealing member 48 located between the second sub-portion 23 near the first sub-portion 21 and the heating element 33. The first sealing member 48 is configured to block the aerosol generating substrate entering the installation cavity 231 from the through hole 233 from flowing into the first air passage 211 through the gap between the second sub-portion 23 near the first sub-portion 21 and the heating element 33, thereby preventing the aerosol generating substrate from flowing out of the first air passage 211 to the outside of the atomizer 100 and preventing the aerosol generating substrate from accumulating in the first air passage 211 to block the first air passage 211.

[0061] Referring to FIGS. 4 to 6, in one embodiment, the first sealing member 48 is provided with only the oil storage groove 41. At this time, the structure of the first sealing member 48 is relatively simple, and the processing is relatively simple. When the user inhales, a portion of the aerosol generating substrate in the heating element 33 can flow out to the outside of the heating element 33 (the upper end portion of the heating element 33) in the direction of the first air passage 211 due to the suction negative pressure. The aerosol generating substrate flowing to the upper end portion of the heating element 33 can be stored in the oil storage groove 41. At this time, the top wall of the heating element 33 can block the aerosol generating substrate in the oil storage groove 41, thereby effectively preventing the aerosol generating substrate in the oil storage groove 41 from flowing to the first air passage 211 when the user inhales, and further preventing the aerosol generating substrate from entering the first air passage 211. After the user finishes inhaling, the aerosol generating substrate in the oil storage groove 41 is sucked back into the heating element 33, and the portion of the aerosol generating substrate can be heated by the heating element 33 to generate aerosol.

[0062] Referring to FIGS. 7 to 9, in another embodiment, the first sealing member 48 is provided with the oil storage groove 41 and the liquid guide groove 47. At this time, the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47 can be quickly sucked back by the heating element 33, and the suction efficiency of the aerosol generating substrate is relatively high. When the user inhales, a portion of the aerosol generating substrate in the heating element 33 can flow out to the outside of the heating element 33 (the upper end portion of the heating element 33) in the direction of the first air passage 211 due to the suction negative pressure. The aerosol generating substrate flowing to the upper end portion of the heating element 33 can be stored in the oil storage groove 41 and the liquid guide groove 47. At this time, the top wall of the heating element 33 can block the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47, thereby effectively preventing the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47 from flowing to the first air passage 211 when the user inhales, and further preventing the aerosol generating substrate from blocking the first air passage 211. After the user finishes inhaling, the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47 is sucked back into the heating element 33, and the portion of the aerosol generating substrate can be heated by the heating element 33 to generate aerosol.

[0063] Referring to FIG. 3, FIG. 4 and FIG. 7, in some embodiments, the atomizer 100 further comprises a bracket 31, the bracket 31 is installed in the mounting seat 50, and the storage member 10 and the second sub-portion 23 are connected with the mounting seat 50.

[0064] The mounting seat 50 is used to support the cartridge tube 20, the heating body 33, the sealing member 40 and the like. The outer side surface of the upper end of the mounting seat 50 is connected with the inner side wall of the storage member 10, and the outer side surface of the lower end of the mounting seat 50 is provided with threads. The mounting seat 50 is connected with the battery assembly 300 through the threads, so that the atomizer 100 and the battery assembly 300 are stably connected.

[0065] The atomizer 100 further comprises a first decorative member 90, the first decorative member 90 is sleeved on the outer wall of the storage member 10 and the mounting seat 50. The first decorative member 90 is used to cover the connection position between the storage member 10 and the mounting seat 50, so as to improve the appearance of the atomizer 100. The first decorative member 90 is made of metal material, so as to further improve the appearance of the atomizer 100. Preferably, the first decorative member 90 is in interference fit with the storage member 10 and the mounting seat 50, so that the storage member 10 and the mounting seat 50 are stably connected, and the connection between the storage member 10 and the mounting seat 50 is prevented from loosening.

[0066] Referring to FIG. 3, FIG. 4 and FIG. 7, at least part of the second sub-portion 23 of the cartridge tube 20 extends into the mounting seat 50, and the second sub-portion 23 is in interference fit with the inner side surface of the mounting seat 50. At this time, the connection between the second sub-portion 23 and the mounting seat 50 is relatively stable. The inner side surface of the mounting seat 50 is provided with a groove 51, and the inner side surface of the mounting seat 50 and the second sub-portion 23 jointly form an air exchange channel 53, the air exchange channel 53 is communicated with the loading cavity 11. The bracket 31 is used to support the second sealing member 49 of the atomizer 100. The bracket 31 can be provided with a through hole and a gas guide groove, the through hole is communicated with the second air channel 73, and the gas guide groove is communicated with the through hole and the air exchange channel 53. When a user smokes, external air enters the second air channel 73 through the battery assembly 300, part of the air enters the air exchange channel 53 through the through hole and the gas guide groove, and the air in the air exchange channel 53 enters the loading cavity 11 to balance the air pressure in the loading cavity 11, so that the aerosol generating substrate in the loading cavity 11 can smoothly flow into the mounting cavity 231 through the perforations 233.

[0067] Referring to FIG. 3, FIG. 4 and FIG. 7, further, in some embodiments, the sealing member 40 further comprises a second sealing member 49, the second sealing member 49 is located between the heating body 33 and the bracket 31.

[0068] The second seal 49 is used to block the aerosol generating substrate from entering the installation cavity 231 from the through hole 233, flowing into the second air passage 73 through the gap between the heating body 33 and the support 31, so as to avoid the aerosol generating substrate from flowing into the inside of the battery assembly 300 from the second air passage 73, and also avoid the problem of the aerosol generating substrate accumulating in the second air passage 73 to block the second air passage 73. The second seal 49 can be sleeved on the lower end of the heating body 33, that is, part of the structure of the second seal 49 can be located between the heating body 33 and the second sub-portion 23, and the other part of the structure of the second seal 49 can be located between the heating body 33 and the support 31, so that the second seal 49 can further block the aerosol generating substrate in the installation cavity 231 from flowing into the second air passage 73.

[0069] Please refer to FIGS. 4-6, in an embodiment, the second seal 49 is only provided with the oil storage groove 41. At this time, the structure of the second seal 49 is relatively simple, and the processing is relatively simple. A part of the aerosol generating substrate in the heating body 33 can flow out to the outside of the heating body 33 (the lower end of the heating body 33) in the direction of the second air passage 73 due to gravity, and the aerosol generating substrate flowing to the lower end of the heating body 33 can be stored in the oil storage groove 41. At this time, the end of the second seal 49 can play a certain blocking effect on the aerosol generating substrate in the oil storage groove 41, so that when the user smokes, the aerosol generating substrate in the oil storage groove 41 can be effectively prevented from flowing to the second air passage 73, so that the problem of the aerosol generating substrate blocking the second air passage 73 can be further avoided. After the user finishes smoking, the aerosol generating substrate in the oil storage groove 41 can be sucked back into the inside of the heating body 33, and this part of the aerosol generating substrate can be heated by the heating body 33 to generate aerosol.

[0070] Please refer to FIGS. 7-9, in another embodiment, the second seal 49 is provided with the oil storage groove 41 and the liquid guide groove 47. At this time, the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47 can be quickly sucked back by the heating body 33, and the suction efficiency of the aerosol generating substrate is relatively high. When the user smokes, a part of the aerosol generating substrate in the heating body 33 can flow out to the outside of the heating body 33 (the lower end of the heating body 33) in the direction of the second air passage 73 due to gravity, and the aerosol generating substrate flowing to the lower end of the heating body 33 can be stored in the oil storage groove 41 and the liquid guide groove 47. At this time, the end of the second seal 49 can play a certain blocking effect on the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47, so that when the user smokes, the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47 can be effectively prevented from flowing to the second air passage 73, so that the problem of the aerosol generating substrate blocking the second air passage 73 can be further avoided. After the user finishes smoking, the aerosol generating substrate in the oil storage groove 41 and the liquid guide groove 47 can be sucked back into the inside of the heating body 33, and this part of the aerosol generating substrate can be heated by the heating body 33 to generate aerosol.

[0071] In other embodiments, the second seal 49 can not be provided with the oil storage groove 41 and the liquid guide groove 47, and the second seal 49 is only sleeved on the lower end of the heating body 33 to block the aerosol generating substrate in the installation cavity 231 from flowing into the second air passage 73. At this time, the structure of the second seal 49 is simpler, and the processing is more convenient.

[0072] Please refer to FIGS. 3, 4 and 7, in some embodiments, the mounting seat 50 can be conductive, and the electrical connector 70 is mounted in the mounting seat 50 through the insulating fixing member 71, the mounting seat 50 is connected with one electrode of the heating body 33, and the electrical connector 70 is connected with the other electrode of the heating body 33.

[0073] The mounting seat 50 can be made of conductive materials, including but not limited to conductive metal materials and conductive carbon materials. The conductive metal materials can include copper, aluminum, iron, silver and the like, and the conductive carbon materials can include graphite, carbon black and carbon fiber and the like. The mounting seat 50 and the electrical connector 70 are respectively electrically connected with the positive electrode and the negative electrode of the battery assembly 300, the mounting seat 50 is electrically connected with one electrode (positive electrode or negative electrode) of the heating wire 337 through the first lead wire 37, and the electrical connector 70 is electrically connected with the other electrode (negative electrode or positive electrode) of the heating wire 337 through the second lead wire 39, to form a current loop. When the user inhales, the electric energy of the battery assembly 300 enters the heating wire 337 through the current loop, so that the heating wire 337 can generate heat to heat the aerosol generating substrate.

[0074] The fixing member 71 is used to fix the electrical connector 70 to be mounted in the mounting seat 50. Since the electrical connector 70 and the mounting seat 50 are both made of conductive materials, the fixing member 71 is also used to separate the electrical connector 70 and the mounting seat 50, and the fixing member 71 can be made of non-conductive materials, so as to avoid the problem of short circuit caused by contact between the electrical connector 70 and the mounting seat 50.

[0075] Please refer to FIGS. 3, 4 and 7, further, in some embodiments, the atomizer 100 further comprises a suction nozzle 80 and a third seal 81, the suction nozzle 80 is connected with the end of the storage member 10 away from the mounting seat 50, the suction nozzle 80 is provided with a third air passage 83, and the third air passage 83 is in communication with the first air passage 211. The third seal 81 is arranged between the storage member 10 and the suction nozzle 80, and is used to seal the gap between the storage member 10 and the suction nozzle 80.

[0076] Specifically, in the case that the user sucks the aerosol-generating device 1000, the battery assembly 300 supplies power to the atomizer 100, and the user sucks the aerosol generated in the atomizer 100 through the mouthpiece 80. In the case that the user sucks, the external air enters the aerosol-generating device 1000 from the battery assembly 300, the air enters the second air passage 73 from the battery assembly 300, the air in the second air passage 73 enters the atomization cavity 331, the air carrying the aerosol in the atomization cavity 331 flows into the third air passage 83 from the first air passage 211, and flows out of the third air passage 83 to the outside of the aerosol-generating device 1000 for the user to suck.

[0077] The first sub-part 21 of the present application extends into the third air passage 83, and the first sub-part 21 cooperates with the inner wall of the third air passage 83 to communicate the first air passage 211 with the third air passage 83. The installation of the first sub-part 21 is relatively stable, and the first sub-part 21 can be prevented from shaking in the loading cavity 11. Preferably, the peripheral wall of the first sub-part 21 is provided with a protrusion 213, which can be in interference fit with the inner wall of the third air passage 83. Thus, the aerosol can be effectively prevented from overflowing from the gap between the first air passage 211 and the third air passage 83, the waste of aerosol can be avoided, and the user's smoking experience is better. In addition, when the first sub-part 21 is in interference fit with the inner wall of the third air passage 83, the suction resistance between the first air passage 211 and the third air passage 83 can be reduced in the case that the user sucks, and the user's smoking is relatively smooth.

[0078] The third seal 81 is used to block the aerosol-generating substrate in the loading cavity 11 from entering the third air passage 83 or even flowing out of the atomizer 100 from the gap between the storage member 10 and the mouthpiece 80. The waste of aerosol-generating substrate can be effectively avoided, and the user's experience is also better. The material of the third seal 81 can be, but is not limited to, rubber, silicone, plastic, or synthetic fiber, etc.

[0079] Please refer to FIG. 3, FIG. 4 and FIG. 7, in some embodiments, the atomizer 100 can further include a second decorative piece 91, which is sleeved on the outer wall of the mouthpiece 80 and the outer wall of the storage member 10. The second decorative piece 91 is used to cover the connection position of the storage member 10 and the mouthpiece 80 to improve the aesthetics of the atomizer 100. The second decorative piece 91 of the present application is made of metal material, which can further improve the aesthetics of the atomizer 100. The second decorative piece 91 can be in interference fit with the mouthpiece 80 and the storage member 10, so that the connection between the storage member 10 and the mouthpiece 80 is relatively stable, and the problem of looseness between the storage member 10 and the mouthpiece 80 can be avoided.

[0080] As mentioned above, the aerosol generating substrate near the heating element is prone to leak into the first air passage and / or the second air passage, which can cause the first air passage and / or the second air passage to be blocked. The current heating element usually has cotton wrapped around the surface of the heating element to prevent liquid leakage. However, wrapping cotton around the surface of the heating element can reduce the amount of aerosol generated, and the user's smoking experience is also poor.

[0081] To solve this problem, referring to FIGS. 3 and 10, the atomizer 100 of some embodiments of the present application includes a mounting seat 50, a cartridge tube 20, and an atomizing core 30. The cartridge tube 20 is connected to the mounting seat 50, and the cartridge tube 20 is provided with a first air passage 211 and a mounting cavity 231 that are in communication. The atomizing core 30 includes a bracket 31 and a heating element 33. The bracket 31 is mounted to the mounting seat 50 and at least partially extends into the mounting cavity 231. The heating element 33 is connected to the bracket 31 and is received in the mounting cavity 231. At least one end of the atomizing core 30 is provided with an oil collecting groove 35 in the length direction H of the atomizer 100. The oil collecting groove 35 is in communication with the first air passage 211.

[0082] Referring to FIGS. 3 and 10, in particular, the mounting seat 50 is a structure for mounting and supporting the cartridge tube 20 and the atomizing core 30. The outer side of the lower end of the mounting seat 50 is provided with threads. The mounting seat 50 is connected to the battery assembly 300 through the threads, so that the atomizer 100 and the battery assembly 300 can be stably connected.

[0083] The cartridge tube 20 is used to mount and fix the atomizing core 30 together with the mounting seat 50. The atomizing core 30 is used to heat the aerosol generating substrate, so that the aerosol generating substrate can generate aerosol for the user to smoke. The cartridge tube 20 is also used to guide the aerosol generated in the atomizing core 30 out of the atomizer 100 for the user to smoke. Preferably, the cartridge tube 20 can be made of a high-temperature-resistant material. For example, the cartridge tube 20 can be made of metal or ceramic material, so that the cartridge tube 20 is not easily damaged when the atomizing core 30 generates heat, and the cartridge tube 20 can also guide the high-temperature aerosol. The service life of the cartridge tube 20 is longer. The mounting cavity 231 is used to mount the heating element 33 of the atomizing core 30 therein. The aerosol generating substrate enters the mounting cavity 231 to be heated by the atomizing core 30. Since the aerosol generated by the aerosol generating substrate can contact the inner wall of the cartridge tube 20, preferably, the material of the cartridge tube 20 can be food-grade stainless steel. The first air passage 211 is used to guide the aerosol generated in the mounting cavity 231 to flow out of the atomizer 100 for the user to smoke.

[0084] Referring to FIGS. 3 and 10, the bracket 31 is used to support and fix the heating element 33, so that the heating element 33 can be stably located in the mounting cavity 231, which can effectively prevent the heating element 33 from shaking in the mounting cavity 231. The bracket 31 can be connected to the heating element 33 in abutment, and the bracket 31 can also be connected to the heating element 33 through the second seal 49 of the atomizer 100.

[0085] The heating element 33 is a structure that can generate heat when powered. The heating element 33 heats the aerosol generating substrate located near the heating element 33 by generating heat, and the heated aerosol generating substrate can generate an aerosol.

[0086] Referring to FIGS. 3, 10, and 12, in some embodiments, the heating element 33 includes a heating body 335, a heating wire 337, and two connection portions 339. The heating body 335 has a plurality of micropores inside. The heating wire 337 is embedded inside the heating body 335 and generates heat when powered. One end of the connection portion 339 is embedded inside the heating body 335, and the other end of the connection portion 339 extends from the heating body 335. One connection portion 339 is electrically connected to one electrode of the heating wire 337, and the other connection portion 339 is electrically connected to the other electrode of the heating wire 337.

[0087] The heating body 335 of the present application can be a porous ceramic material. The porous ceramic is usually prepared by mixing ceramic slurry with a pore former and then injection molding and sintering. The sintered ceramic body has a large number of micropores inside. The aerosol generating substrate entering the installation cavity 231 can enter the inside of the porous ceramic through the micropores. The micropores can be used to conduct and store the aerosol generating substrate. When the user sucks the aerosol generating device 1000, the heating wire 337 can heat the aerosol generating substrate in the micropores, so that the aerosol generating substrate can generate an aerosol.

[0088] In the case where the heating wire 337 is embedded inside the heating body 335, the strength of the heating wire 337 is high, and the heating wire 337 is not easy to be damaged. The heating wire 337 can effectively heat the aerosol generating substrate at various positions inside the heating body 335. Both connection portions 339 can be connected to the heating wire 337 by welding, so that both connection portions 339 can be electrically connected to the heating wire 337. In the case where one end of the connection portion 339 is embedded inside the heating body 335, the strength of the connection portion 339 can be enhanced, and the connection portion 339 is not easy to be damaged. In the case where one connection portion 339 is connected to the positive electrode of the heating wire 337, the other connection portion 339 is connected to the negative electrode of the heating wire 337. Both connection portions 339 are electrically connected to the battery assembly 300. When the user sucks, the current of the battery assembly 300 passes through the connection portion 339 to the heating wire 337, so that the heating wire 337 can generate heat to heat the aerosol generating substrate.

[0089] Referring to FIGS. 3-11, in some embodiments, the atomizer 100 further comprises an electrical connector 70 mounted to the mounting seat 50 and penetrating the support 31, the electrical connector 70 is provided with a second air passage 73, the second air passage 73 is in communication with the mounting cavity 231. When the user inhales, the second air passage 73 is used for the external gas to enter the atomizer 100 from the battery assembly 300, and the gas can carry the aerosol in the mounting cavity 231 to flow out of the atomizer 100 through the first air passage 211. In the length direction H of the atomizer 100, the first air passage 211 and the second air passage 73 are respectively located at opposite ends of the heating body 33, and the second air passage 73 is closer to the battery assembly 300 than the first air passage 211.

[0090] Since the heating body 33 is a porous ceramic material, when the user inhales, the aerosol generating substrate in the micropores of the heating body 33 can leak out to block the first air passage 211 and / or the second air passage 73, causing the user to be unable to continue to inhale. The oil collection groove 35 of the present application is used for storing the aerosol generating substrate leaked from the inside of the heating body 335, thereby avoiding the problem of the aerosol generating substrate entering the first air passage 211 and / or the second air passage 73 and blocking the first air passage 211 and / or the second air passage 73.

[0091] Referring to FIGS. 10 and 11, in the length direction H of the atomizer 100, the atomizing core 30 comprises opposite ends. In one embodiment, one end of the atomizing core 30 away from the battery assembly 300 is provided with an oil collection groove 35. At this time, the oil collection groove 35 can be provided at one end of the heating body 33 away from the support 31. When the user inhales, part of the aerosol generating substrate in the heating body 335 will flow out of the end of the heating body 335 and flow in the direction of the first air passage 211. The part of the aerosol generating substrate flowing out of the heating body 33 can be stored in the oil collection groove 35, thereby effectively avoiding the part of the aerosol generating substrate flowing into the first air passage 211 to avoid the problem of the first air passage 211 being blocked. Since the oil collection groove 35 is provided at one end of the heating body 33, the temperature in the oil collection groove 35 is higher, and the aerosol generating substrate (high-viscosity tar oil) entering the oil collection groove 35 will not cause the viscosity to decrease (flowability to become poor) due to the lower temperature, and the aerosol generating substrate in the oil collection groove 35 can maintain good flowability. After the user finishes inhaling, the aerosol generating substrate in the oil collection groove 35 can be sucked back into the inside of the heating body 335 due to the negative pressure in the mounting cavity 231, and the aerosol generating substrate entering the inside of the heating body 33 again can be heated by the heating wire 337. In the case where the oil collection groove 35 is provided at one end of the atomizing core 30 away from the battery assembly 300, the structure of the atomizing core 30 is relatively simple, and the problem of the aerosol generating substrate flowing into the first air passage 211 can be effectively avoided.

[0092] Referring to FIGS. 10 and 11, in another embodiment, the end of the atomizing core 30 close to the battery assembly 300 is provided with an oil collecting groove 35. At this time, the oil collecting groove 35 can be provided on the support 31. When the user inhales, part of the aerosol generating substrate in the heating body 335 will flow out of the bottom end of the heating body 335 due to gravity and flow in the direction of the second air passage 73. The part of the aerosol generating substrate flowing out of the heating body 33 can be stored in the oil collecting groove 35, thereby effectively preventing the part of the aerosol generating substrate from flowing into the second air passage 73 to avoid the problem of clogging of the second air passage 73. Since the support 31 is connected to the heating body 33, the oil collecting groove 35 is close to the heating body 33, and the temperature in the oil collecting groove 35 is high, the aerosol generating substrate (high-viscosity tar oil) entering the oil collecting groove 35 will not reduce the viscosity (become poor in flowability) due to the low temperature, and the aerosol generating substrate in the oil collecting groove 35 can maintain good flowability. After the user finishes inhaling, the aerosol generating substrate in the oil collecting groove 35 can be sucked back into the heating body 335 due to the negative pressure in the installation cavity 231, and the aerosol generating substrate entering the heating body 33 again can be heated by the heating wire 337. In the case where the end of the atomizing core 30 close to the battery assembly 300 is provided with the oil collecting groove 35, the structure of the atomizing core 30 is relatively simple, and the problem of the aerosol generating substrate flowing into the second air passage 73 can be effectively avoided.

[0093] Referring to FIGS. 10 and 11, in still another embodiment, in the length direction H of the atomizer 100, the opposite ends of the atomizing core 30 are both provided with the oil collecting groove 35. At this time, the heating body 33 and the support 31 can both be provided with the oil collecting groove 35. In the case where the opposite ends of the atomizing core 30 are both provided with the oil collecting groove 35, the aerosol generating substrate in the heating body 335 can be effectively prevented from flowing into the first air passage 211 and the second air passage 73, and the first air passage 211 and the second air passage 73 are both less likely to be clogged, and the user's inhalation is smoother.

[0094] In the atomizer 100 of the present embodiment, in the case where at least one end of the atomizing core 30 is provided with the oil collecting groove 35 in the length direction H of the atomizer 100, the oil collecting groove 35 can store the aerosol generating substrate flowing out of the heating body 33 when the user inhales, thereby effectively preventing the aerosol generating substrate on the heating body 33 from flowing in the direction of the first air passage 211 and / or the second air passage 73 of the atomizer 100, and the first air passage 211 and / or the second air passage 73 of the atomizer 100 are less likely to be clogged. Compared with the current atomizer, in the case where at least one end of the atomizing core 30 is provided with the oil collecting groove 35, the aerosol generating substrate can be effectively prevented from clogging the first air passage 211 and / or the second air passage 73 of the atomizer 100, and the amount of generated aerosol is also not reduced, the user's inhalation is better in taste, and the user's inhalation is also smoother.

[0095] The atomizer 100 will be further described below in combination with the accompanying drawings.

[0096] Referring to FIGS. 10 and 11, in some embodiments, one connecting portion 339 of the heating element 33 is electrically connected with the electrical connector 70, and the other connecting portion 339 of the heating element 33 is electrically connected with the electrically-conductive mounting base 50.

[0097] The mounting base 50 can be made of an electrically-conductive material. The electrically-conductive material includes, but is not limited to, electrically-conductive metal materials and electrically-conductive carbon materials. The electrically-conductive metal materials can include copper, aluminum, iron, silver, etc., and the electrically-conductive carbon materials can include graphite, carbon black, carbon fiber, etc. The mounting base 50 is electrically connected with the positive and negative poles of the battery assembly 300, respectively. The mounting base 50 is electrically connected with one electrode (positive or negative) of the heating wire 337 through one connecting portion 339, and the electrical connector 70 is electrically connected with the other electrode (negative or positive) of the heating wire 337 through the other connecting portion 339, so as to form a current loop. When a user inhales, the electric energy of the battery assembly 300 enters the heating wire 337 through the current loop, so that the heating wire 337 can generate heat to heat the aerosol generating substrate.

[0098] The electrical connector 70 can be installed in the mounting base 50 through an insulating fixing member 71, which is used to fix the electrical connector 70 in the mounting base 50. Since the electrical connector 70 and the mounting base 50 are both made of electrically-conductive materials, the fixing member 71 is also used to keep a spacing 315 between the electrical connector 70 and the mounting base 50. The fixing member 71 can be made of a non-conductive material, so as to avoid the problem of short circuit caused by contact between the electrical connector 70 and the mounting base 50.

[0099] Referring to FIGS. 3 and 10, in some embodiments, the cartridge tube 20 includes a first sub-portion 21 and a second sub-portion 23 connected with each other. The first sub-portion 21 is provided with a first air passage 211, and the second sub-portion 23 is provided with a mounting cavity 231.

[0100] The first sub-portion 21 is configured to guide the aerosol in the installation cavity 231 to flow out of the atomizer 100, and the second sub-portion 23 is configured to install the atomizing core 30. At least a portion of the second sub-portion 23 extends into the installation seat 50, and the second sub-portion 23 and the inner side of the installation seat 50 can be in interference fit, so that the connection between the second sub-portion 23 and the installation seat 50 is more stable. The first sub-portion 21 and the second sub-portion 23 can be an integral structure or a split structure. When the first sub-portion 21 and the second sub-portion 23 are an integral structure, the first sub-portion 21 and the second sub-portion 23 can be integrally formed, and the processing steps of the cartridge tube 20 are relatively simple. When the first sub-portion 21 and the second sub-portion 23 are a split structure, the first sub-portion 21 and the second sub-portion 23 can be detachably connected or non-detachably connected. The detachable installation mode includes but is not limited to threaded connection, screw connection, or buckle connection, etc. The non-detachable installation mode includes but is not limited to welding, adhesive connection, or interference fit, etc.

[0101] Please refer to FIGS. 10 to 12, in some embodiments, the oil collecting groove 35 includes a first oil collecting groove 351, and the heating element 33 is provided with the first oil collecting groove 351 at one end close to the first sub-portion 21.

[0102] Specifically, in some embodiments, the heating element 33 is provided with an atomizing cavity 331 in communication with the first air channel 211, and the heating element 33 includes a first portion 332 and a second portion 333 connected with each other, the first portion 332 is closer to the first sub-portion 21 than the second portion 333, the inner diameter of the first portion 332 is larger than that of the second portion 333, and the first oil collecting groove 351 is formed in the first portion 332 and in communication with the atomizing cavity 331.

[0103] The atomizing cavity 331 can be arranged at the center of the heating body 335, and the atomizing cavity 331 is in communication with the first air channel 211 and the second air channel 73. In the case that the heating wire 337 heats the aerosol generating substrate inside the heating body 335, the aerosol generated by the aerosol generating substrate will enter the atomizing cavity 331. When the user inhales, the external air enters the atomizing cavity 331 from the second air channel 73, and the gas can carry the aerosol in the atomizing cavity 331 to flow out of the atomizer 100 through the first air channel 211. The atomizing cavity 331 of the present application corresponds to and is in communication with the first air channel 211 and the second air channel 73 in the length direction H of the atomizer 100, so that the flow path of the gas flow is relatively short, and the aerosol can quickly flow out of the atomizer 100, and the user's smoking experience is better.

[0104] Please refer to FIG. 10 to FIG. 12, the first part 332 and the second part 333 can be cylindrical structures, the outer diameter of the first part 332 is greater than the outer diameter of the second part 333, the inner diameter of the first part 332 is greater than the inner diameter of the second part 333, and the heating wire 337 is embedded in the second part 333. The first part 332 and the second part 333 jointly form the atomization cavity 331. The first oil collecting groove 351 surrounds the atomization cavity 331, and in the height direction of the atomizer 100, the first oil collecting groove 351 corresponds to the top of the second part 333. The first oil collecting groove 351 is used to store the aerosol generating substrate flowing out from the top end of the first part 332. When the user inhales, since the first oil collecting groove 351 is not on the flow path of the airflow (the flow path of the second air channel 73-atomization cavity 331-first air channel 211), the aerosol generating substrate in the first oil collecting groove 351 is difficult to enter the first air channel 211, thereby avoiding the problem of the aerosol generating substrate in the first oil collecting groove 351 flowing out of the first air channel 211 to the outside of the atomizer 100, and also avoiding the problem of the aerosol generating substrate accumulating in the first air channel 211 to block the first air channel 211. When the user finishes inhaling, the aerosol generating substrate in the first oil collecting groove 351 can be sucked back into the heating body 335.

[0105] Please refer to FIG. 10, FIG. 11 and FIG. 13, further, in some embodiments, the oil collecting groove 35 includes a second oil collecting groove 353, the second oil collecting groove 353 is formed in the bracket 31, and the second oil collecting groove 353 communicates with the atomization cavity 331.

[0106] In the length direction H of the atomizer 100, the second oil collecting groove 353 corresponds to at least part of the second part 333. The second oil collecting groove 353 is used to store the aerosol generating substrate flowing out from the bottom end of the second part 333, thereby avoiding the problem of the aerosol generating substrate flowing from the second air channel 73 into the battery assembly 300, and also avoiding the problem of the aerosol generating substrate accumulating in the second air channel 73 to block the second air channel 73.

[0107] Please refer to FIG. 3, FIG. 10, FIG. 11 and FIG. 13, in some embodiments, the atomizer 100 further includes a storage member 10, the storage member 10 is installed on the mounting seat 50, the storage member 10 is provided with a loading cavity 11, and the cartridge tube 20 is located in the loading cavity 11; the mounting seat 50 is provided with a groove 51, the mounting seat 50 and the second sub-part 23 jointly form an air exchange channel 53, the air exchange channel 53 communicates with the loading cavity 11; the bracket 31 includes a mounting part 311 and at least two guide parts 313. The mounting part 311 is installed on the mounting seat 50. The at least two guide parts 313 are installed on the mounting part 311 with a spacing 315 therebetween, the spacing 315 between the at least two guide parts 313 communicates with the second oil collecting groove 353, and the guide part 313 is provided with a guide groove 3131, the guide groove 3131 communicates with the spacing 315 and the air exchange channel 53.

[0108] Referring to FIGS. 3-11, the inner side of the mounting seat 50 is provided with a groove 51. When the second sub-portion 23 is connected to the inner side of the mounting seat 50, the inner side of the mounting seat 50 and the second sub-portion 23 jointly form an air exchange passage 53 at the position where the groove 51 is located. The air exchange passage 53 is used to guide the aerosol generating substrate in the second oil collecting groove 353 to flow back into the loading cavity 11, so as to avoid the problem that the aerosol generating substrate in the second oil collecting groove 353 flows into the second air passage 73 due to excessive accumulation of the aerosol generating substrate in the second oil collecting groove 353. Preferably, the second sub-portion 23 and the inner side of the mounting seat 50 can be in interference fit. In this case, the aerosol generating substrate in the second oil collecting groove 353 will not leak out from the gap between the second sub-portion 23 and the mounting seat 50.

[0109] Referring to FIGS. 11 and 13, the bracket 31 is also used to guide the aerosol generating substrate in the second oil collecting groove 353 and the gas in the second air passage 73 to flow into the loading cavity 11 through the air exchange passage 53. The mounting portion 311 is used to be connected to the mounting seat 50, so that the bracket 31 can be fixedly connected to the mounting seat 50. The number of the guide portions 313 can be, but is not limited to, two, three, four or more. The present application includes two guide portions 313 which are spaced apart from each other. The two guide portions 313 jointly form the second oil collecting groove 353 with the mounting seat 50. The space 315 is formed between the two guide portions 313. The outer wall of the guide portion 313 is recessed in the direction of the second oil collecting groove 353 to form a guide groove 3131.

[0110] Referring to FIGS. 10, 11 and 13, after the user finishes smoking, a portion of the aerosol generating substrate in the loading cavity 11 is consumed by the heating element 33, and a negative pressure is formed in the loading cavity 11. At this time, the aerosol generating substrate in the second oil collecting groove 353 flows into the guide groove 3131 through the space 315, and then flows into the air exchange passage 53 from the guide groove 3131. The aerosol generating substrate in the air exchange passage 53 is sucked back into the loading cavity 11 due to the negative pressure. When the aerosol generating substrate in the second oil collecting groove 353 is sucked back into the loading cavity 11, the external gas in the second air passage 73 can flow into the guide groove 3131 through the space 315, and then flow into the loading cavity 11 from the guide groove 3131 through the air exchange passage 53 when the user smokes, so as to balance the air pressure in the loading cavity 11, thereby ensuring that the aerosol generating substrate in the loading cavity 11 can smoothly flow into the mounting cavity 231.

[0111] Preferably, the electrical connecting member 70 and the bracket 31 can be in interference fit. In this case, the aerosol generating substrate in the second oil collecting groove 353 can be effectively prevented from leaking out from the gap between the electrical connecting member 70 and the bracket 31. The electrical connecting member 70 and the mounting seat 50 can also be in interference fit. In this case, when the aerosol generating substrate in the guide groove 3131 flows towards the air exchange passage 53, the aerosol generating substrate can be effectively prevented from leaking out from the gap between the electrical connecting member 70 and the mounting seat 50.

[0112] Referring to FIGS. 3-11, in some embodiments, the atomizer 100 further comprises a first decoration 90, which is explained above. In some embodiments, the peripheral wall of the second sub-portion 23 is provided with a perforation 233, which communicates the loading cavity 11 and the mounting cavity 231, which is explained above.

[0113] Referring to FIGS. 10 and 11, in some embodiments, the mounting portion 311 is provided with a through hole 3111, and the electrical connecting member 70 is arranged to pass through the through hole 3111, and the second air channel 73 is in communication with the atomization cavity 331, and the highest point of the second air channel 73 is higher than the lowest point of the second oil collecting groove 353 in the length direction H of the atomizer 100.

[0114] The through hole 3111 is used for the electrical connecting member 70 to pass through the mounting portion 311. In the case that the highest point of the second air channel 73 is higher than the lowest point of the second oil collecting groove 353 in the length direction H of the atomizer 100, that is, in the case that the end of the electrical connecting member 70 close to the heating body 33 is higher than the top wall of the mounting portion 311 in the length direction H of the atomizer 100. At this time, the aerosol generating substrate in the second oil collecting groove 353 is less likely to enter the second air channel 73, and the problem of the aerosol generating substrate flowing into the second air channel 73 to block the second air channel 73 can be further avoided.

[0115] Referring to FIGS. 10 and 11, in some embodiments, the atomizer 100 further comprises a first seal 48 and a second seal 49, the first seal 48 is sleeved on the first portion 332 of the heating body 33 and located between the second sub-portion 23 and the first portion 332 of the cartridge tube 20, and the second seal 49 is sleeved on the end of the second portion 333 of the heating body 33 and located between the second sub-portion 23 and the second portion 333.

[0116] The first seal 48 is sleeved on the end of the first portion 332, and the first seal 48 is used to seal the gap between the end of the first portion 332 of the heating body 33 and the second sub-portion 23. The first seal 48 can block the aerosol generating substrate entering the mounting cavity 231 from the perforation 233 and flowing into the first air channel 211 through the gap between the end of the second sub-portion 23 close to the first sub-portion 21 and the first portion 332 of the heating body 33, so that the aerosol generating substrate can be prevented from flowing out of the atomizer 100 from the first air channel 211, and the aerosol generating substrate can also be prevented from accumulating in the first air channel 211 to block the first air channel 211. The first seal 48 can be made of rubber, silicone, plastic, synthetic fiber or the like.

[0117] Since the outer diameter of the first portion 332 of the heating element 33 of the present application is larger than the outer diameter of the second portion 333, the first seal 48 can also achieve full coverage at the junction of the first portion 332 and the second portion 333, thereby avoiding the problem that when the surface of the heating element 33 is deformed due to injection molding sintering, the aerosol generating substrate leaks from the gap between the heating element 33 and the first seal 48 and flows into the first air channel 211 during the user's suction.

[0118] The second seal 49 is sleeved on the end of the second portion 333, and the second seal 49 is used to seal the gap between the end of the second portion 333 of the heating element 33 and the second sub-portion 23. The second seal 49 is located between the end of the second portion 333 and the bracket 31. The second seal 49 can block the aerosol generating substrate entering the mounting cavity 231 from the perforation 233 and flowing into the second air channel 73 through the gap between the second portion 333 of the heating element 33 and the second sub-portion 23, thereby avoiding the problem that the aerosol generating substrate flows into the inside of the battery assembly 300 from the second air channel 73, and also avoiding the problem that the aerosol generating substrate accumulates in the second air channel 73 to block the second air channel 73. The first seal 48 can be made of rubber, silicone, plastic, or synthetic fiber.

[0119] Please refer to FIG. 3 and FIG. 10, further, in some embodiments, the atomizer 100 further comprises a mouthpiece 80 and a third seal 81, which are explained as above. In some embodiments, the atomizer 100 can further comprise a second decorative piece 91, which is explained as above.

[0120] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure. Meanwhile, other embodiments can be derived from the above-described embodiments, so that structural and logical substitutions and changes can be made without departing from the scope of the present disclosure.

[0121] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An atomiser, wherein, The cartridge includes: a storage member provided with a loading cavity for loading aerosol generating substrate; a cartridge tube installed in the loading cavity, the cartridge tube being provided with an installation cavity and a first air passage, the installation cavity being in communication with the first air passage and the loading cavity; a heating body installed in the installation cavity, the heating body being provided with an atomization cavity penetrating through opposite ends, the atomization cavity being in communication with the first air passage; and a sealing member installed in the installation cavity and located between the cartridge tube and the heating body, one side of the sealing member facing the atomization cavity being provided with an oil storage groove in communication with the atomization cavity. The sealing member includes a peripheral wall and a top wall connected to the peripheral wall, at least a portion of the peripheral wall being sleeved on the heating body, the top wall being spaced from the end of the heating body, and the top wall and the peripheral wall jointly forming the oil storage groove.

2. The atomizer of claim 1, wherein, The sealing member further includes at least two protrusions spaced from each other, the protrusions extending outward from the inner side of the peripheral wall towards the center of the atomization cavity, the protrusions being connected to the top wall and abutting against the end of the heating body, and the at least two protrusions, the top wall and the peripheral wall jointly forming at least two oil storage grooves.

3. The atomizer of claim 2, wherein, The sealing member is further provided with a liquid guide groove in communication with the oil storage groove, the liquid guide groove corresponding to the peripheral wall of the heating body.

4. The atomizer of claim 2 or 3, wherein, The inner side of the peripheral wall is recessed towards the center of the atomization cavity, one end of the liquid guide groove being in communication with the oil storage groove in the length direction of the atomizer, the side wall of the liquid guide groove being spaced from the heating body, and the peripheral wall on the side opposite to the oil storage groove being abutted against the heating body.

5. The atomizer of claim 4, wherein, The cartridge tube includes a first sub-portion and a second sub-portion connected to each other, the first sub-portion being provided with the first air passage, and the second sub-portion being provided with the installation cavity, the peripheral wall of the second sub-portion being provided with a perforation in communication with the loading cavity and the installation cavity.

6. The nebulizer of any one of claims 1-5, wherein, The sealing member includes:

7. The atomizer of claim 6, wherein, a first sealing member located between the second sub-portion and the heating body at one end close to the first sub-portion. The atomizer further includes a mounting seat and a support installed in the mounting seat, the storage member and the second sub-portion being connected to the mounting seat; the sealing member further includes:

8. The atomizer of claim 6, wherein, a second sealing member located between the heating body and the support. The atomizer further includes a conductive mounting seat and an electrical connecting member, the electrical connecting member being installed in the mounting seat through an insulating fixing member, one electrode of the heating body being connected to the mounting seat, and the other electrode of the heating body being connected to the electrical connecting member, the electrical connecting member being provided with a second air passage penetrating through opposite ends, the second air passage being in communication with the atomization cavity.

9. The atomizer of claim 1, wherein, The cartridge further includes:

10. The atomizer of claim 1, wherein, a mouthpiece connected to one end of the storage member, the mouthpiece being provided with a third air passage in communication with the first air passage; and a third sealing member arranged between the mouthpiece and the storage member and used for sealing the gap between the storage member and the mouthpiece. The cartridge includes: a mounting seat; 11. An atomiser, wherein, ​ ​ A cartridge pipe is connected with the mounting seat, and is provided with a first air channel and a mounting cavity which are communicated with each other; and An atomizing core comprises a support and a heating body. The support is mounted on the mounting seat and at least partially extends into the mounting cavity. The heating body is connected with the support and is accommodated in the mounting cavity. At least one end of the atomizing core is provided with an oil collecting groove in the length direction of the atomizer, and the oil collecting groove is communicated with the first air channel.

12. The atomizer of claim 11, wherein, The cartridge pipe comprises a first sub-portion and a second sub-portion which are connected with each other. The first sub-portion is provided with the first air channel, and the second sub-portion is provided with the mounting cavity. The oil collecting groove comprises a first oil collecting groove. The heating body is provided with the first oil collecting groove at one end close to the first sub-portion.

13. The atomizer of claim 12, wherein, The heating body is provided with an atomizing cavity communicated with the first air channel. The heating body comprises a first portion and a second portion which are connected with each other. The first portion is closer to the first sub-portion than the second portion. The inner diameter of the first portion is larger than the inner diameter of the second portion. The first oil collecting groove is formed in the first portion and is communicated with the atomizing cavity.

14. The atomizer of claim 11, wherein, The heating body is provided with an atomizing cavity communicated with the first air channel. The oil collecting groove comprises a second oil collecting groove. The second oil collecting groove is formed in the support and is communicated with the atomizing cavity.

15. The atomizer of claim 14, wherein, The cartridge pipe comprises a first sub-portion and a second sub-portion which are connected with each other. The first sub-portion is provided with the first air channel, and the second sub-portion is provided with the mounting cavity. The atomizer further comprises a storage member. The storage member is mounted on the mounting seat and is provided with a loading cavity. The cartridge pipe is located in the loading cavity. The mounting seat is provided with a groove. The mounting seat and the second sub-portion jointly form an air exchange channel which is communicated with the loading cavity. The support comprises: a mounting portion mounted on the mounting seat; and at least two guide portions which are mounted on the mounting portion at intervals. The interval between the at least two guide portions is communicated with the second oil collecting groove. The guide portion is provided with a guide groove which is communicated with the interval and the air exchange channel.

16. The atomizer of claim 14, wherein, The mounting portion is provided with a through hole. The atomizer further comprises: an electrical connecting member mounted on the mounting seat and penetrating through the through hole. The electrical connecting member is provided with a second air channel which is communicated with the atomizing cavity. In the length direction of the atomizer, the highest point of the second air channel is higher than the lowest point of the second oil collecting groove.

17. The atomizer of claim 11, wherein, The heating body comprises: a heating body provided with a plurality of micropores inside; a heating wire embedded inside the heating body. The heating wire generates heat after being electrified; and two connecting portions. One end of the connecting portion is embedded inside the heating body, and the other end of the connecting portion extends out of the heating body. One of the connecting portions is electrically connected with one electrode of the heating wire, and the other of the connecting portions is electrically connected with the other electrode of the heating wire.

18. The atomizer of claim 17, wherein, The atomizer further comprises an electrical connecting member. One of the connecting portions is electrically connected with the electrical connecting member, and the other of the connecting portions is electrically connected with the electrically conductive mounting seat.

19. The atomizer of claim 11, wherein, The atomizer further comprises a first sealing member and a second sealing member, the first sealing member is sleeved on a first part of the heating body and located between the second sub-part of the cartridge tube and the first part, and the second sealing member is sleeved on an end part of a second part of the heating body and located between the second sub-part and the second part.

20. An aerosol-generating device comprising: Comprising: a battery assembly; and The atomizer of any one of claims 1-19, in electrical connection with the battery assembly.

Images