Atomizer and aerosol generation device

Abstract

An atomizer (100) and an aerosol generation device (1000). The atomizer (100) comprises an atomization base (10), an air guide member (20), and a liquid storage member (30). The liquid storage member (30), the air guide member (20) and the atomization base (10) together form an air exchange channel (105). The air guide member (20) and / or the liquid storage member (30) is provided with a capillary groove (107), and the capillary groove (107) is located in the air exchange channel (105) and is used for restricting an aerosol generation substrate from flowing into an accommodation cavity (101).

Description

Nebulizers and aerosol generating devices

[0001] Priority information

[0002] This application claims priority and benefits of patent application No. 202323557145.5 filed with the State Intellectual Property Office of China on December 25, 2023, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of atomization technology, and more specifically, to a nebulizer and an aerosol generating device. Background Art

[0004] An aerosol-generating device is a small device that uses a heat-not-burn (HNB) process to heat an aerosol-generating substrate and generate an aerosol. Typically, an aerosol-generating device includes a liquid storage chamber for storing the aerosol-generating substrate. When the ambient temperature drops, the negative pressure in the liquid storage chamber increases, necessitating a ventilation channel to replenish the ambient air into the liquid storage chamber. However, when the ambient temperature rises, the pressure in the liquid storage chamber may exceed the ambient pressure. In this case, the aerosol-generating substrate in the liquid storage chamber may leak through the ventilation channel, resulting in waste of the aerosol-generating substrate.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide a nebulizer and an aerosol generating device.

[0007] The atomizer of the embodiment of the present application includes an atomizer seat, an air guide and a liquid storage member. The atomizer seat is provided with an air inlet hole connected to the outside air. The air guide is connected to the atomizer seat and together form a receiving cavity, and the receiving cavity is connected to the air inlet hole. The liquid storage member is arranged around the air guide and together with the air guide, forms a liquid storage cavity for storing an aerosol-generating matrix. The liquid storage member, the air guide and the atomizer seat together form a ventilation channel, and the ventilation channel is connected to the receiving cavity and the liquid storage cavity to allow the outside air to flow into the liquid storage cavity. Capillary grooves are provided on the air guide and / or the liquid storage member. The capillary grooves are located in the ventilation channel and are used to limit the aerosol-generating matrix from flowing into the receiving cavity.

[0008] In certain embodiments, the air guide is provided with a through hole, which is in communication with both the liquid storage chamber and the accommodating chamber. The atomizer further comprises a heating element, which is disposed in the accommodating chamber and is used to separate the accommodating chamber into a liquid inlet chamber and an atomizing chamber. The liquid inlet chamber is in communication with the through hole, and the atomizing chamber is in communication with both the air inlet and the ventilation channel. The heating element is used to heat the aerosol-generating substrate entering the liquid inlet chamber to generate an aerosol, which is located in the atomizing chamber.

[0009] In certain embodiments, the atomizer further includes a sealing member disposed in the accommodating chamber, and the sealing member is used to seal the communication between the liquid inlet chamber and the atomizing chamber.

[0010] In some embodiments, the seal is provided with a liquid inlet channel, which is connected to the through hole, and the heating element is arranged in the liquid inlet channel; the side wall of the liquid inlet channel is provided with an abutment surface, which is used to abut with the heating element to ensure that the heating element is installed in place.

[0011] In some embodiments, the heating element includes a heating layer, which faces the atomization chamber and is opposite to the ventilation channel.

[0012] In certain embodiments, the air inlet comprises a plurality of spaced capillary pores, and the capillary pores are used to restrict the aerosol-generating substrate from flowing out of the accommodating cavity.

[0013] In some embodiments, the diameter of the capillary pore is D, wherein the value range of D is [0.30 mm, 0.50 mm].

[0014] In certain embodiments, the nebulizer further includes an absorber, which is disposed on the nebulizer seat and is configured to absorb the aerosol-generating substrate in the accommodating cavity.

[0015] In some embodiments, the nebulizer further comprises an airway tube, which is disposed in the accommodating chamber and is provided with an inner cavity, the inner cavity being connected to the accommodating chamber and the air inlet hole, and the absorber being disposed between the airway tube and the nebulizer seat for absorbing the aerosol generating matrix flowing into the inner cavity.

[0016] The aerosol generating device according to an embodiment of the present application comprises a battery assembly and the atomizer according to any one of the above embodiments, wherein the atomizer is electrically connected to the battery assembly.

[0017] In the atomizer and aerosol generating device of the embodiment of the present application, the liquid storage member, the air guide member and the atomizing seat jointly form a ventilation channel, and the ventilation channel is connected with the accommodating chamber and the liquid storage chamber, and is used to supply external air to flow into the liquid storage chamber. The air guide member and / or the liquid storage member are provided with a capillary groove, which is located in the ventilation channel and can limit the aerosol generating matrix from flowing into the accommodating chamber. Therefore, the setting of the capillary groove can, on the one hand, reduce or even avoid the waste of the aerosol generating matrix; on the other hand, it can prevent the aerosol generating matrix from flowing into the accommodating chamber and causing blockage of the air inlet, thereby ensuring that external air can flow into the accommodating chamber and the ventilation channel through the air inlet, thereby improving the stability and reliability of the operation of the aerosol generating device.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] FIG1 is a schematic diagram of the three-dimensional structure of an aerosol generating device according to certain embodiments of the present application;

[0021] FIG2 is a perspective exploded schematic diagram of the atomizer in the aerosol generating device shown in FIG1 ;

[0022] FIG3 is a cross-sectional schematic diagram of an embodiment of an atomizer in the aerosol generating device shown in FIG1 ;

[0023] FIG4 is a perspective exploded schematic diagram of a portion of the structure of the atomizer in the aerosol generating device shown in FIG1 ;

[0024] FIG5 is a cross-sectional schematic diagram of another embodiment of the atomizer in the aerosol generating device shown in FIG1 .

[0025] Key Component Symbols: Aerosol Generating Device 1000; Atomizer 100; Battery Assembly 200; Accommodating Chamber 101, Liquid Inlet Chamber 1011, Atomizing Chamber 1013; Liquid Storage Chamber 103; Ventilation Channel 105, Communication Groove 1051; Capillary Groove 107; Atomizer Holder 10, Air Inlet Hole 11, Capillary Hole 111, First Sub-Section 13, Bottom Wall 131, Peripheral Wall 133, Second Sub-Section 15, First Through-Hole 17, Second Through-Hole 19; Air Guide 20, Connecting Portion 21, Top Wall 211, Side Wall 213, Guide Portion 23, Through-Hole 231, Through-Hole 25 Liquid storage member 30; heating element 40, porous ceramic 41, heating layer 43, conductive member 45; sealing member 50, liquid inlet channel 51, abutting surface 53; absorber 60; airway tube 70, inner cavity 71; closing member 80. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that the terms "center", "length", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0029] In this application, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed or removable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] Referring to Figures 1 to 3 , an atomizer 100 according to an embodiment of the present application includes an atomizer base 10, an air guide 20, and a liquid storage member 30. The atomizer base 10 is provided with an air inlet 11 for communication with the outside air. The air guide 20 is connected to the atomizer base 10 and together they form a receiving chamber 101, which is in communication with the air inlet 11. The liquid storage part 30 is arranged around the air guide part 20, and together with the air guide part 20 forms a liquid storage chamber 103 for storing an aerosol generating matrix (not shown in the figure). The liquid storage part 30, the air guide part 20 and the atomizer seat 10 together form a ventilation channel 105. The ventilation channel 105 is connected to the accommodating chamber 101 and the liquid storage chamber 103 to allow external air to flow into the liquid storage chamber 103. Capillary grooves 107 are provided on the air guide part 20 and / or the liquid storage part 30. The capillary grooves 107 are located in the ventilation channel 105 and are used to limit the aerosol generating matrix from flowing into the accommodating chamber 101.

[0032] The aerosol-generating matrix is ​​an element capable of generating aerosols. Specifically, the aerosol-generating matrix can be converted into fine particles by heating or ultrasonic vibration and then mixed with air to form an aerosol. The aerosol-generating matrix can be in a solid or liquid state. In the case where the aerosol-generating matrix is ​​liquid tobacco oil, the tobacco oil is a mixed liquid containing substances such as nicotine and nicotine dissolved therein, and its solutes are common organic and / or inorganic solutes such as propylene glycol, vegetable glycerin, and pure water. In the present application, the aerosol-generating matrix can be a high-viscosity tobacco oil (such as sesame oil), which can generate aerosols when heated. Aerosols can be visible or invisible and can include vapor (for example, fine particulate matter in a gaseous state, which is typically liquid or solid at room temperature) as well as liquid droplets of gas and condensed vapor. The term "aerosol" herein encompasses the aerosol generated when the aerosol-generating matrix in the heated aerosol generating device 1000 is heated.

[0033] Specifically, in some embodiments, when the ambient temperature of the aerosol generating device 1000 decreases, the pressure in the liquid storage chamber 103 decreases and the negative pressure increases. In this case, the outside air can flow into the liquid storage chamber 103 through the air inlet 11, the accommodating chamber 101 and the ventilation channel 105 in sequence to ensure that the air pressure of the liquid storage chamber 103 is balanced with that of the outside world; when the ambient temperature of the aerosol generating device 1000 increases, the pressure in the liquid storage chamber 103 increases and the negative pressure decreases. In this case, the pressure in the liquid storage chamber 103 can squeeze the aerosol generating matrix in the liquid storage chamber 103 into the ventilation channel 105. Since the capillary groove 107 has a capillary force, the aerosol generating matrix squeezed into the ventilation channel 105 can be stored in the capillary groove 107 under the action of the capillary force. Therefore, the setting of the capillary groove 107 can reduce or even avoid the waste of the aerosol generating matrix. In addition, if the aerosol generating matrix flows into the accommodating chamber 101, the aerosol generating matrix can solidify in the accommodating chamber 101 and block the air inlet 11, thereby preventing the outside air from entering the accommodating chamber 101 through the air inlet 11. On the one hand, this will prevent the outside air from entering the liquid storage chamber 103 to adjust the air pressure in the liquid storage chamber 103; on the other hand, it will prevent the aerosol generating matrix from cooperating with the outside air to generate aerosol. Therefore, the setting of the capillary groove 107 can also prevent the aerosol generating matrix from flowing into the accommodating chamber 101 and causing the air inlet 11 to be blocked. On the one hand, it can ensure that the outside air can flow into the ventilation channel 105 through the air inlet 11 to adjust the air pressure in the liquid storage chamber 103; on the other hand, it can ensure that the outside air can flow into the accommodating chamber 101 through the air inlet 11 to cooperate with the aerosol generating matrix, thereby ensuring the normal operation of the aerosol generating device 1000.

[0034] It should be noted that when the user inhales the aerosol generating device 1000, the aerosol generating matrix in the liquid storage chamber 103 is consumed, thereby reducing the pressure in the liquid storage chamber 103. At this time, the aerosol generating matrix stored in the capillary groove 107 can flow back into the liquid storage chamber 103, thereby reducing the waste of the aerosol generating matrix and ensuring the user's inhalation experience.

[0035] In certain embodiments, the cross-sectional dimension of the capillary groove 107 is inversely proportional to the viscosity of the aerosol-generating substrate. That is, the greater the viscosity of the aerosol-generating substrate, the smaller the cross-sectional dimension of the capillary groove 107. This ensures that the capillary force exerted by the capillary groove 107 on the aerosol-generating substrate is sufficient, that is, the storage effect of the capillary groove 107 on the aerosol-generating substrate is sufficient. For example, when the viscosity of the aerosol-generating substrate is a first viscosity, the cross-sectional dimension of the capillary groove 107 is a first dimension; when the viscosity of the aerosol-generating substrate is a second viscosity, the cross-sectional dimension of the capillary groove 107 is a second dimension. If the first viscosity is greater than the second viscosity, the first dimension is smaller than the second dimension.

[0036] In the atomizer 100 and the aerosol generating device 1000 of the embodiment of the present application, the liquid storage part 30, the air guide part 20 and the atomizing seat 10 jointly form a ventilation channel 105, and the ventilation channel 105 is connected with the accommodating chamber 101 and the liquid storage chamber 103, and is used to supply external air to flow into the liquid storage chamber 103. The air guide part 20 and / or the liquid storage part 30 are provided with a capillary groove 107, which is located in the ventilation channel 105 and can limit the aerosol generating matrix from flowing into the accommodating chamber 101. Therefore, the setting of the capillary groove 107 can, on the one hand, reduce or even avoid the waste of the aerosol generating matrix; on the other hand, it can prevent the aerosol generating matrix from flowing into the accommodating chamber 101 and causing blockage of the air inlet 11, thereby ensuring that external air can flow into the accommodating chamber 101 and the ventilation channel 105 through the air inlet 11, thereby improving the stability and reliability of the aerosol generating device 1000.

[0037] The atomizer 100 will be further described below with reference to the accompanying drawings.

[0038] Referring to Figures 2 and 3, in some embodiments, the air guide 20 includes a connecting portion 21 and a guiding portion 23 that are combined. At least a portion of the connecting portion 21 is disposed within the atomizer seat 10. The liquid storage member 30 is sleeved on the connecting portion 21 and spaced apart from the guiding portion 23, so that the liquid storage member 30, the connecting portion 21, and the guiding portion 23 together form a liquid storage chamber 103.

[0039] Specifically, in some embodiments, the connecting portion 21 includes a top wall 211 and a side wall 213 extending from the periphery of the top wall 211 toward the atomizer seat 10. The side wall 213 can be connected to the atomizer seat 10 to form the accommodating chamber 101 together with the atomizer seat 10. The liquid storage member 30 is connected to the outer side of the side wall 213 (the side of the side wall 213 facing away from the accommodating chamber 101) and is spaced apart from the guide portion 23. Thus, the liquid storage member 30, the connecting portion 21, and the guide portion 23 can jointly form the liquid storage chamber 103 for accommodating the aerosol-generating substrate. It can be understood that, in some embodiments, the guide portion 23 is provided with a through-hole 231, which is connected to the outside air and the accommodating chamber 101. When the aerosol generating device 1000 is inhaled, the outside air enters the atomization chamber 1013 from the air inlet 11 so that the aerosol generating matrix can be heated and atomized to generate an aerosol, and the generated aerosol can flow into the through-hole 231 to be inhaled by the user.

[0040] In some embodiments, a sealing member 80 may be provided between the guide portion 23 and the liquid reservoir 30. The sealing member 80 is disposed at the end of the guide portion 23 away from the connecting portion 21. The sealing member 80 can seal the gap between the guide portion 23 and the liquid reservoir 30, thereby preventing the aerosol-generating substrate in the liquid reservoir 103 from leaking out of the liquid reservoir 103 through the gap between the guide portion 23 and the liquid reservoir 30, thereby reducing or even eliminating waste of the aerosol-generating substrate. It should be noted that in some embodiments, the sealing member 80 can be made of at least one of rubber, silicone, plastic, or synthetic fiber. Examples of rubber materials include, but are not limited to, natural rubber, nitrile rubber, fluororubber, polyurethane rubber, EPDM rubber, or silicone rubber.

[0041] In some embodiments, the connecting portion 21 and the guiding portion 23 are integrally formed, that is, the connecting portion 21 and the guiding portion 23 form a single unitary structure, thereby improving the structural strength between the connecting portion 21 and the guiding portion 23. In other embodiments, the connecting portion 21 and the guiding portion 23 are separate bodies, that is, the connecting portion 21 and the guiding portion 23 form two different structures, wherein the connecting portion 21 and the guiding portion 23 can be connected together using a detachable connection method or a non-detachable connection method, wherein the detachable connection method includes but is not limited to a snap connection or a threaded connection, and the non-detachable connection method includes but is not limited to bonding or welding.

[0042] In some embodiments, the atomizer seat 10 may include a first sub-portion 13 including a bottom wall 131 and a peripheral wall 133 extending from the periphery of the bottom wall 131 toward the connecting portion 21 . The side wall 213 can be connected to the peripheral wall 133 to form the accommodating cavity 101 .

[0043] Specifically, in some embodiments, the peripheral wall 133 is connected to the outside of the side wall 213, and the peripheral wall 133 can abut the liquid storage member 30. Thus, the connecting portion 21, the liquid storage member 30, and the first sub-portion 13 can collectively form the accommodating chamber 101. In some embodiments, the ventilation channel 105 can be disposed on the outside of the side wall 213. Specifically, a connecting groove 1051 is provided on the outside of the side wall 213. The connecting groove 1051 is recessed from the outside of the side wall 213 toward the center of the accommodating chamber 101. When the atomizer 100 is assembled, the liquid storage member 30 and the peripheral wall 133 are both mounted on the outside of the side wall 213 to close the connecting groove 1051 on the side facing away from the accommodating chamber 101. Thus, the liquid storage member 30, the air guide 20, and the atomizer base 10 can collectively form the ventilation channel 105. The connecting groove 1051 is located within the ventilation channel 105. In other words, the ventilation channel 105 includes the connecting groove 1051. It can be understood that when the ventilation channel 105 is arranged on the outside of the side wall 213, the capillary groove 107 is also arranged on the outside of the side wall 213, and the capillary groove 107 is connected to the connecting groove 1051. In this case, the ventilation channel 105 also includes the capillary groove 107.

[0044] Referring to Figures 2 to 4 , in certain embodiments, the air guide 20 is provided with a through hole 25, which is in communication with both the liquid storage chamber 103 and the accommodating chamber 101. The atomizer 100 may further include a heating element 40, which is disposed in the accommodating chamber 101 and is used to separate the accommodating chamber 101 into a liquid inlet chamber 1011 and an atomizing chamber 1013. The liquid inlet chamber 1011 is in communication with the through hole 25, and the atomizing chamber 1013 is in communication with both the air inlet 11 and the ventilation channel 105. The heating element 40 is used to heat the aerosol-generating substrate entering the liquid inlet chamber 1011 to generate an aerosol, which is located in the atomizing chamber 1013.

[0045] Specifically, in some embodiments, a through hole 25 is provided on the top wall 211, and the through hole 25 is connected to both the liquid storage chamber 103 and the accommodating chamber 101. When the aerosol generating device 1000 is sucked, the aerosol generating matrix in the liquid storage chamber 103 can enter the liquid inlet chamber 1011 through the through hole 25 and contact the heating element 40. At the same time, the outside air can enter the atomization chamber 1013 through the air inlet hole 11. Thus, the heating element 40 can generate heat to heat the aerosol generating matrix and generate an aerosol in the atomization chamber 1013.

[0046] Among them, the heating element 40 is a device or material that can generate heat energy and transfer heat energy to the surrounding environment. In some embodiments, the heating element 40 may include a porous ceramic 41, a heating layer 43 and a conductive member 45. The porous ceramic 41 is arranged in the accommodating chamber 101 and the accommodating chamber 101 is divided into a liquid inlet chamber 1011 and an atomizing chamber 1013. The heating layer 43 is arranged on the side of the porous ceramic 41 facing the atomizing chamber 1013. The conductive member 45 is installed on the atomizing seat 10 and is electrically connected to the heating layer 13. When the conductive member 45 transmits electrical energy to the heating layer 43, the heating layer 43 can generate heat and heat the aerosol-generating matrix through the porous ceramic 41. It should be noted that, in some embodiments, the porous ceramic 41 is usually prepared by mixing ceramic slurry with a pore-forming agent and then sintering. There are a large number of micropores in the sintered ceramic body (not shown). The heating layer 43 includes but is not limited to at least one of a heating circuit, a heating sheet, a heating wire and a heating net. The conductive member 45 may include a pin and an electrode, both of which are installed through the atomizer seat 10 and electrically connected to the battery assembly 200 (shown in Figure 1). As a result, the conductive member 45 can transmit the electrical energy of the battery assembly 200 to the heating layer 43 to generate heat. The provision of the pin can improve the stability of the electrical connection and ensure the stability and reliability of the operation of the heating element 40. It should be noted that in some embodiments, the electrode may include but is not limited to a sheet, a columnar or a porous powder.

[0047] In some embodiments, the heat-generating layer 43 is opposite to the ventilation channel 105 . Specifically, in some embodiments, the porous ceramic 41 includes a first side and a second side opposite to each other, the first side of the porous ceramic 41 faces the atomization chamber 1013, the heating layer 43 is installed on the first side of the porous ceramic 41, and the ventilation channel 105 is opposite to the first side of the porous ceramic 41, that is, the positive projection of the ventilation channel 105 on the plane perpendicular to the direction from the first side of the porous ceramic 41 to the second side of the porous ceramic 41 at least partially overlaps with the positive projection of the heating layer 43 on the plane perpendicular to the direction from the first side of the porous ceramic 41 to the second side of the porous ceramic 41. As a result, the heat generated by the heating element 40 can be transferred to the ventilation channel 105, thereby heating the aerosol generating matrix in the capillary groove 107, preventing the aerosol generating matrix from solidifying in the capillary groove 107, and ensuring that when the aerosol generating device 1000 is inhaled, the aerosol generating matrix in the capillary groove 107 can flow back into the liquid storage chamber 103, thereby reducing the waste of the aerosol generating matrix.

[0048] Referring to Figures 2 to 4 , in some embodiments, the atomizer 100 may further include a sealing member 50, which is disposed within the accommodating chamber 101 and is used to seal the connection between the liquid inlet chamber 1011 and the atomizing chamber 1013. It should be noted that in some embodiments, the sealing member 50 may be made of at least one of rubber, silicone, plastic, and synthetic fiber, wherein the rubber material includes but is not limited to natural rubber, nitrile rubber, fluororubber, polyurethane rubber, EPDM rubber, or silicone rubber.

[0049] Specifically, in some embodiments, the sealing member 50 can be arranged between the heating element 40 and the air guide 20 and / or the first sub-section 13 to seal the gap between the heating element 40 and the air guide 20 and / or the first sub-section 13, that is, to close the communication between the liquid inlet chamber 1011 and the atomization chamber 1013, thereby preventing the aerosol generating matrix in the liquid storage chamber 103 from entering the atomization chamber 1013 through the gap between the heating element 40 and the air guide 20 and / or the first sub-section 13, resulting in the aerosol generating matrix being unable to be heated and atomized by the heating element 40, thereby reducing the waste of the aerosol generating matrix on the one hand; on the other hand, preventing the aerosol generating matrix from entering the atomization chamber 1013 and blocking the air inlet 11, thereby improving the stability and reliability of the aerosol generating device 1000.

[0050] In other embodiments, the atomizer seat 10 may further include a second sub-portion 15, which is disposed in the accommodating chamber 101 and connected to the first sub-portion 13. The first sub-portion 13, the second sub-portion 15 and the connecting portion 21 together form the accommodating chamber 101. A sealing member 50 can be disposed between the heating element 40 and the air guide 20 and / or the second sub-portion 15 to seal the gap between the heating element 40 and the air guide 20 and / or the second sub-portion 15, that is, to close the communication between the liquid inlet chamber 1011 and the atomizing chamber 1013, thereby preventing the aerosol generating substrate from entering the atomizing chamber 1013 through the gap between the heating element 40 and the air guide 20 and / or the second sub-portion 15, causing the aerosol generating substrate to be unable to be heated and atomized by the heating element 40. This can, on the one hand, reduce the waste of the aerosol generating substrate; on the other hand, it can prevent the aerosol generating substrate from entering the atomizing chamber 1013 and blocking the air inlet 11, thereby ensuring the stability and reliability of the operation of the aerosol generating device 1000.

[0051] Furthermore, in some embodiments, the sealing member 50 is provided with a liquid inlet channel 51, which is in communication with the through-hole 25, and the heating element 40 is disposed within the liquid inlet channel 51. Specifically, in some embodiments, the sealing member 50 includes a first end and a second end opposite to each other, the first end of the sealing member 50 being in communication with the through-hole 25, and the second end of the sealing member 50 being in communication with the atomization chamber 1013, and the liquid inlet channel 51 passing through the first end and the second end of the sealing member 50. When the aerosol-generating substrate in the liquid storage chamber 103 enters the liquid inlet chamber 1011 through the through-hole 25, the aerosol-generating substrate can enter the liquid inlet channel 51, come into contact with the heating element 40, and be heated by the heating element 40 to be atomized to generate an aerosol.

[0052] Furthermore, in some embodiments, a side wall of the liquid inlet channel 51 is provided with an abutting surface 53, and the abutting surface 53 is used to abut against the heating element 40 to ensure that the heating element 40 is installed in place. Among them, the setting of the abutment surface 53 can, on the one hand, facilitate the installation and positioning of the heating element 40 in the liquid inlet channel 51, thereby improving the assembly efficiency of the heating element 40 in the seal 50; on the other hand, it can increase the abutment area between the heating element 40 and the seal 50, that is, in addition to the peripheral wall of the heating element 40 being able to abut against the seal 50 (the side wall of the liquid inlet channel 51), the second side of the porous ceramic 41 can also abut against the seal 50 (the abutment surface 53), thereby improving the sealing between the heating element 40 and the seal 50, and preventing the aerosol generating matrix from leaking into the atomization chamber 1013 through the gap between the heating element 40 and the side wall of the liquid inlet channel 51, thereby reducing the waste of the aerosol generating matrix on the one hand; on the other hand, it can prevent the aerosol generating matrix from entering the atomization chamber 1013 and blocking the air inlet 11, thereby improving the stability and reliability of the aerosol generating device 1000.

[0053] Specifically, in some embodiments, the sealing member 50 may further be provided with a groove, which is recessed from the second end of the liquid inlet channel 51 in a direction away from the atomizing chamber 1013, and the groove can be in communication with the liquid inlet channel 51, wherein the abutting surface 53 is the bottom wall 131 of the groove. When the heating element 40 is mounted on the sealing member 50, when the heating element 40 abuts against the abutting surface 53, that is, when the heating element 40 abuts against the bottom wall 131 of the groove, the heating element 40 is installed in place in the sealing member 50.

[0054] If the aerosol generating matrix in the liquid storage chamber 103 can still enter the atomization chamber 1013, for example, the volume of the capillary groove 107 is smaller than the volume of the aerosol generating matrix leaked into the ventilation channel 105, then the leaked aerosol generating matrix will block the air inlet 11, thereby affecting the normal operation of the aerosol generating device 1000. Therefore, please refer to Figures 3 and 4. In some embodiments, the air inlet 11 includes a plurality of spaced capillary holes 111, which are used to limit the aerosol generating matrix from flowing out of the accommodating chamber 101. Specifically, in certain embodiments, when the aerosol-generating substrate leaks into the atomization chamber 1013 and contacts the air inlet 11, due to the capillary tension in the capillary pores 111, the aerosol-generating substrate that leaks into the atomization chamber 1013 can form a thin film structure under the action of the capillary tension and cover the capillary pores 111. That is, the capillary tension can restrict the aerosol-generating substrate from flowing into the capillary pores 111, thereby preventing the aerosol-generating substrate from solidifying in the capillary pores 111 and clogging the capillary pores 111 (the air inlet 11), thereby ensuring the normal operation of the aerosol-generating device 1000. It will be understood that when the aerosol-generating device 1000 is inhaled, the impact force generated by the external air can break through the thin film structure formed by the aerosol-generating substrate, thereby ensuring the normal operation of the aerosol-generating device 1000.

[0055] In some embodiments, the diameter of the capillary pore 111 is D, where the value of D ranges from [0.30 mm to 0.50 mm]. Specifically, in some embodiments, the value of D can be any one of 0.30 mm, 0.33 mm, 0.35 mm, 0.37 mm, 0.39 mm, 0.41 mm, 0.43 mm, 0.45 mm, 0.47 mm, and 0.50 mm, or any value between any two of these values. It should be noted that in some embodiments, the diameters of the capillary pores 111 can be the same; or the diameters of the capillary pores 111 can be different.

[0056] In certain embodiments, the cross-sectional dimension of the capillary pore 111 is inversely proportional to the viscosity of the aerosol-generating substrate. That is, the greater the viscosity of the aerosol-generating substrate, the smaller the cross-sectional dimension of the capillary pore 111. This ensures that the capillary pore 111 exerts a capillary force on the aerosol-generating substrate, i.e., ensures that the capillary pore 111 has a storage effect on the aerosol-generating substrate. For example, when the viscosity of the aerosol-generating substrate is a first viscosity, the cross-sectional dimension of the capillary pore 111 is a first dimension; when the viscosity of the aerosol-generating substrate is a second viscosity, the cross-sectional dimension of the capillary pore 111 is a second dimension. If the first viscosity is greater than the second viscosity, the first dimension is smaller than the second dimension.

[0057] If the diameter of the capillary pore 111 is less than 0.30 mm, the suction resistance of the aerosol generating device 1000 is large when the aerosol generating device 1000 is inhaled, and the amount of external air that can enter the atomization chamber 1013 through the capillary pore 111 (air inlet 11) per unit time becomes less, resulting in insufficient aerosol generated by the aerosol generating matrix, affecting the user's puffing taste; if the diameter of the capillary pore 111 is greater than 0.50 mm, the capillary tension of the capillary pore 111 is too small, resulting in the aerosol generating matrix leaked into the atomization chamber 1013 being able to enter the capillary pore 111, and flow out of the accommodating chamber 101 through the capillary pore 111, which will cause the aerosol generating matrix to block the capillary pore 111, thereby affecting the normal operation of the aerosol generating device 1000. In the present application, the diameter D of the capillary pore 111 has a value range of [0.30 mm, 0.50 mm]. On the one hand, this can prevent the aerosol generating device 1000 from having a large suction resistance, and ensure the amount of external air entering the atomization chamber 1013 through the capillary pore 111 (air inlet 11) per unit time, thereby increasing the amount of aerosol generated by the aerosol generating matrix and ensuring the user's puffing taste; on the other hand, it can avoid the capillary tension of the capillary pore 111 being too small, causing the aerosol generating matrix to enter the capillary pore 111 and cause blockage of the capillary pore 111, thereby ensuring the normal operation of the aerosol generating device 1000.

[0058] Referring to Figures 3 or 5 , in certain embodiments, the atomizer 100 may further include an absorbent member 60 disposed on the atomizer seat 10. The absorbent member 60 is configured to absorb the aerosol-generating substrate in the accommodating chamber 101. Specifically, the absorbent member 60 absorbs any aerosol-generating substrate that leaks into the accommodating chamber 101, preventing the aerosol-generating substrate from solidifying in the air inlet 11 and causing blockage, thereby ensuring the proper operation of the aerosol-generating device 1000. It should be noted that in certain embodiments, the absorbent member 60 may be made of one or more materials such as oil-absorbing cotton or non-woven fabric.

[0059] Specifically, in some embodiments, when the atomizer seat 10 includes only the first sub-section 13 and the air inlet 11 is provided in the first sub-section 13, the absorber 60 can be provided on the first sub-section 13 and surround the air inlet 11. Referring to FIG3 , in other embodiments, when the atomizer seat 10 includes the first sub-section 13 and the second sub-section 15 and the air inlet 11 is provided in the second sub-section 15, the absorber 60 can be provided on the second sub-section 15 and surround the air inlet 11; or provided between the first sub-section 13 and the second sub-section 15 and surround the air inlet 11. Referring to FIG5 , in still other embodiments, when the atomizer seat 10 includes the first sub-section 13 and the second sub-section 15 and the air inlet 11 is provided in the first sub-section 13, the absorber 60 can be provided between the first sub-section 13 and the second sub-section 15 and surround the air inlet 11.

[0060] In some embodiments, when the atomizer seat 10 includes a first sub-portion 13 and a second sub-portion 15, and the absorber 60 is arranged between the first sub-portion 13 and the second sub-portion 15, the second sub-portion 15 is provided with a mounting groove, which is recessed from the side of the second sub-portion 15 toward the bottom wall 131 in a direction away from the bottom wall 131, and at least a portion of the absorber 60 is arranged in the mounting groove. Therefore, the setting of the mounting groove can reduce the space size occupied by the absorber 60, which is conducive to the miniaturization of the atomizer 100.

[0061] It is understood that, in conjunction with FIG3 , in some embodiments, when the atomizer seat 10 includes a first sub-portion 13 and a second sub-portion 15, and the air inlet 11 is provided in the second sub-portion 15, the second sub-portion 15 may be provided with a first through-hole 17 that is in communication with both the outside air and the air inlet 11, and the outside air can flow into the accommodating chamber 101 through the first through-hole 17 and the air inlet 11 in sequence. In conjunction with FIG5 , in other embodiments, when the atomizer seat 10 includes a first sub-portion 13 and a second sub-portion 15, and the air inlet 11 is provided in the first sub-portion 13, the second sub-portion 15 may be provided with a second through-hole 19 that is in communication with both the accommodating chamber 101 and the air inlet 11, and the outside air can flow into the accommodating chamber 101 through the air inlet 11 and the second through-hole 19 in sequence.

[0062] Referring to FIG. 5 , in certain embodiments, the atomizer 100 may further include an airway tube 70, which is disposed within the accommodating chamber 101 and includes an inner cavity 71. The inner cavity 71 is in communication with the accommodating chamber 101 and the air inlet 11. An absorber 60 is disposed between the airway tube 70 and the atomizer base 10 to absorb the aerosol-generating substrate flowing into the inner cavity 71. The provision of the airway tube 70 can guide the outside air entering the accommodating chamber 101, thereby ensuring that the outside air can quickly come into contact with the heating element 40, thereby increasing the aerosol generation rate and enhancing the user's puffing experience.

[0063] Specifically, in some embodiments, when the atomizer seat 10 includes only the first sub-portion 13, the airway tube 70 can be installed in the first sub-portion 13, and the absorbent 60 is disposed between the airway tube 70 and the first sub-portion 13. In other embodiments, when the atomizer seat 10 includes the first sub-portion 13 and the second sub-portion 15, and the air inlet 11 is disposed in the first sub-portion 13, the airway tube 70 can pass through the second sub-portion 15 and be connected to the first sub-portion 13, and the absorbent 60 is disposed between the airway tube 70 and the first sub-portion 13. In still other embodiments, when the atomizer seat 10 includes the first sub-portion 13 and the second sub-portion 15, and the air inlet 11 is disposed in the second sub-portion 15, the airway tube 70 can be installed in the second sub-portion 15, and the absorbent 60 is disposed between the airway tube 70 and the first sub-portion 13.

[0064] To sum up, in a possible embodiment of the present application, a capillary groove 107 is provided on the air guide 20 and / or the liquid storage member 30, the air inlet 11 includes a plurality of spaced capillary holes 111, and the atomizer 100 includes an absorber 60. Thus, the capillary groove 107, the capillary holes 111 and the absorber 60 can work together to prevent the air inlet 11 from being blocked by the aerosol generating matrix, thereby improving the stability and reliability of the operation of the aerosol generating device 1000.

[0065] In another possible embodiment of the present application, the atomizer 100 may utilize only one of the capillary groove 107, the plurality of spaced capillary holes 111, and the absorbent 60, or a combination of any two of the three, to prevent the air inlet 11 from being blocked by the aerosol-generating matrix, thereby improving the stability and reliability of the operation of the aerosol generating device 1000. For example, the air guide 20 and / or the liquid storage member 30 may be provided with the capillary groove 107, and the air inlet 11 may include the plurality of spaced capillary holes 111, but the atomizer 100 may not include the absorbent 60. For another example, the air guide 20 and / or the liquid storage member 30 may be provided with the capillary groove 107, and the atomizer 100 may include the absorbent 60, but the air inlet 11 may not include the plurality of spaced capillary holes 111. For another example, the air inlet 11 includes a plurality of spaced capillary holes 111 , and the atomizer 100 includes the absorber 60 , but the air guide 20 and / or the liquid storage 30 are not provided with the capillary grooves 107 .

[0066] 1 to 3 , an aerosol generating device 1000 according to an embodiment of the present application includes a battery assembly 200 and an atomizer 100 according to any of the above embodiments. The atomizer 100 is electrically connected to the battery assembly 200 .

[0067] In some embodiments, the aerosol generating device 1000 may further include a detection element (not shown), which can analyze whether the aerosol generating device 1000 is being inhaled based on changes in air pressure. It should be noted that in some embodiments, the detection element may be a microphone.

[0068] Specifically, in certain embodiments, when a user inhales the aerosol generating device 1000, the air pressure in the atomizing chamber 1013 gradually decreases to a negative pressure compared to the outside atmosphere, and the air pressure in the space where the detection element is located also decreases to a negative pressure. When the detection element detects a negative pressure, the detection element can control the heating element 40 to generate heat so that the aerosol generating matrix is ​​heated to generate an aerosol for the user to inhale. When the aerosol generating device 1000 is not inhaled, outside air can enter the atomizing chamber 1013 through the air inlet 11, so that the air pressure in the atomizing chamber 1013 returns to the same as that of the outside atmosphere. After the detection element detects the change in air pressure, the detection element controls the heating element 40 to stop generating heat.

[0069] In the aerosol generating device 1000 of the embodiment of the present application, the liquid storage part 30, the air guide part 20 and the atomizer seat 10 jointly form a ventilation channel 105, and the ventilation channel 105 is connected to both the accommodating chamber 101 and the liquid storage chamber 103, and is used to allow external air to flow into the liquid storage chamber 103. A capillary groove 107 is provided on the air guide part 20 and / or the liquid storage part 30. The capillary groove 107 is located in the ventilation channel 105 and can limit the aerosol generating matrix from flowing into the accommodating chamber 101. Therefore, the setting of the capillary groove 107 can reduce or even avoid the waste of the aerosol generating matrix.

[0070] Furthermore, if the air inlet 11 becomes clogged, preventing outside air from entering the accommodating chamber 101, the detector will be unable to detect changes in air pressure, resulting in the detector being unable to control the heat generation of the heating element 40, thereby affecting the normal operation of the aerosol generating device 1000 and causing a poor user puffing experience. Therefore, the provision of the capillary groove 107 can also prevent the aerosol-generating matrix from flowing into the accommodating chamber 101 and causing blockage of the air inlet 11, thereby ensuring the normal operation of the detector, thereby improving the stability and reliability of the aerosol generating device 1000 and ensuring a good user puffing experience.

[0071] The technical features of the above-described embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there are no conflicts in the combination of these technical features, they should be considered to be within the scope of this specification. Furthermore, other implementations can be derived from the above-described embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0072] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An atomizer, wherein, Comprising: An atomization base, the atomization base is provided with an air inlet hole communicating with the outside air; An air guiding member, the air guiding member is connected to the atomization base and together forms a receiving cavity, the receiving cavity communicates with the air inlet hole; and A liquid storage member, the liquid storage member is disposed around the air guiding member and together with the air guiding member forms a liquid storage cavity for storing an aerosol generating substrate, the liquid storage member, the air guiding member and the atomization base together form a ventilation channel, the ventilation channel communicates with both the receiving cavity and the liquid storage cavity for allowing the outside air to flow into the liquid storage cavity, and a capillary groove is provided on the air guiding member and / or the liquid storage member, the capillary groove is located in the ventilation channel and is used for restricting the aerosol generating substrate from flowing into the receiving cavity.

2. The atomizer according to claim 1, wherein, The air guiding member is provided with a through hole, the through hole communicates with both the liquid storage cavity and the receiving cavity; The atomizer further includes: A heating element, the heating element is disposed in the receiving cavity and is used for dividing the receiving cavity into a liquid inlet cavity and an atomization cavity, the liquid inlet cavity communicates with the through hole, the atomization cavity communicates with both the air inlet hole and the ventilation channel, the heating element is used for heating the aerosol generating substrate entering the liquid inlet cavity to generate an aerosol, and the aerosol is located in the atomization cavity.

3. The atomizer according to claim 2, wherein, The atomizer further includes: A sealing member, the sealing member is disposed in the receiving cavity, and the sealing member is used for closing the communication between the liquid inlet cavity and the atomization cavity.

4. The atomizer according to claim 3, wherein, The sealing member is provided with a liquid inlet channel, the liquid inlet channel communicates with the through hole, and the heating element is disposed in the liquid inlet channel; A contact surface is provided on the side wall of the liquid inlet channel, and the contact surface is used for contacting the heating element to determine that the heating element is installed in place.

5. The atomizer according to claim 2, wherein, The heating element includes a heating layer, the heating layer faces the atomization cavity and is opposite to the ventilation channel.

6. The atomizer according to claim 1, wherein, The air inlet hole includes a plurality of spaced capillary holes, and the capillary holes are used for restricting the aerosol generating substrate from flowing out of the receiving cavity.

7. The atomizer according to claim 6, wherein, The diameter of the capillary hole is D, wherein the value range of D is [0.30 mm, 0.50 mm].

8. The atomizer according to claim 1, wherein, The atomizer further includes: An absorption member, the absorption member is disposed on the atomization base, and the absorption member is used for absorbing the aerosol generating substrate in the receiving cavity.

9. The atomizer according to claim 8, wherein, The atomizer further includes: An airway tube, the airway tube is disposed in the receiving cavity and is provided with an inner cavity, the inner cavity communicates with both the receiving cavity and the air inlet hole, and the absorption member is disposed between the airway tube and the atomization base for absorbing the aerosol generating substrate flowing into the inner cavity.

10. An aerosol generating device, wherein, Comprising: A battery assembly; And An atomizer, the atomizer is electrically connected to the battery assembly, and the atomizer includes: An atomization base, the atomization base is provided with an air inlet hole communicating with the outside air; An air guiding member, the air guiding member is connected to the atomization base and together forms a receiving cavity, the receiving cavity communicates with the air inlet hole; and A liquid storage member, which is disposed around the air guiding member and jointly forms a liquid storage cavity with the air guiding member for storing an aerosol generating matrix. The liquid storage member, the air guiding member and the atomizing base jointly form a ventilation channel, and the ventilation channel is communicated with both the accommodation cavity and the liquid storage cavity for allowing external air to flow into the liquid storage cavity. A capillary groove is provided on the air guiding member and / or the liquid storage member, and the capillary groove is located in the ventilation channel and is used to restrict the aerosol generating matrix from flowing into the accommodation cavity.

11. The aerosol generating device according to claim 10, wherein, The air guiding member is provided with a through hole, and the through hole is communicated with both the liquid storage cavity and the accommodation cavity; the atomizer further includes: A heating element, which is disposed in the accommodation cavity and is used to divide the accommodation cavity into a liquid inlet cavity and an atomizing cavity. The liquid inlet cavity is communicated with the through hole, and the atomizing cavity is communicated with the air inlet hole and the ventilation channel. The heating element is used to heat the aerosol generating matrix entering the liquid inlet cavity to generate an aerosol, and the aerosol is located in the atomizing cavity.

12. The aerosol generating device according to claim 11, wherein, The atomizer further includes: A sealing member, which is disposed in the accommodation cavity and is used to seal the communication between the liquid inlet cavity and the atomizing cavity.

13. The aerosol generating device according to claim 12, wherein, The sealing member is provided with a liquid inlet channel, and the liquid inlet channel is communicated with the through hole. The heating element is disposed in the liquid inlet channel; a contact surface is provided on the side wall of the liquid inlet channel, and the contact surface is used to contact the heating element to determine that the heating element is installed in place.

14. The aerosol generating device according to claim 11, wherein, The heating element includes a heating layer, and the heating layer faces the atomizing cavity and is opposite to the ventilation channel.

15. The aerosol generating device according to claim 10, wherein, The air inlet hole includes a plurality of spaced capillary holes, and the capillary holes are used to restrict the aerosol generating matrix from flowing out of the accommodation cavity.

16. The aerosol generating device according to claim 15, wherein, The diameter of the capillary hole is D, where the value range of D is [0.30 mm, 0.50 mm].

17. The aerosol generating device according to claim 10, wherein, The atomizer further includes: An absorbent member, which is disposed on the atomizing base and is used to absorb the aerosol generating matrix in the accommodation cavity.

18. The aerosol generating device according to claim 17, wherein, The atomizer further includes: An airway tube, which is disposed in the accommodation cavity and has an inner cavity. The inner cavity is communicated with both the accommodation cavity and the air inlet hole. The absorbent member is disposed between the airway tube and the atomizing base for absorbing the aerosol generating matrix flowing into the inner cavity.

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