Liquid storage bin, atomizer and aerosol generating device

Abstract

The embodiment of the utility model provides a liquid storage bin, an atomizer and an aerosol generating device, the liquid storage bin is used for providing an aerosol generating matrix for an atomizing assembly in the aerosol generating device, the liquid storage bin comprises a shell assembly and a flexible film, the shell assembly is provided with a containing cavity and an air passing hole, and the air passing hole communicates with the containing cavity and the exterior of the liquid storage bin; at least part of the flexible film is arranged in the containing cavity, a storage cavity is defined by the flexible film and part of the inner wall of the containing cavity, the storage cavity is used for storing an aerosol generating substrate, and the flexible film isolates the storage cavity from the air passing hole and comprises a deformation part; the deformation part is located in the containing cavity and can generate elastic deformation under the action of the pressure difference between the pressure in the storage cavity and the pressure in the air passing hole. According to the liquid storage bin in the embodiment of the invention, the volume of the storage cavity can be changed through deformation of the deformation part of the flexible film, and the probability that the aerosol generating substrate leaks from the liquid storage bin and the aerosol generating device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model embodiment relates to atomization technical field, concretely relates to a kind of liquid storage bin, atomizer and aerosol generating device. BACKGROUND

[0002] The aerosol generating device is used to generate aerosol for a user to inhale.

[0003] The aerosol generating device is provided with a storage cavity for storing aerosol generating substrate.

[0004] In the related art, as the aerosol generating substrate in the storage cavity is consumed, the inside of the storage cavity can form a negative pressure compared to the outside of the aerosol generating device to reduce the risk of leakage of the aerosol generating substrate in the storage cavity.

[0005] During use of the aerosol generating device, the temperature and air pressure of the external environment of the aerosol generating device can change, thereby causing the negative pressure of the inside of the storage cavity compared to the outside of the aerosol generating device to change. For example, the air in the inside of the storage cavity expands after being heated, thereby pressing the aerosol generating substrate and increasing the probability of leakage of the aerosol generating substrate. SUMMARY

[0006] Therefore, the utility model embodiment aims to provide a liquid storage bin, an atomizer and an aerosol generating device that can reduce the probability of leakage of aerosol generating substrate.

[0007] To achieve the above object, the technical scheme of the utility model embodiment is as follows:

[0008] The utility model embodiment provides a liquid storage bin for providing aerosol generating substrate to an atomization assembly in an aerosol generating device, which comprises:

[0009] A housing assembly is provided with a containing cavity and a gas passage hole, and the gas passage hole communicates the containing cavity with the outside of the liquid storage bin.

[0010] A flexible membrane is at least partially arranged in the containing cavity and surrounds part of the inner wall of the containing cavity to form a storage cavity, and the storage cavity is used to store aerosol generating substrate. The flexible membrane separates the storage cavity from the gas passage hole, and the flexible membrane comprises a deformation portion, which is located in the containing cavity and can be elastically deformed under the pressure difference between the pressure in the storage cavity and the pressure in the gas passage hole.

[0011] In some embodiments, a side of the deformation portion away from the storage cavity is spaced apart from an inner wall of the containing cavity to form a movable cavity, the movable cavity is isolated from the storage cavity and communicates with the gas passage hole, at least part of the deformation portion is bent to form a plurality of wrinkle portions, at least part of the wrinkle portions protrude towards the storage cavity.

[0012] In some embodiments, a distance between a surface of the deformation portion towards the storage cavity and a surface of the deformation portion away from the storage cavity ranges from 0.25mm to 0.4mm.

[0013] In some embodiments, a material of the deformation portion is one of silica gel and rubber.

[0014] In some embodiments, a Shore hardness value of the deformation portion ranges from 30 degrees to 50 degrees.

[0015] In some embodiments, the shell assembly is provided with an airflow channel extending through in a first direction, the airflow channel is configured to communicate with the atomization assembly, the containing cavity and the deformation portion are both circumferentially arranged around at least part of a periphery of the airflow channel along an axis extending in the first direction, and the gas passage hole communicates with the airflow channel.

[0016] In some embodiments, the shell assembly comprises a shell body, a sealing member and a support tube, the shell body is provided with a mounting cavity and a first gas hole, the mounting cavity is open at one side in the first direction and the first gas hole is located at the other side of the mounting cavity, the first gas hole communicates the mounting cavity with an outside of the shell body, the sealing member covers the open position of the mounting cavity, the sealing member is provided with a second gas hole extending therethrough, the support tube is located in the mounting cavity and sealingly engages with an inner wall of the mounting cavity and the sealing member to jointly form the containing cavity, the support tube is provided with a central hole extending through in the first direction, at least part of the central hole forms the airflow channel, two ends of the airflow channel in the first direction respectively communicate with the first gas hole and the second gas hole, the deformation portion circumferentially surrounds the support tube, and the gas passage hole is provided on the support tube.

[0017] In some embodiments, the flexible film further comprises a fixing portion, the fixing portion is located at and connected to at least one end of the deformation portion in the first direction, a structural strength of the fixing portion is higher than a structural strength of the deformation portion, at least part of the fixing portion is located in the mounting cavity and circumferentially surrounds the support tube along an axis extending in the first direction, and the fixing portion sealingly engages with the support tube.

[0018] In some embodiments, the housing assembly further includes a heat insulation tube located within the central hole and having a through hole and the airflow channel, the through hole connecting the airflow channel and the vent hole, wherein the thermal conductivity of the material of the heat insulation tube is lower than that of the material of the support tube;

[0019] Alternatively, the material of the support tube may be either plastic or fiberglass.

[0020] This application also provides an atomizer, which includes an atomizing component and the liquid storage chamber described in the foregoing embodiments. The storage chamber is connected to the atomizing component to provide an aerosol generation matrix to the atomizing component.

[0021] This application also provides an aerosol generating device, which includes a battery assembly and the atomizer described in the foregoing embodiments, wherein the battery assembly is used to supply power to the atomizing assembly.

[0022] In this embodiment, the liquid storage chamber deforms through the deformable portion of the flexible membrane under the combined effects of temperature and pressure within the storage cavity and temperature and pressure in the external environment. This allows the volume of the storage cavity to change, thereby reducing the pushing force of air within the storage cavity on the aerosol generating matrix. This reduces the probability of leakage of the aerosol generating matrix from the liquid storage chamber and the aerosol generating device, which helps extend the service life of the liquid storage chamber and improves the user experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the liquid storage tank in the first embodiment of the present invention;

[0024] Figure 2 for Figure 1 A cross-sectional diagram of position AA in the middle;

[0025] Figure 3 for Figure 2 A magnified view of a portion of position B in the diagram;

[0026] Figure 4 This is a schematic diagram of the support tube in one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of a flexible membrane in one embodiment of the present invention;

[0028] Figure 6 This is a partially enlarged schematic diagram of the liquid storage tank in the second embodiment of this utility model, and the enlarged position is the same as... Figure 2 The position of B in the middle is the same;

[0029] Figure 7 This is a partially enlarged schematic diagram of the liquid storage tank in the third embodiment of this utility model, and the enlarged position is the same as...Figure 2 The position of B in the middle is the same;

[0030] Figure 8 This is a partially enlarged schematic diagram of the liquid storage tank in the fourth embodiment of this utility model. The enlarged position is the same as... Figure 2 The position of B in the middle is the same;

[0031] Figure 9 This is a schematic diagram of the liquid storage tank in the fifth embodiment of the present invention;

[0032] Figure 10 for Figure 9 A cross-sectional view of the CC position in the middle;

[0033] Figure 11 for Figure 10 A magnified view of a portion of position D.

[0034] Explanation of reference numerals in the attached figures

[0035] 10. Liquid storage tank; 10a. Storage cavity; 10b. Movable cavity; 11. Shell assembly; 11a. Receiving cavity; 11b. Vent; 11c. Airflow channel; 111. Shell body; 111a. First vent; 112. Seal; 112a. Second vent; 112b. Liquid passage; 113. Support tube; 113a. Central hole; 114. Heat insulation tube; 114a. Through hole; 12. Flexible membrane; 121. Deformable part; 1211. Wrinkled part; 1211a. Cavity; 1211b. Bending part; 1211c. Connecting part; 122. Fixing part; 20. Atomizing assembly. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0039] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0040] In the description of the embodiments of the application, the term“and / or” is merely used to describe an associated relationship between associated objects, and indicates that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally represents an“or” relationship between the front and rear associated objects.

[0041] In the description of the embodiments of the application, for the convenience of description, as shown in the drawings, the direction of the arrow X is the straight line direction of the“first direction”.

[0042] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical 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 mechanical connection, or it can be electrical connection; 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0043] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical term“contact” should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, which can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0044] The embodiments of the application provide a liquid storage bin 10, which is used to provide an aerosol generating substrate to an atomization assembly 20 in an aerosol generating device, so that the atomization assembly 20 can atomize the aerosol generating substrate. Figures 1 to 3 、 Figure 9 and Figure 10 The liquid storage bin 10 is used to provide an aerosol generating substrate to an atomization assembly 20 in an aerosol generating device, so that the atomization assembly 20 can atomize the aerosol generating substrate.

[0045] The liquid storage bin 10 includes a shell assembly 11 and a flexible film 12.

[0046] The shell assembly 11 is provided with a containing cavity 11a and a gas passing hole 11b, the gas passing hole 11b communicates the containing cavity 11a with the outside of the liquid storage bin 10;

[0047] At least part of the flexible film 12 is arranged in the containing cavity 11a and forms a storage cavity 10a with part of the inner wall of the containing cavity 11a, the storage cavity 10a being used for storing the aerosol generating substrate, the flexible film 12 isolates the storage cavity 10a from the air passage 11b, and the flexible film 12 comprises a deformation part 121, the deformation part 121 being located in the containing cavity 11a and being capable of being elastically deformed under the pressure difference between the pressure in the storage cavity 10a and the pressure in the air passage 11b.

[0048] It can be understood that part of the space of the containing cavity 11a forms the storage cavity 10a.

[0049] The flexible film 12 isolates the storage cavity 10a and the air passage 11b, so that the aerosol generating substrate in the storage cavity 10a is difficult to leak out of the liquid storage compartment 10 through the air passage 11b.

[0050] The deformation part 121 is located in the containing cavity 11a, that is, the shell assembly 11 can shield at least part of the deformation part 121, thereby playing a certain protective role on the deformation part 121, so that objects outside the liquid storage compartment 10 are difficult to directly contact the deformation part 121 through the air passage 11b, and the deformation part 121 is deformed or damaged.

[0051] The aerosol generating substrate is a fluid medium and can flow in the storage cavity 10a.

[0052] During the operation of the aerosol generating device, the aerosol generating substrate in the storage cavity 10a gradually decreases, so that a cavity is formed in the storage cavity 10a, and the air pressure in the cavity is generally lower than the air pressure of the external environment of the aerosol generating device, that is, the storage cavity 10a is under negative pressure relative to the external environment of the aerosol generating device.

[0053] The deformation part 121 can form part of the inner wall of the cavity, so that the pressure of the objects in the cavity can act on the deformation part 121, and at the same time, the airflow passes through the air passage 11b, and the air pressure outside the liquid storage compartment 10 can also act on the deformation part 121.

[0054] The objects in the cavity that can act on the deformation part 121 can be the aerosol generating substrate or the air in the cavity, or both can exert pressure on the deformation part 121.

[0055] It can be understood that, under the influence of factors such as the consumption of the aerosol generating substrate in the storage cavity 10a, the change of the temperature and air pressure of the external environment of the aerosol generating device, the pressure difference between the air pressure on the side of the deformation part 121 facing the storage cavity 10a and the air pressure on the side of the deformation part 121 facing the air passage 11b will change, so that, under the pressure driving of the side with higher pressure, the deformation part 121 deforms towards the side with lower pressure, so that the volume of the storage cavity 10a changes.

[0056] For example, after the temperature of the external environment of the aerosol generating device rises, the air in the cavity rises in temperature through the heat conduction of the shell assembly 11, the pressure of the air in the cavity rises and expands, thereby driving the deformation part 121 to deform towards the air passage 11b, so that the volume of the storage cavity 10a increases, thereby reducing the probability of the air in the cavity pushing the aerosol generating substrate to leak from the liquid storage tank 10 and the aerosol generating device.

[0057] For another example, after the pressure of the external environment decreases, the pressure difference between the pressure of the air in the cavity and the pressure of the external environment decreases, the air in the cavity expands, thereby driving the deformation part 121 to deform towards the air passage 11b, so that the volume of the storage cavity 10a increases, also reducing the probability of the air in the cavity pushing the aerosol generating substrate to leak from the liquid storage tank 10 and the aerosol generating device.

[0058] The liquid storage tank 10 in the embodiments of the present application deforms through the deformation part 121 of the flexible film 12 under the joint action of the temperature and pressure in the storage cavity 10a and the temperature and pressure of the external environment, so that the volume of the storage cavity 10a can change, thereby facilitating the reduction of the pushing force of the air in the storage cavity 10a on the aerosol generating substrate, reducing the probability of the aerosol generating substrate leaking from the liquid storage tank 10 and the aerosol generating device, facilitating the extension of the service life of the liquid storage tank 10, and improving the user experience.

[0059] The specific number of the air passages 11b is not limited, which can be one or multiple.

[0060] The specific number of the deformation part 121 is not limited, which can be one or multiple.

[0061] The deformation part 121 can be correspondingly arranged with multiple air passages 11b, or the deformation part 121 and the air passage 11b can be one-to-one correspondingly arranged.

[0062] It can be understood that, the pressure difference between the pressure of the air in the storage cavity 10a and the pressure of the external environment is small, therefore, the deformation part 121 needs to be able to deform under the action of small pressure.

[0063] In some embodiments,Figure 3 The side of the deformation portion 121 away from the storage cavity 10a is spaced apart from the inner wall of the containing cavity 11a to form a movable cavity 10b, which is isolated from the storage cavity 10a and communicates with the air passage 11b.

[0064] In this way, on the one hand, the probability that the deformation portion 121 is deformed or damaged due to contact with external objects through the air passage 11b is further reduced; on the other hand, the probability that the deformation portion 121 is blocked by the inner wall of the containing cavity 11a and cannot be elastically deformed is reduced by utilizing the change in the volume of the movable cavity 10b, which is conducive to the deformation of the deformation portion 121.

[0065] In some embodiments, referring to Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , at least part of the deformation portion 121 is bent to form a pleat portion 1211.

[0066] Through the pleat portion 1211, the overall structural strength of the deformation portion 121 can be reduced, which is conducive to the deformation of the deformation portion 121 under the action of the pressure difference between the two sides, and is also conducive to increasing the deformation range of the deformation portion 121.

[0067] The specific number of the pleat portion 1211 is not limited and can be one or more.

[0068] In some embodiments in which the number of the pleat portion 1211 is more than one, referring to Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , at least part of the pleat portion 1211 protrudes toward the storage cavity 10a.

[0069] In this way, the deformation portion 121 is easily deformed toward the storage cavity 10a under the action of the pressure difference between the two sides, which is conducive to increasing the deformation range of the deformation portion 121.

[0070] In some embodiments in which the number of the pleat portion 1211 is more than one, referring to Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , part of the pleat portion 1211 protrudes toward the movable cavity 10b.

[0071] In this way, the deformation portion 121 is easily deformed toward the movable cavity 10b under the action of the pressure difference between the two sides, which is conducive to increasing the deformation range of the deformation portion 121.

[0072] It can be understood that, referring toFigure 3 、 Figure 6 、 Figure 7 and Figure 8 The concave cavity 1211a is open on the side away from the convex direction of the wrinkle part 1211.

[0073] In some embodiments, referring to Figure 3 The distance between the surface of the deformation part 121 towards the storage cavity 10a side and the surface away from the storage cavity 10a side is L1, and 0.25mm≤L2≤0.4mm.

[0074] The distance between the surface of the deformation part 121 towards the storage cavity 10a side and the surface away from the storage cavity 10a side refers to the distance between any point on the surface of the deformation part 121 towards the storage cavity 10a side and the closest point on the surface away from the storage cavity 10a side.

[0075] In this way, the deformation part 121 has a certain structural strength, reducing the probability of the deformation part 121 breaking after multiple reciprocating deformations; at the same time, it is also beneficial for the deformation part 121 to deform in time under the action of the pressure difference.

[0076] The specific value of the distance between the surface of the deformation part 121 towards the storage cavity 10a side and the surface away from the storage cavity 10a side can be 0.25mm, 0.26mm, 0.28mm, 0.3mm, 0.32mm, 0.34mm, 0.35mm, 0.36mm, 0.38mm, 0.4mm, etc.

[0077] In some embodiments, the material of the deformation part 121 is one of silica gel and rubber.

[0078] In this way, it is beneficial to enable the deformation part 121 to elastically deform under the action of the pressure difference, and at the same time, the deformation part 121 has good sealing performance, reducing the risk of leakage of the aerosol generating substrate from the deformation part 121.

[0079] In some embodiments, the Shore hardness value of the deformation part 121 ranges from 30 degrees to 50 degrees.

[0080] In this way, on the one hand, it is beneficial to enable the deformation part 121 to elastically deform under the action of the pressure difference, so that the deformation part 121 has a certain structural strength, reducing the probability of the deformation part 121 breaking after multiple reciprocating deformations.

[0081] In some embodiments, referring to Figure 2 and Figure 10 , the housing assembly 11 is provided with an airflow passage 11c extending through the housing assembly 11 along the first direction, the airflow passage 11c is configured to communicate with the atomization assembly 20, the accommodation cavity 11a is arranged around at least a portion of a periphery of the airflow passage 11c along an axis extending in the first direction, and the air passage hole 11b is in communication with the airflow passage 11c.

[0082] The airflow passage 11c can be configured to provide airflow to the atomization assembly 20, so that the airflow can enter the atomization assembly 20 and mix with the atomized aerosol generating substrate in the atomization assembly 20 to form an aerosol; alternatively, the aerosol in the atomization assembly 20 can be discharged to the outside of the aerosol generating device through the airflow passage 11c for a user to smoke.

[0083] The structure forming the airflow passage 11c extends through the accommodation cavity 11a along the first direction, so that the inner wall of the airflow passage 11c is not directly exposed to the outer contour surface of the housing assembly 11.

[0084] In this way, the opening of the air passage hole 11b in communication with the airflow passage 11c is also not directly exposed to the outer contour surface of the housing assembly 11, further reducing the probability of an external object contacting the flexible membrane 12 through the air passage hole 11b, and further improving the service life of the flexible membrane 12; at the same time, the existing structure forming the airflow passage 11c can be utilized, so that the structure of the liquid storage tank 10 is more compact.

[0085] In some embodiments, referring to Figure 2 and Figure 10 , the deformation portion 121 is arranged around the periphery of the airflow passage 11c along the axis extending in the first direction.

[0086] In this way, it is beneficial for the liquid storage tank 10 to be in different postures, and the deformation portion 121 can be elastically deformed in time under the action of the pressure difference between the pressure in the storage cavity 10a and the pressure in the air passage hole 11b, improving the response speed of the elastic deformation of the deformation portion 121 and further reducing the risk of leakage of the aerosol generating substrate caused by the change of the air pressure in the storage cavity 10a; on the other hand, it is also beneficial to increase the coverage range of the deformation portion 121 and increase the amplitude of the elastic deformation.

[0087] In some embodiments provided with a plurality of wrinkle portions 1211, referring to Figure 3 , Figure 6 , Figure 7 and Figure 8 , the plurality of wrinkle portions 1211 are sequentially connected along the first direction, the wrinkle portion 1211 protrudes perpendicularly to the first direction and the protruding directions of adjacent two wrinkle portions 1211 are opposite.

[0088] In this way, the deformation portion 121 is deformed in the direction perpendicular to the first direction, thereby increasing the deformation range of the deformation portion 121.

[0089] In some embodiments, referring to Figure 3 , Figure 6 , Figure 7 and Figure 8 , the pleat portion 1211 includes two bending portions 1211b oppositely arranged along the first direction, and a concave cavity 1211a is formed between the two bending portions 1211b along the first direction, and one side of the concave cavity 1211a is open in the direction perpendicular to the first direction.

[0090] In some embodiments, referring to Figure 6 , Figure 7 and Figure 8 , the distance between the two bending portions 1211b along the first direction gradually increases in the open direction of the concave cavity 1211a, so as to facilitate the deformation of the deformation portion 121.

[0091] In some embodiments, referring to Figure 6 , the two bending portions 1211b of the same pleat portion 1211 are connected to each other, so as to simplify the structure of the pleat portion 1211 and the production process of the flexible film 12.

[0092] In other embodiments, referring to Figure 7 and Figure 8 , the pleat portion 1211 further includes a connecting portion 1211c connecting the two bending portions 1211b, and the connecting portion 1211c is in the form of an arc or extends along the first direction, so as to reduce the probability of tearing due to stress concentration during the deformation of the pleat portion 1211.

[0093] In some embodiments, referring to Figure 3 , Figure 6 , Figure 7 and Figure 8 , in the two adjacent pleat portions 1211, one bending portion 1211b of each pleat portion 1211 is connected to the other bending portion 1211b.

[0094] In some embodiments in which the number of the air holes 11b is multiple, at least part of the air holes 11b are arranged at intervals around the side of the air flow channel 11c along the axis extending along the first direction, so that the change of the air pressure of the external environment more rapidly and uniformly changes the air pressure in the air holes 11b.

[0095] The specific structure of the air flow channel 11c is not limited.

[0096] For example, referring to Figure 2 , Figure 3 and Figure 4The shell assembly 11 comprises a shell body 111, a sealing member 112 and a support tube 113. The shell body 111 is provided with a mounting cavity and a first air hole 111a. The mounting cavity is open along one side in the first direction, and the first air hole 111a is located at the other side of the mounting cavity. The first air hole 111a is in communication with the outside of the liquid storage container 10 and the mounting cavity. The sealing member 112 covers the open position of the mounting cavity and is provided with a second air hole 112a. The support tube 113 is located in the mounting cavity and is in sealing cooperation with the inner wall of the mounting cavity and the sealing member 112 to jointly form a containing cavity 11a. The support tube 113 is provided with a central hole 113a penetrating in the first direction. At least part of the central hole 113a forms an airflow channel 11c. The airflow channel 11c is in communication with the first air hole 111a and the second air hole 112a at both ends in the first direction. The deformation part 121 surrounds the circumferential side of the support tube 113. The air passing hole 11b is provided on the support tube 113.

[0097] That is, the support tube 113 and the shell body 111 are independent parts from each other.

[0098] In this way, it is beneficial to assemble the flexible film 12 and the support tube 113 outside the shell body 111 and then assemble them into the mounting cavity, which improves the convenience of assembly operation. Meanwhile, when the shell body 111 is manufactured by using a mold drawing process or the like, the manufacturing process of the shell body 111 is independent of the process of manufacturing the air passing hole 11b of the support tube 113, which is beneficial to simplify the manufacturing process of the shell body 111 and the support tube 113.

[0099] It can be understood that the sealing member 112 can be elastically deformed to improve the sealing performance of the containing cavity 11a.

[0100] In some embodiments, referring to Figure 2 The second air hole 112a extends in the first direction. A part of the support tube 113 is inserted into the second air hole 112a and is in sealing cooperation with the inner wall of the second air hole 112a, so as to reduce the risk of leakage of aerosol from the joint between the sealing member 112 and the support tube 113.

[0101] In some embodiments, referring to Figure 2 The first air hole 111a extends in the first direction, so that the first air hole 111a and the mounting cavity can be manufactured synchronously and at one time by using a mold drawing process or the like, which is beneficial to improve the manufacturing efficiency.

[0102] In some embodiments, at least one of the first air hole 111a and the second air hole 112a is in communication with the outside of the aerosol generating device, so that the airflow flows into or out of the liquid storage container 10 through the first air hole 111a and the second air hole 112a.

[0103] In some embodiments, the shell body 111 is configured to form a suction nozzle for a user to suck, and the first air hole 111a is in communication with the outside of the liquid storage container 10, so that the aerosol can enter the user's oral cavity through the first air hole 111a during the user's sucking of the suction nozzle.

[0104] In some other embodiments, the support tube 113 and the shell body 111 are in an integrated structure, that is, the support tube 113 and the shell body 111 are different parts of the same part.

[0105] In this way, the number of components of the liquid storage container 10 can be reduced, and the structure of the liquid storage container 10 can be simplified.

[0106] In some embodiments, referring to Figure 2 The sealing member 112 is provided with a liquid passing hole 112b for communicating the storage cavity 10a and the atomization assembly 20, so that the aerosol generating substrate can enter the atomization assembly 20 through the liquid passing hole 112b.

[0107] In some embodiments, referring to Figure 3 and Figure 5 The flexible film 12 further includes a fixed portion 122 located at at least one end of the deformed portion 121 along the first direction and connected with the deformed portion 121, and the structural strength of the fixed portion 122 is higher than that of the deformed portion 121, for example, the thickness of the fixed portion 122 can be greater than that of the deformed portion 121. At least part of the fixed portion 122 is located in the mounting cavity and surrounds the periphery of the support tube 113 along the axis extending in the first direction, and the fixed portion 122 is in sealing contact with the support tube 113.

[0108] During the deformation of the deformed portion 121, the deformed portion 121 also exerts a force on the fixed portion 122. Because the structural strength of the fixed portion 122 is higher than that of the deformed portion 121, the fixed portion 122 is difficult to deform, thereby facilitating the fixed portion 122 to maintain a sealing state with the support tube 113, and reducing the probability of leakage of the aerosol generating substrate due to the deformation of the flexible film 12 and the joint between the flexible film 12 and the support tube 113.

[0109] In some embodiments, the material of the fixed portion 122 is the same as that of the deformed portion 121, so as to simplify the production process of the flexible film 12.

[0110] In some embodiments, the fixed portion 122 and the deformed portion 121 are in an integrated structure, that is, they are different parts of the same part. In this way, the production process of the flexible film 12 can be simplified, and the installation of the flexible film 12 is also facilitated.

[0111] In some embodiments, referring to Figure 10A portion of the fixed portion 122 is clamped between the support tube 113 and the shell body 111 to achieve a sealing fit between the support tube 113 and the shell body 111.

[0112] In some embodiments, the fixed portion 122 is provided with a mounting hole penetrating in the first direction, and the support tube 113 is arranged in the mounting hole in the first direction, and the support tube 113 is in interference fit with the inner wall of the mounting hole to achieve relative fixation of the position between the support tube 113 and the fixed portion 122.

[0113] It can be understood that in the embodiments in which the airflow passage 11c is used to discharge the aerosol from the liquid storage tank 10, the aerosol can be in contact with the inner wall of the airflow passage 11c and exchange heat.

[0114] In some embodiments, referring to Figure 3 , Figure 6 , Figure 7 and Figure 8 , the shell assembly 11 further comprises a heat insulation tube 114 located in the central hole 113a and provided with a through hole 114a and the airflow passage 11c, the through hole 114a communicates the airflow passage 11c and the air passing hole 11b, and the material of the heat insulation tube 114 has a lower thermal conductivity than the material of the support tube 113.

[0115] That is, the aerosol of the airflow passage 11c first exchanges heat with the heat insulation tube 114. Since the material of the heat insulation tube 114 has a lower thermal conductivity than the material of the support tube 113, it is more difficult for the aerosol generating substrate in the aerosol to transfer heat to the heat insulation tube 114 than to the support tube 113.

[0116] In this way, the probability of the aerosol generating substrate in the aerosol transferring heat to the inner wall of the airflow passage 11c to cause the aerosol generating substrate to re-condense to form droplets is reduced, and the efficiency of the aerosol discharge is improved.

[0117] The specific materials of the heat insulation tube 114 and the support tube 113 are not limited.

[0118] For example, the material of the support tube 113 is stainless steel, and the material of the heat insulation tube 114 is one of glass fiber and plastic.

[0119] In this way, on the one hand, the structural strength of the support tube 113 is high due to the reduction of the overall profile size of the support tube 113 and the heat insulation tube 114; on the other hand, the material of the heat insulation tube 114 has a lower thermal conductivity than the material of the support tube 113.

[0120] In other embodiments, the material of the support tube 113 is one of plastic and glass fiber.

[0121] That is, referring to Figure 11The support tube 113 alone forms the airflow passage 11c, and the aerosol directly contacts the support tube 113 and exchanges heat with the support tube 113, and the support tube 113 itself has a low thermal conductivity.

[0122] In this way, the probability of the aerosol generating substrate in the aerosol transferring heat to the inner wall of the airflow passage 11c to cause the aerosol generating substrate to re-condense to form droplets is reduced, and the efficiency of the aerosol discharge is improved.

[0123] The application also provides an atomizer, which comprises the atomization assembly 20 and the liquid storage bin 10 of any one of the preceding embodiments, and the storage cavity 10a is in communication with the atomization assembly 20 to provide the aerosol generating substrate to the atomization assembly 20.

[0124] In this way, the probability of the aerosol generating substrate leaking under the temperature and pressure changes of different external environments of the aerosol generating device is reduced.

[0125] In some embodiments, the liquid storage bin 10 is detachably connected to the atomization assembly 20, that is, referring to Figure 1 and Figure 2 The liquid storage bin 10 is an independent device and can be replaced alone, so that the liquid storage bin 10 that has run out of the aerosol generating substrate can be replaced, and a new liquid storage bin 10 can be reassembled.

[0126] In some embodiments, referring to Figure 10 The liquid storage bin 10 further comprises a mounting space, and the atomization assembly 20 is arranged in the mounting space. The liquid storage bin 10 and the atomization assembly 20 jointly form an atomizer, so that the atomizer as a whole can be disassembled and assembled in the aerosol generating device.

[0127] The application also provides an aerosol generating device, which comprises the atomizer of any one of the preceding embodiments and a battery assembly for supplying power to the atomization assembly 20.

[0128] The liquid storage bin 10 provides the aerosol generating substrate to the atomization assembly 20, the atomization assembly 20 atomizes the aerosol generating substrate by using the power provided by the battery assembly, and the atomized aerosol generating substrate mixes with the airflow in the aerosol generating device to form an aerosol.

[0129] The atomization assembly 20 atomizes the aerosol generating substrate in a manner such as heating.

[0130] The various embodiments / embodiments of the utility model can be combined with each other without producing contradictions.

[0131] The above merely describes preferred technical solutions of the present application and is not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid storage cartridge, characterized by, A liquid storage cartridge for providing an aerosol generating substrate to an atomization assembly in an aerosol generating device, the liquid storage cartridge comprising: a housing assembly provided with a receiving cavity and a gas passage, the gas passage communicating the receiving cavity with an outside of the liquid storage cartridge; a flexible membrane at least partially disposed in the receiving cavity and surrounding a portion of an inner wall of the receiving cavity to form a storage cavity for storing the aerosol generating substrate, the flexible membrane separating the storage cavity from the gas passage, the flexible membrane comprising a deformation portion located in the receiving cavity and capable of elastically deforming under a pressure difference between a pressure in the storage cavity and a pressure in the gas passage.

2. The liquid reservoir of claim 1, wherein a side of the deformation portion facing away from the storage cavity is spaced apart from the inner wall of the receiving cavity to form a movable cavity, the movable cavity being separated from the storage cavity and communicating with the gas passage, at least a portion of the deformation portion being bent to form a plurality of wrinkle portions, at least a portion of the wrinkle portions protruding towards the storage cavity.

3. The liquid reservoir of claim 1, wherein, a distance between a surface of the deformation portion facing the storage cavity and a surface of the deformation portion facing away from the storage cavity ranges from 0.25 mm to 0.4 mm.

4. The liquid reservoir of claim 1, wherein a material of the deformation portion is one of silica gel and rubber; and / or, a Shore hardness value of the deformation portion ranges from 30 degrees to 50 degrees.

5. The liquid reservoir of any one of claims 1-4, wherein, the housing assembly is provided with an airflow passage extending in a first direction, the airflow passage being configured to communicate with the atomization assembly, the receiving cavity and the deformation portion each surrounding at least a portion of a periphery of the airflow passage along an axis extending in the first direction, the gas passage communicating with the airflow passage.

6. The liquid reservoir of claim 5, wherein, the housing assembly comprises a housing body, a sealing member, and a support tube, the housing body is provided with a mounting cavity and a first gas hole, the mounting cavity is open on one side in the first direction and the first gas hole is located on the other side of the mounting cavity, the first gas hole communicates the mounting cavity with an outside of the housing body, the sealing member covers the open position of the mounting cavity, the sealing member is provided with a second gas hole extending therethrough, the support tube is located in the mounting cavity and sealingly engages with the inner wall of the mounting cavity and the sealing member to collectively form the receiving cavity, the support tube is provided with a central hole extending in the first direction, at least a portion of the central hole forms the airflow passage, two ends of the airflow passage in the first direction communicate with the first gas hole and the second gas hole respectively, the deformation portion surrounds a periphery of the support tube, and the gas passage is provided on the support tube.

7. The liquid reservoir of claim 6, wherein, the flexible membrane further comprises a fixing portion located at and connected to at least one end of the deformation portion in the first direction, a structural strength of the fixing portion is higher than that of the deformation portion, at least a portion of the fixing portion is located in the mounting cavity and surrounds a periphery of the support tube along an axis extending in the first direction, and the fixing portion sealingly engages with the support tube.

8. The liquid reservoir of claim 6, wherein, the housing assembly further comprises a heat insulation tube located in the central hole and provided with a through hole and the airflow passage, the through hole communicates the airflow passage and the gas passage, and a thermal conductivity coefficient of a material of the heat insulation tube is lower than that of a material of the support tube. Alternatively, the material of the support tube is one of plastic, glass fiber.

9. An atomiser characterised in that, The atomizer comprises an atomization assembly and the liquid storage tank of any one of claims 1 to 8, the storage cavity being able to communicate with the atomization assembly to provide the aerosol generating substrate to the atomization assembly.

10. An aerosol-generating device comprising: The aerosol generating device comprises a battery assembly and the atomizer of claim 9, the battery assembly being used to supply power to the atomization assembly.

Images