Sealing structure of liquid storage assembly, liquid storage assembly, and aerosol-generating device

Abstract

The application provides a sealing structure of a liquid storage assembly, the liquid storage assembly and an aerosol generating device, and belongs to the field of aerosol generating devices. The sealing structure of the liquid storage assembly comprises a bottom cover and a sealing piece, the sealing piece is injection molded on the bottom cover, the sealing piece comprises a connecting part and a plurality of sealing parts, the plurality of sealing parts are located at different parts of the bottom cover, and the plurality of sealing parts are connected into one body through the plurality of connecting parts. By arranging the sealing piece on the bottom cover, the sealing piece comprises a plurality of connecting parts and a plurality of sealing parts for providing a sealing effect, the sealing piece is injection molded on the bottom cover, and the plurality of sealing parts are connected into one body through the plurality of connecting parts, so that the assembly of the sealing piece is not needed, the production efficiency is improved, and the sealing piece is prevented from being damaged.

Description

Technical Field

[0001] This application relates to the field of aerosol generating devices, and particularly to a sealing structure for a liquid storage component, a liquid storage component, and an aerosol generating device. Background Technology

[0002] Some aerosol generating devices include an atomizer and a replaceable reservoir assembly, which provides the aerosol matrix to the atomizer.

[0003] The liquid storage assembly includes a housing and a bottom cover, with the bottom cover connected to the housing to form a liquid storage chamber. To prevent leakage, multiple seals are provided on the surface of the bottom cover to seal areas such as the connection between the bottom cover and the housing, and the connection between the bottom cover and the atomizer.

[0004] In the currently discovered related technologies, multiple seals need to be assembled when assembling liquid storage components. This not only makes the assembly process cumbersome and affects production efficiency, but also may cause the seals to be damaged due to excessive stress during the assembly process, thus affecting the sealing performance. Utility Model Content

[0005] This application provides a sealing structure for a liquid storage component, a liquid storage component, and an aerosol generating device, which can improve production efficiency and prevent damage to the seals. The technical solution is as follows:

[0006] In a first aspect, embodiments of this application provide a sealing structure for a liquid storage component. The sealing structure includes a bottom cover and a sealing element. The sealing element is injection molded onto the bottom cover. The sealing element includes a connecting portion and multiple sealing portions. The multiple sealing portions are located at different parts of the bottom cover and are connected as a whole through the connecting portion.

[0007] In some examples, the bottom cover includes a mating portion, a first annular portion and a second annular portion, a receiving groove is provided on a first side of the mating portion, the first annular portion and the second annular portion are connected to the second side opposite to the mating portion, and the second annular portion surrounds the first annular portion;

[0008] The plurality of sealing portions include a first sealing portion located on the inner sidewall of the first annular portion, a second sealing portion located on the outer sidewall of the second annular portion, and a third sealing portion located in the receiving groove.

[0009] In some examples, the second annular portion has a first through hole; the connecting portion includes a first connecting portion, one end of which is connected to the first sealing portion, and the other end of which passes through the first through hole and is connected to the second sealing portion.

[0010] In some examples, the first through hole is located at the connection between the second annular portion and the mating portion; the first connecting portion is attached to the outer wall of the first annular portion and the first side of the mating portion.

[0011] In some examples, a plurality of first connecting portions are connected between the first sealing portion and the second sealing portion, and the plurality of first connecting portions are spaced apart along the first annular portion.

[0012] In some examples, the docking portion has a second through hole located outside the second annular portion, and the second through hole communicates with the receiving groove;

[0013] The connecting part includes a second connecting part, one end of which is connected to the second sealing part, and the other end of which passes through the second through hole and is connected to the third sealing part.

[0014] In some examples, the outer wall of the second annular portion has a first strip groove that extends axially along the second annular portion to communicate with the second through hole;

[0015] The inner wall of the second sealing part has a first protruding ridge, which is located in the first strip groove and is connected to the second connecting part.

[0016] In some examples, the inner wall of the receiving groove has a second strip groove that extends along the depth direction of the receiving groove to communicate with the second through hole;

[0017] The outer wall of the third sealing part has a second protruding ridge, which is located in the second strip groove and is connected to the second connecting part.

[0018] In some examples, the mating portion has a first insertion hole, a second insertion hole, and a third insertion hole. The first insertion hole communicates with the first annular portion, and the second insertion hole and the third insertion hole are both distributed between the first annular portion and the second annular portion. The second insertion hole and the third insertion hole are symmetrically distributed about the center of the first insertion hole.

[0019] The third sealing part has a fourth insertion hole, a fifth insertion hole and a sixth insertion hole. The fourth insertion hole is aligned with the first insertion hole, the fifth insertion hole is aligned with the second insertion hole, and the sixth insertion hole is aligned with the third insertion hole.

[0020] In some examples, the inner wall of the receiving groove also has two arc-shaped grooves, one of which is located on the side of the second insertion hole away from the first insertion hole, and the other of which is located on the side of the third insertion hole away from the first insertion hole, and the arc-shaped grooves extend along the depth direction of the receiving groove.

[0021] The outer wall of the third sealing part has two arc-shaped protrusions, which are distributed one-to-one in the two arc-shaped grooves.

[0022] In some examples, the bottom of the receiving groove is provided with a plurality of protrusions, which are inserted into the third sealing part.

[0023] Secondly, embodiments of this application also provide a liquid storage assembly, the liquid storage assembly including a housing portion and any of the sealing structures described in the first aspect, one end of the housing portion having an opening, the bottom cover being located in the opening, and at least one of the sealing portions forming a seal with the inner sidewall of the housing portion.

[0024] Thirdly, embodiments of this application also provide an aerosol generating device, the aerosol generating device including an atomizer and any of the liquid storage components as described in the second aspect, the liquid storage component being connected to the atomizer and used to provide an aerosol matrix to the atomizer.

[0025] The beneficial effects of the technical solutions provided in this application include at least the following:

[0026] By setting a seal on the bottom cover, the seal includes a connecting part and multiple sealing parts that provide a sealing function. The seal is injection molded onto the bottom cover, and the multiple sealing parts are connected as one piece by the connecting part, so that there is no need to assemble the seal, which helps to improve production efficiency and avoid damage to the seal. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the structure of an atomizer provided in an embodiment of this application;

[0030] Figure 3This is an exploded structural diagram of a liquid storage component provided in an embodiment of this application;

[0031] Figure 4 This is a schematic diagram of a sealing structure provided in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the structure of a bottom cover provided in an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the assembly of a liquid storage component and an atomizer housing provided in an embodiment of this application;

[0034] Figure 7 This is a schematic diagram of the structure of a bottom cover provided in an embodiment of this application;

[0035] Figure 8 This is a schematic diagram of the structure of a sealing element provided in an embodiment of this application;

[0036] Figure 9 yes Figure 4 Section I-I in the diagram;

[0037] Figure 10 yes Figure 4 Section II-II in the diagram;

[0038] Figure 11 This is a schematic diagram of the bottom structure of a sealing structure provided in an embodiment of this application;

[0039] Figure 12 This is a schematic diagram of an aerosol generating device provided in an embodiment of this application.

[0040] Icon labels:

[0041] 100-Liquid storage assembly, 10-Housing portion, 20-Sealing structure, 21-Bottom cover, 211-Mating portion, 2111-Protrusion, 211a-Receiving groove, 211b-First insertion hole, 211c-Second insertion hole, 211d-Third insertion hole, 211e-Second through hole, 211f-Second strip groove, 211g-Arc groove, 212-First annular portion, 213-Second annular portion, 213a-First through hole, 213b-First strip groove, 22-Sealing element, 220-Sealing portion, 221-First sealing portion, 222-Second sealing portion, 2221-First protruding ridge, 22 3-Third sealing part, 2231-Second protruding ridge, 2232-Arc-shaped protrusion, 223a-Fourth insertion hole, 223b-Fifth insertion hole, 223c-Sixth insertion hole, 230-Connecting part, 231-First connecting part, 232-Second connecting part, 300-Atomizer, 311-Atomizer housing, 312-Liquid inlet pipe, 313-Exhaust pipe, 314-First aerosol discharge pipe, 320-Atomizing assembly, 320a-Atomizing channel, 321-Bracket, 322-Liquid guide, 323-Heating element, 324-Pin, 400-Nose, 401-Second aerosol discharge pipe. Detailed Implementation

[0042] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0043] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0044] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0045] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means two or more.

[0048] Figure 1 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application, as shown below. Figure 1 As shown, the aerosol generating device includes a liquid storage assembly 100 and an atomizer 300. The liquid storage assembly 100 is used to provide an aerosol matrix to the atomizer 300.

[0049] Figure 2 This is a schematic diagram of the structure of an atomizer provided in an embodiment of this application, as shown below. Figure 2As shown, the atomizer 300 includes an atomizer housing 311. One end of the atomizer housing 311 is provided with a liquid inlet pipe 312, an exhaust pipe 313, and a first aerosol discharge pipe 314. The liquid inlet pipe 312 and the exhaust pipe 313 are used to connect to the liquid storage chamber of the liquid storage assembly 100. The aerosol matrix in the liquid storage assembly 100 can enter the atomizer 300 through the liquid inlet pipe 312, while the air in the atomizer 300 enters the liquid storage assembly 100 through the exhaust pipe 313 to maintain the pressure balance in the liquid storage assembly 100. The first aerosol discharge pipe 314 is connected to the liquid storage assembly 100. The aerosol discharged from the first aerosol discharge pipe 314 passes through the liquid storage assembly 100 and is discharged from the mouthpiece 400. The mouthpiece 400 can be detachably connected to the liquid storage assembly 100, or the mouthpiece 400 can be an integral part of the liquid storage assembly 100.

[0050] Figure 3 This is an exploded structural diagram of a liquid storage component provided in an embodiment of this application, as shown below. Figure 3 As shown, the liquid storage assembly 100 may include a housing portion 10 and a sealing structure 20. One end of the housing portion 10 has an opening. The sealing structure 20 includes a bottom cover 21 and a seal 22. The bottom cover 21 is located in the opening and forms a liquid storage chamber with the housing portion 10. The seal 22 is disposed on the bottom cover 21. The seal 22 may include a plurality of sealing portions 220, wherein at least one sealing portion 220 forms a seal with the inner wall of the housing portion 10.

[0051] The seal 22 is injection molded onto the bottom cover 21. The seal 22 includes a connecting portion 230 and multiple sealing portions 220, which are located at different parts of the bottom cover 21 and are connected as one unit by the connecting portion 230.

[0052] By providing a seal 22 on the bottom cover 21, the seal 22 includes a connecting part 230 and a plurality of sealing parts 220 that provide a sealing function. The seal 22 is injection molded onto the bottom cover 21, and the plurality of sealing parts 220 are connected as one piece by the connecting part 230, so that there is no need to assemble the seal 22, which is beneficial to improving production efficiency and avoiding damage to the seal.

[0053] Figure 4 This is a schematic diagram of a sealing structure provided in an embodiment of this application, as shown below. Figure 4 As shown, the bottom cover 21 includes a docking portion 211, a first annular portion 212, and a second annular portion 213. Figure 5 This is a schematic diagram of the structure of a bottom cover provided in an embodiment of this application, as shown below. Figure 5 As shown, a receiving groove 211a is provided on the first side of the docking portion 211. A first annular portion 212 and a second annular portion 213 are connected to the opposite second side of the docking portion 211, with the second annular portion 213 surrounding the first annular portion 212. The first side and the second side are two sides opposite to each other in the axial direction of the docking portion 211.

[0054] The docking part 211 is used to connect with the atomizer 300, and the first annular part 212 is used to connect to the mouthpiece 400 so that the aerosol released by the atomizer 300 can pass through the liquid storage assembly 100. The second annular part 213 is used to cooperate with the inner side wall of the housing part 10 so that the bottom cover 21 and the housing part 10 are assembled as one piece.

[0055] Figure 6 This is a schematic diagram of the assembly of a liquid storage component and an atomizer housing provided in an embodiment of this application, as shown below. Figure 6 As shown, as an example, the housing portion 10 has a suction nozzle 400 integrally formed at one end away from its opening. The housing portion 10 is also provided with a second aerosol discharge pipe 401. One end of the second aerosol discharge pipe 401 is connected to the suction nozzle 400, and the other end is used to connect to the first annular portion 212.

[0056] Combination Figure 5 The mating portion 211 may have a first insertion hole 211b, a second insertion hole 211c, and a third insertion hole 211d. The first insertion hole 211b communicates with the first annular portion 212. The second insertion hole 211c and the third insertion hole 211d are located between the first annular portion 212 and the second annular portion 213.

[0057] The first aerosol discharge pipe 314 can be inserted into the first insertion hole 211b, the liquid inlet pipe 312 can be inserted into the second insertion hole 211c, and the exhaust pipe 313 can be inserted into the third insertion hole 211d.

[0058] In some examples, the second insertion hole 211c and the third insertion hole 211d can be symmetrically distributed about the center of the first insertion hole 211b, thereby making it easier to assemble the liquid storage assembly 100 with the atomizer 300.

[0059] When assembling the liquid storage assembly 100 and the atomizer 300, the liquid inlet pipe 312 can also be inserted into the third insertion hole 211d, and the exhaust pipe 313 can also be inserted into the second insertion hole 211c. That is to say, even if the atomizer 300 is rotated 180° and the positions of the liquid inlet pipe 312 and the exhaust pipe 313 are reversed, the liquid storage assembly 100 and the atomizer 300 can still be assembled normally.

[0060] like Figure 4As shown, the plurality of sealing portions 220 include a first sealing portion 221, a second sealing portion 222, and a third sealing portion 223. The first sealing portion 221 is located on the inner wall of the first annular portion 212, sealing the gap between the first annular portion 212 and the second aerosol discharge pipe 401. The second sealing portion 222 is located on the outer wall of the second annular portion 213, sealing the gap between the second annular portion 213 and the housing portion 10. The third sealing portion 223 is located in the receiving groove 211a, sealing the gap between the connecting portion 211 and the atomizer 300.

[0061] Sealing parts 220 are provided at different locations on the bottom cover 21 to seal multiple gaps, thereby improving the sealing performance of the liquid storage assembly 100.

[0062] Figure 7 This is a schematic diagram of the structure of a bottom cover provided in an embodiment of this application, as shown below. Figure 7 As shown, the second annular portion 213 has a first through hole 213a. Figure 8 This is a structural schematic diagram of a sealing element provided in an embodiment of this application, as shown below. Figure 8 As shown, the connecting part 230 includes a first connecting part 231, one end of which is connected to the first sealing part 221 and the other end is connected to the second sealing part 222.

[0063] Figure 9 yes Figure 4 Section I-I in the diagram, as shown Figure 9 As shown, the other end of the first connecting part 231 passes through the first through hole 213a and is connected to the second sealing part 222.

[0064] The first sealing part 221 and the second sealing part 222 are arranged at different positions on the bottom cover 21. By providing a first through hole 213a that penetrates the second annular part 213, when the seal 22 is manufactured using injection molding, material can flow through the first through hole 213a from the location of the first sealing part 221 to the location of the second sealing part 222, or from the location of the second sealing part 222 to the location of the first sealing part 221. The first through hole 213a can guide the flow of material, facilitating the formation of the seal 22.

[0065] For example, the seal 22 can be a silicone part, which is more suitable for manufacturing by injection molding.

[0066] There can be multiple first through holes 213a, which can be distributed circumferentially along the second annular portion 213. Multiple first connecting portions 231 connect the first sealing portion 221 and the second sealing portion 222, and these first connecting portions 231 are distributed circumferentially along the first annular portion 212. Providing multiple first through holes 213a and forming multiple first connecting portions 231 facilitates material flow during injection molding, improves the yield of the seal 22 in the injection molding process, and avoids localized material loss in the formed seal 22.

[0067] For example, in this example, the second annular portion 213 has two first through holes 213a, which are arranged at 180° intervals. Arranging multiple first through holes 213a in a symmetrical manner is more conducive to material flow and improves the uniformity of material distribution.

[0068] In some examples, the first through hole 213a is located at the connection between the second annular portion 213 and the mating portion 211. The first connecting portion 231 is attached to the outer wall of the first annular portion 212 and the first side of the mating portion 211.

[0069] The first through hole 213a is set at the connection between the second annular portion 213 and the mating portion 211, so that the first through hole 213a is as close as possible to the mating portion 211. This is beneficial for the material to flow along the surface of the bottom cover 21 during the injection molding process, forming a first connecting portion 231 that adheres to the outer wall of the first annular portion 212 and the surface of the mating portion 211.

[0070] like Figure 7 As shown, the mating portion 211 has a second through hole 211e, which is located outside the second annular portion 213. The second through hole 211e communicates with the receiving groove 211a. The connecting portion 230 includes a second connecting portion 232, one end of which is connected to the second sealing portion 222, and the other end of which passes through the second through hole 211e and is connected to the third sealing portion 223.

[0071] The second sealing part 222 and the third sealing part 223 are arranged at different positions on the bottom cover 21. By providing a second through hole 211e that penetrates the mating part 211, when the seal 22 is manufactured using injection molding, material can flow through the second through hole 211e from the location of the second sealing part 222 to the location of the third sealing part 223, or from the location of the third sealing part 223 to the location of the second sealing part 222. The second through hole 211e can guide the flow of material, facilitating the formation of the seal 22.

[0072] There can be multiple second through holes 211e, which can be distributed circumferentially along the second annular portion 213. Multiple second connecting portions 232 connect the second sealing portion 222 and the third sealing portion 223, and these connecting portions 232 are also distributed circumferentially along the second annular portion 213. Providing multiple second through holes 211e and forming multiple second connecting portions 232 facilitates material flow during injection molding and improves the yield of the sealing component 22 in the injection molding process.

[0073] For example, in this example, the mating part 211 has four second through holes 211e, which are arranged at 90° intervals. Arranging multiple second through holes 211e in a symmetrical manner is more conducive to material flow and improves the uniformity of material distribution.

[0074] like Figure 7 As shown, the outer wall of the second annular portion 213 has a first strip groove 213b, which extends axially along the second annular portion 213 to communicate with the second through hole 211e. Figure 8 As shown, the inner wall of the second sealing part 222 has a first protruding ridge 2221, which is located in the first strip groove 213b and is connected to the second connecting part 232.

[0075] During injection molding, the material can flow along the first groove 213b. The first ridge 2221 effectively increases the thickness of a local area of ​​the second sealing portion 222, facilitating material flow and promoting the formation of a uniformly distributed material in the second sealing portion 222. The first ridge 2221 is also connected to the second connecting portion 232, which helps the material flow from the location of the second sealing portion 222 to the location of the third sealing portion 223 or vice versa. Furthermore, the first ridge 2221 and the first groove 213b can increase the contact area between the second sealing portion 222 and the second annular portion 213, making the connection between the second sealing portion 222 and the second annular portion 213 tighter.

[0076] In some examples, the first groove 213b may communicate with the first through hole 213a so that a connected first connection 231 and a second connection 232 can be formed, which facilitates the flow of material between the locations of the plurality of seals 220 during the injection molding process.

[0077] For example, in this example, the two first through holes 213a are connected one-to-one with two of the four first strip grooves 213b, so that the two first connecting parts 231 formed are connected one-to-one with two of the four second connecting parts 232.

[0078] like Figure 5As shown, the inner wall of the receiving groove 211a has a second strip groove 211f, which extends along the depth direction of the receiving groove 211a to communicate with the second through hole 211e. The outer wall of the third sealing part 223 has a second protruding ridge 2231, which is located in the second strip groove 211f and is connected to the second connecting part 232.

[0079] During injection molding, the material can flow along the second groove 211f. The second ridge 2231 effectively increases the thickness of a local area of ​​the third sealing portion 223, facilitating material flow and promoting the formation of a uniformly distributed material in the third sealing portion 223. The second ridge 2231 is also connected to the second connecting portion 232, facilitating material flow from the location of the second sealing portion 222 to the location of the third sealing portion 223 or vice versa. Furthermore, the second ridge 2231 and the second groove 211f can increase the contact area between the third sealing portion 223 and the mating portion 211, resulting in a tighter connection between the third sealing portion 223 and the mating portion 211.

[0080] Figure 10 yes Figure 4 Section II-II in the diagram, as shown Figure 10 As shown, the third sealing part 223 has a fourth insertion hole 223a, a fifth insertion hole 223b, and a sixth insertion hole 223c. The fourth insertion hole 223a is aligned with the first insertion hole 211b, the fifth insertion hole 223b is aligned with the second insertion hole 211c, and the sixth insertion hole 223c is aligned with the third insertion hole 211d.

[0081] When assembling the atomizer 300 and the liquid storage assembly 100, the first aerosol discharge pipe 314 can be inserted into the fourth insertion hole 223a to form a seal with the third sealing part 223; the liquid inlet pipe 312 can be inserted into the fifth insertion hole 223b to form a seal with the third sealing part 223; and the exhaust pipe 313 can be inserted into the sixth insertion hole 223c to form a seal with the third sealing part 223.

[0082] The inner walls of the fourth insertion hole 223a, the fifth insertion hole 223b and the sixth insertion hole 223c are all provided with sealing ribs, which can improve the sealing performance of the seal 22.

[0083] like Figure 5 As shown, the inner wall of the receiving groove 211a also has two arc-shaped grooves 211g. One of the two arc-shaped grooves 211g is located on the side of the second insertion hole 211c away from the first insertion hole 211b, and the other arc-shaped groove 211g is located on the side of the third insertion hole 211d away from the first insertion hole 211b. The arc-shaped grooves 211g extend along the depth direction of the receiving groove 211a. Figure 8As shown, the outer wall of the third sealing part 223 has two arc-shaped protrusions 2232, which are distributed one-to-one in the two arc-shaped grooves 211g.

[0084] Because the third sealing part 223 is provided with a first insertion hole 211b, a second insertion hole 211c, and a third insertion hole 211d, the space of the third sealing part 223 is limited, resulting in a small material thickness between the edge of the first insertion hole 211b and the inner wall of the receiving groove 211a, and a small material thickness between the edge of the third insertion hole 211d and the inner wall of the receiving groove 211a. This leads to relatively low structural strength and relatively poor sealing performance. The arc-shaped protrusion 2232, which fits into the arc-shaped groove 211g, effectively increases the local material thickness of the third sealing part 223, which helps improve structural strength and the sealing performance of the local area.

[0085] like Figure 5 As shown, the bottom of the receiving groove 211a may also be provided with multiple protrusions 2111. Figure 11 This is a schematic diagram of the bottom structure of a sealing structure provided in an embodiment of this application, as shown below. Figure 11 As shown, multiple protrusions 2111 are inserted into the third sealing part 223.

[0086] The protrusion 2111 inserted into the third sealing part 223 not only increases the contact area between the third sealing part 223 and the bottom cover 21, making the third sealing part 223 more secure within the receiving groove 211a, but also disperses the pressure when material is injected into the receiving groove 211a during injection molding, avoiding excessive local stress. Furthermore, the protrusion 2111 provides support for the third sealing part 223, preventing it from becoming loose from the sidewall or bottom of the receiving groove 211a due to external forces, thus improving the overall structural strength of the sealing structure.

[0087] Figure 12 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application, as shown below. Figure 12 As shown, the atomizer 300 also includes an atomizer housing 311 and an atomizing component 320. The aerosol matrix entering the atomizer 300 from the liquid storage component 100 can be stored in the atomizer housing 311. The atomizing component 320 is located in the atomizer housing 311 and is used to heat the aerosol matrix to form an aerosol. The atomizing component 320 has an atomizing channel 320a.

[0088] During the operation of the aerosol generating device, the atomizing component 320 gradually consumes the aerosol matrix within the atomizer housing 311. When the user inhales, the air pressure inside the atomizer housing 311 decreases. Under this pressure, the aerosol matrix in the liquid storage component 100 enters the atomizer housing 311 through the inlet pipe 312, replenishing the aerosol matrix within the atomizer housing 311. Simultaneously, air in the atomizer housing 311 flows into the liquid storage component 100 through the exhaust pipe 313.

[0089] The liquid inlet pipe 312, the exhaust pipe 313 and the first aerosol discharge pipe 314 can be located at the same end of the atomizer housing 311. An electrode can also be provided at the other end of the atomizer housing 311, and the electrode is electrically connected to the atomizing component 320.

[0090] The atomizer housing 311 of the atomizer 300 may also include a liquid reservoir 216. The atomizing assembly 320 may be inserted into the liquid reservoir 216.

[0091] As an example, the atomizing assembly 320 may include a support 321, a liquid guide 322, a heating element 323, and a pin 324. The support 321 forms an atomizing channel 320a, and the liquid guide 322 and the heating element 323 are located within the support 321. The heating element 323 may be connected to the pin 324, and electrically connected to an electrode mounted at the end of the atomizer housing 311 via the pin 324.

[0092] The support 321 provides space inside the atomizer housing 311 to accommodate and support the liquid guide 322 and the heating element 323. The support 321 may be cylindrical, and its wall may have holes, slits, or other structures to allow the aerosol matrix in the atomizer housing 311 to enter the atomization channel 320a and be absorbed by the liquid guide 322. The heating element 323 heats the aerosol matrix in the liquid guide 322 to form an aerosol.

[0093] For example, the heating element 323 may be made of one or more of iron-chromium-aluminum alloy, nickel-chromium alloy, and stainless steel alloy, such as iron-chromium-aluminum material.

[0094] The material and structure of the heating element 323 are not limited, as long as it can generate heat. For example, the heating element 323 may include at least one of the following: heating mesh, heating film, heating wire, and heating plate.

[0095] For example, pin 324 may be made of nickel, such as Ni200. Pin 324 may be soldered to heating element 323.

[0096] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A sealing structure for a liquid storage assembly, characterized in that, It includes a bottom cover (21) and a sealing element (22). The sealing element (22) is injection molded on the bottom cover (21). The sealing element (22) includes a connecting part (230) and a plurality of sealing parts (220). The plurality of sealing parts (220) are located at different parts of the bottom cover (21). The plurality of sealing parts (220) are connected as one unit through the connecting part (230).

2. The sealing structure according to claim 1, characterized in that, The bottom cover (21) includes a docking portion (211), a first annular portion (212), and a second annular portion (213). A receiving groove (211a) is provided on the first side of the docking portion (211). The first annular portion (212) and the second annular portion (213) are both connected to the second opposite sides of the docking portion (211). The second annular portion (213) surrounds the first annular portion (212). The plurality of sealing portions (220) include a first sealing portion (221) located on the inner sidewall of the first annular portion (212), a second sealing portion (222) located on the outer sidewall of the second annular portion (213), and a third sealing portion (223) located in the receiving groove (211a).

3. The sealing structure according to claim 2, characterized in that, The second annular portion (213) has a first through hole (213a); the connecting portion (230) includes a first connecting portion (231), one end of the first connecting portion (231) is connected to the first sealing portion (221), and the other end of the first connecting portion (231) passes through the first through hole (213a) and is connected to the second sealing portion (222).

4. The sealing structure according to claim 3, characterized in that, The first through hole (213a) is located at the connection between the second annular portion (213) and the docking portion (211); the first connecting portion (231) is attached to the outer wall of the first annular portion (212) and the first side of the docking portion (211).

5. The sealing structure according to claim 3, characterized in that, A plurality of first connecting portions (231) are connected between the first sealing portion (221) and the second sealing portion (222), and the plurality of first connecting portions (231) are distributed at intervals along the first annular portion (212).

6. The sealing structure according to any one of claims 2 to 5, characterized in that, The docking portion (211) has a second through hole (211e), which is located outside the second annular portion (213) and communicates with the receiving groove (211a); The connecting part (230) includes a second connecting part (232), one end of which is connected to the second sealing part (222), and the other end of which passes through the second through hole (211e) and is connected to the third sealing part (223).

7. The sealing structure according to claim 6, characterized in that, The outer wall of the second annular portion (213) has a first strip groove (213b), which extends along the axial direction of the second annular portion (213) to communicate with the second through hole (211e); The inner wall of the second sealing part (222) has a first protruding ridge (2221), which is located in the first strip groove (213b) and is connected to the second connecting part (232).

8. The sealing structure according to claim 7, characterized in that, The inner wall of the receiving groove (211a) has a second strip groove (211f), which extends along the depth direction of the receiving groove (211a) to communicate with the second through hole (211e); The outer wall of the third sealing part (223) has a second protruding ridge (2231), which is located in the second strip groove (211f) and is connected to the second connecting part (232).

9. The sealing structure according to any one of claims 2-5 and 7-8, characterized in that, The docking portion (211) has a first insertion hole (211b), a second insertion hole (211c), and a third insertion hole (211d). The first insertion hole (211b) communicates with the first annular portion (212). The second insertion hole (211c) and the third insertion hole (211d) are both distributed between the first annular portion (212) and the second annular portion (213). The second insertion hole (211c) and the third insertion hole (211d) are symmetrically distributed about the center of the first insertion hole (211b). The third sealing part (223) has a fourth insertion hole (223a), a fifth insertion hole (223b) and a sixth insertion hole (223c). The fourth insertion hole (223a) is aligned with the first insertion hole (211b), the fifth insertion hole (223b) is aligned with the second insertion hole (211c), and the sixth insertion hole (223c) is aligned with the third insertion hole (211d).

10. The sealing structure according to claim 9, characterized in that, The inner wall of the receiving groove (211a) also has two arc-shaped grooves (211g). One of the two arc-shaped grooves (211g) is located on the side of the second insertion hole (211c) away from the first insertion hole (211b), and the other of the two arc-shaped grooves (211g) is located on the side of the third insertion hole (211d) away from the first insertion hole (211b). The arc-shaped grooves (211g) extend along the depth direction of the receiving groove (211a). The outer wall of the third sealing part (223) has two arc-shaped protrusions (2232), which are distributed one-to-one in the two arc-shaped grooves (211g).

11. The sealing structure according to any one of claims 2-5, 7-8, and 10, characterized in that, The bottom of the receiving groove (211a) is provided with a plurality of protrusions (2111), which are inserted into the third sealing part (223).

12. A liquid storage assembly, characterized in that, Includes a housing portion (10) and a sealing structure (20) as described in any one of claims 1 to 11, wherein one end of the housing portion (10) has an opening, the bottom cover (21) is located in the opening, and at least one of the sealing portions (220) forms a seal with the inner sidewall of the housing portion (10).

13. An aerosol generating device, characterized in that, It includes an atomizer (300) and a reservoir assembly (100) as claimed in claim 12, the reservoir assembly (100) being connected to the atomizer (300) for providing an aerosol matrix to the atomizer (300).

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