Atomizing device

Abstract

The application discloses an atomizing device, which comprises an atomizing tube, an atomizing core, a first liquid guide body and a liquid storage cavity. At least one liquid guide hole and at least one capillary groove are arranged on the wall of the atomizing tube and are in communication. The atomizing core is arranged inside the cavity of the atomizing tube and at least partially faces the liquid guide hole. The first liquid guide body is wrapped around the periphery of the atomizing tube and covers the liquid guide hole and the capillary groove. The liquid storage cavity and the first liquid guide body are in fluid communication. Since the liquid guide hole and the capillary groove are arranged on the wall of the atomizing tube and are in communication, the atomized base stored in the second liquid guide body can be sucked into the capillary groove with the help of capillary force and then be conducted to the liquid guide hole and the atomizing core, so that the liquid guiding of the atomizing core is smooth.

Description

Technical Field

[0001] This utility model relates to the field of atomization technology, and in particular to an atomization device. Background Technology

[0002] An atomizing device is a product that heats and atomizes an atomizing matrix into an aerosol. The core component of an atomizing device is the atomizing coil. The atomizing coil is connected to the oil reservoir, and the liquid atomizing matrix stored in the oil reservoir is heated and atomized to generate an aerosol. In related technologies, the oil reservoir is often equipped with oil-retaining cotton to lock in the liquid atomizing matrix and reduce leakage. However, there is usually an atomizing tube between the oil-retaining cotton and the vertical atomizing coil, using liquid guiding holes on the atomizing tube to connect the oil-retaining cotton outside the tube and the atomizing coil inside the tube. However, because the atomizing tube has a certain thickness, and both the atomizing coil and the oil-retaining cotton on both sides of the liquid guiding hole are solid, the liquid absorbed by the oil-retaining cotton outside the atomizing tube has difficulty passing through the liquid guiding hole into the atomizing coil inside the atomizing tube, causing difficulties in liquid guiding to the atomizing coil, resulting in insufficient liquid supply or coil clogging. Utility Model Content

[0003] The technical problem to be solved by this application is to provide an improved atomizing device in response to at least one of the defects mentioned in the background art.

[0004] In some embodiments, an atomizing device is provided, comprising an atomizing tube, an atomizing core, a first guiding liquid, and a storage chamber; the atomizing tube has at least one communicating guiding hole and at least one capillary groove on its wall; the atomizing core is disposed inside the cavity of the atomizing tube, and the atomizing core is at least partially facing the guiding hole; the first guiding liquid surrounds the periphery of the atomizing tube and covers the guiding hole and the capillary groove. The storage chamber and the first guiding liquid are in fluid communication.

[0005] In some embodiments, the atomizing core includes a second liquid guide and a heating element. The second liquid guide is disposed inside the cavity of the atomizing tube and is at least partially opposite the liquid guide hole. The second liquid guide is in contact with the tube wall of the atomizing tube, and the heating element is in contact with the second liquid guide.

[0006] In some embodiments, at least one of the capillary grooves is located below the liquid guide hole.

[0007] In some embodiments, the atomizing device further includes a sealing seat, the sealing seat having a recessed mounting groove, the opening of the mounting groove facing the liquid storage chamber, and the end of the atomizing tube away from the liquid storage chamber and the end of the first liquid guide away from the liquid storage chamber being fixed in the mounting groove.

[0008] In some embodiments, the atomizing device further includes a housing, the sealing seat and the housing are sealed together, the sealing seat, the atomizing tube and the housing together define the liquid storage chamber, the first liquid guide is located in the liquid storage chamber; one end of the atomizing tube facing away from the sealing seat is fitted with the housing to define an aerosol channel for aerosol outflow.

[0009] In some embodiments, the housing includes a housing body and an air guide tube; the sealing seat and the housing body are sealed together, one end of the atomizing tube facing away from the sealing seat is connected to the air guide tube, and the sealing seat, the atomizing tube, the housing body and the air guide tube together define the liquid storage chamber; one end of the atomizing tube facing away from the sealing seat extends into the cavity of the air guide tube and is fixed, and one end of the air guide tube near the sealing seat is in contact with one end of the first liquid guide tube near the liquid storage chamber.

[0010] In some embodiments, the end face of the first liquid guide near the end of the liquid storage cavity includes a first region and a second region, the first region abutting against the housing, and the second region not contacting the housing to be exposed to the liquid storage cavity.

[0011] In some embodiments, at least a portion of the outer peripheral surface of the first liquid guide is spaced from the circumferential groove wall of the mounting groove, such that at least a portion of the outer peripheral surface of the first liquid guide is exposed to the liquid storage cavity.

[0012] In some embodiments, the atomizing device further includes a housing, the sealing seat and the housing are sealed together, the sealing seat, the atomizing tube and the housing together define the liquid storage chamber, the first liquid guide is located in the liquid storage chamber; the housing is a transparent housing at least in the area corresponding to the liquid storage chamber, and the end of the first liquid guide away from the sealing seat does not extend beyond the top surface of the sealing seat facing the liquid storage chamber.

[0013] In some embodiments, the mounting groove includes a first groove and a second groove, the first groove is located on the side of the second groove away from the liquid storage cavity, the lateral dimension of the first groove is smaller than the lateral dimension of the second groove, the end of the atomizing tube away from the liquid storage cavity is fixedly engaged with the side wall of the first groove, and the end of the first liquid guide away from the liquid storage cavity is fixedly engaged with the side wall of the second groove.

[0014] According to the atomizing device of the above embodiment, since the tube wall of the atomizing tube is provided with a connected liquid guiding hole and a capillary groove, with the help of capillary force, the atomizing matrix stored in the second liquid guiding hole will be drawn into the capillary groove and then conducted to the liquid guiding hole and the atomizing core, which is conducive to the smooth liquid guiding of the atomizing core. Attached Figure Description

[0015] Figure 1 These are three-dimensional structural schematic diagrams of the atomizing device in some embodiments;

[0016] Figure 2 These are schematic diagrams of longitudinal cross-sectional structures of the atomizing device in some embodiments;

[0017] Figure 3 yes Figure 2 A magnified schematic diagram of part A of the atomizing device shown.

[0018] Figure 4 yes Figure 2 A schematic diagram of the exploded structure of the atomizing device shown.

[0019] Figure 5 This is a cross-sectional structural schematic diagram of the sealing seat of the atomizing device in some embodiments;

[0020] Figure 6 yes Figure 1 A schematic diagram of the exploded structure of the atomizing device shown.

[0021] Figure 7 This is a schematic diagram showing the exploded structure of the atomizing component and the first liquid guide of the atomizing device in some embodiments;

[0022] Figure 8 yes Figure 7 A further exploded structural diagram of the component shown;

[0023] The reference numerals in the attached figures are as follows:

[0024] 1-Atomizing tube, 10-Liquid guiding hole, 11-Capillary groove;

[0025] 2-Atomizing core, 20-Second liquid guide, 21-Heating element, 23-Liquid inlet surface, 24-Atomizing surface;

[0026] 3-First guiding liquid, 31-First region, 32-Second region;

[0027] 4-Liquid reservoir;

[0028] 5-Sealing seat, 50-Mounting groove, 51-First groove, 52-Second groove, 53-Top surface;

[0029] 6-Shell shell, 60-Opening, 61-Shell body, 62-Gas duct;

[0030] 7-interval;

[0031] 8-Aerosol channel. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0033] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0034] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0035] The "above" direction mentioned below can be used as a reference. Figure 2 In the U-direction, the "down" direction can be referenced. Figure 2 In the D direction.

[0036] Please see Figures 1 to 3 In some embodiments, this application provides an atomizing device, which includes an atomizing component, a first liquid guide 3, and a liquid storage chamber 4. The atomizing component includes an atomizing tube 1 and an atomizing core 2.

[0037] The atomizing tube 1 has at least one interconnected liquid guiding hole 10 and at least one capillary groove 11 on its tube wall. That is, the number of liquid guiding holes 10 can be one or more, and each liquid guiding hole 10 penetrates the tube wall of the atomizing tube 1 along its thickness direction. The number of capillary grooves 11 can also be one or more, and each capillary groove 11 is recessed inward from at least the outer circumferential surface of the atomizing tube 1; each capillary groove 11 may penetrate the tube wall of the atomizing tube 1 along its thickness direction; or, each capillary groove 11 may not penetrate the inner circumferential surface of the atomizing tube 1. Specifically, the capillary groove 11 has a smaller width than the liquid guiding hole 10, forming a narrow groove. The liquid in the capillary groove 11 flows to the liquid guiding hole 10 due to capillary action, thereby facilitating the flow of liquid from the outside of the atomizing tube 1 to the liquid guiding hole 10.

[0038] The atomizing core 2 is disposed inside the cavity of the atomizing tube 1, and the atomizing core 2 is at least partially facing the liquid guiding hole 10. That is, the atomizing core 2 may have part of its outer surface facing the liquid guiding hole 10, or its entire outer surface may be facing the liquid guiding hole 10.

[0039] The first guiding liquid 3 surrounds the atomizing tube 1 and covers the guiding orifice 10 and capillary groove 11. The storage chamber 4 stores the liquid atomizing matrix, and the storage chamber 4 and the first guiding liquid 3 are in fluid communication. The first guiding liquid 3 can be made of porous materials such as fiber materials. The first guiding liquid 3 absorbs the liquid atomizing matrix from the storage chamber 4 and conducts the atomizing matrix to the guiding orifice 10 and capillary groove 11. The atomizing matrix is ​​then transferred to the interior of the atomizing tube 1 through the guiding orifice 10, where it contacts the atomizing core 2 and is heated and atomized to generate an aerosol for the user to inhale. That is, the flow direction of the atomizing matrix is: storage chamber 4, first guiding liquid 3, capillary groove 11 and guiding orifice 10, atomizing core 2. In this process, since a capillary groove 11 is provided on the atomizing tube 1, the atomizing matrix stored in the second liquid guide 20 will be drawn into the capillary groove 11 with the help of capillary force, and then conducted to the liquid guide hole 10, and finally enter the atomizing core 2, which is conducive to the smooth liquid guide of the atomizing core 2.

[0040] like Figures 2 to 6 As shown, in some embodiments, the atomizing device further includes a sealing seat 5. The sealing seat 5 has a recessed mounting groove 50, the opening 60 of which faces the liquid storage chamber 4. The end of the atomizing tube 1 away from the liquid storage chamber 4 (i.e., the lower end of the atomizing tube 1) and the end of the first liquid guide 3 away from the liquid storage chamber 4 (i.e., the lower end of the first liquid guide 3) are both fixed within the mounting groove 50. Thus, the lower end of the first liquid guide 3 and the lower end of the atomizing tube 1 are fixed by the mounting groove 50.

[0041] like Figures 2 to 6As shown, in some embodiments, the atomizing device further includes a housing 6, a sealing seat 5, and a housing 6 in a sealing fit. The sealing seat 5, the atomizing tube 1, and the housing 6 together define a liquid storage chamber 4. The first liquid guide 3 is located within the liquid storage chamber 4. The end of the atomizing tube 1 facing away from the sealing seat 5 (i.e., the upper end of the atomizing tube 1) engages with the housing 6, defining an aerosol channel 8 for aerosol outflow. Thus, the upper end of the atomizing tube 1 is fixed by the housing 6. The aerosol generated at the atomizing core 2 inside the cavity of the atomizing tube 1 is delivered to the user's mouth via this aerosol channel 8.

[0042] Specifically, such as Figure 4 As shown, in some embodiments, one end of the housing 6 has an opening 60, and the sealing seat 5 at least partially extends into the opening 60 and seals with the housing 6. Figure 2 As shown, the upper end of the atomizing tube 1 is sealed to the housing 6, and the lower end of the atomizing tube 1 is sealed to the mounting groove 50, thus fixing both ends of the atomizing tube 1 and defining the sealed liquid storage chamber 4.

[0043] like Figure 2 , Figure 4 and Figure 6 As shown, in some embodiments, the housing 6 includes a housing body 61 and an air guide tube 62. The housing body 61 and the air guide tube 62 are bent together. The connection between the housing body 61 and the air guide tube 62 is smoothly transitioned with a rounded corner. The housing body 61 and the air guide tube 62 can be an integrally formed structure or a separately formed split structure. The sealing seat 5 is sealed to the housing body 61. Specifically, the end of the housing body 61 away from the air guide tube 62 has an opening 60, and the sealing seat 5 at least partially extends into the opening 60 and seals against the inner wall surface of the housing body 61. The sealing seat 5, the atomizing tube 1, the housing body 61, and the air guide tube 62 together define the liquid storage chamber 4. Specifically, the upper surface of the sealing seat 5, the outer peripheral surface of the atomizing tube 1, the inner wall surface of the housing body 61, and the outer peripheral surface of the air guide tube 62 together define the liquid storage chamber 4.

[0044] The end of the atomizing tube 1 facing away from the sealing seat 5 (i.e., the upper end of the atomizing tube 1) is connected to the air guide tube 62. The end of the atomizing tube 1 facing away from the sealing seat 5 (i.e., the upper end of the atomizing tube 1) extends into the cavity of the air guide tube 62 for fixation. The end of the air guide tube 62 near the sealing seat 5 (i.e., the lower end of the air guide tube 62) and the end of the first liquid guide 3 near the liquid storage cavity 4 (i.e., the upper end of the first liquid guide 3) are in contact. Specifically, in some embodiments, the lower end of the air guide tube 62 may abut against the upper end of the first liquid guide 3; or, in other embodiments, the air guide tube 62 and the first liquid guide 3 may be sleeved together, for example, the air guide tube 62 may wrap part or all of the outer peripheral surface of the first liquid guide 3.

[0045] like Figure 2As shown, the cavity of the atomizing tube 1 and the cavity of the air guide tube 62 together define the aerosol channel 88.

[0046] like Figure 3 As shown, in some embodiments, the end face of the first liquid guide 3 near the liquid storage cavity 4 includes a first region 31 and a second region 32 that are laterally adjacent. The first region 31 abuts against the housing 6. The second region 32 does not contact the housing 6, thus exposing it to the liquid storage cavity 4. Specifically, the first region 31 abuts against the lower end of the air guide tube 62. The second region 32 and the lower end of the air guide tube 62 are offset from each other and do not contact, thus exposing it to the liquid storage cavity 4. The first region 31, abutting against the housing 6, is used to fix the upper end of the first liquid guide 3. After the upper end of the first liquid guide 3 is fixed to the housing 6, the atomizing matrix in the liquid storage cavity 4 is forced to enter the liquid guide hole 10 only through the first liquid guide 3. The second region 32, avoiding the housing 6, directly faces the liquid storage cavity 4, serving as the liquid absorption surface of the first liquid guide 3 to maximize the liquid inlet surface area 23 of the first liquid guide 3, ensuring smooth liquid guidance of the atomizing core 2.

[0047] Furthermore, such as Figure 3 As shown, in some embodiments, at least a portion of the outer peripheral surface of the first liquid guide 3 is spaced 7 with the circumferential groove wall of the mounting groove 50, so that at least a portion of the outer peripheral surface of the first liquid guide 3 is exposed to the liquid storage cavity 4. That is, the outer peripheral surface of the first liquid guide 3 may have a portion of its area spaced 7 with the circumferential groove wall of the mounting groove 50; or, the entire outer peripheral surface of the first liquid guide 3 may have a portion spaced 7 with the circumferential groove wall of the mounting groove 50. Within this spaced 7, the area of ​​the outer peripheral surface of the first liquid guide 3 directly exposed to the liquid storage cavity 4 serves as the liquid absorption surface of the first liquid guide 3, so as to maximize the liquid inlet surface area 23 of the first liquid guide 3 and ensure smooth liquid guidance of the atomizing core 2.

[0048] like Figures 2 to 6As shown, in some embodiments, the housing 6 is transparent at least in the area corresponding to the liquid storage cavity 4. That is, the housing 6 may only use transparent material in the area corresponding to the liquid storage cavity 4 to form a transparent part, and the housing 6 may have a partially transparent and partially opaque appearance; or the housing 6 may be entirely made of transparent material, so that the overall appearance is completely transparent. Thus, the user can directly observe the remaining amount of atomized matrix in the liquid storage cavity 4 from the outside of the housing 6. The end of the first liquid guide 3 away from the sealing seat 5 (that is, the upper end of the first liquid guide 3) does not exceed the top surface 53 (that is, the upper surface of the sealing seat 5) on the side of the sealing seat 5 facing the liquid storage cavity 4. That is, with the lower end of the first liquid guide 3 abutting the bottom surface of the mounting groove 50, the height of the first liquid guide 3 in the vertical direction is less than the depth of the mounting groove 50 in the vertical direction, so that the top of the first liquid guide 3 is not higher than the upper surface of the sealing seat 5. Thus, when the liquid storage chamber 4 is observed from the outside of the at least partially transparent shell 6, the first liquid guide 3 is hidden inside the mounting groove 50 and will not be exposed, which is beneficial to the overall appearance of the atomizing device.

[0049] like Figure 5 As shown, in some embodiments, the mounting groove 50 includes a first groove 51 and a second groove 52. The first groove 51 is located on the side of the second groove 52 away from the liquid storage cavity 4. That is, the second groove 52 is closer to the liquid storage cavity 4 than the first groove 51. The lateral dimension W1 of the first groove 51 is smaller than the lateral dimension W2 of the second groove 52. Figure 3 As shown, the end of the atomizing tube 1 furthest from the liquid storage chamber 4 (i.e., the lower end of the atomizing tube 1) is embedded in the first groove 51 and fixedly engaged with the side wall of the first groove 51. The end of the first liquid guide 3 furthest from the liquid storage chamber 4 (i.e., the lower end of the first liquid guide 3) is embedded in the second groove 52 and fixedly engaged with the side wall of the second groove 52. Specifically, after the atomizing tube 1 is embedded in the first groove 51, a space 7 is formed between the outer peripheral surface of the atomizing tube 1 and the inner peripheral wall of the second groove 52. The first liquid guide 3 is embedded and fixed in this space 7, with the inner peripheral surface of the first liquid guide 3 in contact with the outer peripheral surface of the atomizing tube 1, and the outer peripheral surface of the first liquid guide 3 in contact with the inner peripheral wall of the second groove 52.

[0050] like Figure 7 and Figure 8 As shown, in some embodiments, at least one capillary groove 11 is located below the liquid guiding hole 10. That is, at least one capillary groove 11 is closer to the lower end of the atomizing tube 1 than the liquid guiding hole 10. Thus, when the liquid level in the storage chamber 4 is low, the liquid stored in the first liquid guiding hole 3 accumulates at the bottom due to gravity. The capillary groove 11 located below the liquid guiding hole 10 can draw in as much liquid as possible from the bottom and transfer it to the atomizing core 2 through the liquid guiding hole 10. This allows for full utilization of the remaining atomizing matrix at the bottom when the liquid level in the storage chamber 4 is low, thereby improving the utilization rate of the atomizing matrix.

[0051] like Figure 3 and Figure 8 As shown, in some embodiments, the atomizing core 2 includes a second liquid guide 20 and a heating element 21. The material used for the second liquid guide 20 can be the same as that used for the first liquid guide 3, for example, it can be a fiber material. The second liquid guide 20 is disposed inside the cavity of the atomizing tube 1 and is at least partially opposite to the liquid guide hole 10. The second liquid guide 20 is in contact with the wall of the atomizing tube 1, and the heating element 21 is in contact with the second liquid guide 20. Specifically, the heating element 21 is attached to the surface of the second liquid guide 20 and can be partially embedded in the second liquid guide 20. The second liquid guide 20 includes a relatively parallel liquid inlet surface 23 and an atomizing surface 24. The liquid inlet surface 23 faces the inner wall surface of the atomizing tube 1 and is in close contact with the inner wall surface of the atomizing tube 1 to achieve limiting and fixing. The liquid inlet surface 23 is opposite to the liquid guide hole 10. The heating element 21 is disposed on the atomizing surface 24. The atomizing matrix, which enters the cavity of the atomizing tube 1 through the liquid guide hole 10, gradually permeates to the atomizing surface 24 via the liquid inlet surface 23. The atomizing matrix is ​​then heated and atomized by the heating element 21 on the atomizing surface 24 to generate an aerosol. That is, the flow direction of the atomizing matrix is: liquid storage chamber 4, first liquid guide 3, capillary groove 11 and liquid guide hole 10, liquid inlet surface 23, atomizing surface 24, heating element 21.

[0052] In some embodiments, the atomizing device further includes a power supply unit, which is connected to the heating element 21 of the atomizing core 2 and is used to provide heating power to the heating element 21.

[0053] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. An atomizing device, characterized in that, include: An atomizing tube, wherein the tube wall is provided with at least one liquid guiding hole and at least one capillary groove that are connected to each other; An atomizing core is disposed inside the cavity of the atomizing tube, and the atomizing core is at least partially opposite the liquid guiding hole; The first liquid guide wraps around the periphery of the atomizing tube and covers the liquid guide hole and capillary groove; The liquid storage chamber is in fluid communication with the first liquid guide.

2. The atomizing device according to claim 1, characterized in that, The atomizing core includes a second liquid guide and a heating element. The second liquid guide is disposed inside the cavity of the atomizing tube and is at least partially opposite the liquid guide hole. The second liquid guide is in contact with the tube wall of the atomizing tube, and the heating element is in contact with the second liquid guide.

3. The atomizing device according to claim 1, characterized in that, At least one of the capillary grooves is located below the liquid guide hole.

4. The atomizing device according to any one of claims 1-3, characterized in that, The atomizing device further includes a sealing seat, which has a recessed mounting groove. The opening of the mounting groove faces the liquid storage chamber. The end of the atomizing tube away from the liquid storage chamber and the end of the first liquid guide away from the liquid storage chamber are both fixed in the mounting groove.

5. The atomizing device according to claim 4, characterized in that, The atomizing device further includes a housing, and the sealing seat and the housing are sealed together. The sealing seat, the atomizing tube and the housing together define the liquid storage chamber, and the first liquid guide is located in the liquid storage chamber. The end of the atomizing tube facing away from the sealing seat is fitted with the housing to define an aerosol channel for aerosol to flow out.

6. The atomizing device according to claim 5, characterized in that, The housing includes a housing body and an air guide tube; the sealing seat and the housing body are sealed together, and the end of the atomizing tube facing away from the sealing seat is connected to the air guide tube. The sealing seat, the atomizing tube, the housing body and the air guide tube together define the liquid storage chamber. The end of the atomizing tube facing away from the sealing seat extends into the cavity of the air guide tube and is fixed therein. The end of the air guide tube near the sealing seat is in contact with the end of the first liquid guide tube near the liquid storage cavity.

7. The atomizing device according to claim 5, characterized in that, The end face of the first liquid guide near the liquid storage cavity includes a first region and a second region. The first region abuts against and fits against the housing, while the second region does not contact the housing and is exposed to the liquid storage cavity.

8. The atomizing device according to claim 4, characterized in that, The outer peripheral surface of the first liquid guide is at least partially spaced from the circumferential groove wall of the mounting groove, so that the outer peripheral surface of the first liquid guide is at least partially exposed to the liquid storage cavity.

9. The atomizing device according to claim 4, characterized in that, The atomizing device further includes a housing, and the sealing seat and the housing are sealed together. The sealing seat, the atomizing tube and the housing together define the liquid storage chamber, and the first liquid guide is located in the liquid storage chamber. The housing is transparent at least in the area corresponding to the liquid storage chamber, and the end of the first liquid guide away from the sealing seat does not extend beyond the top surface of the sealing seat facing the liquid storage chamber.

10. The atomizing device according to claim 4, characterized in that, The mounting groove includes a first groove and a second groove. The first groove is located on the side of the second groove away from the liquid storage cavity. The lateral dimension of the first groove is smaller than the lateral dimension of the second groove. The end of the atomizing tube away from the liquid storage cavity is fixedly engaged with the side wall of the first groove, and the end of the first liquid guide away from the liquid storage cavity is fixedly engaged with the side wall of the second groove.

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