Atomizer and atomizing device

Abstract

The utility model relates to the technical field of electronic atomization devices, in particular to an atomizer and an atomization device. The atomizer comprises an atomizer body, the atomizer body is provided with an atomizing air channel and a liquid storage cavity, the atomizing air channel is provided with an air inlet section, an atomizing section and an air outlet section which are sequentially communicated, and the liquid storage cavity is in fluid communication with the atomizing section; at least part of the first blocking piece is detachably arranged in the air outlet section so as to block the air outlet section, and the first blocking piece can be pulled out from the air outlet section in the air outlet direction of the air outlet section; and at least part of the second blocking piece is detachably arranged in the air inlet section so as to block the air inlet section. The first blocking piece and the second blocking piece are matched to seal the atomization section, so that the liquid atomization matrix entering the atomization section from the liquid storage cavity is sealed between the first blocking piece and the second blocking piece, and the liquid atomization matrix can be prevented from leaking in the atomizer in the transportation process or the shelf life and polluting other parts.

Description

Technical Field

[0001] This application relates to the field of electronic atomization device technology, specifically to an atomizer and an atomization device. Background Technology

[0002] Some atomizers are pre-filled with liquid atomizing matrix in their internal reservoir before leaving the factory. However, from the time atomizer leaves the factory until it is used by the customer, it typically undergoes several months or even a year of storage, transportation, and shelf life. During this process, the atomizer is not only affected by transportation conditions but also by changes in external environmental factors such as temperature, humidity, and air pressure. The liquid atomizing matrix in the atomizer is prone to leakage, contaminating other components. Although some solutions have been proposed to address this problem, these solutions generally have some shortcomings and still need improvement. Utility Model Content

[0003] This application aims to improve the problem of leakage of liquid atomizing matrix inside the atomizer during storage and transportation, and provides a new atomizer and atomizing device.

[0004] According to a first aspect, one embodiment provides an atomizer, comprising:

[0005] The atomizer body has an atomizing air passage and a liquid storage chamber. The atomizing air passage has an air inlet section, an atomizing section and an air outlet section connected in sequence. The liquid storage chamber is in fluid communication with the atomizing section.

[0006] A first plug, at least a portion of which is detachably disposed in the air outlet section to block the air outlet section and is capable of being pulled out of the air outlet section along the air outlet direction;

[0007] And a second plug, at least a portion of which is detachably disposed in the air intake section to block the air intake section.

[0008] In one embodiment, the portion of the first plug inserted into the air outlet section is provided with a first protruding ring, and the first protruding ring is interference-fitted with the air passage wall of the air outlet section.

[0009] And / or, the portion of the second plug inserted in the air intake section is provided with a second protruding ring, the second protruding ring being interference-fitted with the air passage wall of the air intake section.

[0010] In one embodiment, at least two first convex rings are spaced apart along the length of the first plug, and the outer diameter of the first convex ring closer to the atomizing section is not less than the outer diameter of the first convex ring farther from the atomizing section.

[0011] In one embodiment, the first plug has a first portion on the side near the atomizing section, the outer diameter of the first portion being adapted to the inner diameter of the air outlet section, so that when the first plug blocks the air outlet section, a capillary gap is formed between the first portion and the air outlet section, the capillary gap being used to restrict the seepage of liquid atomizing matrix.

[0012] In one embodiment, the first plug has a second portion connected to the side of the first portion away from the atomizing section, and the outer diameter of the second portion is smaller than the outer diameter of the first portion.

[0013] In one embodiment, the first plug has an operating section located on the side of the first plug away from the atomizing section. When the first plug blocks the air outlet section, the end of the operating section away from the atomizing section is exposed outside the atomizer body.

[0014] In one embodiment, a positioning mark is provided on the operating section. The positioning mark is used for the first plug to be inserted and positioned. When the first plug blocks the air outlet section, the positioning mark is located at a position corresponding to the end of the air outlet section.

[0015] In one embodiment, the positioning mark is a positioning groove disposed on the peripheral wall of the operating segment.

[0016] In one embodiment, the atomizer body includes an atomizing core disposed in the atomizing section. When the first plug blocks the air outlet section and the second plug blocks the air inlet section, the first plug and the second plug are both spaced apart from the atomizing core along the axial direction of the atomizing air passage.

[0017] In one embodiment, the atomizer body includes:

[0018] The outer shell includes a housing and a hollow tube. The housing has an inner cavity with an opening on one side. The hollow tube is disposed in the inner cavity to allow communication between the inner cavity and the outside of the housing.

[0019] The housing assembly is fitted to one side of the opening of the housing to close the opening and forms the liquid storage cavity by surrounding the cavity wall of the inner cavity and the outer peripheral wall of the hollow tube; the housing assembly is provided with an air guide channel, which is connected to the cavity of the hollow tube to form the atomizing air channel;

[0020] The cavity of the hollow tube is enlarged at one end near the seat assembly to allow the first plug to be inserted.

[0021] According to a second aspect, one embodiment provides an atomizing device, including a power supply component and an atomizer as described in any of the above embodiments, the atomizer being mounted on the power supply component.

[0022] According to the atomizer of the above embodiment, the outlet section of the atomizing air passage is sealed by a first plug and the inlet section of the atomizing air passage is sealed by a second plug. The first and second plugs cooperate to seal the atomizing section, so that the liquid atomizing matrix entering the atomizing section from the liquid storage chamber is sealed between the first and second plugs. This helps to prevent the liquid atomizing matrix from leaking inside the atomizer during transportation or shelf life and contaminating other components.

[0023] Furthermore, since the liquid atomizing matrix is ​​sealed in the atomizing section, users can directly assemble and use the device simply by pulling out the first and second plugs, without waiting. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an atomizer according to one embodiment;

[0025] Figure 2 This is a schematic cross-sectional view of an atomizer according to one embodiment;

[0026] Figure 3 This is a schematic diagram of the exploded structure of an atomizer according to one embodiment;

[0027] Figure 4 A schematic diagram of the structure of the first plug of an atomizer according to one embodiment;

[0028] Figure 5 This is a schematic diagram of the structure of the second plug of an atomizer according to one embodiment.

[0029] In the diagram, 100 is the atomizer body; 110 is the liquid storage chamber; 120 is the atomizing airway; 121 is the air inlet section; 122 is the atomizing section; 123 is the air outlet section; 130 is the outer shell; 131 is the housing; 132 is the hollow tube; 133 is the enlarged section; 140 is the base assembly; 141 is the base; 142 is the mounting bracket; 1421 is the mounting groove; 1422 is the liquid guiding channel; 150 is the air guiding channel; 151 is the first airway hole; 152 is the second airway hole; 160 is the atomizing core; 161 is the heating element; 162 is the liquid guiding element; 163 is the atomizing tube; and 1631 is the liquid inlet.

[0030] 200, First plug; 210, Operating section; 211, Positioning mark; 220, First convex ring; 230, First part; 240, Second part;

[0031] 300, Second plug; 310, Second convex ring. Detailed Implementation

[0032] The present application 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] For some atomizers that are pre-filled with liquid atomizing matrix in the storage chamber 110 at the time of manufacture, after several months or even a year of storage, transportation and shelf life, the liquid atomizing matrix in the atomizer is prone to leakage inside the atomizer, contaminating other components.

[0036] To address this issue, some related technologies incorporate a liquid storage device, such as a liquid storage cotton, within the liquid storage chamber 110. This device utilizes its liquid absorption and retention capabilities to absorb and store the liquid atomizing matrix. While this method helps prevent leakage of the liquid atomizing matrix, the stored liquid atomizing matrix is ​​difficult to deplete, and it also affects the suction experience.

[0037] In other related technologies, the atomizer is designed with a separate coil and atomizer core structure. At the factory, the atomizer core 160 is isolated from the liquid reservoir 110. Users need to adjust the position of the atomizer core 160 before use to connect it to the liquid reservoir 110 and supply liquid to the core 160. This method has the following problems: First, when users adjust the position of the core 160 to activate the atomizer, the position may not be properly adjusted. Second, after activation, the liquid atomizing matrix cannot quickly penetrate the core 160, requiring a waiting period before use. Third, even if the atomizer is activated in advance, allowing the liquid atomizing matrix to soak the core 160, the flavor may still be weak when starting to vape.

[0038] In this embodiment, by providing a first plug 200 to detachably block the air outlet section 123 of the atomizing airway 120, and a second plug 300 to detachably block the air inlet section 121 of the atomizing airway 120, the liquid atomizing matrix entering the atomizing section 122 of the atomizing airway 120 from the liquid storage chamber 110 is sealed between the first plug 200 and the second plug 300. This helps to prevent leakage of the liquid atomizing matrix inside the atomizer during transportation or shelf life. Furthermore, since the liquid atomizing matrix is ​​sealed in the atomizing section 122, the user can directly assemble and use the device by simply removing the first plug 200 and the second plug 300, without waiting, which helps to maintain a stable vaping experience.

[0039] An embodiment of the atomizer in this application:

[0040] In one embodiment, please refer to Figures 1-5 The atomizer includes an atomizer body 100, a first plug 200, and a second plug 300.

[0041] The atomizer body 100 can be understood as a collection of related components used to achieve the atomization function. The atomizer body 100 has a liquid storage chamber 110 and an atomizing air channel 120. The liquid storage chamber 110 is used to store liquid atomizing matrix and is arranged around the atomizing air channel 120. The atomizing air channel 120 has an air inlet section 121, an atomizing section 122 and an air outlet section 123 connected in sequence. The liquid storage chamber 110 and the atomizing section 122 are in fluid communication. The liquid atomizing matrix in the liquid storage chamber 110 can enter the atomizing section 122 and be atomized in the atomizing section 122 to form an aerosol.

[0042] In one embodiment, please refer to Figure 2The atomizer body 100 includes a shell 130 and a base assembly 140. The shell 130 may include a housing 131 and a hollow tube 132. The housing 131 has an inner cavity with an opening on one side. The hollow tube 132 is disposed within the inner cavity, allowing communication between the inner cavity and the outside of the housing 131. Those skilled in the art will understand that the hollow tube 132 and the housing 131 can be integrally formed or separately.

[0043] The seat assembly 140 is assembled on one side of the opening of the housing 131 to close the opening, and together with the cavity wall of the inner cavity and the outer peripheral wall of the hollow tube 132, it forms a liquid storage cavity 110; the seat assembly 140 is provided with an air guide channel 150, which is connected to the cavity of the hollow tube 132 to form an atomizing air channel 120.

[0044] In one embodiment, please refer to Figure 2 The atomizer body 100 includes an atomizing core 160, which is disposed in an atomizing airway 120. The section of the atomizing airway 120 in which the atomizing core 160 is disposed is the atomizing section 122. The parts of the atomizing airway 120 on both sides of the atomizing section 122 are the air inlet section 121 and the air outlet section 123, respectively.

[0045] For example, please refer to Figure 2 The seat assembly 140 may include a base 141 and a mounting bracket 142. The mounting bracket 142 is disposed in the inner cavity, forming a liquid storage cavity 110 with the cavity wall and the outer peripheral wall of the hollow tube 132. During assembly, the mounting bracket 142 can be inserted into the inner cavity through the opening. The base 141 is disposed at the opening of the inner cavity and abuts against the mounting bracket 142 to fix the position of the mounting bracket 142. The base 141 is provided with a first air passage hole 151 along the axial direction of the hollow tube 132, and the mounting bracket 142 is provided with a second air passage hole 152 along the axial direction of the hollow tube 132. The first air passage hole 151 and the second air passage hole 152 communicate to form an air guiding channel 150. Those skilled in the art will understand that the seat and the mounting bracket 142 can be assembled to form the seat assembly 140, or they can be integrally disposed to form the seat assembly 140, as long as the design and usage requirements are met.

[0046] The mounting bracket 142 has a mounting groove 1421 and a liquid guiding channel 1422 on the side near the hollow tube 132. The mounting groove 1421 is connected to the first air passage hole 151. One side of the atomizing core 160 is fixed in the mounting groove 1421, and the other side is inserted into the cavity of the hollow tube 132, so that the first air passage hole 151 and the cavity of the hollow tube 132 are connected through the atomizing core 160. The part where the atomizing core 160 is located is the atomizing section 122 of the atomizing air passage 120. A portion of the air guiding channel 150 on one side of the atomizing core 160 is the air inlet section 121 of the atomizing air passage 120, and a portion of the cavity of the hollow tube 132 on the other side of the atomizing core 160 is the air outlet section 123 of the atomizing air passage 120. The liquid channel 1422 connects the liquid storage chamber 110 and the mounting groove 1421 to deliver the liquid atomizing matrix stored in the liquid storage chamber 110 to the atomizing core 160.

[0047] In one embodiment, please refer to Figure 3 The atomizing core 160 may include a heating element 161, a liquid guiding element 162, and an atomizing tube 163. The heating element 161 may be a tubular heating body formed by heating wires. The liquid guiding element 162 may be a liquid guiding cotton sleeved outside the heating element 161. The atomizing tube 163 is sleeved outside the liquid guiding element 162. The atomizing tube 163 is provided with a liquid inlet hole 1631 that communicates with the liquid guiding channel 1422 so that the liquid guiding cotton can absorb the liquid atomizing matrix.

[0048] To prevent leakage of the liquid atomizing matrix in the atomizing core 160 through the air inlet section 121 and the air outlet section 123 during transportation and storage, in one embodiment, please refer to... Figure 2 and Figure 4 The first plug 200 and the second plug 300 are arranged facing each other. At least a portion of the first plug 200 is detachably disposed in the air outlet section 123 to block the air outlet section 123, and can be pulled out from the air outlet section 123 in the air outlet direction to allow the air outlet section 123 to be open. At least a portion of the second plug 300 is detachably inserted into the air inlet section 121 to block the air inlet section 121, and can be pulled out from the air inlet section 121 in the opposite direction to the air inlet direction to allow the air inlet section 121 to be open. Those skilled in the art will understand that the air outlet direction of the air outlet section 123 and the air inlet direction of the air inlet section 121 are the same as the air guiding direction of the atomizing air passage 120, and the first plug 200 and the second plug 300 can be pulled out in opposite directions to allow the atomizing air passage 120 to be fully open.

[0049] The liquid atomizing matrix entering the atomizing section 122 from the liquid storage chamber 110 is sealed between the first plug 200 and the second plug 300, reducing the risk of leakage. After the first plug 200 and the second plug 300 are pulled out, the atomizing air passage 120 can be fully opened, making it easy to use directly.

[0050] Those skilled in the art should know that, in order to ensure the sealing effect of the first plug 200 and the second plug 300 on the air intake section 121 and the air outlet section 123, the materials of the first plug 200 and the second plug 300 can be elastic materials such as silicone or rubber.

[0051] Since prolonged contact between the elastic first plug 200 and the second plug 300 and the liquid atomizing matrix may cause the liquid atomizing matrix to deteriorate and affect the inhalation experience, in one embodiment, when the first plug 200 blocks the air outlet section 123 and the second plug 300 blocks the air inlet section 121, the first plug 200 and the second plug 300 are both spaced apart from the atomizing core 160 along the axial direction of the atomizing air passage 120 to avoid prolonged contact between the first plug 200 and the second plug 300 and the atomizing core 160, thereby reducing the risk of prolonged contact between the first plug 200 and the second plug 300 and the liquid atomizing matrix and helping to ensure the inhalation experience.

[0052] In one embodiment, please refer to Figure 2 and Figure 4 The first plug 200 has an operating section 210, which is located on the side of the first plug 200 away from the atomizing section 122. When the first plug 200 blocks the air outlet section 123, the end of the operating section 210 away from the atomizing section 122 is exposed outside the atomizer body 100, so that the user can pull out the first plug 200 by pulling the operating section 210.

[0053] To facilitate determining whether the first plug 200 is properly installed during assembly, in one embodiment, please refer to... Figure 2 and Figure 4 A positioning mark 211 can be set on the operation section 210. The positioning mark 211 is used for the first plug 200 to be inserted and positioned. When the first plug 200 blocks the air outlet section 123, the positioning mark 211 is located at the position corresponding to the air outlet end of the air outlet section 123.

[0054] In some embodiments, please refer to Figure 2 and Figure 4 The positioning mark 211 can be a positioning groove provided on the peripheral wall of the operating section 210. The positioning groove not only facilitates the positioning of the first plug 200, but also serves as an operating position for the user to pull out the first plug 200, especially when the operating section 210 is shorter or cut due to packaging or other needs, allowing the user to pull it out. In other embodiments, the positioning mark 211 can also be a label, scale, or other form of setting that can be identified by the user.

[0055] In one embodiment, please refer to Figure 2 and Figure 4The portion of the first plug 200 inserted into the air outlet section 123 is provided with a first protruding ring 220. The first protruding ring 220 is interference-fitted with the air passage wall of the air outlet section 123, which helps to ensure the sealing effect of the first plug 200 on the air outlet section 123.

[0056] Those skilled in the art will understand; please refer to Figure 2 and Figure 4 The first protruding ring 220 can be set at the end of the first plug 200. During installation, the end with the first protruding ring 220 is installed close to the atomizing section 122, which can reduce the storage space after the liquid atomizing matrix leaks, and help limit the leakage of the liquid atomizing matrix to a small range, thereby reducing leakage loss.

[0057] Since the inclusion of the first convex ring 220 increases the assembly difficulty of the first plug 200, in one embodiment, please refer to... Figure 2 The cavity of the hollow tube 132 is enlarged at one end near the base assembly 140 to allow the first plug 200 to be inserted. This allows the first plug 200 to be inserted into the cavity of the hollow tube 132 from the open side of the inner cavity before the base 141 assembly is assembled, which helps to reduce the installation difficulty of the first plug 200.

[0058] In a further embodiment, please refer to Figure 2 The cavity of the hollow tube 132 is enlarged at one end near the seat assembly 140 to form an enlarged portion 133. The inner diameter of the enlarged portion 133 can be set to be no less than the outer diameter of the first protruding ring 220 so that the portion of the first plug 200 with the first protruding ring 220 can enter. The inner wall of the cavity of the enlarged portion 133 and the inner wall of the adjacent portion of the cavity can smoothly transition, so that the first protruding ring 220 can be engaged at the transition point for sealing.

[0059] To improve the sealing effect of the first plug 200 on the air outlet section 123 and further reduce the risk of leakage of the liquid atomizing matrix, in some embodiments, please refer to... Figure 2 and Figure 4 At least two first convex rings 220 are spaced apart along the length of the first plug 200, and the outer diameter of the first convex ring 220 closer to the atomizing section 122 is not less than the outer diameter of the first convex ring 220 further away from the atomizing section 122, so that the first convex rings 220 with different outer diameters can form a multi-blocking structure and block in stages.

[0060] For example, please refer to Figure 2 and Figure 4Four first convex rings 220 are spaced apart along the length of the first plug 200. The outer diameters of the two first convex rings 220 closest to the atomizing section 122 are larger than the outer diameters of the two first convex rings 220 furthest from the atomizing section 122, facilitating assembly from the end closest to the atomizing section 122 into the air outlet section 123. Furthermore, the interference fit can be increased by pulling the operating section 210 to ensure the sealing effect. Those skilled in the art will understand that the number of first convex rings 220 is not limited, as long as it meets design and usage requirements.

[0061] In one embodiment, please refer to Figure 2 and Figure 4 The first plug 200 has a first portion 230 on the side near the atomizing section 122. The outer diameter of the first portion 230 is adapted to the inner diameter of the air outlet section 123, so that when the first plug 200 seals the air outlet section 123, a capillary gap is formed between the first portion 230 and the air outlet section 123. The capillary gap is used to limit the leakage of liquid atomized matrix. For example, a first convex ring 220 is disposed on the side of the first portion 230 near the atomizing section 122, so that the first convex ring 220 acts as a primary seal and the first portion 230 acts as a secondary seal. Even if the liquid atomized matrix can leak through the first convex ring 220, the capillary gap can limit the outflow of a small amount of liquid atomized matrix based on capillary action and the surface tension of the liquid atomized matrix.

[0062] In one embodiment, please refer to Figure 2 and Figure 4 The first plug 200 also has a second part 240 connected to the side of the first part 230 away from the atomizing section 122. The outer diameter of the second part 240 is smaller than the outer diameter of the first part 230 so that the first plug 200 can be assembled.

[0063] In one embodiment, please refer to Figure 2 and Figure 5 The portion of the second plug 300 inserted into the intake section 121 is provided with a second protruding ring 310. The second protruding ring 310 is interference-fitted with the air passage wall of the intake section 121, which helps to ensure the sealing effect of the second plug 300 on the intake section 121.

[0064] For example, please refer to Figure 2 and Figure 5 The second plug 300 has a first end and a second end. Two second protruding rings 310 are spaced apart along the axial direction of the second plug 300. The second end is inserted into the second air passage hole 152. The second protruding rings 310 are press-fitted with the wall of the second air passage hole 152 to seal the second air passage hole 152, thereby closing the air guide channel 150 and helping to prevent leakage of the liquid atomizing matrix through the air guide channel 150. The first end is exposed outside the atomizer body 100 so that the user can pull out the second plug 300 through the first end.

[0065] Those skilled in the art should know that the second plug 300 can be configured with reference to the configuration of the first plug 200 in the above embodiments. For example, the second plug 300 may also have a portion that can form a capillary gap with the second air passage 152. Such configurations will not be described in detail here.

[0066] Examples of the atomizing device in this application:

[0067] In one embodiment, the atomizing device includes a power supply component and an atomizer as described in any of the above embodiments, the atomizer being mounted on the power supply component.

[0068] In one embodiment, the power supply component may include a housing and a power supply. The power supply is disposed in the housing, and the atomizer may be installed on one side of the housing and electrically connected to the power supply. The power supply can be understood as a collection of circuit boards, battery cells, and other related components, mainly used to support the realization of all or part of the functions of the atomizing device, such as controlling the atomizer to start and stop heating the liquid atomizing matrix stored inside, adjusting the heating power of the atomizer, and displaying the status information of the atomizing device.

[0069] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. Nebulizer, characterized in that The nebulizer comprises: a nebulizer body having an atomization air channel and a liquid storage cavity surrounding the atomization air channel, the atomization air channel having an air inlet section, an atomization section and an air outlet section in sequence, the liquid storage cavity being in fluid communication with the atomization section; a first plug, at least a portion of the first plug being detachably arranged in the air outlet section to block the air outlet section and being capable of being pulled out of the air outlet section along the air outlet direction of the air outlet section; and a second plug, at least a portion of the second plug being detachably arranged in the air inlet section to block the air inlet section.

2. The atomizer of claim 1, wherein, The portion of the first plug arranged in the air outlet section is provided with a first protruding ring, the first protruding ring being in interference fit with the air channel wall of the air outlet section. And / or, the portion of the second plug arranged in the air inlet section is provided with a second protruding ring, the second protruding ring being in interference fit with the air channel wall of the air inlet section.

3. The atomizer of claim 2, wherein, The first protruding ring is arranged in at least two along the length direction of the first plug, the outer diameter of the first protruding ring close to the atomization section is not less than the outer diameter of the first protruding ring away from the atomization section.

4. The atomizer of any one of claims 1 to 3, wherein, The first plug has a first portion on the side close to the atomization section, the outer diameter of the first portion is adapted to the inner diameter of the air outlet section, so that when the first plug blocks the air outlet section, a capillary gap is formed between the first portion and the air outlet section, the capillary gap is used to limit the leakage of liquid atomization base.

5. The atomizer of claim 4, wherein, The first plug has a second portion, the second portion is connected to the side of the first portion away from the atomization section, the outer diameter of the second portion is smaller than the outer diameter of the first portion.

6. The atomizer of any of claims 1 to 3, wherein, The first plug has an operation section, the operation section is located on the side of the first plug away from the atomization section, when the first plug blocks the air outlet section, the end of the operation section away from the atomization section is exposed outside the nebulizer body.

7. The atomizer of claim 6, wherein, The operation section is provided with a positioning mark, the positioning mark is used for positioning the first plug, when the first plug blocks the air outlet section, the positioning mark is located at a position corresponding to the end of the air outlet section.

8. The atomizer of claim 7, wherein, The positioning mark is a positioning groove provided on the peripheral wall of the operation section.

9. The atomizer of any of claims 1 to 3, wherein, The nebulizer body comprises: an outer shell comprising a shell and a hollow tube, the shell is provided with an inner cavity, the inner cavity is provided with an opening on one side, the hollow tube is arranged in the inner cavity to communicate the inner cavity with the outside of the shell; and a seat assembly assembled on the side of the shell opening to close the opening and surrounded by the cavity wall of the inner cavity and the peripheral wall of the hollow tube to form the liquid storage cavity; the seat assembly is provided with a gas guide channel, the gas guide channel is in butt joint communication with the lumen of the hollow tube to form the atomization air channel; The lumen of the hollow tube is provided with an enlarged diameter at the end close to the seat assembly for inserting the first plug.

10. Nebulizer, characterized in that The power supply assembly and the nebulizer of any one of claims 1 to 9 are included, and the nebulizer is mounted on the power supply assembly.

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