Suction nozzle structure, atomizer and atomizing equipment

Abstract

The utility model provides a suction nozzle structure, an atomizer and atomization equipment, and relates to the technical field of electronic atomization. The suction nozzle structure comprises a suction nozzle piece, an air outlet and an air passing channel are defined in the suction nozzle piece, one end of the air passing channel is communicated with the air outlet, and the other end of the air passing channel is communicated with the atomization channel. The inner diameter of the air passing channel is gradually reduced or increased in the airflow direction of the aerosol, and the minimum inner diameter of the air passing channel is larger than or equal to the inner diameter of the atomization channel; according to the suction nozzle structure, the minimum inner diameter of the air passing channel is limited to be larger than or equal to the inner diameter of the atomization channel, so that obstruction of the inner wall of the air passing channel to aerosol passing can be effectively reduced, normal passing of the aerosol is ensured, and the use effect of a user is ensured; and by limiting the change of the inner diameter of the gas passing channel, when condensate is generated through the aerosol in the gas passing channel and is hung on the wall, the influence of the condensate attached to the inner wall of the gas passing channel on the flowing aerosol is reduced, and therefore the use taste of the aerosol is ensured.

Description

Technical Field

[0001] The present application relates to the field of electronic atomization technology, and in particular to a nozzle structure, an atomizer and an atomization device. Background Art

[0002] When users use the atomizer devices that are widely circulated on the market, the inner wall of the air passage of the mouthpiece often causes water vapor in the air to condense into tiny condensation droplets due to the temperature difference between the inhaled airflow and the surrounding environment. These droplets gradually accumulate on the inner wall, which will hinder the passage of aerosol in the gas circulation pipeline. How to reduce the obstruction of aerosol passage caused by condensation in the channel of the mouthpiece has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a nozzle structure, an atomizer and an atomization device, aiming to solve the technical problems existing in the related art.

[0004] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0005] An embodiment of the present application provides a nozzle structure for use with an atomizer core assembly. The atomizer core assembly has an atomization channel for forming an aerosol. The nozzle structure includes a nozzle piece.

[0006] The mouthpiece is defined by an air outlet and an air passage, one end of the air passage is connected to the air outlet, and the other end of the air passage is connected to the atomization passage; the inner diameter of at least part of the air passage gradually decreases or increases along the airflow direction of the aerosol, and the minimum inner diameter of the air passage is greater than or equal to the inner diameter of the atomization passage.

[0007] In one embodiment, the air passage includes a first air passage segment and a second air passage segment connected thereto; the first air passage segment is located on a side close to the atomization channel, and the inner diameter of the first air passage segment gradually decreases along the aerosol flow direction; the second air passage segment is located on a side close to the air outlet, and the inner diameter of the second air passage segment gradually increases along the aerosol flow direction; the connection between the first air passage segment and the second air passage segment is the minimum inner diameter of the air passage.

[0008] In one embodiment, the mouthpiece is provided with an air passage connected to the air outlet, and the end of the air passage away from the air outlet is sealed with the atomizer core assembly; the inner wall of the air passage is provided with multiple steps along its axial direction to form an air passage.

[0009] When the inner diameter of the air passage gradually decreases along the air flow direction of the aerosol, the inner diameters of the step portions at each level decrease in sequence along the aerosol flow direction; when the inner diameter of the air passage gradually increases along the air flow direction of the aerosol, the inner diameters of the step portions at each level increase in sequence along the aerosol flow direction.

[0010] In one embodiment, the nozzle structure further includes a sealing tube and a sealing member. The sealing tube is arranged on the nozzle member and sleeved on the outside of the air pipe. The sealing member is sealingly connected between the atomizer core assembly, the air pipe and the sealing tube. The sealing member defines an air flow channel with openings at both ends. The openings at both ends of the air flow channel are respectively sealed and connected to the air passage and the atomization passage.

[0011] In one embodiment, the sealing member includes a connecting groove and a sealing ring. The connecting groove is provided on a side of the sealing member facing the atomizer core assembly, and the sealing ring is provided on an outer peripheral side of the sealing member. The atomizer core assembly includes an atomizer tube, which is inserted into the connecting groove. The end of the air passage tube, which is remote from the air outlet, abuts against a side of the sealing member facing away from the atomizer tube, and the sealing ring abuts against the inner wall of the sealing tube.

[0012] In one embodiment, the inner wall of the multi-step portion and the surface of the seal form a liquid-blocking cavity for collecting condensate; the inner diameter of the airflow channel is greater than or equal to the inner diameter of the atomization channel, and the inner diameter of the guide portion gradually increases along the airflow direction.

[0013] An embodiment of the present application further provides an atomizer, comprising a housing, an atomizing core assembly, a base assembly, and a nozzle structure.

[0014] The nozzle structure is arranged on the shell; the base assembly and the shell together form a liquid storage cavity for storing the atomized matrix; one end of the atomizer core assembly is installed on the base assembly, and the other end extends into the liquid storage cavity and is connected to the nozzle assembly, and an atomization channel is provided on the atomizer core.

[0015] In one embodiment, the base assembly includes a sealing seat, which is installed in the housing. The atomizer core assembly includes an atomizer tube, a fixed tube, oil-guiding cotton, and a heater. One end of the atomizer tube abuts against the seal of the nozzle structure, and the other end of the atomizer tube away from the seal abuts against the sealing seat. The fixed tube is embedded in the atomizer tube, and the oil-guiding cotton and the heater are both installed in the fixed tube.

[0016] An installation hole is provided inside the oil-conducting cotton along its axial direction, and the heating element is accommodated in the installation hole, and the installation hole is used to form an atomization channel; an air intake channel is provided on the base assembly, and the air intake channel is connected to the atomization channel.

[0017] In one embodiment, a liquid collecting chamber in communication with the atomizing channel is provided in the base assembly, and a condensing element is provided in the liquid collecting chamber.

[0018] An embodiment of the present application further provides an atomization device, comprising a power supply host and an atomizer, wherein the power supply host is electrically connected to the atomizer, and the power supply host is used to supply power to the atomizer.

[0019] The beneficial effects of this application are:

[0020] The nozzle structure provided in the present application is used in conjunction with the atomizer core assembly and is arranged on the atomizer device. When the user uses the atomizer device, the negative pressure can drive the aerosol flow formed in the atomizer channel on the atomizer core assembly to pass through the air channel and be discharged from the air outlet for use by the user.

[0021] In order to further optimize the user experience, this application has taken into account the condensation phenomenon that may be encountered during the transmission of the aerosol. By controlling the change in the inner diameter of the air passage, we have created an environment that is conducive to the smooth passage of the aerosol. Even if condensation is generated when the aerosol passes through the air passage and adheres to the inner wall, the condensation will be cleverly guided to a location away from the area where the aerosol flows. This design effectively avoids the direct obstruction of the condensation to the flow of the aerosol, greatly reducing the risk of the condensation mixing with the aerosol, thereby ensuring the purity and quality of the aerosol, allowing users to enjoy a more refreshing and healthy atomization experience.

[0022] Furthermore, this application limits the minimum inner diameter of the air passage, ensuring that its inner diameter is greater than or equal to that of the atomization passage. This design significantly reduces the resistance of the air passage inner wall to aerosol flow, allowing the aerosol to pass unimpeded, thereby ensuring the integrity and concentration stability of the aerosol, allowing users to enjoy a purer and more efficient atomization effect.

[0023] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic structural diagram of an atomizer according to one embodiment of the present invention is shown;

[0026] Figure 2 A cross-sectional view of the structure of an atomizer according to one embodiment of the present invention is shown;

[0027] Figure 3 A cross-sectional view of the nozzle structure in one embodiment of the present invention is shown;

[0028] Figure 4 A schematic structural diagram of an atomizer in another embodiment of the present invention is shown;

[0029] Figure 5 A cross-sectional view of the structure of the atomizer in another embodiment of the present invention is shown.

[0030] Description of main component symbols:

[0031] 100-mouthpiece; 110-air outlet; 120-air passage; 121-first air passage section; 122-second air passage section; 130-sealing tube; 140-air passage; 141-stepped portion; 200-sealing element; 210-air passage; 220-connecting groove; 230-sealing ring; 300-atomizer; 301-clamping groove; 310-housing; 320-atomization passage; 330-atomization core assembly; 331-fixing tube; 332-oil-guiding cotton; 333-heating element; 334-atomization tube; 340-base assembly; 341-sealing seat; 342-liquid collecting chamber; 343-condensing element; 350-liquid storage chamber; 360-oil filling plug; 370-air inlet channel; 410-first electrode sheet; 420-second electrode sheet; 430-cotton-wrapped swab. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0035] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0036] The embodiments of the present application provide a nozzle structure, which relates to the field of electronic atomization technology and is mainly used to improve the user experience of atomization equipment.

[0037] Combine Figures 2 to 3 As shown, the nozzle structure provided in this embodiment is used in conjunction with an atomizer core assembly 330 . The atomizer core assembly 330 has an atomization channel 320 for forming an aerosol. The nozzle structure includes a nozzle piece 100 .

[0038] The mouthpiece 100 defines an air outlet 110 and an air passage 120. One end of the air passage 120 is connected to the air outlet 110, and the other end of the air passage 120 is connected to the atomizing passage 320. The inner diameter of at least part of the air passage 120 gradually decreases or increases along the air flow direction of the aerosol, and the minimum inner diameter of the air passage 120 is greater than or equal to the inner diameter of the atomizing passage 320. Specifically, Figure 5 As shown, the minimum diameter of the air passage 120 is L1, the inner diameter of the atomization passage 320 is L2, L1 ≥ L2; and the flow direction of the aerosol is the x direction.

[0039] In some embodiments, the gradual decrease or increase of at least part of the inner diameter of the air passage 120 along the air flow direction of the aerosol may include the following situations: the gradual decrease of at least part of the inner diameter of the air passage 120 along the air flow direction of the aerosol; or the gradual increase of at least part of the inner diameter of the air passage 120 along the air flow direction of the aerosol; or the gradual increase and then decrease of at least part of the inner diameter of the air passage 120 along the air flow direction of the aerosol, etc. The above embodiments are exemplary, and ordinary technicians in this field can make changes, modifications, replacements and modifications to the above embodiments within the scope of this application without specific limitations.

[0040] It's important to note that with frequent use or repeated manipulation of existing atomizers, water vapor in the air condenses into tiny droplets. These droplets gradually accumulate on the inner wall, where they slowly flow down the channel, forming a thin film of water. This film not only occupies the space normally reserved for aerosols to pass through, but also, due to its fluidity, directly physically obstructs the normal flow of aerosol particles within the channel, significantly reducing aerosol dispersion and atomization, making it difficult to achieve the desired fine and uniform atomization.

[0041] What is more complicated is that when aerosol particles pass through the air channel 120, they are very likely to collide and merge with condensation droplets along the way. This process not only aggravates the aggregation of aerosols, but also causes unnecessary liquid components to be mixed into the originally pure aerosol, changing its original physical and chemical properties, and greatly affecting the comfort of inhalation.

[0042] The nozzle structure provided in this embodiment is used in conjunction with the atomizer core assembly 330 and is provided on the atomizer device. When the user uses the atomizer device, the negative pressure can drive the aerosol flow formed in the atomizer channel 320 on the atomizer core assembly 330 to pass through the air channel 120 and be discharged from the air outlet 110 for use by the user; by limiting the minimum inner diameter of the air channel 120, that is, ensuring that its inner diameter is greater than or equal to the inner diameter of the atomizer channel 320. This design can greatly reduce the resistance of the inner wall of the air channel 120 to the flow of aerosol, allowing the aerosol to pass through unimpeded, thereby ensuring the integrity and concentration stability of the aerosol, allowing users to enjoy a purer and more efficient atomization effect. In addition, the present application also deeply considers the condensation phenomenon that may be encountered by the aerosol during the transmission process. By controlling the change in the inner diameter of the air channel 120, an environment that is conducive to the smooth passage of the aerosol is created. Even if condensation forms and adheres to the inner wall of the aerosol as it passes through the air passage 120, it is cleverly directed away from the aerosol flow area. This design effectively prevents direct obstruction of aerosol flow by condensation and significantly reduces the risk of condensation mixing with aerosol, thereby ensuring the purity and quality of the aerosol and providing users with a more refreshing and healthy atomization experience.

[0043] In some embodiments, the air passage 120 includes a first air passage section 121 and a second air passage section 122 that are connected; the first air passage section 121 is located on a side close to the atomization passage 320, and the inner diameter of the first air passage section 121 gradually decreases along the aerosol flow direction; the second air passage section 122 is located on a side close to the air outlet 110, and the inner diameter of the second air passage section 122 gradually increases along the aerosol flow direction; the connection between the first air passage section 121 and the second air passage section 122 is the minimum inner diameter of the air passage 120; by setting the above structure, when the aerosol passes through the air passage 120 and generates condensation on its inner wall, the wall hanging position of the condensation is far away from the aerosol passage path, which greatly reduces the risk of mixing of the condensation and the aerosol, thereby ensuring the purity and usage quality of the aerosol.

[0044] In some embodiments, the mouthpiece 100 is provided with an air passage 140 that communicates with the air outlet 110. The end of the air passage 140, remote from the air outlet 110, is sealedly connected to the atomizer core assembly 330. The inner wall of the air passage 140 is provided with multiple stepped portions 141 along its axis to form an air passage 120. As the inner diameter of the air passage 120 decreases along the aerosol flow direction, the inner diameter of each stepped portion 141 decreases sequentially along the aerosol flow direction. As the inner diameter of the air passage 120 increases along the aerosol flow direction, the inner diameter of each stepped portion 141 increases sequentially along the aerosol flow direction. The multiple stepped portions provided on the inner wall of the air passage 140 prolong the flow path of condensate on the inner wall of the air passage 140 and extend the time it takes for the condensate to flow into the atomizer channel 320, thereby ensuring the purity and quality of the aerosol passing through the air passage 140 and enhancing the user experience.

[0045] In some embodiments, the nozzle structure also includes a sealing tube 130 and a sealing member 200. The sealing tube 130 is arranged on the nozzle member 100 and is sleeved on the outside of the air tube 140. The sealing member 200 is sealed and connected between the atomization core assembly 330, the air tube 140 and the sealing tube 130. The sealing member 200 defines an air flow channel 210 with openings at both ends. The openings at both ends of the air flow channel 210 are sealed and connected to the air channel 120 and the atomization channel 320 respectively, so as to improve the connection sealing between the air channel 120 and the atomization channel 320, thereby ensuring the purity of the aerosol when it is inhaled.

[0046] In some embodiments, the seal 200 includes a connecting groove 220 and a sealing ring 230. The connecting groove 220 is provided on the side of the seal 200 facing the atomizer core assembly 330, and the sealing ring 230 is provided on the outer periphery of the seal 200. The atomizer core assembly 330 includes an atomizer tube 334, which is inserted into the connecting groove 220. The end of the air passage 140 away from the air outlet 110 abuts against the side of the seal 200 away from the atomizer tube 334. The sealing ring 230 abuts against the inner wall of the sealing tube 130, further improving the sealing performance of the connection between the air passage 120 and the atomizer passage 320.

[0047] In some embodiments, the inner wall of the multi-stepped portion 141 and the surface of the sealing member 200 enclose a liquid-blocking cavity for collecting condensate, thereby facilitating the collection of condensate formed on the inner wall of the air passage 120. The inner diameter of the airflow passage 210 is greater than or equal to the inner diameter of the atomization passage 320, and the inner diameter of the guide portion gradually increases along the airflow direction. This reduces contact between the collected condensate and the components of the atomization core assembly 330 within the atomization passage 320 as it falls under gravity and passes through the atomization passage 320, thereby preventing any impact on the atomization effect of the atomization core assembly 330.

[0048] Combine Figure 1 、 Figure 2 As shown, an embodiment of the present application further provides an atomizer 300 , including a housing 310 , an atomizing core assembly 330 , a base assembly 340 , and a nozzle structure.

[0049] The nozzle structure is arranged on the shell 310; the base assembly 340 and the shell 310 together form a liquid storage chamber 350 for storing the atomized matrix; one end of the atomizer core assembly 330 is installed on the base assembly 340, and the other end extends into the liquid storage chamber 350 to connect with the nozzle structure, and an atomization channel 320 is provided on the atomizer core.

[0050] In some embodiments, the base assembly 340 includes a sealing seat 341 , which is installed in the housing 310 , and the atomizer core assembly 330 is installed on the sealing seat 341 . The base assembly 340 is provided with an air inlet channel 370 , which is connected to the atomizer channel 320 .

[0051] In some embodiments, an oil filling hole connected to the liquid storage chamber 350 is opened on the shell 310, and an oil filling plug 360 is installed on the oil filling hole. The user can remove the oil filling plug 360 and inject the atomized matrix into the liquid storage chamber 350 through the oil filling hole, which is convenient and quick to operate.

[0052] Specifically, the atomizer core assembly 330 includes an atomizer tube 334, a fixed tube 331, oil-guiding cotton 332, and a heater 333; one end of the atomizer tube 334 is inserted into the connecting groove 220 of the seal 200, and the other end of the atomizer tube 334 away from the seal 200 abuts against the sealing seat 341. The fixed tube 331 is embedded in the atomizer tube 334, and the oil-guiding cotton 332 and the heater 333 are both installed in the fixed tube 331.

[0053] A mounting hole is provided in the oil-guiding cotton 332 along its axial direction, and the heating element 333 is accommodated in the mounting hole, which is used to form an atomization channel 320; the atomization matrix in the liquid storage chamber 350 can be immersed in the oil-guiding cotton 332, and the atomization matrix in the oil-guiding cotton 332 can be atomized by turning on the power of the heating element 333.

[0054] When a user uses the atomizer 300, by sucking from the air outlet 110 of the nozzle structure, the atomizing core assembly 330 can be driven to start working, and at the same time, air enters the atomizing channel 320 from the air inlet channel 370, mixes with the aerosol generated in the atomizing channel 320, and is finally sucked out, which is convenient to operate.

[0055] In some embodiments, a liquid collecting chamber 342 connected to the atomization channel 320 is provided in the base assembly 340, and a condensation piece 343 is provided in the liquid collecting chamber 342; specifically, the base assembly 340 also includes a connecting bottom plate, which is spliced with the sealing seat 341 to form the liquid collecting chamber 342, and the condensation piece 343 is specifically selected as condensation cotton, which is convenient for absorbing and collecting the condensation liquid falling through the atomization channel 320 to avoid overflow or backflow of the condensation liquid, thereby ensuring the user experience.

[0056] Combine Figure 1 、 Figure 4 As shown, an embodiment of the present application further provides an atomization device, including a power supply host and an atomizer 300 , wherein the power supply host is electrically connected to the atomizer 300 , and the power supply host is used to provide power for the atomization work of the atomizer 300 .

[0057] In some embodiments, a plurality of snap-in slots 301 are provided on the housing 310 of the atomizer 300, and a snap-in that cooperates with the snap-in slot 301 is provided on the power supply host. The snap-in is inserted into the snap-in slot 301 and is used to snap-in and install the power supply host and the atomizer 300, which is convenient for disassembly and assembly and easy to operate.

[0058] In some embodiments, a first electrode sheet 410 and a second electrode sheet 420 are provided on the connecting base plate. The first electrode sheet 410 and the second electrode sheet 420 are respectively connected to the two electrodes of the heating element 333. There are two first electrode sheets 410, and the two first electrode sheets 410 are centrally symmetrically arranged on the connecting base plate. The second electrode sheet 420 is arranged at the center position of the connecting base plate. The power supply host is provided with power supply contacts corresponding to the first electrode sheet 410 and the second electrode sheet 420. By setting two centrally symmetrical first electrode sheets 410, the user can normally connect the power supply of the heating element 333 when docking and installing the power supply host with the atomizer 300, regardless of whether it is installed forward or reverse, which is convenient to use.

[0059] In some embodiments, an air inlet hole connected to the air inlet channel 370 is opened on the connecting base plate. There are two air inlet holes, which are centrally symmetrically arranged on the connecting base plate. The power supply host is provided with air holes and corresponding channels corresponding to the air inlet holes. By setting two centrally symmetrical air holes, the user can connect the air inlet channel 370 when docking and installing the power supply host and the atomizer 300, regardless of whether it is installed forward or reversed, which is convenient for use.

[0060] In some embodiments, the atomization device further includes a cotton-wrapped rod 430, which is inserted into the atomization channel 320 during the production and transportation stages of the atomization device to provide support and protection for the corresponding atomization core assembly 330, thereby reducing the probability of damage to the atomization core assembly 330 and related components.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0062] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A nozzle structure, used in conjunction with an atomizing core assembly (330), characterized in that: The atomizing core assembly (330) has an atomizing channel (320) for forming an aerosol, and the nozzle structure includes: A mouthpiece (100) is defined with an air outlet (110) and an air passage (120), one end of the air passage (120) being in communication with the air outlet (110), and the other end of the air passage (120) being in communication with the atomization passage (320); At least part of the inner diameter of the air passage (120) gradually decreases or increases along the airflow direction of the aerosol, and the minimum inner diameter of the air passage (120) is greater than or equal to the inner diameter of the atomization passage (320).

2. The nozzle structure according to claim 1, characterized in that: The air passage (120) includes a first air passage section (121) and a second air passage section (122) connected to each other; The first airway section (121) is located on a side close to the atomization channel (320), and the inner diameter of the first airway section (121) gradually decreases along the aerosol flow direction; the second airway section (122) is located on a side close to the air outlet (110), and the inner diameter of the second airway section (122) gradually increases along the aerosol flow direction; the connection between the first airway section (121) and the second airway section (122) is the minimum inner diameter of the air passage (120).

3. The nozzle structure according to any one of claims 1 to 2, characterized in that: The mouthpiece (100) is provided with an air passage (140) in communication with the air outlet (110), and one end of the air passage (140) away from the air outlet (110) is sealedly connected to the atomizing core assembly (330); a plurality of stepped portions (141) are arranged on the inner wall of the air passage (140) along its axial direction to form the air passage (120); When the inner diameter of the air passage (120) gradually decreases along the airflow direction of the aerosol, the inner diameters of the stepped portions (141) at each level decrease in sequence along the aerosol flow direction; when the inner diameter of the air passage (120) gradually increases along the airflow direction of the aerosol, the inner diameters of the stepped portions (141) at each level increase in sequence along the aerosol flow direction.

4. The nozzle structure according to claim 3, characterized in that: The nozzle structure further comprises a sealing tube (130) and a sealing member (200), wherein the sealing tube (130) is arranged on the nozzle member (100) and is sleeved on the outer side of the air passage (140), and the sealing member (200) is sealedly connected between the atomizing core assembly (330), the air passage (140) and the sealing tube (130), and the sealing member (200) defines an air flow channel (210) with openings at both ends, and the openings at both ends of the air flow channel (210) are sealedly connected to the air passage (120) and the atomizing channel (320) respectively.

5. The nozzle structure according to claim 4, characterized in that: The sealing member (200) comprises a connecting groove (220) and a sealing ring (230), wherein the connecting groove (220) is arranged on a side of the sealing member (200) facing the atomizing core assembly (330), and the sealing ring (230) is arranged on an outer peripheral side of the sealing member (200); The atomizing core assembly (330) includes an atomizing tube (334), the atomizing tube (334) is inserted into the connecting groove (220), the end of the air passage (140) away from the air outlet (110) abuts against the side of the sealing member (200) away from the atomizing tube (334), and the sealing ring (230) abuts against the inner wall of the sealing tube (130).

6. The nozzle structure according to claim 4, characterized in that: The inner walls of the multiple steps (141) and the surface of the sealing member (200) are combined to form a liquid-blocking cavity for collecting condensate; And / or, the inner diameter of the airflow channel (210) is greater than or equal to the inner diameter of the atomization channel (320), and the inner diameter of the airflow channel (210) gradually increases along the airflow direction.

7. An atomizer (300), characterized in that: include: Housing (310); The suction nozzle structure according to any one of claims 1 to 6, wherein the suction nozzle structure is arranged on the housing (310); A base assembly (340), wherein the base assembly (340) and the housing (310) together form a liquid storage chamber (350) for storing an atomized matrix; An atomizing core assembly (330), one end of which is mounted on the base assembly (340), and the other end of which extends into the liquid storage cavity (350) and is connected to the mouthpiece (100), and an atomizing channel (320) is provided on the atomizing core.

8. The atomizer (300) according to claim 7, characterized in that The base assembly (340) includes a sealing seat (341), and the sealing seat (341) is installed in the shell (310). The atomizing core assembly (330) includes an atomizing tube (334), a fixing tube (331), oil-guiding cotton (332), and a heating element (333); one end of the atomizing tube (334) abuts against the nozzle structure, and the other end of the atomizing tube (334) away from the sealing element (200) abuts against the sealing seat (341), the fixing tube (331) is embedded in the atomizing tube (334), and the oil-guiding cotton (332) and the heating element (333) are both installed in the fixing tube (331); The oil-conducting cotton (332) is provided with a mounting hole extending through the oil-conducting cotton (332) along its axial direction, the heating element (333) is accommodated in the mounting hole, and the mounting hole forms an atomization channel (320); the base assembly (340) is provided with an air intake channel (370), and the air intake channel (370) is communicated with the atomization channel (320).

9. The atomizer (300) according to claim 7, characterized in that A liquid collecting chamber (342) communicating with the atomizing channel (320) is provided in the base assembly (340), and a condensing element (343) is provided in the liquid collecting chamber (342).

10. An atomizing device, characterized in that: It comprises a power supply host and an atomizer (300) according to any one of claims 7 to 9, wherein the power supply host is electrically connected to the atomizer (300), and the power supply host is used to supply power to the atomizer (300).

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