Atomizer and aerosol generating device

Abstract

The utility model relates to the technical field of electronic atomization equipment, in particular to an atomizer which comprises a liquid bin, a breather pipe arranged in the liquid bin and an atomization core assembly arranged in the breather pipe. And the liquid inlet hole and the air return hole are respectively used for communicating the liquid bin and the atomizing core assembly. The utility model also relates to an aerosol generating device. According to the technical scheme, the air return hole can be communicated with the outside through the atomization core assembly, when negative pressure is generated in the liquid bin, air can enter the liquid bin through the air return hole to adjust the internal air pressure of the liquid bin, the air pressure in the atomization core assembly and the air pressure of the liquid bin are kept balanced, and the atomization effect is improved. The liquid supply capacity of the liquid bin is improved, so that the problem of unsmooth liquid supply caused by unbalanced air pressure in the liquid bin is avoided, dry burning of the atomizing core assembly is prevented, scorched smell is avoided, the performance of the aerosol generating device is improved, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization equipment, and more particularly to an atomizer and an aerosol generating device. BACKGROUND

[0002] With the advent of atomizer products, there are more and more styles of atomizers on the market. In the prior art, an atomizer generally comprises a liquid cup and an atomization assembly. The atomization assembly is assembled in the liquid cup, and a high-temperature heating aerosol substrate forms a high-temperature vapor. The atomization assembly generally comprises a liquid guide, a liquid tank, a heating wire, and an electrode. The liquid guide contacts the aerosol substrate of the liquid tank and the heating wire, respectively. The heating wire is connected to the electrode, and a high-temperature aerosol is generated when the electrode is powered on to form an aerosol. However, the pressure in the liquid cup decreases continuously during the atomization process, and when the liquid cup is in a negative pressure state, the flow of the aerosol substrate in the liquid cup is not smooth, which leads to insufficient liquid supply to the atomization core, and even the atomization core cannot be supplied with liquid, thereby easily producing a burnt taste, resulting in unreliable quality of the atomizer and greatly affecting the user experience.

[0003] Therefore, the prior art cannot meet our needs. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the embodiments of the present application is that the aerosol substrate in the liquid cup is not smooth in flow when the liquid cup is in a negative pressure state, which leads to insufficient liquid supply to the atomization core, and even the atomization core cannot be supplied with liquid, thereby easily producing a burnt taste, resulting in unreliable quality of the atomizer and greatly affecting the user experience.

[0005] In order to solve the above technical problems, the embodiments of the present application provide an atomizer, which adopts the following technical solutions:

[0006] An atomizer comprises a liquid tank, an air pipe arranged in the liquid tank, and an atomization core assembly arranged in the air pipe. At least one liquid inlet hole and an air return hole are arranged on the air pipe, and the liquid inlet hole and the air return hole are respectively used for connecting the liquid tank and the atomization core assembly.

[0007] Further, the atomization core assembly comprises a liquid storage cotton, which is arranged along the axial direction of the air pipe and adheres to the inner wall of the air pipe. The liquid inlet hole is connected to the bottom end of the liquid storage cotton, and the air return hole is connected to the upper end of the liquid storage cotton.

[0008] Further, the atomization core assembly further comprises a liquid guide cotton arranged in the liquid storage cotton and a heating element arranged in the liquid guide cotton. The liquid guide cotton adheres to one side of the liquid storage cotton. The liquid inlet hole is arranged at the lower end of the air pipe, and the heating element adheres to the liquid guide cotton.

[0009] Further, the liquid guide cotton and the heating element are arranged between the liquid inlet hole and the air return hole.

[0010] Further, the atomizing core assembly further comprises a sealing base, the sealing base is sealed to one side of the liquid tank, the bottom end of the air tube is arranged on the sealing base and the air tube is contained in the liquid tank; the sealing base comprises a supporting portion, a sealing portion and an air inlet protruding portion arranged on the supporting portion; the top of the air inlet protruding portion supports the bottom of the liquid guide cotton, the outer circumferential surface of the air inlet protruding portion is matched with the inner wall of the liquid storage cotton, the top of the supporting portion supports the liquid storage cotton, the outer circumferential surface of the sealing portion is sealingly connected with the inner wall of the liquid tank, and the sealing base is further provided with a fixing structure below.

[0011] Further, the liquid inlet hole is formed by extending inward from the bottom end of the air tube, and a plurality of liquid inlet holes are arranged uniformly and spaced apart around the circumference of the air tube.

[0012] Further, the ratio of the diameter of the air return hole to the diameter of the air tube is in the range of 1:15-1:19.

[0013] Further, the diameter of the air return hole is less than 1.0 mm; and / or,

[0014] The diameter of the air tube is 9-11 mm.

[0015] Further, the diameter of the air return hole is 0.6 mm; and / or,

[0016] The diameter of the air tube is 10.2 mm.

[0017] To solve the above technical problems, the embodiment of the present application also provides an aerosol generating device, which adopts the technical scheme as follows:

[0018] An aerosol generating device, comprising a host and the atomizer.

[0019] Compared with the prior art, the embodiment of the present application has the following beneficial effects: by opening the air return hole on the air tube, the air return hole is connected with the outside through the atomizing core assembly, when negative pressure is generated in the liquid tank, air can enter the liquid tank through the air return hole to adjust the internal air pressure of the liquid tank, so that the air pressure in the atomizing core assembly and the air pressure of the liquid tank are balanced, the liquid supply capacity of the liquid tank is improved, the problem of poor liquid supply caused by unbalanced air pressure in the liquid tank is avoided, dry burning of the atomizing core assembly is prevented, and the generation of burnt smell is avoided, the performance of the aerosol generating device is improved, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an exploded view of the atomizer according to an embodiment of this application;

[0022] Figure 2 This is a cross-sectional view of an atomizer according to an embodiment of this application;

[0023] Figure 3 This is a front view of the ventilation tube according to an embodiment of this application;

[0024] Figure 4 This is a cross-sectional view of the vent pipe according to an embodiment of this application;

[0025] Figure 5 This is a cross-sectional view of the liquid storage cotton according to an embodiment of this application.

[0026] Reference numerals: 1. Liquid tank; 2. Vent pipe; 21. Liquid inlet; 22. Air return port; 3. Liquid storage cotton; 4. Liquid guiding cotton; 5. Heating element; 6. Sealing base; 61. Support part; 62. Sealing part; 63. Air inlet protrusion; 64. Fixing structure; 100. Atomizing core assembly. Detailed Implementation

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0030] Please see the appendix Figure 1 To be continued Figure 5 As shown, this application provides an atomizer that adopts the following technical solution:

[0031] An atomizer includes: a liquid tank 1, a vent pipe 2 disposed within the liquid tank 1, and an atomizing core assembly 100 disposed within the vent pipe 2. The vent pipe 2 has at least one liquid inlet 21 and one air return 22, which connect the liquid tank 1 and the atomizing core assembly 100, respectively. This application, by providing the air return 22 on the vent pipe 2, allows the air return 22 to connect to the outside environment through the atomizing core assembly 100. When a negative pressure is generated in the liquid tank, air can enter the liquid tank 1 through the air return 22 to regulate the internal air pressure of the liquid tank 1, maintaining a balance between the air pressure inside the atomizing core assembly 100 and the air pressure in the liquid tank 1. This improves the liquid supply capacity of the liquid tank 1, thereby avoiding the problem of insufficient liquid supply caused by pressure imbalance within the liquid tank 1, preventing the atomizing core assembly 100 from dry burning and producing a burnt smell, improving the performance of the aerosol generating device, and enhancing the user experience.

[0032] As attached Figure 1 To be continued Figure 2 As shown, the atomizing core assembly 100 further includes a liquid storage cotton 3, which is disposed along the axial direction of the vent pipe 2 and attached to the inner wall of the vent pipe 2. The liquid inlet 21 is connected to the bottom end of the liquid storage cotton 3, and the air return 22 is connected to the upper end of the liquid storage cotton 3. The liquid inlet 21 and the air return 22 are separately disposed and connected to different positions of the liquid storage cotton 3, which facilitates the connection of the ventilation groove 10 to the outside environment. This avoids the problem of poor liquid supply caused by the pressure imbalance between the liquid tank and the atomizing core assembly 100, which could lead to incomplete atomization of the aerosol matrix in the user's mouth, resulting in problems such as "bubble jamming". It also prevents the atomizing core assembly 100 from burning dry, avoids the production of a burnt smell, improves the performance of the aerosol generating device, and enhances the user experience.

[0033] As attached Figure 1 To be continued Figure 2As shown, the atomizing core assembly 100 further includes a liquid-guiding cotton 4 disposed within the liquid storage cotton 3 and a heating element 5 disposed within the liquid-guiding cotton 4. The liquid-guiding cotton 4 is attached to one side of the liquid storage cotton 3, the liquid inlet 21 is located at the lower end of the vent pipe 2, and the heating element 5 is attached to the liquid-guiding cotton 4. The liquid storage cotton 3 absorbs the aerosol matrix in the liquid tank 1 through capillary force, while the liquid-guiding cotton 4 absorbs the aerosol matrix in the liquid storage cotton 3 through capillary force. The liquid-guiding cotton 4 is attached to both the liquid storage cotton 3 and the heating element 5, maximizing the effective contact area and ensuring a more comprehensive reaction effect. This prevents the aerosol matrix from failing to fully absorb the heat generated by the heating element 5, thus avoiding excess heat causing dry burning of the atomizing core assembly 100, preventing the production of a burnt smell, improving the performance of the aerosol generating device, and enhancing the user experience.

[0034] As attached Figure 1 To be continued Figure 3 As shown, the liquid-guiding cotton 4 and the heating element 5 are further disposed between the liquid inlet 21 and the air return hole 22. The air return hole 22 not only reduces the negative pressure in the liquid chamber 1, thereby reducing the obstruction of the liquid storage cotton 3 in absorbing the aerosol matrix and ensuring that the liquid storage cotton 3 supplies liquid to the liquid-guiding cotton 4 without causing core clogging, but also allows the aerosol matrix to permeate into the vent pipe 2 through the air return hole 22. Since the liquid storage cotton 3 is in close contact with the inner wall of the vent pipe 2, the aerosol matrix permeating into the air return hole 22 will be absorbed by the liquid storage cotton 3 and diffused to all parts of the liquid storage cotton 3, allowing air to pass normally through the oil storage cotton and enter the liquid chamber 1 through the air return hole, ensuring the normal operation of the atomizing core assembly 100.

[0035] As attached Figure 1 To be continued Figure 2As shown, the atomizing core assembly 100 further includes a sealing base 6, which is sealed to one side of the liquid tank 1. The bottom end of the vent pipe 2 is located on the sealing base 6 and is accommodated in the liquid tank 1. The sealing base 6 includes a support portion 61, a sealing portion 62, and an air inlet protrusion 63 disposed on the support portion 61. The top of the air inlet protrusion 63 supports the bottom of the liquid guiding cotton 4, and the outer peripheral surface of the air inlet protrusion 63 is in contact with the inner wall of the liquid storage cotton 3. The top of the support portion 61 supports the liquid storage cotton 3. The outer peripheral surface of the sealing portion 62 is sealed to the inner wall of the liquid tank 1, and a fixing structure 64 is also provided below the sealing base 6. The sealing base 6 seals the opening channel at the bottom of the liquid tank 1 for installing the vent pipe 2. The vent pipe 2 is installed in the liquid tank 1 through the opening channel at the bottom of the liquid tank 1 and is firmly fixed on the sealing base 6. Due to gravity, the aerosol matrix gathers at the bottom of the liquid tank 1, and the aerosol matrix in the liquid tank 1 can completely enter the liquid inlet 21, ensuring that the aerosol matrix can be completely atomized in the liquid tank 1 without residue. The support part 61 can well support the liquid storage cotton 3, and the air inlet protrusion 63 can well support the liquid guiding cotton 4, ensuring that the liquid guiding cotton 4 is in close contact with the liquid storage cotton 3 and the heating element 5 respectively, maximizing the effective contact area and making the reaction effect more comprehensive, so that the liquid storage cotton 3 can continuously supply liquid to the liquid guiding cotton 4 without causing clogging. The outer peripheral surface of the sealing part 62 is sealed to the inner wall of the liquid tank 1 to ensure the airtightness of the liquid tank 1. The fixing structure 64 is used to support and fix the sealing base 6 to prevent the sealing base 6 from deforming.

[0036] Furthermore, the fixing structure 64 is configured as a fixing plate, which is disposed inside the sealing part 62 and closely attached to the end face of the support part 61 away from the air inlet protrusion 63. Adding the fixing plate can further improve the support capacity of the support part 61, prevent the support part 61 from deforming, and ensure that the support part 61 can support the liquid storage cotton 3 well. The air inlet protrusion 63 can support the liquid guiding cotton 4 well, thereby ensuring that the liquid guiding cotton 4 is in close contact with the liquid storage cotton 3 and the heating element 5 respectively, so that the liquid storage cotton 3 can continuously supply liquid to the liquid guiding cotton 4 without causing the core to smother.

[0037] Furthermore, the sealing base 6 is made of silicone material with good sealing performance to ensure a tight seal.

[0038] As attached Figure 2 To be continued Figure 4As shown, further, the liquid inlet hole 21 extends inward from the bottom end of the vent pipe 2, and multiple liquid inlet holes 21 are provided, which are evenly spaced around the circumference of the vent pipe 2. The aerosol matrix is ​​uniformly attached to the liquid storage cotton 3 along the radial direction of the vent pipe 2 through the multiple evenly spaced liquid inlet holes 21. The aerosol matrix on the liquid storage cotton 3 is evenly distributed, ensuring that the liquid delivery effect is optimal, and the mixing ratio of the aerosol matrix and the liquid storage cotton 3 is balanced, resulting in better atomization.

[0039] Furthermore, the inward extension depth H of the liquid inlet hole 21 is 1-3 mm. This ensures optimal liquid delivery, a balanced mixing ratio between the aerosol matrix and the liquid storage cotton 3, and better atomization.

[0040] It is understood that the inward extension depth H of the liquid inlet hole 21 is any value of 1mm, 2mm, 3mm or any two of these values. In this embodiment, the inward extension depth H of the liquid inlet hole 21 is 2mm.

[0041] As attached Figure 2 To be continued Figure 4 As shown, the ratio of the diameter of the return air hole 22 to the diameter of the vent pipe 2 is in the range of 1:15 to 1:19. When the return air hole 22 is too large, an excessive amount of aerosol matrix permeates into the liquid storage cotton 3 through the return air hole 22, which easily accumulates at the position where the liquid storage cotton 3 is attached to the return air hole 22. This obstructs air from entering the liquid tank 1 through the return air hole 22, leading to problems such as dry burning or "bubble jamming" of the atomizing core assembly 100. Therefore, this application limits the diameter of the return air hole 22 to ensure that air can enter the liquid tank 1 through the return air hole 22 while avoiding excessive aerosol matrix permeating into the liquid tank 1. This regulates the internal air pressure of the liquid tank 1, keeping the air pressure inside the atomizing core assembly 100 balanced with the air pressure in the liquid tank 1. This improves the liquid supply capacity of the liquid tank 1, thereby avoiding the problem of poor liquid supply caused by the imbalance of air pressure inside the liquid tank 1, preventing the atomizing core assembly 100 from dry burning, avoiding the production of a burnt smell, improving the performance of the aerosol generating device, and enhancing the user experience.

[0042] It is understood that the ratio of the diameter of the return air hole 22 to the diameter of the vent pipe 2 is any one of the following values ​​or any two of the following: 1:15, 1:16, 1:17, 1:18, 1:19.

[0043] As attached Figure 2 To be continued Figure 4 As shown, further, the diameter of the return air hole 22 is less than 1.0 mm; and / or,

[0044] The diameter of the vent pipe 2 is 9-11 mm.

[0045] To prevent excessive aerosol matrix from permeating into the return air hole 22, air can be allowed to enter the liquid tank 1 through the return air hole 22 to regulate the internal air pressure of the liquid tank 1. This ensures that the air pressure inside the atomizing core assembly 100 is balanced with the air pressure in the liquid tank 1, improving the liquid supply capacity of the liquid tank 1. This avoids the problem of poor liquid supply caused by pressure imbalance in the liquid tank 1, prevents the atomizing core assembly 100 from dry burning, avoids the production of a burnt smell, improves the performance of the aerosol generating device, and enhances the user experience.

[0046] Furthermore, the air return hole 22 described in this application is set to one, but multiple air return holes 22 can also be designed. When the position of a certain air return hole 22 that is in contact with the liquid storage cotton 3 is covered by the aerosol matrix, the other air return holes 22 can allow air to pass through normally, ensuring the ability of the air return hole 22 to eliminate negative pressure.

[0047] As attached Figure 2 To be continued Figure 4 As shown, further, the diameter of the return air hole 22 is 0.6 mm; and / or,

[0048] The diameter of the vent pipe 2 is 10.2 mm.

[0049] The vent 22 is configured with this diameter to ensure that the gas entering the liquid storage cotton 3 to eliminate negative pressure and the aerosol matrix penetrating into the liquid storage cotton 3 are both optimized simultaneously. This facilitates pressure relief, prevents negative pressure generation, improves gas replenishment efficiency, and also facilitates rapid liquid guidance, prevents bubble jamming, and lubricates the atomizing core assembly 100, preventing it from dry burning. This improves the performance of the aerosol generating device and enhances the user experience.

[0050] Furthermore, the total height of the vent tube 2 is 25.88 mm, of which the height for accommodating the liquid-retaining cotton 3 is 19.3 mm, meaning the height of the liquid-retaining cotton 3 is 19.3 mm. The inner diameter of the vent tube 2 at the connection point to the airway is 4.5 mm, and the outer diameter is 6.1 mm. The inner diameter of the liquid-retaining cotton 3 is 6.5 mm, and its outer diameter is equal to that of the vent tube 2, which is 10.2 mm.

[0051] Based on the atomizer described above, this application also provides an aerosol generating device, which adopts the technical solution described below:

[0052] An aerosol generating device includes a main unit and the atomizer.

[0053] This application provides a return air hole 22 on the vent pipe 2, allowing the return air hole 22 to connect to the outside through the atomizing core assembly 100. When a negative pressure is generated in the liquid tank, air can enter the liquid tank 1 through the return air hole 22 to regulate the internal air pressure of the liquid tank 1, thereby maintaining a balance between the air pressure inside the atomizing core assembly 100 and the air pressure in the liquid tank 1. This improves the liquid supply capacity of the liquid tank 1, thereby avoiding the problem of poor liquid supply caused by the imbalance of air pressure inside the liquid tank 1, preventing the atomizing core assembly 100 from burning dry, avoiding the production of a burnt smell, improving the performance of the aerosol generating device, and enhancing the user experience.

[0054] Furthermore, the main unit includes a control panel, a microphone assembly, and a battery. The battery powers the control panel, the microphone assembly, and the atomizer. When the user inhales through the mouthpiece of the aerosol generating device, outside air passes through the microphone assembly, which generates a start signal and transmits it to the control panel. The control panel controls the atomizer core assembly 100 to operate, causing the atomizer core assembly 100 to generate aerosol, which mixes with outside air and is inhaled into the user's mouth through the mouthpiece.

[0055] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. An atomizer characterized by, The atomizer comprises a liquid tank, a ventilation pipe arranged in the liquid tank, and an atomizing core assembly arranged in the ventilation pipe, wherein at least one liquid inlet hole and a gas return hole are arranged on the ventilation pipe, and the liquid inlet hole and the gas return hole are used for connecting the liquid tank and the atomizing core assembly, respectively.

2. The atomizer of claim 1, wherein, The atomizing core assembly comprises a liquid storage cotton, which is arranged along the axial direction of the ventilation pipe and adheres to the inner wall of the ventilation pipe, the liquid inlet hole is connected to the bottom end of the liquid storage cotton, and the gas return hole is connected to the upper end of the liquid storage cotton.

3. The atomizer of claim 2, wherein, The atomizing core assembly further comprises a liquid guide cotton arranged in the liquid storage cotton and a heating element arranged in the liquid guide cotton, the liquid guide cotton adheres to one side of the liquid storage cotton, the liquid inlet hole is arranged at the lower end of the ventilation pipe, and the heating element adheres to the liquid guide cotton.

4. The atomizer of claim 3, wherein, The liquid guide cotton and the heating element are arranged between the liquid inlet hole and the gas return hole.

5. The atomizer of claim 3, wherein, The atomizing core assembly further comprises a sealing base, which is sealed to one side of the liquid tank, the bottom end of the ventilation pipe is arranged on the sealing base, and the ventilation pipe is contained in the liquid tank; the sealing base comprises a support portion, a sealing portion and an air inlet protrusion portion arranged on the support portion; the top of the air inlet protrusion portion supports the bottom of the liquid guide cotton, the outer circumferential surface of the air inlet protrusion portion adheres to the inner wall of the liquid storage cotton, the top of the support portion supports the liquid storage cotton, the outer circumferential surface of the sealing portion is sealingly connected to the inner wall of the liquid tank, and a fixing structure is further arranged below the sealing base.

6. The atomizer of claim 2, wherein, The liquid inlet hole is formed by extending inward from the bottom end of the ventilation pipe, and a plurality of liquid inlet holes are arranged uniformly and spaced apart in the circumferential direction of the ventilation pipe.

7. The atomizer of any of claims 1-6, wherein, The ratio of the diameter of the gas return hole to the diameter of the ventilation pipe ranges from 1:15 to 1:

19.

8. The atomizer of any of claims 1-6, wherein, The diameter of the gas return hole is less than 1.0 mm; and / or The diameter of the ventilation pipe is 9-11 mm.

9. The atomizer of any of claims 1-6, wherein, The diameter of the gas return hole is 0.6 mm; and / or The diameter of the ventilation pipe is 10.2 mm.

10. An aerosol generating device, characterized by, The atomizer comprises a main machine and the atomizer according to any one of claims 1-9.

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