Atomization device

Abstract

The utility model provides an atomization device which comprises a shell, an atomization assembly and a control assembly, the shell is provided with an air inlet channel, an air inlet and an air outlet, and the air inlet and the air outlet are both communicated with the air inlet channel; the atomizer is arranged in the air inlet channel; the liquid blocking vent valve is arranged in the air inlet channel and located between the atomizer and the air inlet, the liquid blocking vent valve is provided with a first air channel and a second air channel, the first air channel is communicated with the air inlet channel, the second air channel comprises an oleophylic channel section and an oleophobic channel section, and the oleophylic channel section and the oleophobic channel section are arranged in the radial direction of the air inlet channel; the oleophylic channel section is communicated with the air inlet channel and the oleophobic channel section, and the oleophobic channel section is communicated with the first air channel. The aerosol generating substrate in the atomizer can be prevented from leaking.

Description

Technical Field

[0001] This application relates to the technical field of electronic cigarettes, and particularly to an atomization device. Background Art

[0002] The atomizer of the atomization device can heat the aerosol - generating substrate, causing the aerosol - generating substrate to be atomized into aerosol. However, the inadequately atomized aerosol - generating substrate may accumulate on the atomizer due to failure to evaporate in time, resulting in the inadequately atomized aerosol - generating substrate leaking from the air inlet at the bottom of the atomization device. Summary of the Utility Model

[0003] This application provides an atomization device to solve the technical problem that the inadequately atomized aerosol - generating substrate is likely to leak from the air inlet at the bottom of the atomization device.

[0004] In a first aspect, this application provides an atomization device, comprising:

[0005] A housing, which is provided with an air inlet channel, an air inlet, and an air outlet, and both the air inlet and the air outlet communicate with the air inlet channel;

[0006] An atomizer, which is arranged in the air inlet channel; and

[0007] A liquid - blocking and air - permeable valve, which is arranged in the air inlet channel and is located between the atomizer and the air inlet. The liquid - blocking and air - permeable valve is provided with a first air passage and a second air passage. The first air passage communicates with the air inlet channel. The second air passage includes an oil - wettable channel section and an oil - repellent channel section. The oil - wettable channel section and the oil - repellent channel section are arranged radially along the air inlet channel. The oil - wettable channel section communicates with the air inlet channel and the oil - repellent channel section, and the oil - repellent channel section communicates with the first air passage.

[0008] In a further technical solution, the liquid - blocking and air - permeable valve comprises a valve body and a cover body. The cover body is detachably connected to the valve body. The first air passage is arranged in the valve body, and a second air passage is formed by an interval between the valve body and the cover body.

[0009] In a further technical solution, a first surface and a second surface connected to each other are provided on the side of the cover body facing the valve body, and a third surface and a fourth surface connected to each other are provided on the side of the valve body facing the cover body. An infiltration coating is provided on the first surface and the third surface, and a non - infiltration coating is provided on the second surface and the fourth surface. An oil - wettable channel section is formed by an interval between the first surface and the third surface, and an oil - repellent channel section is formed by an interval between the second surface and the fourth surface.

[0010] In a further technical solution, the infiltration coating is a silica coating, a nano - composite coating, or a water - based polyurethane coating, and the non - infiltration coating is a Teflon coating, a fluorocarbon polymer coating, or a silicone resin coating.

[0011] A further technical solution thereof is that the distance between the first surface and the third surface is greater than the distance between the second surface and the fourth surface.

[0012] A further technical solution thereof is that the valve body is provided with a first plugging portion, and the cover body is provided with a second plugging portion, and the first plugging portion is in plugging fit with the second plugging portion.

[0013] A further technical solution thereof is that the outer periphery of the second airway around the axis of the liquid-blocking ventilation valve is arranged in a ring shape.

[0014] A further technical solution thereof is that the number of the first airways is multiple, and the multiple first airways are arranged at intervals in sequence along the axial direction of the liquid-blocking ventilation valve, and each first airway extends along the axial direction of the liquid-blocking ventilation valve.

[0015] A further technical solution thereof is that the number of the second airways is multiple, and the multiple second airways are arranged at intervals in sequence on the outer periphery around the axis of the liquid-blocking ventilation valve.

[0016] A further technical solution thereof is that the outer periphery of the first airway around the axis of the liquid-blocking ventilation valve is arranged in a ring shape.

[0017] The beneficial effect of the present application is as follows: Different from the prior art, by arranging a liquid-blocking ventilation valve including a first airway and a second airway in the atomization device and directly connecting the first airway to the air inlet passage, the smoothness of air flow can be improved; the special structure of the oil-loving channel section and the oil-repellent channel section arranged in the second airway enables the aerosol-forming matrix not to enter the oil-repellent channel section under a certain air pressure due to the narrow air outlet gap and the action of liquid surface tension when the aerosol-forming matrix drops at the connection of the oil-loving channel section and the oil-repellent channel section, thereby avoiding the leakage of the aerosol-forming matrix from the atomization device through the second airway and the first airway, while the gas can flow from the direction of the oil-repellent channel section to the direction of the oil-loving channel section, so the air permeability of the atomization device can be realized.

[0018] That is, the present application can effectively block the leakage of the aerosol-forming matrix while realizing gas circulation, thereby improving the technical problem that the aerosol-forming matrix in the atomizer is prone to leakage. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the atomization device provided by the present application;

[0021] Figure 2 Schematic diagram of the assembled structure of an embodiment of the liquid-blocking ventilation valve provided by the present application;

[0022] Figure 3 Schematic diagram of the assembled structure of another embodiment of the liquid-blocking ventilation valve provided by the present application;

[0023] Figure 4 is Figure 2 Cross-sectional schematic diagram;

[0024] Figure 5 Schematic diagram of the structure of another angle of the liquid-blocking ventilation valve provided by the present application;

[0025] Figure 6 Schematic diagram of the disassembled structure of an embodiment of the liquid-blocking ventilation valve provided by the present application;

[0026] Figure 7 Schematic diagram of the disassembled structure of another embodiment of the liquid-blocking ventilation valve provided by the present application.

[0027] Explanation of the reference numerals in the drawings:

[0028] Atomization device 10, housing 100, intake passage 110, intake port 120, outlet port 130, atomizer 200, liquid-blocking ventilation valve 300, first airway 310, second airway 320, oil-wetting passage section 321, oil-repellent passage section 322, cover body 301, first surface 3011, second surface 3012, infiltration coating 3013, second insertion part 3014, valve body 302, third surface 3021, fourth surface 3022, non-infiltration coating 3023, first insertion part 3024. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0031] An embodiment of the present utility model provides an atomization device that can prevent the aerosol - generating matrix in the atomizer from leaking.

[0032] As Figures 1 - 5 shown, the atomization device 10 includes a housing 100, an atomizer 200, and a liquid - blocking and air - permeable valve 300. The housing 100 is provided with an air inlet passage 110, an air inlet 120, and an air outlet 130. Both the air inlet 120 and the air outlet 130 communicate with the air inlet passage 110; the atomizer 200 is disposed in the air inlet passage 110; the liquid - blocking and air - permeable valve 300 is disposed in the air inlet passage 110 and is located between the atomizer 200 and the air inlet 120. The liquid - blocking and air - permeable valve 300 is provided with a first air passage 310 and a second air passage 320. The first air passage 310 communicates with the air inlet passage 110. The second air passage 320 includes an oil - loving passage section 321 and an oil - repelling passage section 322. The oil - loving passage section 321 and the oil - repelling passage section 322 are arranged radially along the air inlet passage 110. The oil - loving passage section 321 communicates with the air inlet passage 110 and the oil - repelling passage section 322, and the oil - repelling passage section 322 communicates with the first air passage 310.

[0033] By providing the liquid - blocking and air - permeable valve 300 including the first air passage 310 and the second air passage 320 in the atomization device 10 and directly connecting the first air passage 310 to the air inlet passage 110, the smoothness of air flow can be improved; by setting the special structure of the oil - loving passage section 321 and the oil - repelling passage section 322 in the second air passage 320, when the aerosol - generating matrix drips at the connection of the oil - loving passage section 321 and the oil - repelling passage section 322, due to the narrow air - outlet gap, under the action of surface tension, the aerosol - generating matrix will not enter the oil - repelling passage section 322 under a certain air pressure, thus avoiding the leakage of the aerosol - generating matrix from the atomization device 10 through the second air passage 320 and the first air passage 310, while the gas can flow from the direction of the oil - repelling passage section 322 to the direction of the oil - loving passage section 321, so the air permeability of the atomization device 10 can be realized.

[0034] That is, the present application can effectively block the leakage of the aerosol - generating matrix while realizing gas circulation, thereby improving the technical problem that the aerosol - generating matrix in the atomizer 200 is prone to leakage.

[0035] In some embodiments, the liquid - blocking and air - permeable valve 300 includes a valve body 302 and a cover body 301. The cover body 301 is detachably connected to the valve body 302. The first air passage 310 is provided in the valve body 302, and a second air passage 320 is formed at an interval between the valve body 302 and the cover body 301.

[0036] In this way, users or maintenance personnel can easily open the cover body 301, check the conditions of the first air passage 310 and the second air passage 320, and perform regular cleaning or maintenance work, thereby preventing the blockage of the air passage.

[0037] In addition, since the valve body 302 and the cover body 301 are detachably connected, when a certain part of the valve body is damaged or needs to be upgraded, it is possible to replace individual components such as the valve body 302 or the cover body 301 without replacing the entire liquid-blocking ventilation valve 300, reducing the maintenance cost.

[0038] In some embodiments, the valve body 302 may be provided with a first insertion portion 3024, and the cover body 301 is provided with a second insertion portion 3014, and the first insertion portion 3024 is in insertion fit with the second insertion portion 3014.

[0039] In some embodiments, the first insertion portion 3024 may be a protrusion, and the second insertion portion 3014 is a through hole; alternatively, the first insertion portion 3024 may be a through hole, and the second insertion portion 3014 is a protrusion.

[0040] It can be understood that when cleaning or inspecting the internal components of the valve, the user only needs to align the position and gently press the cover body 301 downward, so that the protrusion on the cover body 301 is inserted into the through hole of the valve body 302 until it is completely inserted, and the insertion fit between the first insertion portion 3024 and the second insertion portion 3014 can be achieved. Similarly, when disassembling, the user only needs to lift the cover body 301 upward with moderate force, and the protrusion structure will be pulled out of the through hole without any tools, and the operation is simple and fast, which is convenient for the user to perform internal cleaning or maintenance.

[0041] In some embodiments, a first surface 3011 and a second surface 3012 are connected on one side of the cover body 301 facing the valve body 302, and a third surface 3021 and a fourth surface 3022 are connected on one side of the valve body 302 facing the cover body 301. An infiltration coating 3013 is provided on the first surface 3011 and the third surface 3021, and a non-infiltration coating 3023 is provided on the second surface 3012 and the fourth surface 3022. An oil-wetting channel section 321 is formed at an interval between the first surface 3011 and the third surface 3021, and an oil-repellent channel section 322 is formed at an interval between the second surface 3012 and the fourth surface 3022.

[0042] In this way, the first surface 3011 and the third surface 3021 are specially treated and coated with an infiltration coating 3013, which has good oil-wetting properties and can promote the passage or attachment of oily substances such as aerosol-forming substrates. Relatively, the second surface 3012 and the fourth surface 3022 are coated with a non-infiltration coating 3023, which has strong oil-repellent properties and can prevent the passage of oily substances such as aerosol-forming substrates, thereby avoiding the aerosol-forming substrate from flowing to the first airway 310 and causing blockage and leakage.

[0043] In some embodiments, the wetting coating 3013 is a silica coating, a nanocomposite coating or an aqueous polyurethane coating, and the non-wetting coating 3023 is a Teflon coating, a fluorocarbon polymer coating or a silicone resin coating.

[0044] Among them, coating materials such as silica coatings, nanocomposite coatings or aqueous polyurethane coatings have good lipophilicity and can effectively promote the passage or adhesion of oily substances. For example, due to its micro-nano structure, the silica coating can provide a large surface area, which is beneficial to the adsorption and transmission of the aerosol generation matrix; the nanocomposite coating is enhanced by special nanoparticles to improve the hydrophobic and lipophilic properties of the coating; the aqueous polyurethane coating has good flexibility and adhesion while maintaining environmental friendliness, and is suitable for coating complex surfaces.

[0045] The Teflon coating, fluorocarbon polymer coating or silicone resin coating as the non-wetting coating 3023 can effectively repel the aerosol generation matrix, thereby preventing the passage of the aerosol generation matrix. For example, the Teflon coating (such as polytetrafluoroethylene) is widely used due to its low friction coefficient and extremely high chemical stability; the fluorocarbon polymer coating provides additional wear resistance and chemical resistance, further enhancing the oil-blocking effect; the silicone resin coating provides good thermal stability and mechanical strength while maintaining lipophobicity.

[0046] In addition, in other embodiments, other lipophilic or lipophobic materials can also be used for coating.

[0047] In some embodiments, the distance between the first surface 3011 and the third surface 3021 is greater than the distance between the second surface 3012 and the fourth surface 3022.

[0048] In this way, the first surface 3011 and the second surface 3012 can form a stepped surface, and the first surface 3011 is lower than the second surface 3012. Similarly, the third surface 3021 and the fourth surface 3022 can also form a stepped surface, and the third surface 3021 is lower than the fourth surface 3022. When the aerosol generation matrix drops at the connection between the first surface 3011 and the second surface 3012 and the connection between the third surface 3021 and the fourth surface 3022, due to the fact that the first surface 3011 is lower than the second surface 3012 and the third surface 3021 is lower than the fourth surface 3022, therefore, the aerosol generation matrix is not likely to flow to the second surface 3012 and the fourth surface 3022 and then leak into the first airway 310 from the atomizing device 10.

[0049] In some embodiments, the second airway 320 is annularly arranged around the outer periphery of the liquid-blocking ventilation valve 300 along its axis.

[0050] The annularly arranged second air passage 320 can more evenly distribute the flow field of the gas when it flows through the ventilation valve, which helps to reduce the air flow resistance and improve the gas circulation efficiency.

[0051] In some embodiments, the number of the first air passages 310 is plural, and the plural first air passages 310 are sequentially arranged at intervals around the axis of the liquid-blocking ventilation valve 300, and each first air passage 310 extends along the axis of the liquid-blocking ventilation valve 300.

[0052] By providing the plural first air passages 310, the number of gas circulation channels can be increased, thereby enhancing the gas exchange ability. Moreover, the uniform distribution of the plural air passages helps to evenly distribute the gas flow rate, and can avoid the phenomenon of excessive local pressure or uneven flow velocity that may occur in a single air passage. In addition, since there are plural first air passages 310, even if one or several air passages have reduced efficiency due to foreign object blockage or contamination, the other air passages can still continue to work, thus ensuring that the ventilation function of the atomization device 10 is not affected.

[0053] In some embodiments, the number of the second air passages 320 is plural, and the plural second air passages 320 are sequentially arranged at intervals around the outer periphery of the axis of the liquid-blocking ventilation valve 300.

[0054] By providing the plural second air passages 320, the path and area of gas circulation can be increased, the air permeability of the atomization device 10 can be improved, so that the air flow can pass through more smoothly and efficiently, and the barrier ability of the aerosol-forming substrate of the atomization device 10 can be improved, avoiding the leakage of the aerosol-forming substrate from the atomization device 10 through the second air passage 320 and the first air passage 310.

[0055] In some embodiments, the first air passage 310 is annularly arranged around the outer periphery of the axis of the liquid-blocking ventilation valve 300.

[0056] In some embodiments, a liquid storage cavity for storing the aerosol-forming substrate may be provided in the atomization device 10, and the atomization core in the atomization device 10 can heat the aerosol-forming substrate in the liquid storage cavity to form an aerosol, and the aerosol is discharged through the exhaust passage in the atomization device 10.

[0057] In addition, a ventilation passage that can communicate the liquid storage cavity with the outside is provided in the atomization device 10, and outside air can enter the liquid storage cavity through the ventilation passage to reduce the negative pressure generated by the consumption of the aerosol-forming substrate in the liquid storage cavity, so that the aerosol-forming substrate can flow smoothly in the liquid storage cavity and come into contact with the atomization core, thereby realizing the atomization of the aerosol-forming substrate.

[0058] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0059] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof.

[0060] The above are only the specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. An atomizing device, characterized in that: include: A housing, wherein the housing is provided with an air inlet passage, an air inlet and an air outlet, wherein the air inlet and the air outlet are both connected to the air inlet passage; an atomizer, the atomizer being arranged in the air inlet passage; as well as A liquid-blocking vent valve, wherein the liquid-blocking vent valve is arranged in the air inlet passage and is located between the atomizer and the air inlet, wherein the liquid-blocking vent valve is provided with a first air passage and a second air passage, wherein the first air passage is connected to the air inlet passage, and the second air passage comprises an oleophilic channel section and an oleophobic channel section, wherein the oleophilic channel section and the oleophobic channel section are arranged radially along the air inlet passage, wherein the oleophilic channel section is connected to the air inlet passage and the oleophobic channel section, and wherein the oleophobic channel section is connected to the first air passage.

2. The atomizing device according to claim 1, characterized in that: The liquid-blocking vent valve comprises a valve body and a cover body, wherein the cover body is detachably connected to the valve body, the first air passage is arranged in the valve body, and the second air passage is formed by a gap between the valve body and the cover body.

3. The atomizing device according to claim 2, characterized in that: The cover body is provided with a first surface and a second surface connected to each other on one side facing the valve body, and the valve body is provided with a third surface and a fourth surface connected to each other on one side facing the cover body, the first surface and the third surface are provided with a wetting coating, the second surface and the fourth surface are provided with a non-wetting coating, the first surface and the third surface are spaced to form the oleophilic channel section, and the second surface and the fourth surface are spaced to form the oleophobic channel section.

4. The atomizing device according to claim 3, characterized in that: The wetting coating is a silicon dioxide coating, a nanocomposite coating or a waterborne polyurethane coating, and the non-wetting coating is a Teflon coating, a fluorocarbon polymer coating or a silicone resin coating.

5. The atomizing device according to claim 4, characterized in that: A distance between the first surface and the third surface is greater than a distance between the second surface and the fourth surface.

6. The atomizing device according to claim 3, characterized in that: The valve body is provided with a first plug-in portion, and the cover body is provided with a second plug-in portion, and the first plug-in portion is plug-fitted with the second plug-in portion.

7. The atomizing device according to claim 2, characterized in that: The second air passage is arranged in a ring shape around the outer periphery of the axis of the liquid-blocking vent valve.

8. The atomizing device according to claim 7, characterized in that: There are multiple first air channels, and the multiple first air channels are arranged in sequence and spaced apart around the axial direction of the liquid-blocking vent valve, and each first air channel extends along the axial direction of the liquid-blocking vent valve.

9. The atomizing device according to claim 2, characterized in that: There are a plurality of second air passages, and the plurality of second air passages are sequentially arranged at intervals around the outer circumference of the axis of the liquid-blocking vent valve.

10. The atomizing device according to claim 9, characterized in that: The first air passage is arranged in a ring shape around the outer periphery of the axis of the liquid-blocking vent valve.

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