Electronic atomization device

Abstract

The present invention relates to an electronic atomization device, which comprises: an outer shell, an air inlet and an air outlet are respectively provided at both ends of the outer shell; an inner shell, which is arranged in the outer shell, and the outer wall of the inner shell is spaced apart from the outer shell to form an oil tank surrounding the inner shell, and a accommodating cavity is provided in the inner shell, and a first oil inlet hole communicating with the accommodating cavity is provided on the cavity wall on the side of the accommodating cavity relatively close to the air inlet; an atomization component and a power supply component, wherein the atomization component and the power supply component are both arranged in the accommodating cavity and the atomization component is closer to the air inlet relative to the power supply component, and the atomization component is communicated with the oil tank through the first oil inlet hole. Compared with the electronic atomization device in the prior art, the above-mentioned electronic atomization device has a simpler structure and is easier to manufacture and assemble.

Description

Technical Field

[0001] The present invention relates to the field of atomization technology, and in particular to an electronic atomization device. Background Art

[0002] An electronic atomizer converts an atomizable medium into an edible aerosol. Existing electronic atomizers primarily consist of a liquid reservoir, an atomizer assembly, and a power supply. The liquid reservoir stores the atomizable medium, the atomizer assembly heats and atomizes the atomizer to form an edible aerosol, and the power supply provides energy to the atomizer assembly. Existing electronic atomizers are complex in structure, making them difficult to manufacture and assemble. Summary of the Invention

[0003] Based on this, it is necessary to provide an electronic atomization device to solve the problem of how to simplify the structure of the electronic atomization device.

[0004] An electronic atomization device, comprising:

[0005] An outer shell, wherein an air inlet and an air outlet are respectively provided at two ends of the outer shell;

[0006] an inner shell disposed within the outer shell, wherein an outer wall of the inner shell is spaced apart from the outer shell to form an oil tank surrounding the inner shell, a receiving cavity is defined within the inner shell, and a first oil inlet hole communicating with the oil tank is defined on a cavity wall on a side of the receiving cavity closer to the air inlet;

[0007] The atomizer assembly and the power supply assembly are both arranged in the accommodating cavity and the atomizer assembly is closer to the air inlet than the power supply assembly. The atomizer assembly is connected to the oil tank through the first oil inlet hole.

[0008] In one embodiment, a accommodating cavity is provided on the outer shell, and an assembly portion extending along the circumference of the outer shell is protruded on the cavity wall of the accommodating cavity near the air outlet. The inner shell is sleeved on the assembly portion to divide the accommodating cavity into the relatively isolated oil tank and the accommodating cavity.

[0009] In one embodiment, the electronic atomization device further includes a base, which is sleeved on the air inlet and sealed with the oil tank.

[0010] In one embodiment, the base is provided with a first mating groove and a second mating groove arranged around the first mating groove, the first mating groove and the second mating groove both extend along the circumference of the outer shell, the outer shell is inserted into the second mating groove and contacts the groove wall of the second mating groove, and the inner shell is inserted into the first mating groove and contacts the groove wall of the first mating groove.

[0011] In one embodiment, a groove wall of the first matching groove is provided with a first abutting portion protruding into the first matching groove and abutting against an outer wall of the inner shell, and the first abutting portion is arranged around the inner shell; and / or

[0012] A groove wall of the second matching groove is provided with a second abutting portion protruding into the second matching groove and abutting against the outer wall of the shell, and the second abutting portion is arranged around the shell.

[0013] In one embodiment, the base includes an outer sleeve, a middle sleeve and an inner sleeve, the outer sleeve is arranged on the middle sleeve and at least part of its structure is spaced apart from the middle sleeve to form the second matching groove, the middle sleeve is arranged on the inner sleeve and at least part of its structure is spaced apart from the inner sleeve to form the first matching groove.

[0014] In one embodiment, the outer sleeve includes a fixing portion and a retaining portion connected to a peripheral wall of the fixing portion and extending radially inward, and the retaining portion can simultaneously abut against an end of the middle sleeve away from the outer sleeve and an end of the inner sleeve away from the outer sleeve.

[0015] In one embodiment, the outer shell and the inner shell are integrated.

[0016] In one embodiment, the outer shell and the inner shell are both regular circular tubular structures or regular prismatic tubular structures, or one of them is a regular circular tubular structure and the other is a regular prismatic circular tubular structure; and / or,

[0017] The outer shell and the inner shell are coaxially arranged; and / or,

[0018] The difference in radial dimensions between the outer shell and the inner shell is constant; and / or

[0019] Taking the direction from the air inlet to the air outlet as a reference direction, the radial size of the housing gradually increases, or the radial size of the housing gradually decreases.

[0020] In one embodiment, at least a portion of the outer shell is a transparent area, the transparent area extends in a direction from the air inlet to the air outlet, and a projection of the transparent area radially onto the inner shell at least partially covers the first oil inlet hole.

[0021] In the above-mentioned electronic atomization device, the first oil inlet is provided on the side wall of the accommodating chamber relatively close to the air inlet, and the atomization assembly is located on the side wall of the accommodating chamber relatively close to the air inlet. It can be understood that the positions of the atomization assembly and the oil inlet correspond to each other, and both are located at one end of the accommodating chamber close to the air inlet. In other words, the atomization assembly and the first oil inlet are both located at one end of the accommodating chamber close to the air outlet. It should be understood that the air outlet is the outlet for the aerosol atomized by the atomization assembly to flow out of the electronic atomization device, that is, when the user is inhaling, the air outlet is at the upper end relative to the air inlet, and the air inlet is at the opposite end.

[0022] This arrangement, on the one hand, allows the atomized medium in the oil reservoir to automatically flow out of the first oil inlet and into the atomizer assembly due to gravity during inhalation, eliminating the need for guides such as absorbent cotton or oil-guiding cotton to facilitate the flow of the atomized medium into the atomizer assembly. This simplifies the structure of the electronic atomizer device. Furthermore, placing the atomizer assembly near the air inlet in the chamber also increases the aerosol flow path, reducing the aerosol temperature during flow and preventing burns to the user.

[0023] Furthermore, in the aforementioned electronic atomizer device, both the power supply assembly and the atomizer assembly are located within the chamber, with the atomizer assembly closer to the air inlet than the power supply assembly. In other words, the power supply assembly is located within the space between the atomizer assembly and the air outlet. This arrangement can significantly increase the aerosol flow path while avoiding wasted space. By placing the power supply assembly within the space between the atomizer assembly and the air outlet, the overall structure of the electronic atomizer device can be made more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an axial schematic diagram of an electronic atomization device provided in one embodiment of the present application;

[0025] Figure 2 For the Figure 1 Cross-sectional view along line AA;

[0026] Figure 3 for Figure 2 A cross-sectional view of the inner shell, bracket assembly, and main unit of the electronic atomization device shown;

[0027] Figure 4 for Figure 3 A cross-sectional view of the inner shell and bracket assembly in the electronic atomization device shown;

[0028] Figure 5 For the Figure 1 A cross-sectional view in another direction;

[0029] Figure 6 for Figure 2 A cross-sectional view of the housing of the electronic atomization device shown;

[0030] Figure 7 for Figure 2 A cross-sectional view of the outer shell and inner shell of the electronic atomization device shown;

[0031] Figure 8 for Figure 2 A cross-sectional view of the outer shell, inner shell, and base of the electronic atomization device shown;

[0032] Figure 9 for Figure 4 An axial schematic diagram of the first bracket in the electronic atomization device shown;

[0033] Figure 10 for Figure 4 An axial schematic diagram of the second bracket in the electronic atomization device shown;

[0034] Figure 11 for Figure 3 A schematic diagram of the axial side of the power supply sleeve in the electronic atomization device shown;

[0035] Figure 12 for Figure 8 A partial enlarged view of point B in the middle;

[0036] Figure 13 for Figure 12 A schematic axial view of the base of the electronic atomization device shown;

[0037] Figure 14 for Figure 13 A schematic diagram of the axial side of the middle sleeve in the base shown;

[0038] Figure 15 for Figure 13 A schematic axial view of the outer jacket in the illustrated base;

[0039] Figure 16 for Figure 13 A schematic diagram of the inner sleeve in the base shown in the figure;

[0040] Figure 17 for Figure 11 A schematic diagram of the shaft side of the power supply sleeve from another perspective;

[0041] Figure 18 Schematic diagram of the steps of an assembly method according to an embodiment of the present invention.

[0042] Figure numerals: 10, electronic atomization device; 100, inner shell; 110, accommodating chamber; 120, first oil inlet; 200, bracket assembly; 210, first bracket; 211, first section; 212, second section; 213, detection chamber; 213a, airflow sensor; 214, communication port; 220, second bracket; 221, second oil inlet; 222, matching chamber; 222a, bottom wall; 222b, peripheral side wall; 300, host; 310, power supply assembly; 311, power supply; 312, power supply sleeve; 31 2a, first air channel; 312b, second air channel; 312c, fixing hole; 320, atomizer assembly; 400, outer shell; 410, air inlet; 420, air outlet; 421, heat absorber; 430, accommodating chamber; 440, assembly part; 450, nozzle; 500, base; 510, outer sleeve; 511, fixing part; 512, retaining part; 520, middle sleeve; 521, second abutting part; 530, inner sleeve; 531, air delivery port; 600, oil tank; 700, first matching groove; 800, second matching groove. DETAILED DESCRIPTION

[0043] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] In the description of the present invention, 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 to 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 invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0045] 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 at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0049] See also Figures 1 to 4 An electronic atomization device 10 provided by an embodiment of the present invention includes an inner shell 100, a bracket assembly 200, a main unit 300 and an outer shell 400. A accommodating cavity 110 is provided on the inner shell 100, and the bracket assembly 200 and the main unit 300 are arranged in the accommodating cavity 110. The bracket assembly 200 includes a first bracket 210 and a second bracket 220, both of which are tightly abutted against the cavity wall of the accommodating cavity 110. One end of the main unit 300 abuts against the first bracket 210; the other end of the main unit 300 abuts against the second bracket 220. The outer shell 400 is plugged into and matched with the inner shell 100, and an oil tank 600 connected to the main unit 300 is formed in the outer shell 400. The oil tank 600 is used to store an atomizable medium. Specifically, the atomizable medium can be atomized by the main unit 300 to form an aerosol that can be inhaled by the user.

[0050] The electronic atomization device 10 is combined with Figure 3 and Figure 4One end of the main unit 300 abuts the first bracket 210, and the other end abuts the second bracket 220, that is, the main unit 300 is sandwiched between the first bracket 210 and the second bracket 220. Furthermore, both the first bracket 210 and the second bracket 220 are in close contact with the walls of the accommodating cavity 110. This means that the friction between the first bracket 210 and the second bracket 220 and the walls of the accommodating cavity 110 allows both the first bracket 210 and the second bracket 220 to remain relatively fixed to the inner shell 100. Thus, the fixing effect of the first bracket 210 and the second bracket 220 also allows the main unit 300 to remain relatively fixed to the inner shell 100. Furthermore, the inner shell 100, the first bracket 210, the second bracket 220, and the main unit 300 form a stable, compact whole.

[0051] Furthermore, by providing the outer shell 400 and the inner shell 100 for plugging and matching, the oil tank 600 can be easily connected to the main body 300 to provide the atomizable medium to the main body 300.

[0052] It is understandable that, since the first bracket 210 and the second bracket 220 are connected to the wall of the accommodating chamber 110 in a tightly abutting manner, the first bracket 210 and the second bracket 220 can be moved to the desired position simply by driving the first bracket 210 and the second bracket 220 to slide along the wall of the accommodating chamber 110. Furthermore, since the main unit 300 is relatively fixed to the inner shell 100 via the first bracket 210 and the second bracket 220, the inner shell 100 and the structure therein can be assembled by sequentially inserting the first bracket 210, the main unit 300, and the second bracket 220 into the accommodating chamber 110. Furthermore, since the outer shell 400 and the inner shell 100 are plug-fitted, the assembly of the electronic atomization device 10 can be completed by simply plugging the assembled inner shell 100 into the outer shell 400 so that the oil tank 600 can be connected to the main unit 300. With this arrangement, the assembly method is simple and the assembled electronic atomization device 10 is compact.

[0053] In one embodiment, the first bracket 210 and / or the second bracket 220 include an elastomer that fits tightly with the wall of the accommodating cavity 110. The above-mentioned elastomer can be, for example, a rubber-like material such as silicone with a certain degree of adaptability, or a polymer material with a certain degree of adaptability. In this way, the first bracket 210 and the second bracket 220 can maintain a good tight fit with the wall of the accommodating cavity 110. It can be understood that the ability of the first bracket 210 and the second bracket 220 to maintain a tight fit with the wall of the accommodating cavity 110 can not only be used to keep the position of the host 300 relatively fixed with the inner shell 100, but also to keep the space within the accommodating cavity 110 relatively sealed.

[0054] In one embodiment, the first bracket 210 and / or the second bracket 220 further include a support body (not shown in the figure, the same below). The elastomer is wrapped around the outside of the support body, and the support body is provided inside the elastomer to support the elastomer, so that the first bracket 210 and / or the second bracket 220 can maintain the desired shape. In other words, the support body can enhance the strength and rigidity of the structure of the first bracket 210 and / or the second bracket 220. Of course, the first bracket 210 and / or the second bracket 220 are not limited to being provided with a support body, and the entirety can also be formed by integrally molding the elastomer.

[0055] See also Figure 5 and Figure 6 In one embodiment, an air inlet 410 and an air outlet 420 are respectively provided at both ends of the outer shell 400. The air inlet 410 is used to introduce external air into the electronic atomization device 10; the air outlet 420 is used to deliver the aerosol atomized by the host 300 to the smoker. The inner shell 100 is arranged in the outer shell 400, and the outer wall of the inner shell 100 is spaced apart from the outer shell 400 to enclose an oil tank 600 surrounding the inner shell 100. A first oil inlet hole 120 connected to the oil tank 600 is provided on the wall of the accommodating cavity 110 on one side relatively close to the air inlet 410. The host 300 includes an atomization component 320 and a power supply component 310 connected to the atomization component 320 for providing energy to the atomization component 320. The atomization component 320 is capable of atomizing the atomizable medium into an aerosol for inhalation by the smoker. The atomizer assembly 320 and the power supply assembly 310 are both disposed in the accommodating chamber 110 and are closer to the air inlet 410 than the power supply assembly 310. The atomizer assembly 320 is in communication with the oil tank 600 through the first oil inlet hole 120.

[0056] In the above-mentioned electronic atomization device 10, Figure 2 、 Figure 4 and Figure 5 The first oil inlet hole 120 is provided on a side wall of the accommodating chamber 110 relatively close to the air inlet 410, and the atomizer assembly 320 is located on a side wall of the accommodating chamber 110 relatively close to the air inlet 410. It is understandable that the positions of the atomizer assembly 320 and the first oil inlet hole 120 correspond to each other, and both are located at one end of the accommodating chamber 110 close to the air inlet 410. In other words, the atomizer assembly 320 and the first oil inlet hole 120 are both located at one end of the accommodating chamber 110 close to the air outlet 420. It should be understood that the air outlet 420 is the outlet through which the aerosol atomized by the atomizer assembly 320 flows out of the electronic atomizer device 10, that is, when the user is inhaling, the air outlet 420 is at the upper end relative to the air inlet 410, and the air inlet 410 is at the opposite end.

[0057] With this arrangement, when the user inhales, the aerosolizable medium in the oil reservoir 600 can automatically flow out of the oil reservoir 600 through the first oil inlet 120 and into the atomizer assembly 320 based on gravity, eliminating the need for guiding devices such as oil-absorbing cotton or oil-guiding cotton to allow the aerosolizable medium to enter the atomizer assembly 320. This can relatively simplify the structure of the electronic atomizer device 10. Furthermore, placing the atomizer assembly 320 near the air inlet 410 within the accommodating chamber 110 can also relatively increase the flow path of the aerosol, reducing the temperature of the aerosol during flow and preventing burns to the user.

[0058] Furthermore, in the electronic atomization device 10, both the power supply assembly 310 and the atomization assembly 320 are located within the accommodating chamber 110, with the atomization assembly 320 being closer to the air inlet 410 than the power supply assembly 310. That is, the power supply assembly 310 is located within the space between the atomization assembly 320 and the air outlet 420. This arrangement can avoid wasting space while relatively increasing the aerosol flow path. By locating the power supply assembly 310 within the space between the atomization assembly 320 and the air outlet 420, the overall structure of the electronic atomization device 10 can be made more compact.

[0059] Furthermore, since the oil tank 600 is formed between the inner shell 100 and the outer shell 400, that is, the inner shell 100 and the outer shell 400 cooperate with each other to store the atomizable medium. It can be understood that the two sides of the shell wall of the outer shell 400 are the oil tank 600 and the external environment respectively, and the atomizable medium and the external environment are separated by the outer shell 400. In addition, it can be understood that the outer shell 400 is the main body of the electronic atomization device 10. When using the electronic atomization device 10, the smoker mainly grabs the outer shell 400 to grab the electronic atomization device 10. At this time, the temperature of the smoker's palm can be transmitted to the atomizable medium in the oil tank 600 through the outer shell 400, which can preheat the atomizable medium to a certain extent, reduce the viscosity of the atomizable medium, and facilitate the atomization component 320 to atomize the atomizable medium.

[0060] In addition, since the outer shell 400 and the inner shell 100 not only serve as the supporting structure of the electronic atomization device 10, but also serve as a component of the oil tank 600, there is no need to add a cavity structure to enclose the oil tank 600. This can simplify the structure of the electronic atomization device 10 and make the structure of the electronic atomization device 10 simpler and more compact. It is understandable that directly opening a cavity in the inner shell 100, the outer shell 400 or other structures as the oil tank 600 will cause the structure with the cavity to form an isolated part in the entire electronic atomization device 10, which is not conducive to forming an effective whole with other structures. In each embodiment, the oil tank 600 is formed by enclosing the inner shell 100 and the outer shell 400, which can effectively utilize the space in the inner shell 100 to prevent the host 300, making the overall structure of the electronic atomization device 10 more compact. Moreover, compared with opening a cavity in a structure, setting a gap between the outer shell 400 and the inner shell 100 is more convenient for processing and manufacturing.

[0061] Furthermore, the inner shell 100 and the outer shell 400 form the main body of the electronic atomization device 10. By enclosing the inner shell 100 and the outer shell 400 to form the oil reservoir 600, the space between the inner shell 100 and the outer shell 400 can be fully utilized. For example, simply increasing the structural dimensions of the inner shell 100 and the outer shell 400 can also significantly increase the capacity of the oil reservoir 600. For an electronic atomization device 10 of the same structural dimensions, the oil reservoir 600 can provide a larger storage space and a larger storage capacity.

[0062] In one embodiment, at least a portion of the housing 400 is transparent. The transparent area extends from the air inlet 410 toward the air outlet 420. This allows the user to observe the amount of aerosolizable medium stored in the oil reservoir 600 through the transparent area, allowing them to add aerosolizable medium to the oil reservoir 600 in a timely manner.

[0063] In one embodiment, the projection of the transparent area onto the inner shell 100 along the radial direction of the inner shell 100 at least partially covers the first oil inlet hole 120. It is understandable that when the liquid level in the oil tank 600 is lower than the first oil inlet hole 120, the storage amount of the atomizable medium is too small to enter or is difficult to enter the atomizing assembly 320. At this time, it is difficult for the electronic atomizing device 10 to generate aerosol, that is, the storage amount of the atomizable medium is exhausted. In this embodiment, the amount of the atomizable medium and the position of the first oil inlet hole 120 can be observed simultaneously through the transparent area. By comparing the liquid level of the atomizable medium with the position of the first oil inlet hole 120, the approximate situation of the atomizable medium inventory can be known, so that the smoker can add the atomizable medium in time.

[0064] In one embodiment, the housing 400 may be provided with a scale. The scale is provided around the transparent area. The amount of the atomizable medium can be intuitively known through the scale.

[0065] In one embodiment, the entire housing 400 is a transparent structure. Alternatively, a portion of the housing 400 that is used to enclose the oil tank 600 is a transparent structure.

[0066] In some embodiments, the inner housing 100 may not be disposed within the outer housing 400. The outer wall of the inner housing 100 plugs into and mates with the outer wall of the outer housing 400. In this case, the cavity within the outer housing 400 serves as the oil reservoir 600. A passage may be provided at the connection between the inner housing 100 and the outer housing 400 to connect the oil reservoir 600 with the atomizer assembly 320. Of course, other forms of plug-in connection between the inner housing 100 and the outer housing 400 are also possible, and will not be further described here.

[0067] See also Figure 6 In accordance with 7, in one embodiment, an assembly portion 440 extending circumferentially is formed at one end of the outer shell 400 near the air outlet 420, and the inner shell 100 is inserted into the assembly portion 440. In this way, the outer shell 400 and the inner shell 100 can be plugged into each other, making assembly simple. Moreover, since the assembly portion 440 extends circumferentially, the inner shell 100 can be kept relatively fixed to the outer shell 400 in the circumferential direction through the assembly portion 440. Figure 6 As shown by the arrow K, the end of the housing 400 close to the air outlet 420 refers to the end of the housing 400 that is closer to the air outlet 420 between the air inlet 410 and the air outlet 420 .

[0068] For details, please refer to Figure 6 and Figure 7 , a accommodating chamber 430 is provided on the outer shell 400. An assembly portion 440 extending circumferentially along the outer shell 400 is protruded on the wall of the accommodating chamber 430 on the side close to the air outlet 420. The inner shell 100 is sleeved on the assembly portion 440, dividing the accommodating chamber 430 into a relatively isolated oil tank 600 and an accommodating chamber 110. Such an arrangement enables the spaces within the outer shell 400 to realize their respective functions relatively independently. That is, the sealing of the oil tank 600 is ensured to prevent leakage of the atomizable medium. At the same time, it also prevents the power supply component 310 in the accommodating chamber 110 from being contaminated by the atomizable medium. At the same time, ensuring the relative isolation of the accommodating chamber 110 can also prevent the aerosol generated by the atomizing component 320 from leaking and being unable to flow out from the air outlet 420.

[0069] It should be understood that the description that the inner shell 100 divides the accommodating cavity 430 into the oil tank 600 and the accommodating cavity 110 does not contradict the description that the accommodating cavity 110 is opened on the inner shell 100. Figure 7When the inner housing 100 is inserted into the assembly portion 440, the accommodating chamber 430 can be divided into the accommodating chamber 110 located inside the inner housing 100 and the oil reservoir 600 located outside the inner housing 100. In other words, the accommodating chamber 110 can be understood as a part of the accommodating chamber 430. In contrast, with respect to the inner housing 100, it is clear that the accommodating chamber 110 is provided on the inner housing 100. Therefore, the above descriptions are not contradictory.

[0070] In order to prevent leakage of the atomizable medium in the oil tank 600, a sealing ring (not shown in the figure, the same below) can be provided around the assembly part 440 at the connection between the inner shell 100 and the assembly part 440 to further ensure the relative sealing of the oil tank 600.

[0071] See also Figure 8 In one embodiment, the electronic atomization device 10 further includes a base 500. The base 500 is sleeved on the air inlet 410 to keep the oil tank 600 relatively sealed from the outside world. In combination with the above, one end of the inner shell 100 is plugged into the assembly part 440 to prevent the atomizable medium from communicating with the outside world through the air outlet 420. By being sleeved on the air inlet 410, the base 500 can further prevent the atomizable medium from communicating with the outside world through the air inlet 410. In other words. The cooperation between the assembly part 440 and the base 500 can keep the oil tank 600 relatively sealed as a whole.

[0072] Please refer again Figure 7 In one embodiment, the outer shell 400 and the inner shell 100 are both regular circular tubular structures or regular prismatic tubular structures, or one of them is a regular circular tubular structure and the other is a regular prismatic circular tubular structure. With such a configuration, on the one hand, the outer shell 400 and / or the inner shell 100 are regular tubular structures, which are simpler in structure and easier to process and manufacture. On the other hand, configuring the outer shell 400 and / or the inner shell 100 as regular tubular structures can facilitate the insertion of the inner shell 100 into the outer shell 400, and also facilitates the insertion of the host 300 into the accommodating cavity 110. Specifically, the first bracket 210, the host 300 and the second bracket 220 can be directly inserted into the accommodating cavity 110 along the cavity wall of the accommodating cavity 110, and the cavity wall of the accommodating cavity 110 can guide the movement of the three, ensuring that the three can move to the expected position. In this way, the assembly of the internal structure of the inner shell 100 can be completed. The inner shell 100 is assembled similarly. The assembly is completed by entering the accommodating cavity 430 from one end of the air inlet 410 of the outer shell 400 and moving the inner shell 100 to engage with the assembly portion 440.

[0073] Specifically, see Figure 4In one embodiment, the inner diameters of all locations within the accommodating cavity 110 are equal. This allows the first bracket 210 and the second bracket 220 to be inserted into the accommodating cavity 110 from either end. In one embodiment, the outer diameters of the first bracket 210 and the second bracket 220 are greater than or equal to the inner diameter of the accommodating cavity 110. This allows the first bracket 210 and the second bracket 220 to maintain close contact with the wall of the accommodating cavity 110.

[0074] It can be understood that the axial, radial and circumferential directions described in each embodiment are the axial, radial and circumferential directions of the tubular outer shell 400 and the inner shell 100 .

[0075] Please continue reading Figure 7 In one embodiment, the outer shell 400 and the inner shell 100 are coaxially arranged. The difference in radial dimensions between the outer shell 400 and the inner shell 100 is constant. In other words, the thickness of the oil tank 600 is constant in any cross-section perpendicular to the axis of the outer shell 400. It is understood that the thickness of the oil tank 600 is the difference in radial dimensions between the outer shell 400 and the inner shell 100.

[0076] Combine Figure 7 In one embodiment, the outer shell 400 and the inner shell 100 are coaxially arranged. The difference in radial dimensions between the outer shell 400 and the inner shell 100 is constant. Taking the direction from the air inlet 410 to the air outlet 420 as the reference direction, the radial dimension of the outer shell 400 remains unchanged. In other words, in this embodiment, the oil tank 600 as a cavity extends in a straight line in the shape of a circular tube or a prismatic tube, and the radial dimensions of any point on the inner shell 100 are also equal. For the reference directions described in each embodiment, see Figure 7 Middle arrow M.

[0077] In one embodiment, the outer shell 400 and the inner shell 100 are coaxially arranged. The difference in radial dimensions between the outer shell 400 and the inner shell 100 is constant. With the direction from the air inlet 410 to the air outlet 420 as the reference direction, the radial dimensions of the outer shell 400 and the inner shell 100 gradually increase. In other words, in this embodiment, the oil tank 600, which serves as a cavity, gradually expands along the reference direction in the shape of a hollow truncated cone or hollow prism.

[0078] In other embodiments, the outer shell 400 and the inner shell 100 are coaxially arranged. The difference in radial dimensions between the outer shell 400 and the inner shell 100 is constant. With the direction from the air inlet 410 to the air outlet 420 as the reference direction, the radial dimensions of the outer shell 400 and the inner shell 100 gradually decrease. In other words, in this embodiment, the oil tank 600, which serves as a cavity along the reference direction, extends in a hollow truncated cone or hollow prism shape.

[0079] Of course, the radial dimension relationship between the outer shell 400 and the inner shell 100 and whether they are coaxially arranged can be arbitrarily combined and arranged according to actual needs, similar to the above embodiments, and will not be repeated here.

[0080] See also Figure 9 Combined with Figure 3 In one embodiment, the power supply assembly 310 includes a power supply sleeve 312 and a power supply 311 disposed in the power supply sleeve 312. One end of the power supply sleeve 312 is provided with a fixing hole 312c that is plugged into the first bracket 210. During assembly, the first bracket 210 can be inserted into the fixing hole 312c to determine the relative position of the first bracket 210 and the power supply sleeve 312 in advance. This is to avoid the situation where the position of the power supply assembly 310 is uncontrollable when one of the first bracket 210 and the second bracket 220 has not yet been installed in the accommodating cavity 110 during assembly, thereby avoiding increasing the difficulty of assembling the electronic atomization device 10.

[0081] See also Figure 9 In one embodiment, the first bracket 210 includes a first section 211 and a second section 212 connected to the first section 211 and having a smaller radial dimension than the first section 211. The peripheral wall of the first section 211 tightly abuts against the wall of the accommodating cavity 110; the peripheral wall of the second section 212 tightly abuts against the wall of the fixing hole 312c, thereby maintaining the relative position of the power supply assembly 310 and the first bracket 210.

[0082] See also Figure 3 、 Figure 4 and Figure 10 In one embodiment, the atomizer assembly 320 is disposed within the second bracket 220 and abuts against the second bracket 220. Combined with the aforementioned close abutment between the second bracket 220 and the wall of the accommodating chamber 110, the second bracket 220 also provides a sealing function. Therefore, placing the atomizer assembly 320 within the second bracket 220 can prevent the oil reservoir 600 from flowing into the atomizer assembly 320 and prevent the aerosol generated by the atomizer assembly 320 from leaking. In this embodiment, the power supply shaft sleeve 312 abuts against the atomizer assembly 320 and / or the second bracket 220 to further ensure that the main unit 300 as a whole remains relatively fixed to the inner housing 100.

[0083] Further, see Figure 10 Combined with Figure 7 In one embodiment, the first oil inlet 120 is provided on one end of the side wall of the inner shell 100 near the second bracket 220. A second oil inlet 221 is provided on the second bracket 220. The oil reservoir 600, the first oil inlet 120, the second oil inlet 221, and the atomizing assembly 320 are in communication with one another. In other words, the oil reservoir 600 is in communication with the atomizing assembly 320 through the inner shell 100 and the second bracket 220. Since the second bracket 220 and the cavity wall of the accommodating cavity 110 have the aforementioned sealing properties, placing the atomizing assembly 320 within the second bracket 220 is advantageous in improving the sealing properties during the atomizable medium delivery process.

[0084] Further, see Figure 10 In one embodiment, when the atomizer assembly 320 is arranged in the second bracket 220, the second bracket 220 is provided with a matching cavity 222. The matching cavity 222 includes a bottom wall 222a that abuts the atomizer assembly 320 and a peripheral side wall 222b connected to the periphery of the bottom wall 222a and closely abutting the atomizer assembly 320. Since the peripheral side wall 222b is closely abutting the atomizer assembly 320, to a certain extent, the atomizer assembly 320 and the second bracket 220 can be kept relatively fixed only by the peripheral side wall 222b. In this way, the atomizer assembly 320 can be installed in the matching cavity 222 during assembly, so that the position of the atomizer assembly 320 and the position of the second bracket 220 remain relatively fixed, which facilitates the assembly of the atomizer assembly 320. In addition, the atomizer assembly 320 includes multiple components such as an atomizer core, a heating element, and sealing cotton. The accommodation and restraining effect of the matching parts can also make the relative positions of the various components included in the atomizer assembly 320 more stable, thereby facilitating the assembly of the atomizer assembly 320 itself.

[0085] In some embodiments, one end of the atomizer assembly 320 abuts against the second bracket 220, and the other end of the atomizer assembly 320 abuts against the power supply sleeve 312. That is, the atomizer assembly 320 is disposed between the power supply assembly 310 and the second bracket 220, and the position of the atomizer assembly 320 and the inner housing 100 are maintained relatively fixed by the power supply assembly 310 and the second bracket 220.

[0086] See also Figure 11 In one embodiment, the power supply sleeve 312 is in contact with the inner wall of the inner shell 100. A first air channel 312a extending axially along the inner shell 100 is defined on either the outer wall of the power supply sleeve 312 or the inner wall of the inner shell 100. One end of the first air channel 312a is connected to the atomizer assembly 320, and the other end is connected to the air outlet 420. The first air channel 312a is used to transport the aerosol generated by the atomizer assembly 320, and the first air channel 312a delivers the aerosol to the user through the air outlet 420.

[0087] Please continue reading Figure 11 In one embodiment, the first air channel 312a can be opened on the outer wall of the power supply sleeve 312. Since the power supply sleeve 312 is in contact with the inner wall of the inner shell 100, the inner wall of the inner shell 100 and the power supply sleeve 312 can form a relatively sealed first air channel 312a to prevent aerosol leakage.

[0088] In one embodiment, the first air channel 312a can be opened on the inner wall of the inner shell 100. Since the power supply sleeve 312 fits the inner wall of the inner shell 100, the power supply sleeve 312 can form a relatively sealed first air channel 312a with the inner wall of the inner shell 100 to prevent aerosol leakage.

[0089] The inner housing 100 and the power supply sleeve 312 enclose the first air passage 312a, fully utilizing the space between the inner housing 100 and the power supply sleeve 312, making the electronic atomization device 10 simpler and more compact. The inner housing 100 and the power supply sleeve 312 enclose the first air passage 312a to achieve a similar effect as the inner housing 100 and the outer housing 400 enclose the oil reservoir 600. Please refer to the above description for details and will not be repeated here.

[0090] Please refer again Figure 9 In one embodiment, a communication hole 214 is formed on the first bracket 210. The first air channel 312a is connected to the air outlet 420 through the communication hole. In this way, the first air channel 312a can communicate with the air outlet 420 while ensuring that the first bracket 210 and the cavity wall of the accommodating cavity 110 can be tightly matched.

[0091] See also Figure 12 and Figure 13 In one embodiment, the base 500 is provided with a first mating groove 700 and a second mating groove 800 disposed around the first mating groove 700. Both the first mating groove 700 and the second mating groove 800 extend circumferentially of the outer shell 400. The outer shell 400 is inserted into the second mating groove 800 and contacts the groove wall of the second mating groove 800. The inner shell 100 is inserted into the first mating groove 700 and contacts the groove wall of the first mating groove 700. The first mating groove 700 extends circumferentially of the outer shell 400. The mating of the first mating groove 700 and the assembly portion 440 allows the inner shell 100 to have a fixed position in the circumferential direction, ensuring that the relative positions of the inner shell 100 and the outer shell 400 are fixed in the circumferential direction. In addition, the outer shell 400 contacts the groove wall of the second mating groove 800, and friction exists between the two, thereby preventing relative sliding between the two. The inner housing 100 contacts the wall of the first mating groove 700, creating friction between the two. Furthermore, both the first mating groove 700 and the second mating groove 800 are formed on the base 500. This prevents relative axial movement between the inner housing 100 and the outer housing 400 via the base 500. In other words, the mating of the base 500 and the assembly portion 440 maintains relative fixation between the inner housing 100 and the outer housing 400.

[0092] In one embodiment, a first abutting portion protrudes from the wall of the first mating groove 700 and abuts against the outer wall of the inner shell 100. The first abutting portion surrounds the inner shell 100. The first abutting portion surrounding the inner shell 100 can, on the one hand, enhance the sealing performance of the contact connection between the inner shell 100 and the base 500, thereby preventing leakage of the atomizable medium; and on the other hand, increase the friction between the inner shell 100 and the base 500, thereby ensuring that the relative position of the inner shell 100 and the outer shell 400 is fixed.

[0093] See also Figure 14In one embodiment, the second mating groove 800 has a second abutting portion 521 protruding into the second mating groove 800 and abutting against the outer wall of the outer shell 400. The second abutting portion 521 is disposed around the outer shell 400. Similarly, leakage of the atomizable medium can be prevented and the relative positions of the inner shell 100 and the outer shell 400 can be fixed.

[0094] See also Figures 13 to 16 In one embodiment, the base 500 includes an outer sleeve 510, a middle sleeve 520 and an inner sleeve 530. The outer sleeve 510 is sleeved on the middle sleeve 520 and at least part of its structure is spaced apart from the middle sleeve 520 to form a second matching groove 800. The middle sleeve 520 is sleeved on the inner sleeve 530 and at least part of its structure is spaced apart from the inner sleeve 530 to form a first matching groove 700. In contrast to making the base 500 an integrated whole, making the base 500 by layering the inner sleeve 530, the middle sleeve 520 and the outer sleeve 510 facilitates the processing and manufacturing of the base 500. Combining Figure 14 and Figure 15 Taking the second abutment 521 as an example, it is obviously more difficult to process the second abutment 521 protruding toward the inside of the second matching groove 800 in the relatively closed second matching groove 800 than to process the second abutment 521 protruding outward on the outside of the middle sleeve 520.

[0095] In one embodiment, the outer sleeve 510 includes a fixing portion 511 and a retaining portion 512 connected to the peripheral wall of the fixing portion 511 and extending radially inward. The retaining portion 512 can simultaneously abut the end of the middle sleeve 520 away from the outer shell 400 and the end of the inner sleeve 530 away from the outer shell 400. The retaining portion 512 on the outer shell 400 maintains the middle sleeve 520 and the inner sleeve 530 in contact with the inner shell 100 and the outer shell 400. Furthermore, the retaining portion 512 supports the middle sleeve 520 and the inner sleeve 530, allowing them to be placed on the retaining portion 512 to complete assembly of the base 500. In other words, the support provided by the retaining portion 512 ensures that the outer sleeve 510, the middle sleeve 520, and the inner sleeve 530 remain relatively stable during assembly of the base 500, facilitating assembly.

[0096] In other embodiments, the outer shell 400 and the inner shell 100 may be integrated. In this case, the base 500 is sleeved on one end of the air inlet 410 and abuts against the main unit 300 and / or the first bracket 210 .

[0097] Please refer again Figure 7 In one embodiment, with the direction from the air inlet 410 to the air outlet 420 as a reference direction, the inner diameter of the housing 400 near the air outlet 420 gradually decreases to form the suction nozzle 450. In other words, in this embodiment, the suction nozzle 450 is integrated with the housing 400.

[0098] Please refer again Figure 2 In one embodiment, a heat absorbing member 421 is provided in the air outlet 420. The heat absorbing member 421 can absorb the heat of the aerosol to ensure that the temperature of the aerosol flowing out of the electronic atomization device 10 is appropriate, thereby ensuring the user's user experience.

[0099] See also Figure 16 In one embodiment, the inner sleeve 530 is provided with an air supply port 531 that communicates with the first airway 312a. When a user inhales through the mouthpiece 450, negative pressure is generated within the electronic atomization device 10, allowing external air to enter the electronic atomization device 10 through the air supply port 531. A portion of the airflow entering the electronic atomization device 10 through the air supply port 531 flows through the atomization assembly 320 into the first airway 312a, thereby diluting the aerosol within the first airway 312a and forming an aerosol with a suitable taste and concentration.

[0100] See also Figure 2 Figure 9 and Figure 17 In one embodiment, a detection cavity 213 is provided in the first bracket 210 and passes through the first bracket 210. The detection cavity 213 enables the interior of the power supply sleeve 312 to be connected to the air outlet 420. An airflow sensor 213a electrically connected to the atomization assembly 320 is provided in the detection cavity 213. A second air duct 312b is also formed between the power supply sleeve 312 and the inner shell 100. One end of the second air duct 312b is connected to the detection cavity 213, and the other end of the second air duct 312b is connected to the air supply port 531. The airflow entering the electronic atomization device 10 from the air supply port 531 can flow to the airflow sensor 213a through the second air duct 312b to trigger the airflow sensor 213a. When the airflow sensor 213a is triggered, the atomization device can be started to atomize. It is understood that when the user inhales through the mouthpiece 450, external airflow can pass through the air delivery port 531 and the second air channel 312b to trigger the airflow sensor 213a, thereby activating the atomizer assembly 320 to generate aerosol. When the airflow sensor 213a detects that there is no airflow in the detection chamber 213, the airflow sensor 213a can control the atomizer assembly 320 to stop atomizing.

[0101] See also Figure 18 In one embodiment, a method for assembling the electronic atomization device 10 described in each embodiment includes the following steps:

[0102] S1. Plug the first bracket 210 and the host 300 into a first carrier, and insert the first carrier into the accommodating cavity 110;

[0103] S2. When the first bracket 210 is located in the accommodating cavity 110 and the host 300 is at least partially located in the accommodating cavity 110, the second bracket 220 contacts and pushes the first carrier until the second bracket 220 is tightly fitted with the cavity wall of the accommodating cavity 110;

[0104] S3. Insert and mate the inner shell 100 and the outer shell 400 to form the oil tank 600, and make the oil tank 600 be connected to the main unit 300 accordingly.

[0105] In one embodiment, step S1 further includes:

[0106] S11, installing the airflow sensor 213a into the detection chamber 213;

[0107] S12, inserting the first bracket 210 into the power supply sleeve 312, the first bracket 210, the airflow sensor 213a and the power supply sleeve 312 form a first mounting carrier;

[0108] S13 , inserting the first carrier into the accommodating cavity 110 .

[0109] In one embodiment, step S2 further includes:

[0110] S21, assembling all components of the atomizing assembly 320 and placing them into the matching cavity 222 to form a third carrier;

[0111] S22 , making the third carrier contact and push the first carrier until the second bracket 220 is tightly fitted with the wall of the accommodating cavity 110 .

[0112] In one embodiment, step S3 further includes:

[0113] S31. When the second bracket 220 is tightly fitted with the wall of the accommodating cavity 110, the inner housing 100, the first bracket 210, the main unit 300, and the second bracket 220 form a second carrier. The second carrier extends from the air inlet 410 of the outer housing 400 into the outer housing 400 until one end of the inner housing 100 is plugged into the outer housing 400.

[0114] S32 , sleeve the base 500 on the side wall of the air inlet 410 , with the base 500 abutting against the second carrier.

[0115] In one embodiment, the assembly method further includes step S4, which includes:

[0116] S41, inserting the middle sleeve 520 and the inner sleeve 530 into the outer sleeve 510 in sequence to form a structurally stable base 500;

[0117] S42 , the base 500 is mounted on the air inlet 410 and is sealed with the oil tank 600 , thereby completing the assembly of the electronic atomization device 10 .

[0118] See also Figure 2 Combined with Figures 3 to 17 , in various embodiments, the airflow sensor 213a can be installed in the detection cavity 213 in the first bracket 210 along the reference direction M;

[0119] The power supply sleeve 312 can be plugged into and matched with the first bracket along the reference direction M to form a first mounting carrier together with the airflow sensor 213a;

[0120] The second bracket 220 can be sleeved on the atomizer assembly 320 along the reference direction M to form a third carrier;

[0121] The first loading carrier and the third loading carrier can be loaded into the accommodating cavity 110 along the reference direction M;

[0122] The second mounting body formed by the inner housing 100, the first bracket 210, the main body 300 and the second bracket 220 can be inserted into the accommodating cavity 430 of the outer housing 400 along the reference direction M to cooperate with the assembly portion 440;

[0123] The outer sleeve 510, the middle sleeve 520 and the inner sleeve 530 can be sequentially sleeved along the reference direction M to form the base 500;

[0124] The base 500 can be sleeved and matched with the housing 400 along the reference direction M to ultimately form an electronic atomization device 10 with a stable structure.

[0125] That is, the assembly of at least most of the components and devices of the electronic atomization device 10 can be performed along the reference direction M, thus simplifying the assembly of each component and device. In other words, the assembly of at least most of the components and devices can be completed simply by driving each component and device to move along the reference direction M. This arrangement can facilitate the automated assembly of the electronic atomization device 10 and significantly improve the assembly efficiency of the electronic atomization device 10.

[0126] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0127] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. An electronic atomization device, characterized in that: The electronic atomization device comprises: An outer shell, wherein an air inlet and an air outlet are respectively provided at two ends of the outer shell; an inner shell disposed within the outer shell, wherein an outer wall of the inner shell is spaced apart from the outer shell to form an oil tank surrounding the inner shell, a receiving cavity is defined within the inner shell, and a first oil inlet hole communicating with the oil tank is defined on a cavity wall on a side of the receiving cavity closer to the air inlet; an atomizer assembly and a power supply assembly, wherein the atomizer assembly and the power supply assembly are both disposed in the accommodating cavity and the atomizer assembly is closer to the air inlet than the power supply assembly, and the atomizer assembly is connected to the oil tank through the first oil inlet hole; In which, the power supply assembly includes a power supply sleeve, which is fitted with the inner wall of the inner shell. One of the outer wall of the power supply sleeve and the inner wall of the inner shell is provided with a first air duct extending axially along the inner shell. One end of the first air duct is connected to the atomization assembly, and the other end is connected to the air outlet.

2. The electronic atomization device according to claim 1, characterized in that The outer shell is provided with a accommodating cavity, and a mounting portion extending along the circumference of the outer shell is protruded on the cavity wall of the accommodating cavity near the air outlet. The inner shell is sleeved on the mounting portion to divide the accommodating cavity into the relatively isolated oil tank and the accommodating cavity.

3. The electronic atomization device according to claim 1, characterized in that The electronic atomization device further includes a base, which is sleeved on the air inlet and sealed with the oil tank.

4. The electronic atomization device according to claim 3, characterized in that The base is provided with a first mating groove and a second mating groove arranged around the first mating groove. The first mating groove and the second mating groove both extend along the circumference of the outer shell. The outer shell is inserted into the second mating groove and contacts the groove wall of the second mating groove. The inner shell is inserted into the first mating groove and contacts the groove wall of the first mating groove.

5. The electronic atomization device according to claim 4, characterized in that: The groove wall of the first matching groove is provided with a first abutting portion protruding into the first matching groove and abutting against the outer wall of the inner shell, and the first abutting portion is arranged around the inner shell; and / or A groove wall of the second matching groove is provided with a second abutting portion protruding into the second matching groove and abutting against the outer wall of the shell, and the second abutting portion is arranged around the shell.

6. The electronic atomization device according to claim 5, characterized in that The base includes an outer sleeve, a middle sleeve and an inner sleeve. The outer sleeve is mounted on the middle sleeve and at least a portion of its structure is spaced apart from the middle sleeve to form the second matching groove. The middle sleeve is mounted on the inner sleeve and at least a portion of its structure is spaced apart from the inner sleeve to form the first matching groove.

7. The electronic atomization device according to claim 6, characterized in that: The outer sleeve includes a fixing portion and a retaining portion connected to a peripheral wall of the fixing portion and extending radially inward. The retaining portion can simultaneously abut against an end of the middle sleeve away from the outer shell and an end of the inner sleeve away from the outer shell.

8. The electronic atomization device according to claim 1, characterized in that The outer shell and the inner shell are integrally arranged.

9. The electronic atomization device according to claim 1, characterized in that: The outer shell and the inner shell are both regular circular tubular structures or regular prismatic tubular structures, or one of them is a regular circular tubular structure and the other is a regular prismatic tubular structure; and / or, The outer shell and the inner shell are coaxially arranged; and / or, The difference in radial dimensions between the outer shell and the inner shell is constant; and / or Taking the direction from the air inlet to the air outlet as a reference direction, the radial size of the housing gradually increases, or the radial size of the housing gradually decreases.

10. The electronic atomization device according to claim 1, characterized in that: At least a portion of the outer shell is a transparent area, which extends in a direction from the air inlet to the air outlet. A radial projection of the transparent area onto the inner shell at least partially covers the first oil inlet hole.

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