Atomizer

Abstract

The utility model provides an atomizer which comprises an oil bin, an airflow channel, a first oil storage space and a capillary liquid return pipeline, the oil bin comprises a gas phase area and a liquid phase area, atomized liquid is stored in the liquid phase area, an atomization assembly used for forming aerosol is arranged in the airflow channel, the atomization assembly is communicated with the oil bin through a liquid outlet hole, and the liquid outlet hole is communicated with the first oil storage space. The first oil storage space is distributed at the gas inlet end of the gas flow channel and can collect overflow liquid flowing out of the gas inlet end of the gas flow channel, the capillary liquid return pipeline comprises a liquid inlet end and a liquid outlet end, the liquid inlet end extends to the first oil storage space, and the liquid outlet end extends to a gas phase area of the oil bin; by means of the arrangement, the first oil storage space and the capillary liquid return pipeline are utilized to prevent atomized liquid from leaking to the outer side of the atomizer, and meanwhile the situation that a large amount of atomized liquid in the oil bin overflows to the first oil storage space through the capillary liquid return pipeline can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization, in particular to an atomizer. BACKGROUND

[0002] The atomizer (also known as electronic cigarette, vaporizer, inhaler, electronic atomizer, electronic atomizer, etc.) is essentially an electronic atomization product for heating and atomizing atomization liquid (such as tobacco liquid) to form aerosol for users to smoke, as a substitute for traditional tobacco products.

[0003] Atomization liquid overflow has always been one of the common phenomena of atomizers. Currently, the main reason for the overflow of atomization liquid is that the pore structure of the porous material used to form the base body of the atomization assembly has a certain permeation flow capacity for fluid. When the external force breaks through the capillary liquid locking ability of the porous material, atomization liquid overflow occurs. Especially after the porous material is saturated, the possibility of occurrence is greater, and with the increase of the oil tank capacity of the atomizer and the influence of time or environmental factors, this problem is more prominent. Too much overflow will cause damage to key components such as circuit boards or batteries, and in severe cases, it will cause liquid leakage. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides an atomizer to solve the problem of atomization liquid overflow in the prior art.

[0005] In order to achieve the above purpose, the present application provides the following technical solutions:

[0006] An atomizer comprises:

[0007] An oil tank comprising a gas phase region and a liquid phase region, wherein the liquid phase region stores atomization liquid;

[0008] An airflow channel internally provided with an atomization assembly for forming aerosol, wherein the atomization assembly is in communication with the oil tank through a liquid outlet hole;

[0009] A first oil storage space distributed at an air inlet end of the airflow channel and capable of collecting overflow liquid flowing out of the air inlet end of the airflow channel;

[0010] A capillary liquid return pipeline comprising a liquid inlet end and a liquid outlet end, wherein the liquid inlet end extends to the first oil storage space, and the liquid outlet end extends to the gas phase region of the oil tank.

[0011] Preferably, an air inlet channel is provided, wherein the air inlet channel and the airflow channel are in communication through the first oil storage space, and the air outlet end of the air inlet channel and the air inlet end of the airflow channel are arranged in a staggered manner.

[0012] Preferably, the first oil storage space is internally provided with a flow guide structure for guiding the overflow liquid flowing out of the air inflow end of the airflow channel into a local part of the first oil storage space for collecting the overflow liquid.

[0013] Preferably, the oil reservoir and the first oil storage space are distributed along the extension direction of the airflow channel, the inner wall of the first oil storage space close to the oil reservoir is a top wall, the inner wall of the first oil storage space away from the oil reservoir is a bottom wall, and the inner wall of the first oil storage space connecting the bottom wall and the top wall is a side wall, the flow guide structure comprises a flow guide slope, and the flow guide slope comprises:

[0014] a first flow guide slope located at the top wall and inclined in a direction away from the air inflow end of the airflow channel and towards the bottom wall for guiding the overflow liquid to the side wall;

[0015] and / or a second flow guide slope located at the bottom wall and inclined towards the local part of the first oil storage space for collecting the overflow liquid.

[0016] Preferably, the flow guide structure further comprises a flow guide groove provided on the top wall and extending from the air inflow end of the airflow channel towards the side wall.

[0017] Preferably, an arc-shaped guide surface is provided between the top wall of the first oil storage space and the inner wall of the airflow channel.

[0018] Preferably, the device further comprises:

[0019] a second oil storage space located at the air outflow end of the airflow channel and capable of collecting the overflow liquid flowing out of the air outflow end of the airflow channel.

[0020] Preferably, the device comprises an air outflow channel, the air outflow channel and the airflow channel are communicated through the second oil storage space, and the air inflow end of the air outflow channel and the air outflow end of the airflow channel are arranged in a staggered manner.

[0021] Preferably, the capillary liquid return pipeline is integrally formed with the oil reservoir, or the capillary liquid return pipeline is a pipe member sealingly fixed to the oil reservoir.

[0022] Preferably, the capillary liquid return pipeline is provided with a porous material in the lumen.

[0023] Preferably, a plurality of capillary liquid return pipelines are provided.

[0024] Preferably, the local part of the first oil storage space for collecting the overflow liquid and the local part of the second oil storage space for collecting the overflow liquid are both provided with a liquid absorbing material.

[0025] The atomizer provided in the application is provided with a first oil storage space at the air inlet end of the airflow channel, and a capillary liquid return pipeline is arranged to communicate the first oil storage space and the oil tank. In this way, when the overflow liquid flows out from the air inlet end of the airflow channel, it will enter the first oil storage space. During use of the atomizer, the atomizing liquid in the oil tank is continuously consumed, resulting in a negative pressure in the oil tank, and then a pressure difference is formed between the liquid inlet end and the liquid outlet end of the capillary liquid return pipeline. The overflow liquid stored in the first oil storage space returns to the oil tank under the action of the above-mentioned pressure difference. In this way, the negative pressure in the oil tank is reduced, and at the same time, the circulation of the overflow liquid in the atomizer is formed, which can effectively prevent the atomizing liquid from leaking to the outside of the atomizer. In addition, since the capillary liquid return pipeline extends to the gas phase region of the oil tank, in the standing state of the atomizer, the liquid outlet end of the capillary liquid return pipeline is higher than the liquid surface in the oil tank, and thus the atomizing liquid in the oil tank can be prevented from flowing to the first oil storage space through the capillary liquid return pipeline. At the same time, since the capillary liquid return pipeline is a structure capable of producing capillary effect, that is, the capillary liquid return pipeline itself is a microporous pipeline or a pipeline with capillary material filled in the pipeline cavity. On this basis, when the atomizer is in the tilted state, the capillary structure in the capillary liquid return pipeline can slow down the speed of the atomizing liquid flowing to the first oil storage space through the capillary liquid return pipeline, and thus a large amount of atomizing liquid overflows to the first oil storage space. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0027] Figure 1 A structural schematic diagram of an atomizer provided in an embodiment of the present application;

[0028] Figure 2 A structural schematic diagram of another atomizer provided in an embodiment of the present application;

[0029] Figure 3 A structural schematic diagram of another atomizer provided in an embodiment of the present application;

[0030] Figure 4 A structural schematic diagram of another atomizer provided in an embodiment of the present application;

[0031] Figure 5 A structural schematic diagram of another atomizer provided in an embodiment of the present application; Figure 1 A local enlarged view of the B region in FIG. 8.

[0032] In Figures 1-5 , the B region in FIG. 8 is a local enlarged view of the B region in FIG. 8.

[0033] 1, housing, 2, oil tank, 3, suction nozzle, 4, first oil storage space, 5, second oil storage space, 6, airflow channel, 7, air inlet channel, 8, air outlet channel, 9, capillary liquid return pipeline, 10, liquid outlet hole, 11, top wall, 12, side wall, 13, liquid absorbing material, 14, atomization assembly, 15, bottom wall, 16, arc-shaped guide surface, 17, flow guide groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] As shown in Figures 1-4 , the present application provides an atomizer, which comprises a housing 1, and one end of the housing 1 forms a suction nozzle 3 of the atomizer, and the opposite end is provided with a base (not shown in the figure). The inside of the housing 1 has an oil tank 2, an airflow channel 6, a first oil storage space 4 and a capillary liquid return pipeline 9; wherein:

[0036] The oil tank 2 is a structure for storing atomized liquid in the atomizer. In specific implementation, the oil tank 2 can be integrally formed with the housing 1, for example, as shown in Figures 1-4 , the partial housing 1 forms the side wall 12 of the oil tank 2, that is, the top wall 11 and the bottom wall 15 of the oil tank 2 are directly formed thereon; or, the oil tank 2 can also be a storage structure independent of the housing 1 and arranged inside the housing 1 (not shown in the figure), that is, the oil tank 2 is a structure similar to an inner container arranged inside the housing 1, and in this arrangement, the oil tank 2 is fixed inside the housing 1 by a locking mechanism (such as a threaded structure), or the oil tank 2 can also be fixed inside the housing 1 by welding. In addition, the inside of the oil tank 2 includes a gas phase region and a liquid phase region; wherein the gas phase region refers to a region inside the oil tank 2 that is in a gas phase under the standing state of the atomizer (i.e. the standing state when the suction nozzle 3 of the atomizer is upward, the same below), that is Figures 1-4 , the region inside the oil tank 2 close to the top wall 11; the liquid phase region refers to a region inside the oil tank 2 that is in a liquid phase under the standing state of the atomizer, that is Figures 1-4 , the region inside the oil tank 2 other than the gas phase region.

[0037] The airflow channel 6 is a channel in the atomizer for generating aerosol and guiding the aerosol to the target position, further, as shown in Figures 1-4As shown, the inside of the airflow channel 6 is provided with an atomization assembly 14 for forming aerosol, and the atomization assembly 14 is in communication with the oil tank 2 through the liquid outlet hole 10; in use, the atomized liquid in the oil tank 2 flows into the atomization assembly 14 through the liquid outlet hole 10, and is atomized under the action of the atomization assembly 14 and enters the airflow channel 6 to mix with the airflow in the airflow channel 6 to form aerosol.

[0038] Further, the atomization assembly 14 includes a base and a heating body; wherein the base is arranged at the position of the liquid outlet hole 10 of the oil tank 2 and can cover at least the oil outlet end face of the entire liquid outlet hole 10 to avoid a large amount of leakage of the atomized liquid in the oil tank 2 through the liquid outlet hole 10 (here, the large amount of leakage refers to the leakage amount of the atomized liquid exceeding the allowable value in the design process of the atomizer, and the same below), and the heating body is arranged on the base and serves as a heat source for atomization to promote atomization and form aerosol in the airflow channel 6. It can be understood that the atomized liquid in the oil tank 2 needs to be specifically guided to the position of the heating body to achieve atomization, and based on this, in some application scenarios, the base is made of porous material (for example, porous ceramic or porous cotton), and the porous material itself has a certain liquid guiding capability, and during atomization, the liquid in the oil tank 2 can flow to the position of the heating body under the liquid guiding action of the base itself. In addition, the heating body refers to a heating element that can emit heat to atomize the liquid in the atomizer, and examples thereof include a metal heating element formed by spirally or braided, such as a columnar spiral heating wire; of course, the structure of the heating body is not limited to a columnar structure, and can also be a flat structure, such as a heating sheet. In addition, in terms of material, the heating body can be made of a single porous conductive material, such as porous conductive ceramic, porous metal body, or a composite structure made of porous material and conductive material, such as a composite body formed by porous ceramic or porous glass and etched metal sheet or metal coating.

[0039] Of course, the base in the present application is not limited to porous material, and can also be made of dense material (for example, plastic, silicone, dense ceramic, etc.) provided with liquid guiding channels; the liquid guiding channels are used to guide the atomized liquid in the oil tank 2 to flow to the position of the heating body.

[0040] The first oil storage space 4 is a space for collecting and storing overflow liquid (the overflow liquid specifically refers to liquid flowing out of the airflow channel 6, which includes atomized liquid permeating or leaking from the atomizing assembly 14 to the airflow channel 6, and condensed liquid formed by condensation of aerosol on the inner wall of the airflow channel 6, and the same below). It should be understood that the atomized liquid in the oil tank 2 needs to be able to enter the airflow channel 6 through the atomizing assembly 14, and on the basis of this requirement, the atomized liquid will inevitably permeate or leak from the atomizing assembly 14 to the airflow channel 6 regardless of the form of the base. In addition, during use of the atomizer, condensation occurs when the aerosol contacts the inner wall of the airflow channel 6, which is relatively low in temperature, and thus condensed liquid is generated. The above-mentioned condensed liquid and atomized liquid permeating or leaking from the atomizing assembly 14 to the airflow channel 6 will flow along the inner wall of the airflow channel 6 under the action of gravity until it flows out of the airflow channel 6. Based on this, the first oil storage space 4 in the present application is distributed at the air inlet end of the airflow channel 6 (i.e. the side through which external airflow enters the airflow channel 6 during use of the atomizer), and is capable of collecting overflow liquid flowing out of the air inlet end of the airflow channel 6. In this way, overflow liquid flowing out of the air inlet end of the airflow channel 6 can be prevented from flowing to the outside of the atomizer, thereby improving the user experience.

[0041] Further, as shown in Figures 1-4 The capillary liquid return pipeline 9 includes a liquid inlet end (i.e. the end at which overflow liquid enters the capillary liquid return pipeline 9) and a liquid outlet end (i.e. the end at which overflow liquid flows out of the capillary liquid return pipeline 9), and the liquid inlet end extends to the first oil storage space 4 and the liquid outlet end extends to the gas phase region of the oil tank 2. It should be understood that as the atomizer is used, the atomized liquid inside the oil tank 2 will become less and less, and because the space in the oil tank 2 for storing atomized liquid is a relatively closed space, when the atomized liquid decreases, a negative pressure will be formed inside the oil tank 2, and the magnitude of the negative pressure is directly proportional to the amount of consumption of atomized liquid. In this way, during use of the atomizer, as the atomized liquid is consumed, a pressure difference will be formed between the liquid inlet end and the liquid outlet end of the capillary liquid return pipeline 9, causing the overflow liquid in the first oil storage space 4 to return to the inside of the oil tank 2 under the action of the pressure difference; thereby forming a circulating loop for overflow liquid inside the atomizer, avoiding overflow liquid leakage caused by excessive accumulation of overflow liquid in the first oil storage space 4; in addition, the above-mentioned arrangement can also reduce waste of atomized liquid and reduce the negative pressure inside the oil tank 2, so that the atomized liquid in the oil tank 2 can be smoothly guided to the heating body through the base during use of the atomizer, ensuring the amount of aerosol formation, and thereby improving the user experience. In addition, the liquid outlet end of the capillary liquid return pipeline 9 extends to the gas phase region of the oil tank 2, i.e. in the standing state of the atomizer, the liquid outlet end of the capillary liquid return pipeline 9 is higher than the liquid level of the atomized liquid, so that in the standing state of the atomizer, the atomized liquid in the oil tank 2 can be effectively prevented from flowing into the first oil storage space 4 through the capillary liquid return pipeline 9.

[0042] It should be noted that: the capillary return line 9 in the present application specifically refers to a line that can produce a capillary effect. For example: it can be a small pipe that can produce a capillary effect, that is, the inner diameter of the tube cavity of the capillary return line 9 is relatively small, so that the overflow liquid can produce a capillary effect after entering the tube cavity of the capillary return line 9. For another example: it can also be a line filled with capillary material inside, or in other words, the tube cavity of the capillary return line 9 is provided with a porous material that can produce a capillary effect, and then the capillary material in the tube cavity of the capillary return line 9 is used to make the overflow liquid produce a capillary effect after entering the tube cavity of the capillary return line 9. With such a setting, on the one hand, the capillary effect can be used to promote the overflow liquid to overcome gravity and flow from the first oil storage space 4 to the inside of the oil tank 2; on the other hand, in the tilted state of the atomizer (the tilted state of the atomizer refers to the state when the atomizer is tilted to one side or fallen, for example: Figure 1 The state of the atomizer when the atomizer is flipped 90° counterclockwise), affected by factors such as gravity, the liquid outlet end of the capillary return line 9 will be below the liquid level of the atomized liquid. At this time, the above-mentioned setting method of the capillary return line 9 can effectively prevent the atomized liquid in the oil tank 2 from leaking in large quantities through the capillary return line 9, further reducing the risk of leakage of atomized liquid in the atomizer in this application, and can effectively improve the user experience.

[0043] Furthermore, in some embodiments, Figure 1 and Figure 2 As shown, the capillary return line 9 is integrally formed with the oil tank 2. The capillary return line 9 is a tubular structure formed within the housing 1 and extending through the oil tank 2. With this arrangement, no additional sealing connection is required between the capillary return line 9 and the oil tank 2, resulting in a better seal at the interface between the two and less likely to cause leakage of the atomized liquid. Alternatively, the capillary return line 9 can be a "["-shaped hole formed in the housing 1, with the two openings of the "["-shaped hole located in the overflow liquid collection area of ​​the first oil storage space 4 and the gas phase region of the oil tank 2, respectively.

[0044] In other embodiments, Figure 3 As shown, the capillary return line 9 is a pipe (such as a steel pipe) independent of the oil tank 2 and the housing 1, and the capillary return line 9 is sealed and fixed to the oil tank 2. In this way, the processing difficulty and cost of the oil tank 2 and the capillary return line 9 can be simplified.

[0045] In addition, in some embodiments, the capillary return liquid pipeline 9 is a hose, and the liquid outlet end of the capillary return liquid pipeline 9 is provided with a floating block capable of floating on the surface of the atomized liquid, so that the liquid outlet end of the capillary return liquid pipeline 9 is always located above the liquid level of the atomized liquid, and is not affected by the placement state of the atomizer; thereby avoiding the atomized liquid in the oil tank 2 flowing to the first oil storage space 4 through the capillary return liquid pipeline 9, and reducing the risk of atomized liquid leakage of the atomizer. The above-mentioned floating block can be an air bag or a block-shaped object with a density less than that of the atomized liquid.

[0046] Regarding the number of capillary return liquid pipelines 9, during implementation, adaptive design can be performed according to needs. For example, in some embodiments, the capillary return liquid pipeline 9 is provided with only one, which is beneficial to reduce the processing difficulty and processing cost. In other embodiments, the capillary return liquid pipeline 9 is provided with a plurality of, which is more beneficial to the overflow liquid of the first oil storage space 4 to flow to the inside of the oil tank 2.

[0047] As shown in Figures 1-4 , the atomizer in the present application includes an air inlet channel 7, and the air inlet channel 7 and the airflow channel 6 are communicated through the first oil storage space 4, that is, the air inlet channel 7 and the airflow channel 6 are not directly communicated, but the first oil storage space 4 is used as a medium to make the air outlet end of the air inlet channel 7 communicate with the second oil storage space 5, and make the air inlet end of the airflow channel 6 communicate with the second oil storage space 5, so as to realize the communication between the airflow channel 6 and the air inlet channel 7. By such arrangement, the overflow liquid flowing out of the air inlet end of the airflow channel 6 must pass through the first oil storage space 4 to enter the air inlet channel 7, thereby ensuring that the first oil storage space 4 achieves the expected interception effect, and avoiding the overflow liquid flowing out of the atomizer through the air inlet channel 7.

[0048] Regarding the formation of the air inlet channel 7, in some exemplary embodiments, as shown in Figures 1-4 , a silica gel base is arranged on the side of the oil tank 2 away from the suction nozzle 3 inside the shell 1 of the atomizer, and the silica gel base is sealingly connected with the inner wall of the shell 1 and has a gap with the oil tank 2, which is the first oil storage space 4. In addition, as shown in Figures 1-4 , a through hole is arranged on the silica gel base, and the through hole can communicate the first oil storage space 4 with the outside, and the through hole is the air inlet channel 7 of the atomizer.

[0049] Further, on the basis that the air inlet channel 7 and the airflow channel 6 are communicated through the first oil storage space 4, the air outlet end of the air inlet channel 7 and the air inlet end of the airflow channel 6 are arranged in a staggered manner; that is to say, in the standing state of the atomizer, in the direction of gravity, the projection of the air outlet end of the air inlet channel 7 on the support surface (i.e. the surface for supporting the atomizer to keep it in the standing state, the same below) does not coincide with the projection of the air inlet end of the airflow channel 6 on the support surface. It should be understood that in some application scenarios, under the influence of gravity and other factors, the overflow liquid will directly drip at the air inlet end of the airflow channel 6. In the present embodiment, by arranging the air outlet end of the air inlet channel 7 and the air inlet end of the airflow channel 6 in a staggered manner, the overflow liquid dripping from the air inlet end of the airflow channel 6 can be effectively prevented from directly entering the air inlet channel 7, thereby avoiding the overflow liquid leakage caused by the above-mentioned situation. Of course, in addition to the above-mentioned staggered arrangement scheme, the size of the air outlet end of the air inlet channel 7 and the air inlet end of the airflow channel 6 can also be controlled to prevent the overflow liquid dripping from the air inlet end of the airflow channel 6 from directly entering the air inlet channel 7. Specifically, in some other embodiments, the end surface size of the air inlet end of the airflow channel 6 is greater than the end surface size of the air outlet end of the air inlet channel 7; that is to say, in the standing state of the atomizer, in the direction of gravity, the projection of the air inlet end of the airflow channel 6 on the support surface falls completely within the projection of the air outlet end of the air inlet channel 7 on the support surface. It should be understood that under the influence of liquid surface tension and other factors, the overflow liquid inside the airflow channel 6 will flow along the inner wall of the airflow channel 6 in the direction of gravity, and therefore the dripping position of the overflow liquid is the edge of the end surface of the air inlet end of the airflow channel 6. Based on this, by setting the end surface size of the air inlet end of the sol transport channel to be greater than the end surface size of the air outlet end of the air inlet channel 7, the overflow liquid dripping from the air inlet end of the airflow channel 6 can be effectively prevented from directly entering the air inlet channel 7.

[0050] In addition, on the basis that the air inlet channel 7 and the first oil storage space 4 are communicated, the present application is provided with a flow guide structure inside the first oil storage space 4 for guiding the overflow liquid flowing out of the air inlet end of the airflow channel 6 to a part of the first oil storage space 4 for collecting the overflow liquid; or in other words, the first oil storage space 4 is provided with a flow guide structure, and the flow guide structure can guide the overflow liquid away from the area where the overflow liquid may enter the air inlet channel 7, for example, the area where the overflow liquid will drip into the air inlet channel 7 after separating from the inner wall of the first oil storage space 4 under the action of gravity. In this way, the trapping effect of the first oil storage space 4 can be further improved to prevent the overflow liquid from entering the air inlet channel 7 and leaking to the outside of the housing 1 of the atomizer through the air inlet channel 7.

[0051] In some embodiments, the flow guide structure comprises a flow guide slope, when the overflow liquid is on the flow guide slope, the gravity of the overflow liquid will generate a horizontal component under the influence of the slope, thereby driving the overflow liquid to move along the inclined direction of the flow guide slope, so that the overflow liquid flows to the target area, thus making the flow path of the overflow liquid more controllable, avoiding the overflow liquid gathering and growing at a certain position to form a large water droplet and falling into the air passage 7, thereby improving the leakage prevention effect of the atomizer; and / or, it can also avoid the overflow liquid gathering in the first oil storage space 4 away from the liquid inlet end of the capillary liquid return pipeline 9, so as to ensure that the overflow liquid in the first oil storage space 4 can return to the oil tank 2 in time.

[0052] In an exemplary embodiment, as shown in Figures 1-4 The oil tank 2 and the first oil storage space 4 are distributed along the extension direction of the air flow passage 6, the inner wall of the first oil storage space 4 close to the oil tank 2 is the top wall 11, the inner wall away from the oil tank 2 is the bottom wall 15, and the inner wall connecting the bottom wall 15 and the top wall 11 in the first oil storage space 4 is the side wall 12. The flow guide slope comprises a first flow guide slope located on the top wall 11 of the first oil storage space 4, and in the direction away from the air inlet end of the air flow passage 6, the first flow guide slope is inclined in the direction close to the bottom wall 15, so as to guide the overflow liquid to the side wall 12 and guide it to the bottom of the first oil storage space 4 through the side wall 12. In this arrangement, the overflow liquid entering the first oil storage space 4 always adheres to the inner wall of the first oil storage space 4 and flows along the inner wall of the first oil storage space 4, thereby avoiding the overflow liquid growing at a certain position of the top wall 11 of the first oil storage space 4 to form a large water droplet and falling into the air passage 7, which can effectively improve the leakage prevention effect of the atomizer. Further specifically, as shown in Figures 1-4 The top wall 11 of the first oil storage space 4 is arranged as an umbrella top structure, and the slope forming the umbrella top structure is the first flow guide slope, so that the overflow liquid flowing into the top wall 11 of the first oil storage space 4 from any direction can flow to the side wall 12 of the first oil storage space 4 under the action of the first flow guide slope. Of course, the above-mentioned umbrella top structure is only an exemplary embodiment of the first flow guide slope, and the present application is not limited thereto, for example: the top wall 11 can also be arranged as a pyramid or a chevron shape to form the first flow guide slope.

[0053] In another example embodiment, different from the above embodiment, the flow guide slope in this embodiment only includes a second flow guide slope on the bottom wall 15 of the first oil storage space 4, which is locally inclined to collect the overflow liquid in the first oil storage space 4. In this arrangement, the overflow liquid entering the first oil storage space 4 can quickly gather in the local part of the first oil storage space 4 for collecting the overflow liquid, and then flow into the oil reservoir 2 through the capillary return liquid pipeline 9, which is conducive to reducing the accumulation of overflow liquid in the first oil storage space 4, and thus avoiding the overflow liquid in the first oil storage space 4 from easily leaking to the outside of the atomizer due to the accumulation of excessive overflow liquid in the first oil storage space 4. Further specifically, as shown in Figures 1-4 the bottom wall 15 of the first oil storage space 4 is arranged in a umbrella top structure, and the slope forming the umbrella top structure is the second flow guide slope. In this embodiment, the bottom wall 15 of the first oil storage space 4 forms a groove (for details, please refer to Figures 1-4 ), and the local part of the groove structure is the local part of the first oil storage space 4 for collecting the overflow liquid. The liquid inlet end of the capillary return liquid pipeline 9 is arranged close to the bottom of the groove. In this way, the overflow liquid collected in the groove can flow into the oil reservoir 2 through the capillary return liquid pipeline 9 at the first time. Of course, the above-mentioned umbrella top structure is only an example embodiment of the second flow guide slope, and the present application is not limited thereto. For example, the first oil storage space 4 can also be arranged in a V-shaped ring groove structure, and the slope forming the V-shaped ring groove structure is the second flow guide slope.

[0054] In another example embodiment, different from the above two embodiments, the flow guide slope in this embodiment includes both the first flow guide slope and the second flow guide slope. Since the arrangement and beneficial effects of the first flow guide slope and the second flow guide slope are the same as the above two embodiments, they will not be described here.

[0055] In other embodiments, the flow guide structure further includes a flow guide groove 17 (i.e. a groove structure capable of guiding the overflow liquid to flow in a certain direction) arranged on the top wall 11, and the flow guide groove 17 extends from the air inlet end of the airflow channel 6 towards the side wall 12 of the first oil storage space. In this way, the flow of the overflow liquid on the top wall 11 of the first oil storage space 4 can be promoted, which is more conducive to the return of the overflow liquid to the oil reservoir 2 through the capillary return liquid pipeline 9. More specifically, as shown in Figure 4 the top wall 11 of the first oil storage space 4 is provided with a plurality of circumferentially arranged capillary grooves (the capillary groove refers to a micro channel or groove designed by utilizing the capillary phenomenon, and the same below), or in other words, the top wall 11 of the first oil storage space 4 is provided with a plurality of capillary grooves extending from the air inlet end of the airflow channel 6 towards the side wall 12 of the first oil storage space. At this time, the capillary groove is the flow guide groove 17 mentioned above.

[0056] It should be understood that the flow guide groove 17 and the flow guide slope are only exemplary embodiments of the flow guide structure, and the present application is not limited thereto. For example, the flow guide structure can also include a small protrusion provided on the top wall 11 of the first liquid storage space, and the small protrusion extends from the air inlet end of the air flow channel 6 to the side wall 12 of the first liquid storage space. For another example, the flow guide structure can also include a flow guide hole provided inside the top wall 11 of the first liquid storage space, and the flow guide hole communicates the air flow channel 6 with the first liquid storage space 4, that is, one end of the flow guide hole is open in the air flow channel 6, so that the overflow liquid in the air flow channel 6 can flow into the flow guide hole, and the other end of the flow guide hole is open in the inner wall of the first liquid storage space 4, so that the overflow liquid in the flow guide hole can flow into the first liquid storage space 4. In addition, in this embodiment, a liquid blocking groove can be further provided in the air flow channel 6, and the air flow channel 6 flows into the liquid blocking groove and then enters the flow guide hole under the guidance of the liquid blocking groove.

[0057] In some application scenarios, the included angle A between the top wall 11 of the first liquid storage space 4 and the inner wall of the air flow channel 6 (the included angle A can be referred to the drawing) Figure 1 ) is small, and based on this, in order to guide the overflow liquid on the inner wall of the air flow channel 6 to the top wall 11 of the first liquid storage space 4 and avoid the overflow liquid directly dropping at the air inlet end of the air flow channel 6, in some embodiments, an arc-shaped guide surface 16 (which can be referred to the drawing Figure 5 ) is provided between the top wall 11 of the first liquid storage space 4 and the inner wall of the air flow channel 6, and is used as a transition structure to guide the overflow liquid in the sol delivery channel to the top wall 11 of the first liquid storage space 4. In an exemplary embodiment, as shown in the drawing Figure 1 , the first liquid storage space 4 is provided with a liquid inlet connected with the air flow channel 6, and the inner side surface of the liquid inlet (that is, the surface of the liquid inlet connecting the top wall 11 of the first liquid storage space 4 and the inner wall of the air flow channel 6) is an arc-shaped surface, which is the arc-shaped guide surface 16 mentioned above.

[0058] In addition, it should be noted that the size of the arc-shaped guide surface 16 can be adaptively designed as needed, and the present application does not make specific limitations thereto.

[0059] In addition, as shown in the drawing Figures 1-4As shown, the atomizer in the present application further comprises a second oil storage space 5, and the second oil storage space 5 is located at the air outlet end of the airflow channel 6 and can collect overflow liquid flowing out of the air outlet end of the airflow channel 6. It should be understood that when the atomizer is in a pouring state or an inverted state (the inverted state refers to the placement state of the atomizer when the suction nozzle 3 of the atomizer is downward), the liquid in the airflow channel 6 will flow to the end of the suction nozzle 3 of the atomizer (i.e. the end of the atomizer where the suction nozzle 3 is arranged) under the action of gravity. That is, the flow direction of the liquid in the airflow channel 6 will change according to the placement state of the atomizer. Based on this, the second oil storage space 5 is arranged in the present embodiment to collect overflow liquid flowing out of the air outlet end of the airflow channel 6, and in combination with the first oil storage space 4, it can ensure that the atomizer will not leak atomizing liquid no matter how it is placed, thereby further improving the use effect of the user. In addition, the second oil storage space 5 can also capture and collect liquid beads mixed in the aerosol, thereby avoiding liquid beads entering the user's oral cavity with the airflow, which can effectively improve the smoking taste of the user.

[0060] In some embodiments, as Figures 1-4 As shown, the atomizer comprises an air outlet channel 8 (i.e. a channel for guiding the aerosol out of the atomizer, the same below), and the air outlet channel 8 and the airflow channel 6 are communicated through the second oil storage space 5, that is, the air outlet end of the airflow channel 6 is communicated with the second oil storage space 5, and at the same time, the air inlet end of the air outlet channel 8 is communicated with the second oil storage space 5, so as to realize the communication between the airflow channel 6 and the air outlet channel 8, and the air outlet channel 8 and the airflow channel 6 are not directly communicated. By such arrangement, the medium (including overflow liquid and all substances flowing out of the airflow channel 6 such as aerosol) flowing out of the airflow channel 6 must pass through the second oil storage space 5 to enter the air outlet channel 8, thereby ensuring that the second oil storage space 5 achieves the expected trapping effect and avoids the liquid substances in the above-mentioned medium flowing out of the atomizer through the air outlet channel 8.

[0061] In some example embodiments, as Figures 1-4 As shown, the suction nozzle 3 is provided with a through hole communicated with the outside and the second oil storage space, and the through hole is the air outlet channel 8 of the atomizing device. Further, the side of the air outlet channel 8 away from the second oil storage space 5 is in a trumpet shape, which is more conducive to improving the smoking taste of the user.

[0062] Further, the air inlet end of the air outlet channel 8 and the air outlet end of the airflow channel 6 are arranged in a staggered manner. It should be noted that the arrangement manner of the air inlet end of the air outlet channel 8 and the air outlet end of the airflow channel 6 is the same as the above-mentioned "the air outlet end of the air inlet channel 7 and the air inlet end of the airflow channel 6 are arranged in a staggered manner", and thus, the present application will not be described here again. However, the air inlet end of the air outlet channel 8 and the air outlet end of the airflow channel 6 are arranged in a staggered manner, which can not only avoid the overflow liquid dripping from the air outlet end of the airflow channel 6 directly entering the air outlet channel 8, but also improve the technical effect of the second oil storage space 5 trapping liquid (for example, condensate mixed in the aerosol). Specifically, after the air inlet end of the air outlet channel 8 and the air outlet end of the airflow channel 6 are arranged in a staggered manner, the trajectory of the aerosol flowing out of the atomizer is no longer a straight line, which can increase the probability of liquid in the aerosol separating from the airflow, improve the technical effect of the second oil storage space 5 trapping liquid, and further improve the user's smoking taste. Similarly, in some other embodiments, the size of the air inlet end of the air outlet channel 8 and the air outlet end of the airflow channel 6 can also be controlled to avoid the overflow liquid dripping from the air outlet end of the airflow channel 6 directly entering the air outlet channel 8. For details, reference can be made to the above, and thus, the present application will not be described here again.

[0063] In addition, in some embodiments, the part of the first oil storage space 4 collecting the overflow liquid and the part of the second oil storage space 5 collecting the overflow liquid are both provided with liquid absorbing material 13 (i.e., material capable of absorbing and storing liquid, such as liquid absorbing cotton). It should be understood that the process of the overflow liquid flowing from the first oil storage space 4 to the oil reservoir 2 through the capillary liquid return pipeline 9 is a process of overcoming gravity. Based on this, the negative pressure in the oil reservoir 2 needs to accumulate to a certain value to enable the overflow liquid to overcome gravity and enter the oil reservoir 2 along the capillary liquid return pipeline 9. Before this, the overflow liquid flowing into the first oil storage space 4 will be stored in the first oil storage space 4. Under this premise, the present embodiment provides the liquid absorbing material 13 in the first oil storage space 4, which can increase the flow resistance of the overflow liquid stored in the first oil storage space 4, thereby reducing the probability of the overflow liquid leaking to the outside of the atomizer through the air inlet channel 7 and improving the anti-leakage effect of the atomizer. In addition, as described above, the second oil storage space 5 is also a space for collecting and storing overflow liquid, and unlike the first oil storage space 4, the second oil storage space 5 is not provided with a structure capable of guiding the overflow liquid out, that is, the overflow liquid flowing into the second oil storage space 5 will be stored in the second oil storage space 5 entirely. Based on this, the present embodiment provides the liquid absorbing material 13 in the part of the second oil storage space 5 collecting the overflow liquid, which can avoid the overflow liquid stored in the second oil storage space 5 from leaking to the outside of the atomizer through the air outlet channel 8, thereby improving the anti-leakage effect of the atomizer.

[0064] In some specific embodiments, as shown in Figures 1-4 The first oil storage space 4, the oil reservoir 2 and the second oil storage space 5 are distributed along the height direction of the atomizer (the height direction of the atomizer can be referred to Figure 1), on the basis of the above, the first oil storage space 4 is provided with a first liquid storage groove on the side away from the oil tank 2, the second oil storage space 5 is provided with a second liquid storage groove on the side close to the oil tank 2, and the first liquid storage groove and the second liquid storage groove are respectively a part of the first oil storage space 4 for storing atomized liquid and a part of the second oil storage space 5 for storing atomized liquid; continue as Figures 1-4 shown, the inside of the first liquid storage groove and the second liquid storage groove is provided with liquid absorbing cotton to avoid the overflow liquid stored in the first liquid storage groove and the second liquid storage groove from flowing out.

[0065] The basic principles of the present application are described above in combination with specific embodiments, but it should be pointed out that the advantages, advantages, effects and the like mentioned in the present application are only examples and cannot be considered as the must-have of each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of example and understanding, and the above details do not limit the present application to the specific details.

[0066] The block diagram of the device, apparatus, equipment, system involved in the present application is only an illustrative example and is not intended to require or imply the connection, arrangement and configuration shown in the block diagram. As those skilled in the art will recognize, these devices, apparatus, equipment, system can be connected, arranged and configured in any way. Words such as "include", "contain", "have" and the like are open-ended words, which mean "include but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0067] It should also be pointed out that in the device, equipment and method of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombination should be considered as equivalent solutions of the present application.

[0068] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0069] It should be understood that the limiting words "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to clarify the technical solutions and cannot be used to limit the protection scope of the present application.

[0070] The foregoing description has been presented for the purposes of illustration and description. Furthermore, the description is not intended to limit the embodiments of the application to the forms disclosed herein. Although the above discussion has focused on various example aspects and embodiments, those skilled in the art will recognize certain modifications, permutations, additions, and sub-combinations thereof.

Claims

1. An atomizer characterized by, The oil tank comprises a gas phase region and a liquid phase region, and the liquid phase region stores atomized liquid; The airflow channel is internally provided with an atomization assembly for forming an aerosol, and the atomization assembly is in communication with the oil tank through a liquid outlet hole; The first oil storage space is distributed at the air inlet end of the airflow channel and is capable of collecting overflow liquid flowing out of the air inlet end of the airflow channel; The capillary liquid return pipeline comprises a liquid inlet end and a liquid outlet end, and the liquid inlet end extends to the first oil storage space, and the liquid outlet end extends to the gas phase region of the oil tank.

2. The atomizer according to claim 1, wherein The atomizer further comprises an air inlet channel, the air inlet channel and the airflow channel are in communication through the first oil storage space, and the air outlet end of the air inlet channel and the air inlet end of the airflow channel are arranged in a staggered manner.

3. The atomizer according to claim 2, wherein The first oil storage space is internally provided with a flow guide structure for guiding the overflow liquid flowing out of the air inlet end of the airflow channel to a local part of the first oil storage space for collecting the overflow liquid.

4. The atomizer according to claim 3, wherein The oil tank and the first oil storage space are distributed along the extension direction of the airflow channel, the inner wall of the first oil storage space close to the oil tank is a top wall, the inner wall of the first oil storage space away from the oil tank is a bottom wall, and the inner wall of the first oil storage space connecting the bottom wall and the top wall is a side wall, the flow guide structure comprises a flow guide slope, and the flow guide slope comprises: A first flow guide slope is located at the top wall, and in a direction away from the air inlet end of the airflow channel, the first flow guide slope is inclined along a direction close to the bottom wall to guide the overflow liquid to the side wall; and / or A second flow guide slope is located at the bottom wall, and the second flow guide slope is inclined to the local part of the first oil storage space for collecting the overflow liquid.

5. The atomizer according to claim 4, wherein The flow guide structure further comprises a flow guide groove arranged at the top wall, and the flow guide groove extends from the air inlet end of the airflow channel to the side wall.

6. The atomizer according to claim 4, wherein An arc-shaped guide surface is arranged between the top wall of the first oil storage space and the inner wall of the airflow channel. The atomizer further comprises:

7. The atomizer of any of claims 1-6, wherein, A second oil storage space is located at the air outlet end of the airflow channel and is capable of collecting overflow liquid flowing out of the air outlet end of the airflow channel.

8. The atomizer according to claim 7, wherein The atomizer further comprises an air outlet channel, the air outlet channel and the airflow channel are in communication through the second oil storage space, and the air inlet end of the air outlet channel and the air outlet end of the airflow channel are arranged in a staggered manner.

9. The atomizer according to any one of claims 1-6, wherein The capillary liquid return pipeline is integrally formed with the oil tank, or the capillary liquid return pipeline is a pipe member sealingly fixed to the oil tank.

10. The atomizer according to any one of claims 1-6, wherein A porous material is arranged in the lumen of the capillary liquid return pipeline.

11. The atomizer according to claim 7, wherein ​ The portion of the first oil-accumulating space that collects the overflow liquid and the portion of the second oil-accumulating space that collects the overflow liquid are each provided with a liquid-absorbing material.

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