Aerosol generating device

Abstract

The aerosol generating device comprises a shell, a sealing seat, a support, an atomization module and an oil cup, an air inlet and a cigarette holder are arranged at the two ends of the shell respectively, the cigarette holder is provided with an air outlet channel communicated with the outside, the oil cup is embedded into the shell and located at one end of the cigarette holder, and the sealing seat covers the end opening of the end, away from the cigarette holder, of the oil cup in a sealing mode. The sealing seat is provided with a ventilation groove, the atomization module is fixedly installed on the sealing seat and located in the oil cup, the air outlet end of the atomization module is communicated with the air outlet channel, the support is fixed to the side, away from the atomization module, of the sealing seat, the support is provided with an oil storage tank, the inner side wall of the oil storage tank is provided with a ventilation channel, and the ventilation channel is communicated with the ventilation groove and the air inlet hole. When tobacco tar in the tar cup is reduced and negative pressure is formed, external air can be introduced through ventilation, so that air pressure inside and outside the tar cup is balanced, sufficient liquid supply to the atomization module is guaranteed, and tobacco liquid permeating into the ventilation channel through the ventilation groove can be stored in the tar storage groove and prevented from leaking.

Description

Technical Field

[0001] The disclosed embodiments relate to the technical field of electronic cigarettes, and in particular to an aerosol generating device. Background Art

[0002] Electronic cigarettes are electronic products that imitate traditional cigarettes. They generate smoke by heating the oil for users to inhale. The core part of the electronic cigarette is the atomizer, which contains the oil and the atomizer core assembly. The electronic cigarette is equipped with an oil tank for storing the oil. The atomizer core assembly heats the oil in the oil tank to evaporate it and form smoke. When the oil in the oil tank decreases and forms a negative pressure, the oil supply to the atomizer core assembly is often insufficient, resulting in odor. Summary of the invention

[0003] The present disclosure provides an aerosol generating device to solve the problem of insufficient oil supply to an atomizing core assembly due to unbalanced air pressure in an oil tank.

[0004] In one aspect, the present disclosure provides an aerosol generating device, comprising:

[0005] A shell, wherein two ends of the shell are respectively provided with an air inlet and a mouthpiece, and the mouthpiece has an air outlet channel connected to the outside;

[0006] An oil cup, which is embedded in the shell and located at one end of the cigarette holder;

[0007] A sealing seat, the sealing seat is sealed at a port of the oil cup away from the cigarette holder, and the sealing seat has a ventilation groove;

[0008] an atomization module, wherein the atomization module is fixedly mounted on the sealing seat and is located in the oil cup, and an air outlet end of the atomization module is in communication with the air outlet channel; and

[0009] The bracket is fixed on a side of the sealing seat away from the atomization module, the bracket is provided with an oil storage tank, the inner side wall of the oil storage tank has a ventilation channel connected to the ventilation groove, and one end of the ventilation channel is connected to the air inlet.

[0010] In a possible implementation manner, a sealing silica gel is provided at one end of the oil storage tank close to the sealing seat, and a gap is provided between the ventilation channel and the sealing silica gel.

[0011] In a possible embodiment, there are two ventilation channels, which are evenly distributed on the two inner walls of the oil storage tank. The oil storage tank has an air guide channel at both ends which are respectively connected to the ventilation channel and the air inlet hole. The air guide channel is located in the middle of one end of the oil storage tank away from the atomization module.

[0012] In a possible implementation, a drainage channel is provided at one end of the bracket located at the oil cup, and both ends of the drainage channel are respectively connected to the oil storage tank and the ventilation tank, and the drainage channel and the oil storage tank form a step shape.

[0013] In a possible embodiment, each of the ventilation channels includes a first groove section extending from one end of the drainage channel close to the sealing silicone along the circumference of the drainage channel and a second groove section extending from one end of the first groove section along the height direction of the oil storage tank, the first groove section is located above the sealing silicone, and the free end of the first groove section is connected to the ventilation groove.

[0014] In a possible implementation manner, the cross-sectional area of ​​at least a portion of the second slot segment gradually decreases from the gas flow direction.

[0015] In a possible implementation manner, a cross-sectional area of ​​the first slot segment is smaller than a cross-sectional area of ​​any point of the second slot segment.

[0016] In a possible embodiment, the oil storage tank has an opening at one end away from the oil cup, and the aerosol generating device also includes a seal covering the opening, the rod of the seal extends into the oil storage tank, and the air guide channel extends along the height direction of the seal.

[0017] In a possible implementation, the peripheral side of the sealing silicone is provided with a plurality of convex rings, the plurality of convex rings are spaced apart along the height direction of the sealing silicone, and the convex rings are tightly against the inner wall of the oil storage tank.

[0018] In a possible implementation manner, the housing has a perspective window located at the oil cup.

[0019] The aerosol generating device is provided according to the present disclosure, including a shell, a sealing seat, a bracket, an atomizing module and an oil cup, wherein two ends of the shell are respectively provided with an air inlet hole and a cigarette holder, the cigarette holder has an air outlet channel connected with the outside, the oil cup is embedded in the shell and is located at one end of the cigarette holder, the sealing seat is sealed at a port of the oil cup away from the cigarette holder, the sealing seat has a ventilation groove, the atomizing module is fixedly mounted on the sealing seat and is located in the oil cup, the air outlet end of the atomizing module is connected with the air outlet channel, the bracket is fixed on a side of the sealing seat away from the atomizing module, the bracket is provided with an oil storage tank, the inner side wall of the oil storage tank has a ventilation channel, wherein the ventilation channel is respectively connected with the ventilation groove and the air inlet hole to form a ventilation air path, when the smoke oil in the oil cup is reduced to form a negative pressure, external air can be introduced through ventilation to balance the air pressure inside and outside the oil cup, thereby ensuring sufficient liquid supply to the atomizing module, and the smoke liquid that penetrates into the ventilation channel through the ventilation groove can be stored in the oil storage tank to avoid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. In addition, in the drawings, the same parts are marked with the same reference numerals, and the drawings are not drawn according to the actual scale.

[0021] Figure 1 A schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present disclosure;

[0022] Figure 2 A schematic diagram of the structure of the aerosol generating device provided in an embodiment of the present disclosure in a decomposed state;

[0023] Figure 3 A front cross-sectional view of an aerosol generating device provided in an embodiment of the present disclosure;

[0024] Figure 4 A side cross-sectional view of an aerosol generating device provided in an embodiment of the present disclosure;

[0025] Figure 5 A partial cross-sectional view of a bracket provided according to an embodiment of the present disclosure.

[0026] Description of reference numerals:

[0027] 100. Aerosol generating device;

[0028] 1. Shell; 11. Air outlet; 12. Air inlet; 13. Cigarette holder; 14. Perspective window;

[0029] 2. Oil cup;

[0030] 3. Sealing seat; 31. Ventilation groove;

[0031] 4. Atomization module;

[0032] 5. Bracket; 51. Oil storage tank; 52. Ventilation channel; 53. First tank section; 54. Second tank section; 55. Drainage channel;

[0033] 6. Sealing silicone; 61. Convex ring;

[0034] 7. Sealing member; 71. Cover cap; 72. Rod body; 73. Air guide channel. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0039] It should be noted that if 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 a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0040] See also Figure 1 to Figure 4 , the aerosol generating device provided in this embodiment is now described. The aerosol generating device 100 in this embodiment includes a housing 1, an oil cup 2, a sealing seat 3, a bracket 5 and an atomization module 4. An air inlet 12 and a mouthpiece 13 are respectively provided at both ends of the housing 1, and the mouthpiece 13 has an air outlet channel 11 connected to the outside. The end of the housing 1 with the mouthpiece 13 is the top end of the housing 1, and the opposite end is the bottom end of the housing 1, that is, the air inlet 12 is provided at the bottom end of the housing 1. The oil cup 2 is blow-molded by transparent, food-grade safety plastic. The oil cup 2 is fixed in the housing 1 and is located at one end of the mouthpiece 13. The sealing seat 3 is capped at the port of the oil cup 2 away from the mouthpiece 13. The sealing seat 3 has a ventilation groove 31, and the ventilation groove 31 passes through from the upper surface of the sealing seat 3 to the lower surface of the sealing seat 3 along the height direction of the sealing seat 3. The bracket 5 is fixed on the side of the sealing seat 3 away from the atomization module 4. The bracket 5 is provided with an oil storage tank 51, which is located directly below the ventilation tank 31, wherein the inner side wall of the oil storage tank 51 is provided with a ventilation channel 52, and the two ends of the ventilation channel 52 are respectively connected with the air inlet 12 and the ventilation tank 31. Here, the bracket 5 is provided with an oil storage tank 51, and the ventilation channel 52 is provided on the oil storage tank 51, and the sealing seat 3 is provided with a ventilation tank 31, one end of the ventilation tank 31 is connected with the oil cup 2, and the other end of the ventilation tank 31 is connected with the ventilation channel 52, and the bottom end of the housing 1 The air inlet hole 12 and the ventilation channel 52 are respectively connected with the ventilation tank 31 and the air inlet hole 12 to form a ventilation air path. When the smoke oil in the oil cup 2 is reduced and negative pressure is formed, external air can be introduced through the ventilation circuit to balance the air pressure inside and outside the oil cup 2, thereby ensuring sufficient liquid supply to the atomization module 4, and the smoke liquid that penetrates into the ventilation channel 52 through the ventilation tank 31 can be stored in the oil storage tank 51 to avoid leakage.

[0041] In a possible implementation, Figure 4As shown, a sealing silicone 6 is provided at one end of the oil storage tank 51 near the oil cup 2, and there is a gap between the ventilation channel 52 and the sealing silicone 6. A sealing silicone 6 is provided at one end of the oil storage tank 51 located at the sealing seat 3. The sealing silicone 6 is an elastic deformable part. When the sealing silicone 6 is inserted into the ventilation channel 52, the inner side of the sealing silicone 6 is tightly against the inner side wall of the ventilation channel 52. However, the sealing silicone 6 does not completely block or does not block the ventilation channel 52. There is a gap between the sealing silicone 6 and the ventilation channel 52, so that the ventilation channel 52 is in a conducting state and the gas can flow freely. The sealing silicone 6 is embedded at one end of the oil storage tank 51 located at the oil cup 2, which can further reduce the gap between the oil storage tank 51 and the sealing seat 3, and prevent a large amount of smoke oil from pouring into the oil storage tank 51.

[0042] In the present embodiment, there is a gap between the oil storage tank 51 and the sealing silicone 6, which is a part of the ventilation channel 52, and can allow external gas to enter the oil cup 2 when negative pressure occurs in the oil cup 2, so that the air pressure at various locations of the aerosol generating device 100 is balanced, thereby ensuring the atomization effect. In addition, even in a high temperature environment, since the gap between the oil storage tank 51 and the sealing silicone 6 is small, the risk of oil leakage is small. Even if a small amount of smoke oil penetrates into the gap, when negative pressure occurs in the oil cup 2, the smoke oil suspended in the gap will flow back to the smoke oil in the direction of gas flow. It should be noted here that when negative pressure occurs in the oil cup 2, the specific flow direction of the gas is: air inlet 12 → ventilation channel 52 → ventilation tank 31 → oil cup 2.

[0043] Specifically, the outer side of the sealing silicone 6 has a plurality of convex rings 61, which are spaced apart along the height direction of the sealing silicone 6, and each convex ring 61 is in a crest shape. The sealing silicone 6 is spaced apart with a plurality of convex rings 61 arranged in a crest shape, which increases the elastic space of the sealing silicone 6, facilitates the elastic deformation of the sealing silicone 6 and embeds it into the ventilation channel 52, and the relative force between the sealing silicone 6 and the ventilation channel 52 is small, which prolongs the elastic fatigue time of the sealing silicone 6, and can achieve a long-term, continuous and stable sealing effect.

[0044] In a possible implementation, Figure 4As shown, the bracket 5 is provided with a drainage channel 55 at one end of the oil cup 2, and the two ends of the drainage channel 55 are respectively connected to the oil storage tank 51 and the ventilation tank 31, and the drainage channel 55 and the oil storage tank 51 form a step shape. The sealing silicone 6 is inserted into the oil storage tank 51, and the upper surface of the sealing silicone 6 is in contact with the step surface. The bracket 5 forms an elongated ventilation channel 52 on the oil storage tank 51. There are two ventilation channels 52, and the two ventilation channels 52 are evenly distributed on the inner side wall of the ventilation channel 52. The end of the oil storage tank 51 close to the air inlet 12 also has an air guide channel 73 that runs through the bottom of the oil storage tank. There is one air guide channel 73, and one air guide channel 73 is located in the middle of the bottom of the oil storage tank, forming "middle air intake, two-side ventilation", wherein the cross-sectional area of ​​the air guide channel 73 is much larger than the cross-sectional area of ​​a single ventilation channel 52, and is at least the sum of the cross-sectional areas of three ventilation channels 52.

[0045] See also Figure 5 , the ventilation channel 52 includes a first groove section 53 and a second groove section 54. The first groove section 53 is formed at one end of the drainage channel 55 away from the oil cup 2 and is located above the sealing silicone 6. The first groove section 53 extends outward toward the peripheral side of the drainage channel 55. The second groove section 54 is arranged on the inner side wall of the oil storage tank 51 and extends along the height direction of the oil storage tank 51. One end of the second groove section 54 is connected to the second groove section 54. One end of the first groove section 53 is exposed to the side of the drainage channel 55 and is connected to the ventilation groove 31. The depth of the first groove section 53 and the second groove section 54 is 0.2mm-0.5mm. The sealing silicone 6 is located at the connection between the oil storage tank 51 and the guide flow channel 55. There is a gap between the second groove section 54 and the sealing silicone 6. When negative pressure is formed in the oil cup 2, external air can enter the oil cup 2 through the negative pressure to introduce external air, so that the internal and external air pressures of the oil cup 2 are balanced, eliminating the risk of core sticking. Since the sealing seat 3 is provided with a ventilation groove 31 with a diameter of about 0.6 mm, and there is also a gap between the oil storage tank 51 and the sealing silica gel 6, when the aerosol generating device 100 is placed, the smoke oil in the oil cup 2 will penetrate downward under gravity, and small particles of smoke oil will be suspended in the ventilation channel 52. When negative pressure appears in the oil cup 2, the external air will flow into the oil cup 2 through the ventilation channel 52. Since the ventilation channel 52 is a long and narrow channel, the smoke oil in the channel can flow back into the oil cup 2 under the action of the airflow.

[0046] Specifically, the cross-sectional area of ​​at least part of the second groove section 54 gradually decreases from the gas flow direction. That is, part of the second groove section 54 is in a contraction shape, which can gather the airflow during air intake and increase the flow rate, so that the airflow flowing in through the air intake hole 12 can quickly enter the oil cup 2, thereby balancing the air pressure in the two chambers.

[0047] Furthermore, the cross-sectional area of ​​the first slot section 53 is smaller than the cross-sectional area of ​​any point of the second slot section 54. Along the direction of gas entry, the cross-sectional area of ​​the second slot section 54 is larger than the cross-sectional area of ​​the first slot section 53. When the air passes through the second slot section 54 and the first slot section 53, the air velocity is accelerated, increasing the adsorption force at the outlet of the second slot section 54, thereby increasing the adsorption effect on the liquid in the ventilation channel 52, ensuring that the smoke oil in the ventilation channel 52 is completely and quickly sprayed into the oil cup 2 for re-atomization.

[0048] In one possible embodiment, Figure 4 As shown, the oil storage tank 51 has an opening at one end away from the oil cup 2. The sealing member 7 includes a cap 71 and a rod 72 arranged on the cap 71. The cap 71 covers the opening of the oil storage tank 51, and the rod 72 extends into the ventilation channel 52. The sealing member 7 has an air guide channel 73, which runs through the cap 71 to the free end of the rod 72. That is, the air vent runs through the entire sealing member 7 along the height direction of the sealing member 7, and the air guide channel 73 can be mutually connected with the air inlet 12. Among them, the sealing member 7 blocks one end of the oil storage tank 51, and the rod 72 is embedded in the oil storage tank 51, so that the oil storage tank 51 can accommodate the smoke oil flowing out of the oil cup 2. Since the cap 71 of the sealing member 7 and the opening are interference fit, the two structures are well sealed to prevent the smoke oil in the oil storage tank 51 from leaking out.

[0049] In one possible embodiment, Figure 1 As shown, the housing 1 has a perspective window 14 at the oil cup 2. It can be understood that the housing 1 is transparent at the position of the oil cup 2. Specifically, the housing 1 itself is completely made of transparent material or partially made of light-transmitting material, that is, the upper half of the housing 1 can be made of transparent plastic or transparent glass, or a through hole can be opened on the surface of the housing 1, and a transparent plastic plate or a transparent glass plate can be installed and connected to the through hole, so that a transparent oil bin is formed, and the user can observe the remaining condition of the oil in the oil cup 2.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0051] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An aerosol generating device, characterized in that: include: A shell, wherein two ends of the shell are respectively provided with an air inlet and a cigarette holder, and the cigarette holder has an air outlet channel connected to the outside; An oil cup, which is embedded in the shell and located at one end of the cigarette holder; A sealing seat, the sealing seat is sealed at a port of the oil cup away from the cigarette holder, and the sealing seat has a ventilation groove; an atomization module, the atomization module is fixedly mounted on the sealing seat and is located in the oil cup, and an air outlet end of the atomization module is communicated with the air outlet channel; as well as The bracket is fixed on a side of the sealing seat away from the atomization module, the bracket is provided with an oil storage tank, the inner side wall of the oil storage tank has a ventilation channel connected to the ventilation groove, and one end of the ventilation channel is connected to the air inlet.

2. The aerosol generating device according to claim 1, characterized in that: One end of the oil storage tank close to the sealing seat is plugged with sealing silica gel, and a gap is provided between the ventilation channel and the sealing silica gel.

3. The aerosol generating device according to claim 2, characterized in that: There are two ventilation channels, which are evenly distributed on the two inner walls of the oil storage tank. The oil storage tank has an air guide channel at both ends which are connected to the ventilation channel and the air inlet hole respectively. The air guide channel is located in the middle of one end of the oil storage tank away from the atomization module.

4. The aerosol generating device according to any one of claims 2 to 3, characterized in that: The bracket is provided with a drainage channel at one end of the oil cup, and both ends of the drainage channel are respectively connected to the oil storage tank and the ventilation tank, and the drainage channel and the oil storage tank form a step shape.

5. The aerosol generating device according to claim 4, characterized in that: Each of the ventilation channels includes a first groove section extending from one end of the drainage channel close to the sealing silicone along the circumference of the drainage channel and a second groove section extending from one end of the first groove section along the height direction of the oil storage tank. The first groove section is located above the sealing silicone, and the free end of the first groove section is connected to the ventilation groove.

6. The aerosol generating device according to claim 5, characterized in that: The cross-sectional area of ​​at least a portion of the second slot section gradually decreases from the gas flow direction.

7. The aerosol generating device according to claim 6, characterized in that: The cross-sectional area of ​​the first slot segment is smaller than the cross-sectional area of ​​any point of the second slot segment.

8. The aerosol generating device according to claim 3, characterized in that: The oil storage tank has an opening at one end away from the oil cup, and the aerosol generating device also includes a sealing member sealing the opening, the rod of the sealing member extends into the oil storage tank, and the air guide channel is extended along the height direction of the sealing member.

9. The aerosol generating device according to claim 5, characterized in that: The peripheral side of the sealing silicone is provided with a plurality of convex rings, which are distributed at intervals along the height direction of the sealing silicone, and the convex rings are tightly against the inner wall of the oil storage tank.

10. The aerosol generating device according to claim 9, characterized in that: The shell is provided with a perspective window at the oil cup.

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