Ventilation structure and electronic atomization device thereof

Abstract

The utility model discloses a ventilation structure and an electronic atomization device thereof. The ventilation structure comprises an air inlet channel formed in a support assembly and a ventilation valve arranged at the opening, facing a liquid storage cup, of the air inlet channel. The two ends of the air inlet channel are communicated with the atomization cavity and the liquid storage cup respectively, the scavenging air valve is arranged at the opening, facing the liquid storage cup, of the air inlet channel, when air exchange is not conducted, the gravity of atomized liquid in the liquid storage cup presses the scavenging air valve to close the scavenging air valve, and when air exchange is conducted, consumption of the atomized liquid in the liquid storage cup is reduced due to work; the pressure in the liquid storage cup is reduced, the atmospheric pressure pushes the scavenging air valve open, air enters the liquid storage cup, the scavenging air valve is closed when the pressure reaches balance after the air enters the liquid storage cup, the scavenging air channel achieves scavenging in the shortest distance, the section of the scavenging air channel can be made to be large, the scavenging sensitivity is high, and the air supplementing effect is good. And timely ventilation is ensured, so that the defects of drying or pasting of the ceramic core and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of atomizers, in particular to a ventilation structure and an electronic atomization device thereof. Background Art

[0002] The electronic atomization device is a product that produces aerosol by heating the atomizing liquid through the heating element of the atomizer. Because it is easy to use and the taste can be changed by adjusting the atomizing liquid, it has been widely and rapidly promoted in the domestic and foreign markets in recent years.

[0003] The ventilation of the electronic atomization devices currently on the market needs to pass through a ventilation airway formed between the bracket assembly and the side wall of the sealing sleeve. The space of this airway is small, resulting in that when ventilation occurs, the air needs to push the atomized liquid in the airway to enter the liquid storage cup, resulting in poor ventilation sensitivity. Utility Model Content

[0004] The utility model aims to provide a ventilation structure and an electronic atomization device thereof, aiming to solve the technical problem of poor sensitivity of the ventilation structure of the electronic atomization device in the related art.

[0005] In order to solve the above problems, according to one aspect of the present application, an embodiment of the utility model provides a ventilation structure, which is applied to an electronic atomization device, wherein the electronic atomization device includes a liquid storage cup, a bracket assembly inserted in a port of the liquid storage cup, and a base that is buckled with the bracket assembly to form an atomization chamber, and the ventilation structure includes:

[0006] An air inlet channel is provided on the bracket assembly, and two ends of the air inlet channel are respectively connected to the atomization chamber and the liquid storage cup;

[0007] A sealing sleeve disposed on the bracket assembly;

[0008] A ventilation valve is arranged at the mouth of the air inlet passage facing the liquid storage cup and connected to the sealing sleeve, so as to open the air inlet passage when the negative pressure in the liquid storage cup is less than a preset value.

[0009] In some embodiments, the ventilation valve includes a mouth sealing piece buckled on the air inlet passage toward the liquid storage cup.

[0010] In some embodiments, a projection of the opening of the air inlet passage toward the liquid storage cup in the thickness direction of the blocking piece is located inside the blocking piece.

[0011] In some embodiments, the ventilation valve includes a tubular member inserted in the air inlet passage toward the mouth of the liquid storage cup and an air-guiding and liquid-isolating member inserted in the tubular member, the tubular member is connected to the sealing sleeve, and a blocking structure is provided on the tubular member away from the mouth of the liquid storage cup for blocking the air-guiding and liquid-isolating member from moving away from the liquid storage cup.

[0012] In some embodiments, the blocking structure is an annular ridge constructed on the inner wall of the tubular member, the inner diameter of the annular ridge is smaller than the outer diameter of the gas-guiding and liquid-isolating member; and / or the gas-guiding and liquid-isolating member is made of porous ceramic material.

[0013] In some embodiments, the base is provided with an air inlet hole that enables the side of the base away from the liquid storage cup to be connected to the atomization chamber, and the side of the base facing the bracket assembly is configured with a first annular protrusion surrounding the air inlet hole to form a liquid storage space between the inner wall of the base and the outer wall of the first annular protrusion; and / or, at least two electrodes connected to the atomization core are inserted on the base, and the electrodes extend from the atomization core to the side of the base away from the liquid storage cup, and the side of the base facing the bracket assembly is configured with a second annular protrusion surrounding the electrode to form a liquid storage space between the inner wall of the base and the outer wall of the second annular protrusion.

[0014] According to another aspect of the present application, an embodiment of the utility model also provides an electronic atomization device, which includes a liquid storage cup, a bracket assembly inserted into a port of the liquid storage cup, a base that is snapped together with the bracket assembly to form an atomization chamber, and a ventilation structure as described in any of the above items.

[0015] In some embodiments, an air outlet pipe having one end connected to the outside is constructed in the liquid storage cup, an air outlet channel having one end connected to the atomization chamber is constructed on the bracket assembly, and the other end of the air outlet pipe is plugged into the other end of the air outlet channel.

[0016] In some embodiments, the bracket assembly is configured with a liquid inlet channel whose two ends are respectively connected to the atomization chamber and the liquid storage cup, and the atomization chamber is provided with an atomization core that blocks the liquid inlet channel toward one end of the atomization chamber.

[0017] In some embodiments, the electronic atomization device further includes a battery cell, a control board, and at least two electrodes, and the battery cell and at least two electrodes are connected to the control board.

[0018] Compared with the prior art, the ventilation structure of the utility model has at least the following beneficial effects:

[0019] The utility model embodiment discloses a ventilation structure, which includes an air intake channel opened on the bracket assembly and a ventilation valve arranged at the air intake channel facing the mouth of the liquid storage cup; specifically, the utility model is connected with the atomizing chamber and the liquid storage cup through the two ends of the air intake channel respectively, and the ventilation valve is arranged at the mouth of the air intake channel facing the liquid storage cup. When ventilation is not performed, the gravity of the atomized liquid in the liquid storage cup presses on the ventilation valve to close the ventilation valve. When ventilation is performed, the atomized liquid in the liquid storage cup is consumed less due to work. , so that the pressure in the liquid storage cup is reduced, and the atmospheric pressure pushes open the ventilation valve, allowing air to enter the liquid storage cup. The pressure inside the liquid storage cup reaches equilibrium after the air enters, and the ventilation valve is closed. Therefore, the ventilation valve can open the air inlet channel when the negative pressure in the liquid storage cup is less than the preset value. The ventilation structure of the utility model enables the ventilation airway to achieve ventilation in the shortest distance, and the cross-section of the ventilation airway can be made relatively large. In addition, the ventilation sensitivity is high, the air replenishment effect is good, and timely ventilation is guaranteed, thereby avoiding defects such as drying or sticking of the ceramic core.

[0020] On the other hand, the electronic atomization device provided by the present invention is manufactured based on the above-mentioned ventilation structure. Its beneficial effects refer to the beneficial effects of the above-mentioned ventilation structure, which will not be described in detail here.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the exploded structure of the electronic atomization device provided in an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the exploded structure of the electronic atomization device provided by an embodiment of the utility model from another perspective;

[0025] Figure 3 A schematic diagram of the structure of the ventilation structure provided by an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of the exploded structure of another electronic atomization device provided in an embodiment of the utility model;

[0027] Figure 5A structural schematic diagram of another ventilation structure provided by an embodiment of the utility model;

[0028] Figure 6 for Figure 5 A schematic structural diagram of the sealing sleeve from another perspective.

[0029] Description of reference numerals:

[0030] 1. Liquid storage cup; 11. Air outlet pipe;

[0031] 2. Bracket assembly; 21. Air intake passage;

[0032] 3. Base; 31. Air inlet; 32. First annular protrusion; 33. Liquid storage space; 34. Second annular protrusion;

[0033] 4. Sealing sleeve; 41. Sealing piece; 42. Tubular member; 421. Annular convex edge; 43. Air guide and liquid isolation member;

[0034] 5. Atomizer core;

[0035] 6. Electrode. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0037] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the referred device or element must have a specific direction or position, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example 1

[0040] like Figure 1-6 As shown, the embodiment of the utility model provides a ventilation structure, which is applied to an electronic atomization device, the electronic atomization device comprises a liquid storage cup 1, a bracket assembly 2 inserted in a port of the liquid storage cup 1, and a base 3 buckled with the bracket assembly 2 to form an atomization chamber, the ventilation structure comprises:

[0041] An air inlet channel 21 is provided on the bracket assembly 2, and two ends of the air inlet channel 21 are respectively connected to the atomization chamber and the liquid storage cup 1;

[0042] A sealing sleeve 4 is arranged on the bracket assembly 2;

[0043] A ventilation valve is arranged at the mouth of the air inlet passage 21 facing the liquid storage cup 1 and connected to the sealing sleeve 4, so as to open the air inlet passage 21 when the negative pressure in the liquid storage cup 1 is less than a preset value.

[0044] In this embodiment, the ventilation structure includes an air inlet channel 21 opened on the bracket assembly 2 and a ventilation valve arranged at the air inlet channel 21 facing the mouth of the liquid storage cup 1; specifically, in this embodiment, the two ends of the air inlet channel 21 are respectively connected with the atomization chamber and the liquid storage cup 1, and the ventilation valve is arranged at the mouth of the air inlet channel 21 facing the liquid storage cup 1. When there is no ventilation, the gravity of the atomized liquid in the liquid storage cup 1 presses on the ventilation valve to close the ventilation valve. When ventilation is performed, when the atomized liquid in the liquid storage cup 1 is consumed and reduced due to work, The air in the liquid storage cup 1 is less, thereby reducing the pressure in the liquid storage cup 1, and the atmospheric pressure pushes open the ventilation valve, allowing air to enter the liquid storage cup 1. The pressure inside the liquid storage cup 1 reaches equilibrium after the air enters, and the ventilation valve is closed. Therefore, the ventilation valve can open the air inlet channel 21 when the negative pressure in the liquid storage cup 1 is less than the preset value. The ventilation structure of this embodiment enables the ventilation airway to achieve ventilation in the shortest distance, and the cross-section of the ventilation airway can be made relatively large, and the ventilation sensitivity is high, ensuring timely ventilation, thereby avoiding defects such as drying or sticking of the ceramic core.

[0045] In some embodiments, the ventilation valve includes a mouth sealing piece 41 buckled on the air inlet passage 21 toward the liquid storage cup 1 .

[0046] In this embodiment, the air inlet channel 21 is blocked toward the mouth of the liquid storage cup 1 by a sealing piece 41 connected to the sealing sleeve 4. When there is no ventilation, the gravity of the atomized liquid in the liquid storage cup 1 presses on the ventilation valve to close the sealing piece 41. During ventilation, when the atomized liquid in the liquid storage cup 1 is consumed less due to work, the pressure in the liquid storage cup 1 is reduced, and the atmospheric pressure pushes open the sealing piece 41, allowing air to enter the liquid storage cup 1. The pressure inside the liquid storage cup 1 reaches equilibrium after the air enters, and the sealing piece 41 is closed. Therefore, the sealing piece 41 can open the air inlet channel 21 when the negative pressure in the liquid storage cup 1 is less than a preset value. The ventilation structure of this embodiment enables the ventilation airway to achieve ventilation in the shortest distance, and the cross-section of the ventilation airway can be made relatively large, and the ventilation sensitivity is high, ensuring timely ventilation, thereby avoiding defects such as drying or sticking of the ceramic core.

[0047] In some embodiments, a projection of the opening of the air inlet channel 21 facing the liquid storage cup 1 in the thickness direction of the blocking piece 41 is located inside the blocking piece 41 .

[0048] In this embodiment, the projection of the opening of the air inlet channel 21 toward the liquid storage cup 1 in the thickness direction of the blocking piece 41 is located inside the blocking piece 41, ensuring that the blocking piece 41 can completely cover the opening of the air inlet channel 21 toward the liquid storage cup 1 to prevent leakage.

[0049] In some embodiments, the ventilation valve includes a tubular member 42 inserted in the air inlet channel 21 toward the mouth of the liquid storage cup 1 and an air-guiding and liquid-isolating member 43 inserted in the tubular member 42, the tubular member 42 is connected to the sealing sleeve 4, and the tubular member 42 is provided with a blocking structure away from the mouth of the liquid storage cup 1 for blocking the air-guiding and liquid-isolating member 43 from moving away from the liquid storage cup 1.

[0050] In the present embodiment, a tubular member 42 connected to the sealing sleeve 4 is inserted into the mouth of the air inlet passage 21 toward the liquid storage cup 1, an air-guiding liquid-isolating member 43 is inserted into the tubular member 42, and a blocking structure for blocking the air-guiding liquid-isolating member 43 from moving away from the liquid storage cup 1 is provided at the mouth of the tubular member 42 away from the liquid storage cup 1, so as to prevent the air-guiding liquid-isolating member 43 from being sucked into the atomization chamber and causing liquid leakage. In the present embodiment, when ventilating, when the atomized liquid in the liquid storage cup 1 is consumed less due to work, the pressure in the liquid storage cup 1 is reduced, and the atmosphere passes through the air-guiding liquid-isolating member 43, so that air enters the liquid storage cup 1. The pressure inside the liquid storage cup 1 reaches equilibrium after the air enters. The ventilation structure of the present embodiment enables the ventilation airway to achieve ventilation at the shortest distance, and the cross-section of the ventilation airway can be made relatively large, and the ventilation sensitivity is high, so as to ensure timely ventilation, thereby avoiding defects such as drying or sticking of the ceramic core.

[0051] In some embodiments, the blocking structure is an annular ridge 421 constructed on the inner wall of the tubular member 42 , and the inner diameter of the annular ridge 421 is smaller than the outer diameter of the gas-guiding and liquid-isolating member 43 .

[0052] In this embodiment, an annular convex edge 421 is constructed on the inner wall of the tubular member 42. The inner diameter of the annular convex edge 421 is smaller than the outer diameter of the gas-guiding and liquid-isolating member 43 to prevent the gas-guiding and liquid-isolating member 43 from being sucked into the atomizing chamber and causing liquid leakage.

[0053] The outer diameter of the gas-guiding liquid barrier 43 is smaller than the inner diameter of the tubular member 42. When the pressure in the liquid storage cup 1 decreases, the atmospheric pressure pushes the gas-guiding liquid barrier 43 away for a certain distance. At this time, the gas-guiding liquid barrier 43 is still located in the tubular member 42, so that air can enter the liquid storage cup 1. On the one hand, it improves the ventilation sensitivity, and at the same time prevents the gas-guiding liquid barrier 43 from being completely pushed out of the tubular member 42.

[0054] In some embodiments, the gas-guiding liquid-sparing member 43 is made of a porous ceramic material, and the gas-guiding liquid-sparing member 43 uses a microporous structure of a porous ceramic material. When there is no ventilation, the gravity of the atomized liquid presses on the gas-guiding liquid-sparing member 43. When the atomized liquid passes through the micropores on the ventilation ceramic, due to the surface tension of the liquid, the atomized liquid cannot pass through the gas-guiding liquid-sparing member 43 and ensures that the atomized liquid does not leak out. During ventilation, when the atomized liquid in the liquid storage cup 1 is consumed and reduced due to the work of the atomizing core 5, the pressure in the liquid storage cup 1 is reduced, and the atmospheric pressure overcomes the surface tension of the atomized liquid in the gas-guiding liquid-sparing member 43, and air enters the liquid storage cup 1. The pressure inside the liquid storage cup 1 reaches equilibrium after the air enters, and the liquid in the micropores inside the gas-guiding liquid-sparing member 43 reaches parallelism due to surface tension.

[0055] In some embodiments, the base 3 is provided with an air inlet hole 31 that enables the side of the base 3 away from the liquid storage cup 1 to be connected to the atomization chamber, forming an air inlet path for the atomization chamber; the side of the base 3 facing the bracket assembly 2 is configured with a first annular protrusion 32 surrounding the air inlet hole 31 to form a liquid storage space 33 between the inner wall of the base 3 and the outer wall of the first annular protrusion 32; and / or, at least two electrodes 6 connected to the atomization core 5 are inserted on the base 3, and the electrode 6 extends from the atomization core 5 to the side of the base 3 away from the liquid storage cup 1, and the side of the base 3 facing the bracket assembly 2 is configured with a second annular protrusion 34 surrounding the electrode 6 to form a liquid storage space 33 between the inner wall of the base 3 and the outer wall of the second annular protrusion 34.

[0056] In this embodiment, the liquid storage space 33 can store the atomized liquid seeping out due to ventilation, ensuring that the seeping atomized liquid does not affect the ventilation function, thereby avoiding defects such as drying or sticking of the ceramic core.

[0057] Example 2

[0058] The embodiment of the utility model also provides an electronic atomization device, which includes a liquid storage cup 1, a bracket assembly 2 inserted into a port of the liquid storage cup 1, a base 3 snapped with the bracket assembly 2 to form an atomization chamber, and the ventilation structure of embodiment 1.

[0059] In some embodiments, an air outlet pipe 11 having one end connected to the outside is constructed in the liquid storage cup 1, and an air outlet channel having one end connected to the atomization chamber is constructed on the bracket assembly 2, and the other end of the air outlet pipe 11 is plugged into the other end of the air outlet channel to form an air outlet path of the atomization chamber.

[0060] In some embodiments, the bracket assembly 2 is constructed with a liquid inlet channel whose two ends are respectively connected to the atomization chamber and the liquid storage cup 1, and the atomization chamber is provided with an atomization core 5 that blocks the liquid inlet channel toward one end of the atomization chamber to form a liquid inlet path.

[0061] In some embodiments, the electronic atomization device further includes a battery cell, a control board, and at least two electrodes 6, and the battery cell and at least two electrodes 6 are connected to the control board.

[0062] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous technical features can be freely combined and superimposed.

[0063] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A ventilation structure, applied to an electronic atomization device, the electronic atomization device comprising a liquid storage cup, a bracket assembly inserted into a port of the liquid storage cup, and a base that is buckled with the bracket assembly to form an atomization chamber, characterized in that: The ventilation structure comprises: An air inlet channel is provided on the bracket assembly, and two ends of the air inlet channel are respectively connected to the atomization chamber and the liquid storage cup; A sealing sleeve disposed on the bracket assembly; A ventilation valve is arranged at the mouth of the air inlet passage facing the liquid storage cup and connected to the sealing sleeve, so as to open the air inlet passage when the negative pressure in the liquid storage cup is less than a preset value.

2. The ventilation structure according to claim 1, characterized in that: The ventilation valve comprises a mouth sealing piece buckled on the air inlet passage and facing the liquid storage cup.

3. The ventilation structure according to claim 2, characterized in that: The projection of the mouth of the air inlet passage toward the liquid storage cup in the thickness direction of the blocking piece is located inside the blocking piece.

4. The ventilation structure according to claim 1, characterized in that: The ventilation valve also includes a tubular member inserted in the air inlet passage toward the mouth of the liquid storage cup and an air-guiding and liquid-isolating member inserted in the tubular member, the tubular member is connected to the sealing sleeve, and the tubular member away from the mouth of the liquid storage cup is provided with a blocking structure for blocking the air-guiding and liquid-isolating member from moving away from the liquid storage cup.

5. The ventilation structure according to claim 4, characterized in that: The blocking structure is an annular convex edge constructed on the inner wall of the tubular member, and the inner diameter of the annular convex edge is smaller than the outer diameter of the air-conducting and liquid-isolating member; and / or the air-conducting and liquid-isolating member is made of porous ceramic material.

6. The ventilation structure according to claim 1, characterized in that: The base is provided with an air inlet hole that enables the side of the base away from the liquid storage cup to be connected with the atomization chamber, and the side of the base facing the bracket assembly is configured with a first annular protrusion surrounding the air inlet hole to form a liquid storage space between the inner wall of the base and the outer wall of the first annular protrusion; and / or, at least two electrodes connected with the atomization core are inserted on the base, and the electrodes extend from the atomization core to the side of the base away from the liquid storage cup, and the side of the base facing the bracket assembly is configured with a second annular protrusion surrounding the electrodes to form a liquid storage space between the inner wall of the base and the outer wall of the second annular protrusion.

7. An electronic atomization device, characterized in that: The electronic atomization device includes a liquid storage cup, a bracket assembly inserted into a port of the liquid storage cup, a base that is snapped with the bracket assembly to form an atomization chamber, and the ventilation structure according to any one of claims 1-6.

8. The electronic atomization device according to claim 7, characterized in that: An air outlet pipe having one end connected to the outside is configured in the liquid storage cup, an air outlet channel having one end connected to the atomization chamber is configured on the bracket assembly, and the other end of the air outlet pipe is plugged into the other end of the air outlet channel.

9. The electronic atomization device according to claim 7, characterized in that: The bracket assembly is provided with a liquid inlet channel whose two ends are respectively connected with the atomizing chamber and the liquid storage cup, and the atomizing chamber is provided with an atomizing core which blocks the liquid inlet channel toward one end of the atomizing chamber.

10. The electronic atomization device according to claim 9, characterized in that: The electronic atomization device also includes a battery core, a control board and at least two electrodes, and the battery core and at least two electrodes are connected to the control board.

Images