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 self-closing ventilation valve set arranged in 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 self-closing ventilation valve set is arranged in the air inlet channel, the self-closing ventilation valve set can open the air inlet channel when the negative pressure in the liquid storage cup is smaller than a preset value, and during ventilation, consumption of atomized liquid in the liquid storage cup is reduced due to work, so that the pressure in the liquid storage cup is reduced, and the atomization effect is improved. The self-closing scavenging air valve group is pushed open by atmospheric pressure, so that air enters the liquid storage cup, the self-closing scavenging air valve group 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 timely scavenging is guaranteed. Therefore, 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 self-closing ventilation valve group is arranged in the air intake passage, and the self-closing ventilation valve group can open the air intake passage when the negative pressure in the liquid storage cup is less than a preset value.

[0008] In some embodiments, an annular flange is provided in the air inlet passage, and the self-closing ventilation valve group includes a fixing ring, an elastic member and a sealing member, the fixing ring is provided in the air inlet passage and is located on the side of the annular flange facing the liquid storage cup, the sealing member is provided between the fixing ring and the annular flange, and the elastic member is clamped between the sealing member and the fixing ring.

[0009] In some embodiments, the outer diameter of the blocking member is greater than the inner diameter of the annular flange, and the outer diameter of the blocking member is smaller than the inner diameter of the air inlet passage.

[0010] In some embodiments, the blocking member has an insertion portion, the insertion portion is inserted into one end of the elastic member, and the other end of the elastic member is in contact with a side of the fixing ring facing the blocking member.

[0011] In some embodiments, a cartridge tube is disposed in the air inlet passage, and the self-closing ventilation valve group includes a one-way valve tube having an opening, and one end of the one-way valve tube away from the opening is plugged into the cartridge tube.

[0012] In some embodiments, the opening is a duckbill structure; and the one-way valve tube is made of silicone material.

[0013] In some embodiments, the base is provided with an air inlet hole that connects the side of the base away from the liquid storage cup 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.

[0014] In some embodiments, at least two electrodes connected to the atomizer core are inserted on the base, and the electrodes extend from the atomizer core to a side of the base away from the liquid storage cup. A second annular protrusion surrounding the electrode is constructed on a side of the base facing the bracket assembly to form a liquid storage space between the inner wall of the base and the outer wall of the second annular protrusion.

[0015] 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.

[0016] 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.

[0017] Compared with the prior art, the ventilation structure of the utility model has at least the following beneficial effects:

[0018] The embodiment of the utility model discloses a ventilation structure, which comprises an air intake channel opened on the bracket assembly and a self-closing ventilation valve group arranged in the air intake channel; 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 self-closing ventilation valve group is arranged at the mouth of the air intake channel facing the liquid storage cup. When there is no ventilation, the self-closing ventilation valve group can be automatically closed. During ventilation, when the atomized liquid in the liquid storage cup is consumed less due to work, the pressure in the liquid storage cup is reduced, and the atmospheric pressure pushes open the self-closing ventilation valve group, so that air enters the liquid storage cup. After the air enters, the pressure inside the liquid storage cup reaches equilibrium and the self-closing ventilation valve group is closed. Therefore, the self-closing ventilation valve group can open the air intake channel when the negative pressure in the liquid storage cup is less than a 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, and the ventilation sensitivity is high, so as to ensure timely ventilation, thereby avoiding defects such as drying or sticking of the ceramic core.

[0019] 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 can be found in the beneficial effects of the above-mentioned ventilation structure, which will not be elaborated here.

[0020] 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

[0021] 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.

[0022] Figure 1 A schematic diagram of the exploded structure of the electronic atomization device provided in an embodiment of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the bracket assembly;

[0024] Figure 3 for Figure 1 A cross-sectional view of the ventilation structure in FIG.

[0025] Figure 4 A schematic diagram of the exploded structure of another electronic atomization device provided in an embodiment of the utility model;

[0026] Figure 5A schematic diagram of the structure of the one-way valve tube provided by the embodiment of the utility model when it is opened;

[0027] Figure 6 A schematic diagram of the structure of the one-way valve tube when it is closed provided by an embodiment of the utility model;

[0028] Figure 7 for Figure 4 A schematic diagram of the structure of the bracket assembly;

[0029] Figure 8 for Figure 4 A cross-sectional view of the ventilation structure in FIG.

[0030] Fig. 9 A schematic structural diagram of a base of an electronic atomization device provided in an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1. Liquid storage cup; 11. Air outlet pipe;

[0033] 2. bracket assembly; 21. air inlet passage; 211. annular flange; 212. cartridge tube;

[0034] 3. Base; 31. Air inlet; 32. First annular protrusion; 33. Liquid storage space; 34. Second annular protrusion;

[0035] 41. fixing ring; 42. elastic member; 43. blocking member; 431. inserting part; 44. one-way valve tube; 441. opening;

[0036] 5. Atomizer core;

[0037] 6. Electrode. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] Example 1

[0042] like Figure 1-9 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:

[0043] 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;

[0044] The self-closing ventilation valve group is arranged in the air inlet channel 21 to open the air inlet channel 21 when the negative pressure in the liquid storage cup 1 is less than a preset value.

[0045] In the present embodiment, the ventilation structure includes an air intake channel 21 opened on the bracket assembly 2 and a self-closing ventilation valve group arranged in the air intake channel 21; specifically, the present embodiment is connected with the atomization chamber and the liquid storage cup 1 through the two ends of the air intake channel 21, and the self-closing ventilation valve group is arranged in the air intake channel 21. When there is no ventilation, the self-closing ventilation valve group can be automatically closed. 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 the self-closing ventilation valve group open, 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 self-closing ventilation valve group is closed. Therefore, the self-closing ventilation valve group can open the air intake channel 21 when the negative pressure in the liquid storage cup 1 is less than a preset value. The ventilation structure of the present 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.

[0046] In some embodiments, an annular flange 211 is provided in the air intake passage 21, and the self-closing ventilation valve group includes a fixing ring 41, an elastic member 42 and a sealing member 43. The fixing ring 41 is provided in the air intake passage 21 and is located on the side of the annular flange 211 facing the liquid storage cup 1. The sealing member 43 is provided between the fixing ring 41 and the annular flange 211, and the elastic member 42 is clamped between the sealing member 43 and the fixing ring 41.

[0047] In this embodiment, the elastic member 42 is clamped between the sealing member 43 and the fixing ring 41. When there is no ventilation, the elastic member 42 causes the sealing member 43 to seal the inner hole of the annular flange 211, thereby closing the air inlet channel 21. 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 member 43, allowing air to enter the liquid storage cup 1 through the inner hole of the annular flange 211, the elastic member 42 and the inner hole of the fixing ring 41. The sealing member 43 is closed because the pressure inside the liquid storage cup 1 reaches equilibrium after the air enters. Therefore, the sealing member 43 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. In addition, the ventilation sensitivity is high, ensuring timely ventilation, thereby avoiding defects such as drying or sticking of the ceramic core.

[0048] In some embodiments, the outer diameter of the blocking member 43 is greater than the inner diameter of the annular flange 211 , and the outer diameter of the blocking member 43 is smaller than the inner diameter of the air inlet passage 21 , ensuring that a passage is formed when the blocking member 43 is pushed open.

[0049] In some embodiments, the blocking member 43 has an insertion portion 431 inserted into one end of the elastic member 42 . The elastic member 42 may be a spring, and the other end of the elastic member 42 abuts against a side of the fixing ring 41 facing the blocking member 43 .

[0050] In some embodiments, a plug-in tube 212 is provided in the air inlet passage 21, and the self-closing ventilation valve assembly includes a one-way valve tube 44 with an opening 441. The one-way valve tube 44 is plugged into the plug-in tube 212 at one end away from the opening 441. When there is no ventilation, the opening 441 is automatically closed by the pressure of the atomized liquid, so that the air inlet passage 21 is closed. When ventilation is performed, the atomized liquid in the liquid storage cup 1 is consumed less due to work, thereby reducing the pressure in the liquid storage cup 1, and the atmospheric pressure pushes the atomized liquid in the liquid storage cup 1 to the bottom of the liquid storage cup 1. Opening 441 allows air to enter the liquid storage cup 1. The pressure inside the liquid storage cup 1 after the air enters reaches the opening 441 of the one-way valve tube 44 and is closed. Therefore, opening 441 of the one-way valve tube 44 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 of the ventilation airway at the shortest distance, and the cross-section of the ventilation airway can be made relatively large. In addition, the ventilation sensitivity is high, ensuring timely ventilation, thereby avoiding defects such as drying or sticking of the ceramic core.

[0051] In some embodiments, the opening 441 is a duckbill structure, and the one-way valve tube 44 works in a manner similar to a duckbill valve; the one-way valve tube 44 is made of silicone material to improve sealing performance.

[0052] In some embodiments, the base 3 is provided with an air inlet hole 31 that connects the side of the base 3 away from the liquid storage cup 1 with the atomization chamber, forming an air inlet path for the atomization chamber; the side of the base 3 facing the bracket assembly 2 is constructed 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.

[0053] 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.

[0054] In some embodiments, at least two electrodes 6 connected to the atomizer core 5 are inserted on the base 3, and the electrodes 6 extend from the atomizer core 5 to a side of the base 3 away from the liquid storage cup 1. A second annular protrusion 34 surrounding the electrode 6 is configured on a side of the base 3 facing the bracket assembly 2 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.

[0055] 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.

[0056] Example 2

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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 self-closing ventilation valve group is arranged in the air intake passage, and the self-closing ventilation valve group can open the air intake 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: An annular flange is arranged in the air intake passage, and the self-closing ventilation valve group includes a fixing ring, an elastic member and a sealing member. The fixing ring is arranged in the air intake passage and is located on the side of the annular flange facing the liquid storage cup. The sealing member is arranged between the fixing ring and the annular flange, and the elastic member is clamped between the sealing member and the fixing ring.

3. The ventilation structure according to claim 2, characterized in that: The outer diameter of the blocking member is larger than the inner diameter of the annular flange, and the outer diameter of the blocking member is smaller than the inner diameter of the air inlet passage.

4. The ventilation structure according to claim 2, characterized in that: The blocking member has an inserting portion, which is inserted into one end of the elastic member, and the other end of the elastic member is in contact with a side of the fixing ring facing the blocking member.

5. The ventilation structure according to claim 1, characterized in that: A plug-in tube is arranged in the air inlet passage, and the self-closing ventilation valve group comprises a one-way valve tube with an opening, and one end of the one-way valve tube away from the opening is plugged into the plug-in tube.

6. The ventilation structure according to claim 5, characterized in that: The opening is a duckbill structure; the one-way valve tube is made of silicone material.

7. 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.

8. The ventilation structure according to claim 1, characterized in that: At least two electrodes connected to the atomizer core are inserted on the base, and the electrodes extend from the atomizer core to a side of the base away from the liquid storage cup. A second annular protrusion surrounding the electrode is configured on a side of the base facing the bracket assembly to form a liquid storage space between the inner wall of the base and the outer wall of the second annular protrusion.

9. 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 1-8.

10. The electronic atomization device according to claim 9, 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.

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