Atomizer and electronic atomization device

Abstract

The utility model relates to an atomizer and an electronic atomization device. The atomizer comprises an inner pipe and an outer pipe located outside the inner pipe, a liquid storage cavity is formed between the inner pipe and the outer pipe, an airflow channel is formed in the inner pipe, and an adsorption part is arranged on the periphery of the inner pipe. Due to the fact that the adsorption part is arranged on the periphery of the inner tube, when the atomizer is subjected to a reliability test, the aerosol generating matrix on the periphery of the inner tube can be adsorbed, in addition, the adsorption part has an oil locking function, the aerosol generating matrix adsorbed into the adsorption part is not prone to being discharged into the inner tube, the situation that liquid is accumulated in the inner tube or leaked from the inner tube is reduced, and the reliability of the atomizer is improved. And the use experience of subsequent users is improved.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and particularly to an atomizer and an electronic atomization device. Background Art

[0002] An electronic atomization device is usually placed with the mouthpiece facing upward after manufacturing. The aerosol-forming substrate in the liquid storage tube will flow towards the heating element under the action of gravity. After the aerosol-forming substrate is atomized, it is discharged from the central tube in the liquid storage tube to the mouthpiece. However, since the electronic atomization device also needs to perform some environmental reliability tests, such as negative pressure and temperature shock tests, at this time, the electronic atomization device needs to be inverted so that the mouthpiece faces downward.

[0003] In the related art, the aerosol-forming substrate in the liquid storage tube of the electronic atomization device will be affected by negative pressure or thermal expansion and contraction of temperature, so that the aerosol-forming substrate is extruded out of the liquid storage tube. Since the mouthpiece of the electronic atomization device faces downward, the extruded aerosol-forming substrate will flow into the central tube in the liquid storage tube due to the action of gravity, resulting in liquid accumulation in the central tube or liquid leakage from the central tube when the mouthpiece is blocked by a silica gel plug, affecting the subsequent use experience of users. Summary of the Utility Model

[0004] Based on this, in view of the problem that when the mouthpiece of the electronic atomization device faces downward, the aerosol-forming substrate extruded due to environmental reliability tests will cause liquid accumulation in the central tube or liquid leakage from the central tube to the mouthpiece, it is necessary to provide an atomizer and an electronic atomization device that can reduce the liquid accumulation in the central tube or liquid leakage from the central tube to the mouthpiece caused by the aerosol-forming substrate extruded due to environmental reliability tests.

[0005] On the one hand, this application provides an atomizer, which includes an inner tube and an outer tube located outside the inner tube. A liquid storage cavity is formed between the inner tube and the outer tube, an air flow channel is formed inside the inner tube, and an adsorbent is provided on the outer periphery of the inner tube.

[0006] In one embodiment, the adsorbent is arranged around the outer periphery of the inner tube.

[0007] In one embodiment, the adsorbent is composed of two or more materials.

[0008] In one embodiment, one end of the inner tube forms an inlet of the air flow channel. The atomizer further includes a heating top cover that cooperates with the inner tube and the outer tube. The heating top cover has a liquid guiding channel, and the liquid guiding channel communicates the adsorbent with the inlet.

[0009] In one embodiment, the number of liquid guiding channels is multiple, and all the liquid guiding channels are arranged at intervals around the center of the inlet.

[0010] In one embodiment, the width dimension of each liquid guiding channel gradually decreases away from the center of the inlet.

[0011] In one embodiment, the atomizer further includes an atomization chamber formed on the side of the heating top cover facing away from the inner tube, and the atomization chamber is in communication with the liquid guiding channel.

[0012] In one embodiment, a concave cavity is formed on the side of the heating top cover facing the inner tube. One end of the inner tube extends into the concave cavity, and a receiving cavity is defined between the inner tube and the cavity wall of the concave cavity. The adsorption member is disposed in the receiving cavity.

[0013] In one embodiment, a mating port is formed between the cavity opening of the concave cavity and the inner tube, and the mating port is isolated from the liquid storage cavity by a second sealing member.

[0014] On the other hand, the present application further provides an electronic atomization device including the atomizer in any of the above embodiments.

[0015] In the above atomizer and electronic atomization device, since the adsorption member is provided on the outer periphery of the inner tube, it can adsorb the aerosol generating matrix on the outer periphery of the inner tube when the atomizer is subjected to a reliability test. In addition, the adsorption member also has an oil locking function, and the aerosol generating matrix adsorbed into the adsorption member is not easily discharged back into the inner tube. Therefore, the liquid accumulation or liquid leakage in the inner tube is reduced, improving the subsequent user experience. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the atomizer in one or more embodiments of the present application.

[0017] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of the atomizer shown.

[0018] Figure 3 is Figure 1 a schematic structural diagram of a part of the atomizer shown.

[0019] Figure 4 is Figure 3 a schematic structural diagram of a part of the atomizer shown with the adsorption member removed.

[0020] Figure 5 is Figure 1 a schematic structural diagram of the heating top cover shown.

[0021] Description of the Reference Numerals:

[0022] Atomizer 100, liquid storage chamber 10, atomization component 20, atomization core 21, heating top cover 22, liquid inlet channel 221, liquid guiding channel 222, concave cavity 223, accommodating cavity 224, cylinder structure 225, communication hole 226, heating base 23, air exchange channel 231, air inlet hole 232, atomization cavity 24, first seal 25, inner tube 30, air flow channel 31, inlet 311, outer tube 40, adsorption member 50, second seal 60. Detailed implementation manners

[0023] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0025] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plural", the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0026] In the present application, unless otherwise clearly specified and limited, if there are terms such as "installation", "connection", "connection", "fixation", etc., these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0028] Figure 1 The structural schematic diagram of the atomizer in an embodiment of the present application is shown. Figure 2 is shown Figure 1 The cross-sectional structural schematic diagram of the atomizer shown.

[0029] Refer to Figure 1 and Figure 2 In an embodiment of the present application, the atomizer 100 provided is used to atomize the aerosol-generating matrix to form an aerosol for the user to inhale. The matrix to be atomized can be a liquid matrix such as a liquid medicine or a liquid of plant leaves. The atomizer 100 can atomize the aerosol-generating matrix in ways such as resistive heating atomization, infrared heating atomization, microwave heating atomization, electromagnetic heating atomization, etc. The atomizer 100 of the present application is applied to an electronic atomization device, and the electronic atomization device may further include a power supply component for supplying power to the atomizer 100 and controlling the operation of the atomizer 100 so that the atomizer 100 can atomize the aerosol-generating matrix to form an aerosol.

[0030] The atomizer 100 includes a liquid storage cavity 10 and an atomization component 20. The liquid storage cavity 10 is used to store the aerosol-generating matrix, and the atomization component 20 can be located at one end of the liquid storage cavity 10 and is a component for atomizing the aerosol-generating matrix.

[0031] Specifically, the atomizer 100 further includes an inner tube 30 and an outer tube 40. The outer tube 40 is located outside the inner tube 30, and a liquid storage cavity 10 is formed between the inner tube 30 and the outer tube 40. The inner tube 30 can also be called a central tube, and the outer tube 40 can also be called a liquid storage tube. The outer tube 40 can be sleeved outside the inner tube 30. An air flow channel 31 is formed inside the inner tube 30, and the outer tube 40 and the inner tube 30 can be connected at one end far from the atomization component 20 to form a mouthpiece.

[0032] Specifically, the atomization component 20 can include an atomization core 21, a heating top cover 22, a heating base 23, a first seal 25, etc. The atomization core 21 is communicated with the liquid storage cavity 10, and the atomization core 21 can atomize the aerosol-generating matrix from the liquid storage cavity 10 to generate an aerosol. In the implementation manner of the present application, the atomization core 21 can be specifically disposed in an atomization cavity 24 jointly formed by the heating top cover 22 and the heating base 23.

[0033] The heating top cover 22 has a liquid inlet channel 221, and the liquid inlet channel 221 communicates the atomization core 21 with the liquid storage cavity 10. The interior of the heating base 23 has a ventilation channel 231. One end of the ventilation channel 231 communicates with the liquid storage cavity 10 through the liquid inlet channel 221, and the other end communicates with the outside atmosphere. Specifically, the ventilation channel 231 can communicate with the outside atmosphere through an air inlet hole 232 opened on the heating base 23. The air inlet hole 232 can not only communicate the ventilation channel 231, but also communicate with the atomization cavity 24. The atomization cavity 24 communicates with an air flow channel 31 inside the inner tube 30, so that the aerosol generated by the atomization of the aerosol-forming substrate by the atomization core 21 follows the air flow and is discharged into the air flow channel 31, and then is inhaled by the user from the mouthpiece.

[0034] When the air pressure in the liquid storage cavity 10 is unbalanced, the outside air enters the liquid storage cavity 10 through the ventilation channel 231 to balance the air pressure in the liquid storage cavity 10. For example, when the user sucks the electronic atomization device, a negative pressure is generated in the atomization cavity 24 where the atomization core 21 is located, and the atomization core 21 is also communicated with the liquid storage cavity 10 through the liquid inlet channel 221. Therefore, the aerosol-forming substrate enters the liquid inlet channel 221 under the action of the negative pressure and is then atomized by the atomization core 21. Since the aerosol-forming substrate in the liquid storage cavity 10 is consumed, a negative pressure is generated in the liquid storage cavity 10, and the outside air enters the liquid storage cavity 10 through the ventilation channel 231 to balance the pressure in the liquid storage cavity 10.

[0035] In an embodiment of the present application, a suction attachment 50 is further provided on the outer periphery of the inner tube 30.

[0036] The outer periphery of the inner tube 30 refers to the outside of the outer peripheral wall of the inner tube 30. The suction attachment 50 can absorb liquid, and the substances adsorbed by the suction attachment 50 are not limited to the aerosol-forming substrate, but can also be condensate and the like.

[0037] In the atomizer 100 of the embodiment of the present application, since the suction attachment 50 is provided on the outer periphery of the inner tube 30, it can adsorb the aerosol-forming substrate on the outer periphery of the inner tube 30 when the atomizer 100 is subjected to a reliability test. In addition, the suction attachment 50 also has an oil locking function, and the aerosol-forming substrate adsorbed into the suction attachment 50 is not easily discharged back into the inner tube 30. Therefore, the liquid accumulation or liquid leakage from the inner tube 30 is reduced, and the subsequent user experience is improved.

[0038] Of course, the function of the atomizer 100 in the embodiment of the present application should not be limited to adsorbing the aerosol-forming substrate during the reliability test, but can also be used to adsorb the aerosol-forming substrate on the outer periphery of the inner tube 30 in other cases.

[0039] Specifically, the adsorbent member 50 can be at least one of integral cotton or polymer cotton, or can be other components with an adsorption function, or can be composed of two or more materials. For example, the adsorbent member 50 is composed of one layer of integral cotton plus one layer of polymer cotton, or the adsorbent member 50 is composed of two layers of integral cotton plus one layer of polymer cotton, or the adsorbent member 50 is composed of integral cotton, polymer cotton, and other materials with an adsorption function. The embodiments of the present invention do not limit this, and can be arbitrarily combined in actual products as long as effective adsorption can be achieved.

[0040] Among them, the polymer cotton has the advantages of fast oil absorption and large oil absorption capacity, which can improve the adsorption capacity, while the integral cotton has the advantages of not being easily deformed and having strong durability, and has a long service life.

[0041] In some embodiments, the adsorbent member 50 is disposed around the outer periphery of the inner tube 30. In this way, the adsorbent member 50 can adsorb any aerosol-forming substrate in the circumferential direction of the inner tube 30, improving the comprehensiveness and reliability of adsorption.

[0042] Specifically, the adsorbent member 50 can be a ring-shaped integral sleeved on the outer periphery of the inner tube 30. Of course, the adsorbent member 50 can also be formed by splicing multiple components into a ring-shaped sleeved on the outer periphery of the inner tube 30. For example, the adsorbent member 50 can be formed by splicing two semi-circular structures. In addition, the inner peripheral wall of the adsorbent member 50 can be attached to the outer peripheral wall of the inner tube 30.

[0043] Refer to Figures 2 to 5 , in the embodiment of the present application, one end of the inner tube 30 forms an inlet 311 of the air flow channel 31, and the atomizer 100 further includes a heating top cover 22 that cooperates with the inner tube 30 and the outer tube 40. The heating top cover 22 has a liquid guiding channel 222, and the liquid guiding channel 222 communicates the adsorbent member 50 with the inlet 311.

[0044] Due to the provision of the liquid guiding channel 222, the liquid guiding channel 222 can guide the aerosol-forming substrate flowing to the inlet 311 of the inner tube 30 to the adsorbent member 50, thereby adsorbing the aerosol-forming substrate. Therefore, by providing the liquid guiding channel 222, the reliability of the adsorbent member 50 to adsorb the aerosol-forming substrate is improved, and further, the liquid accumulation in the inner tube 30 or the liquid leakage from the inner tube 30 is reduced.

[0045] Specifically, the bottom of the inner tube 30 forms an inlet 311 of the air flow channel 31. The bottom of the inner tube 30 abuts against the heating top cover 22, and the liquid guiding channel 222 is configured as a liquid guiding hole formed on the heating top cover 22, and the liquid guiding hole communicates with the atomization chamber 24 below.

[0046] That is to say, the atomization chamber 24 is formed on the side of the heating top cover 22 facing away from the inner tube 30, and the atomization chamber 24 is in communication with the liquid guiding channel 222. Since the liquid guiding channel 222 can communicate with the atomization chamber 24, the aerosol-forming substrate flowing from the atomization chamber 24 to the inlet 311 of the inner tube 30 can be adsorbed by the adsorbing member 50 under the guidance of the liquid guiding channel 222, reducing the risk of the aerosol-forming substrate flowing from the atomization chamber 24 into the inner tube 30.

[0047] In some embodiments, the number of the liquid guiding channels 222 is plural, and all the liquid guiding channels 222 are arranged at intervals around the center of the inlet 311.

[0048] By arranging a plurality of liquid guiding channels 222 at intervals around the center of the inlet 311, the aerosol-forming substrate can be adsorbed comprehensively and evenly in the circumferential direction of the inlet 311.

[0049] For example, the number of the liquid guiding channels 222 is 6, and the 6 liquid guiding channels 222 are arranged at equal intervals around the center of the inlet 311. In other embodiments, the number of the liquid guiding channels 222 can also be 4, 5, 8, etc., without specific limitation.

[0050] In some embodiments, the width dimension of each liquid guiding channel 222 gradually decreases away from the center of the inlet 311.

[0051] By setting the width dimension of the liquid guiding channel 222 to gradually decrease away from the center of the inlet 311, the aerosol-forming substrate flowing towards the inlet 311 can be guided, so that the aerosol-forming substrate can be reliably adsorbed in the adsorbing member 50 after being guided in a certain amount.

[0052] For example, the shape of the liquid guiding channel 222 is trapezoidal, triangular, etc.

[0053] In the embodiment of the present application, a concave cavity 223 is formed on the side of the heating top cover 22 facing the inner tube 30. One end of the inner tube 30 extends into the concave cavity 223, and a receiving cavity 224 is defined between the inner tube 30 and the cavity wall of the concave cavity 223. The adsorbing member 50 is arranged in the receiving cavity 224.

[0054] By forming the concave cavity 223 on the heating top cover 22 to define the receiving cavity 224 with the inner tube 30, the method is simple, and the receiving cavity 224 is closer to the inlet 311 side of the inner tube 30, further reducing the risk of the aerosol-forming substrate flowing into the air flow channel 31. In addition, the height of the entire atomizer 100 will not be increased, which is beneficial to the miniaturization of the atomizer 100.

[0055] Specifically, the top side of the heating top cover 22 has a protruding cylindrical structure 225, and the concave cavity 223 is formed inside the cylindrical structure 225.

[0056] The liquid guiding channel 222 can be arranged on the bottom wall of the concave cavity 223. The bottom wall of the concave cavity 223 can also have a communication hole 226, and the communication hole 226 communicates with the inlet 311 of the inner tube 30 and the atomization cavity 24. In addition, the liquid guiding channel 222 can also communicate with the communication hole 226, and then communicate with the inlet 311 of the inner tube 30. In this way, the connection structure between the liquid guiding channel 222 and the inlet 311 can be simplified, and further the structure of the atomizer 100 can be simplified.

[0057] In addition, in order to facilitate one end of the inner tube 30 to extend into the concave cavity 223 to simplify the assembly difficulty, the radial dimension of the opening of the concave cavity 223 is larger than the radial dimension of the inner tube 30. Therefore, after the inner tube 30 extends into the concave cavity 223 to form the accommodating cavity 224, a fitting port is formed between the open end of the concave cavity 223, that is, the end for the inner tube 30 to extend into, and the inner tube 30. The fitting port is isolated from the liquid storage cavity 10 through the second sealing member 60.

[0058] By arranging the second sealing member 60 to seal the fitting port, it is possible to prevent the aerosol generating matrix in the liquid storage cavity 10 from entering the accommodating cavity 224 through the fitting port and then being adsorbed and wasted.

[0059] The second sealing member 60 can be a silica gel sealing member, specifically a silica gel sealing ring, sleeved on the air flow channel 31 and sealing one end of the inner tube 30 and the cylindrical structure 225.

[0060] In the embodiment of the present application, when the adsorbent 50 is arranged in the accommodating cavity 224, in order to fix the adsorbent 50 in the accommodating cavity 224, the second sealing member 60 can also abut against one end of the adsorbent 50, and the opposite end of the adsorbent 50 can abut against the bottom wall of the concave cavity 223. In this way, both opposite ends of the adsorbent 50 can be restricted by components and fixed in the accommodating cavity 224.

[0061] Based on the same inventive concept, the present application also provides an electronic atomization device, including the atomizer 100 in any of the above embodiments.

[0062] In the electronic atomization device according to the embodiment of the present application, since the adsorbent 50 is arranged on the outer periphery of the inner tube 30, it can adsorb the aerosol generating matrix on the outer periphery of the inner tube 30 when the atomizer 100 is subjected to a reliability test. In addition, the adsorbent 50 also has an oil locking function, and the aerosol generating matrix adsorbed into the adsorbent 50 is not easily discharged into the inner tube 30 again. Therefore, the liquid accumulation in the inner tube 30 or the liquid leakage from the inner tube 30 is reduced, and the subsequent user experience is improved.

[0063] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0064] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An atomizer, characterized in that: It comprises an inner tube and an outer tube located outside the inner tube, a liquid storage cavity is formed between the inner tube and the outer tube, an air flow channel is formed inside the inner tube, and an adsorption member is arranged on the outer periphery of the inner tube.

2. The atomizer according to claim 1, characterized in that The adsorption member is arranged around the outer circumference of the inner tube.

3. The atomizer according to claim 2, characterized in that The adsorbent is composed of two or more materials.

4. The atomizer according to claim 1, characterized in that One end of the inner tube forms the inlet of the airflow channel. The atomizer also includes a heating top cover matched with the inner tube and the outer tube. The heating top cover has a liquid guide channel, and the liquid guide channel connects the adsorbent and the inlet.

5. The atomizer according to claim 4, characterized in that There are multiple liquid-conducting channels, and all of the liquid-conducting channels are arranged around the center of the inlet and spaced apart from each other.

6. The atomizer according to claim 5, characterized in that The width of each of the liquid guiding channels gradually decreases away from the center of the inlet.

7. The atomizer according to claim 4, characterized in that The atomizer further comprises an atomizing chamber, which is formed on a side of the heating top cover away from the inner tube, and the atomizing chamber is communicated with the liquid guiding channel.

8. The atomizer according to claim 4, characterized in that A concave cavity is formed on one side of the heating top cover facing the inner tube, one end of the inner tube extends into the concave cavity and defines a containing cavity with the cavity wall of the concave cavity, and the adsorbent is arranged in the containing cavity.

9. The atomizer according to claim 8, characterized in that A matching opening is formed between the cavity opening of the concave cavity and the inner tube, and the matching opening is isolated from the liquid storage cavity by a second sealing member.

10. An electronic atomization device, characterized in that: The invention comprises an atomizer as claimed in any one of claims 1 to 9.

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