Electronic atomization device

Abstract

The application discloses an electronic atomization device, comprising: a housing having a first end and a second end opposite to each other in its length direction, the first end being provided with a suction nozzle opening; an atomizing element for atomizing the liquid substrate to generate an aerosol; the atomizing chamber is used for providing an aerosol release space; the airflow sensor is used for sensing negative pressure generated in the atomization chamber; the sealing element is used for providing sealing between the two opposite sides of the airflow sensor, the sealing element defines a first cavity and a second cavity on the two opposite sides of the airflow sensor, the first cavity is in fluid communication with the atomization cavity, and the second cavity is used for communicating with external air; and the base is connected to the second end of the shell, a gap is formed between at least part of the base and the sealing piece so as to form a second cavity, and the sealing piece is provided with an air guide channel communicated with the first cavity and the second cavity. In this way, the electronic atomization device can be prevented from being automatically started in the transportation process.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an electronic atomization device. Background Art

[0002] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0003] Examples of such products are heating devices, which release compounds by heating rather than burning a material. For example, the material can be tobacco or other non-tobacco products, which may or may not contain nicotine. As an example, there are electronic vaporizers, which typically contain a liquid that is heated to vaporize it, thereby producing an inhalable aerosol.

[0004] Known electronic atomization devices are typically equipped with an airflow sensor having a first side and a second side, each airflow-isolated from the other. The first side communicates with the airflow channel through the electronic atomization device to sense the pressure within the channel during inhalation, while the second side communicates with the outside atmosphere to sense the outside atmospheric pressure. A signal to activate the electronic atomization device is generated when the difference between the pressure sensed on the first side and the outside atmospheric pressure sensed on the second side exceeds a preset threshold. During transportation of such electronic atomization devices, changes in external air pressure or vibrations may cause a pressure difference between the first and second sides of the airflow sensor, potentially causing the electronic atomization device to malfunction and activate unexpectedly during transportation. Utility Model Content

[0005] The present application provides an electronic atomization device to solve the technical problem of the electronic atomization device being mistakenly started in an unexpected state during transportation.

[0006] At least one embodiment of the present application provides an electronic atomization device, comprising:

[0007] The housing has a first end and a second end opposite to each other along its length, wherein the first end is provided with a nozzle; and a liquid storage cavity for storing a liquid matrix is ​​provided inside the housing;

[0008] a nebulizing element for atomizing a liquid matrix to generate an aerosol;

[0009] an atomization chamber, for providing a space for releasing the aerosol;

[0010] an airflow sensor, configured to sense the negative pressure generated in the atomization chamber;

[0011] a seal member for providing a seal between opposite sides of the airflow sensor, wherein the seal member defines a first chamber and a second chamber on opposite sides of the airflow sensor, wherein the first chamber is in fluid communication with the atomization chamber, and the second chamber is in fluid communication with external air; and

[0012] The base is connected to the second end of the shell, and a gap is formed between at least a part of the base and the sealing member to form the second chamber, and the sealing member is provided with an air guide channel connecting the first chamber and the second chamber.

[0013] In one embodiment, an air inlet is provided on the base or the shell, and the air inlet is used to provide an inlet for external air to enter the electronic atomization device, and the air inlet is connected to the second chamber.

[0014] In one embodiment, an air guide tube is provided in the air guide channel, and the air guide tube extends toward the air inlet and at least partially passes through the second chamber.

[0015] In one embodiment, the air guide tube has an air inlet end and an air outlet end, the air inlet end extends into the air inlet hole, and the air outlet end is in fluid communication with the first chamber.

[0016] In one embodiment, a gap is maintained between the air inlet end and the inner wall of the air inlet hole, and the gap is communicated with the second chamber.

[0017] In one embodiment, the air outlet extends into the air guiding channel and has an interference fit with the air guiding channel.

[0018] In one embodiment, a first through hole is formed in a wall of the air duct, and the first through hole is exposed to the second chamber.

[0019] In one embodiment, the air guide tube is a part of the base, and the air guide tube extends through the second chamber into the air guide channel and is interference-fitted with the air guide channel.

[0020] In one embodiment, a circuit board for mounting the airflow sensor is provided in the second chamber, the circuit board is provided with a second through hole, and the air guide tube passes through the second through hole.

[0021] In one embodiment, the sealing member is provided with a receiving chamber for receiving at least a portion of the airflow sensor, and a vent hole connecting the receiving chamber and the first chamber, the vent hole includes a first section and a second section, the second section is located between the first section and the receiving chamber, and the aperture of the first section is smaller than the aperture of the second section.

[0022] In one embodiment, the air guide channel includes a third section and a fourth section, the fourth section is located between the third section and the first chamber, and an inner diameter of the fourth section is greater than an inner diameter of the third section.

[0023] The electronic atomization device provided in the above embodiment can prevent external air from entering the second chamber through the gap between the shell and the base during transportation, resulting in an air pressure difference between the first chamber and the second chamber, and thereby preventing the airflow sensor from triggering the automatic start of the electronic atomization device under this air pressure difference, by arranging an air guide channel connecting the first chamber and the second chamber on the sealing member. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0025] Figure 1 A three-dimensional schematic diagram of an electronic atomization device provided in one embodiment of the present application in one direction;

[0026] Figure 2 for Figure 1 A schematic cross-sectional view of the electronic atomization device in one direction;

[0027] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle;

[0028] Figure 4 A cross-sectional schematic diagram of an air guide tube installed in an air guide channel provided in an embodiment of the present application;

[0029] Figure 5 A cross-sectional schematic diagram of an air guide tube provided in yet another embodiment of the present application being assembled in an air guide channel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or suggesting relative importance or implicitly indicating the quantity or order of the indicated technical features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement situation between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment that includes a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0032] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be one or more intermediate elements in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0034] An embodiment of the present application provides an electronic atomization device 100, which is used to atomize a liquid matrix stored therein to generate an aerosol that can be inhaled by a user, such as Figure 1 As shown, the electronic atomization device 100 includes a shell 10, which has a first end 11 and a second end 12 arranged opposite to each other along its length direction. The first end 11 is provided with a nozzle 111 for allowing aerosol to escape from the electronic atomization device 100, and the second end 12 is installed with a base 20, which is used to provide support for the components in the shell 10.

[0035] like Figure 2As shown, a liquid storage chamber 13 is provided in the shell 10, and a liquid storage part 14 is provided in the liquid storage chamber 13. The liquid storage part 14 is used to absorb and retain the liquid matrix stored in the liquid storage chamber 13. The liquid storage part 14 is formed with an axially extending through hole 141, and an atomization component is provided in the through hole 141. The atomization component includes a liquid guide part 15 and a heating element 16 combined with the liquid guide part 15. The liquid guide part 15 and the liquid storage part 14 are in contact with each other, and then the liquid storage part 14 can further transfer the liquid matrix stored therein to the liquid guide part 15. The heating element 16 on the liquid guide part 15 can heat and atomize the liquid matrix to generate an aerosol, and release the generated aerosol into the through hole 141, so that the through hole 141 can serve as an atomization chamber of the electronic atomization device 100 to provide an aerosol release space.

[0036] Both the liquid-conducting member 15 and the liquid-storing member 14 are made of a porous material, which can be any of cotton fibers, non-woven fabrics, fiberglass ropes, porous glass, or porous ceramics. Thus, the liquid-conducting member 15 and the liquid-storing member 14 can absorb or conduct liquid substrates through their internal microporous structures or voids. Accordingly, the heating element 16 can be incorporated into the liquid-conducting member 15 by printing, deposition, sintering, or physical assembly, or can be wound around the liquid-conducting member 15.

[0037] The liquid matrix may include a liquid containing a tobacco substance containing volatile tobacco flavor components, or a liquid containing a non-tobacco substance. The liquid matrix may include water, a medicinal solution, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, or a vitamin mixture. The fragrance may include, but is not limited to, betel nut extract, menthol, peppermint, spearmint oil, various fruity aroma components, etc. The flavoring agent may include ingredients that can provide a variety of aromas or flavors to the user. Based on the different properties of the liquid matrix, the electronic atomization device 100 can be used in different fields, such as medical treatment, electronic cigarettes, etc.

[0038] Please continue reading Figure 2 The electronic atomization device 100 further includes an airway tube 17, one end of which is connected to the mouthpiece 111, and the other end is inserted into the through hole 141 of the liquid storage component 14 to communicate with the atomization chamber, so that the aerosol generated after the atomization component is atomized can enter the airway tube 17 and be transmitted to the mouthpiece 111 by the airway tube 17. The user can inhale the aerosol when inhaling at the mouthpiece 111. Figure 2 The flow path R1 of the aerosol is shown in FIG.

[0039] The electronic atomization device 100 also includes a battery cell 18 and a main board (not shown). The main board is provided with a controller of the electronic atomization device 100. The battery cell 18 and the heating element 16 are electrically connected to the controller, so that the controller can control the battery cell 18 to provide the heating element 16 with the electrical energy required for heating and atomization.

[0040] In other embodiments, the atomization component may also include an ultrasonic atomization element, which atomizes the liquid matrix into an aerosol through high-frequency vibration. The atomization component may also be other components that can form an aerosol from the liquid matrix. This application does not impose specific restrictions on the type of atomization component.

[0041] Please continue reading Figure 2 The base 20 is formed with an air inlet 21 for allowing external air to enter the electronic atomization device 100. When the user draws air at the mouthpiece 111, negative pressure is generated inside the electronic atomization device 100. External air enters the electronic atomization device 100 through the air inlet 21 and is transmitted to the atomization chamber through the internal airflow channel of the electronic atomization device 100. The aerosol in the atomization chamber is then transmitted to the mouthpiece 111 through the airway tube 17. In some embodiments, the air inlet 21 may also be provided on the housing 10.

[0042] like Figure 2 and Figure 3 As shown, the electronic atomization device 100 also includes a seal 30 supported on the base 20. The seal 30 is made of any one of soft rubber materials such as silicone, rubber or latex. A receiving chamber 31 is formed on the seal 30. The receiving chamber 31 accommodates an airflow sensor 40. The airflow sensor 40 has two opposite sides. The seal 30 and the battery cell 18 define a first chamber 41 on one side of the airflow sensor 40. The seal 30 maintains a gap with the base 20 on the other side of the airflow sensor 40 to form a second chamber 42. The first chamber 41 is fluidically connected to the atomization chamber, and the second chamber 42 is used to be fluidically connected to the external air.

[0043] The airflow sensor 40 includes a first sensing surface (not shown) exposed in the first chamber 41, and a second sensing surface (not shown) exposed in the second chamber 42. When the user inhales at the mouthpiece 111, the atomization chamber generates negative pressure. Since the atomization chamber and the first chamber 41 are fluidically connected, the first chamber 41 also generates negative pressure, and the second chamber 42 is connected to the outside world. As a result, the pressures sensed by the first sensing surface and the second sensing surface of the airflow sensor 40 are different, so that an air pressure difference will be generated between the first sensing surface and the second sensing surface. When the air pressure difference is greater than a preset threshold, the airflow sensor 40 will generate a sensing signal, which will be sent to the controller. The controller can determine that the user has inhaled based on the sensing signal, and then control the battery cell 18 to provide the atomization component with the electrical energy required for atomization.

[0044] like Figure 3As shown, the seal 30 is provided with an air guide channel 70 connecting the first chamber 41 and the second chamber 42. During the transportation and storage of the electronic atomization device 100, the mouthpiece 111 and the air inlet 21 are usually sealed to prevent the liquid matrix inside from being in contact with air for a long time, which may cause the liquid matrix to deteriorate and affect the taste of the puff. In this embodiment, in order to save the manufacturing cost of the electronic atomization device 100, the airflow sensor 40 is arranged at the second end 12 of the shell 10, and the base 20 directly supports the seal 30. Therefore, during transportation, outside air may enter the second chamber 42 through the assembly gap between the shell 10 and the base 20. During transportation, due to changes in air pressure, there may be an air pressure difference between the second chamber 42 and the first chamber 41, which in turn causes a pressure difference between the first sensing surface and the second sensing surface of the airflow sensor 40, causing the electronic atomization device 100 to automatically start during transportation. By setting up an air guide channel 70 to connect the fluid of the first chamber 41 and the second chamber 42, the air pressure between the first chamber 41 and the second chamber 42 can be basically the same during transportation, so that there is no pressure difference or the pressure difference is very small between the first sensing surface and the second sensing surface of the airflow sensor 40, which can prevent the electronic atomization device 100 from automatically starting during transportation.

[0045] In some embodiments, continue to refer to Figure 3 The air guide channel 70 includes a third section 71 and a fourth section 72 arranged in sequence along the longitudinal direction. The fourth section 72 is located between the third section 71 and the first chamber 41, that is, the fourth section 72 is closer to the first chamber 41 relative to the third section 71, and the inner diameter of the fourth section 72 is larger than the inner diameter of the third section 71 to facilitate the processing of the air guide channel 70.

[0046] In some embodiments, as Figure 3 As shown, the air inlet 21 is fluidically connected to the second chamber 42, so that when the user inhales at the mouthpiece 111, external air enters the electronic atomization device 100 through the air inlet 21, then enters the air guide channel 70, and is transmitted to the atomization chamber by the air guide channel 70.

[0047] And in some embodiments, as Figure 4 As shown, an air guide tube 50 is provided in the air guide channel 70, and the air guide tube 50 extends toward the air inlet hole 21 to guide the air in the air inlet hole 21 into the air guide tube 50, and the air guide tube 50 at least partially passes through the second chamber 42. By providing the air guide tube 50 to connect the first chamber 41 and the second chamber 42, the suction resistance during suction can be reduced.

[0048] In some embodiments, as Figure 4As shown, the air guide tube 50 has an air inlet end 51 and an air outlet end 52. The air inlet end 51 extends into the air inlet hole 21, and the air outlet end 52 is fluidically connected to the first chamber 41. When the user spits out the aerosol during the inhalation process, the spewed out aerosol will directly enter the air inlet hole 21 through the air guide tube 50 and be discharged from the electronic atomization device 100 through the air inlet hole 21, which can prevent the spewed out aerosol from contacting electronic devices such as airflow sensors, thereby affecting the service life and performance of the electronic devices.

[0049] Further in some embodiments, Figure 4 As shown, a gap 511 is maintained between the air inlet end 51 of the air duct 50 and the inner wall of the air inlet hole 21. The gap 511 connects the second chamber 42 and the air inlet end 51, so that the air in the second chamber 42 can flow into the first chamber 41 through the gap 511 and the air duct 50, so that the air duct 50 connects the fluids of the first chamber 41 and the second chamber 42.

[0050] The airway 50 can be independently provided, such as Figure 4 As shown, the air outlet end 52 of the air guide tube 50 extends into the air guide channel 70 and is interference fit with the air guide channel 70, thereby fixing the air guide tube 50. Of course, the air guide tube 50 can also be fixed in other ways.

[0051] The air duct 50 is preferably made of stainless steel, so that the interior of the air duct 50 can be as smooth as possible, thereby reducing the friction between the air flow and the inner wall of the air duct 50 when the air flow passes through the air duct 50, which is beneficial to reducing the suction resistance.

[0052] Alternatively, in some embodiments, the air duct 50 may also be directly formed by the sealing member 30 .

[0053] In some embodiments, as Figure 5 As shown, a first through hole 53 exposed to the second chamber 24 is opened on the wall of the air duct 50. The air in the second chamber 42 can enter the air duct 50 through the first through hole 53 and be transmitted to the first chamber 41 by the air duct 50, thereby allowing the air duct 50 to connect the fluids of the first chamber 41 and the second chamber 42.

[0054] For example, when the air duct 50 is independently provided, the air inlet end 51 and the air outlet end 52 of the air duct 50 can be extended into the air inlet hole 23 and the air guide channel 70 respectively, and the air inlet end 51 and the air inlet hole 23 are interference fit, and the air outlet end 52 and the air guide channel 70 are interference fit. Thus, on the one hand, the assembly gap between the air inlet end 51 and the inner wall of the air inlet hole 23 and the assembly gap between the air outlet end 52 and the inner wall of the air guide channel 70 can be sealed. On the other hand, the air duct 50 can be fixed. At this time, a first through hole 53 can be provided on the tube wall of the air duct 50, and the air duct 50 connects the first chamber 41 and the second chamber 42 fluid through the first through hole 53.

[0055] Alternatively, in some embodiments, the air duct 50 is directly formed by the base 20, that is, the air duct 50 is part of the base 20, and the air outlet end 52 of the air duct 50 extends into the air guide channel 70 and is interference fit with the air guide channel 70, thereby sealing the assembly gap between the air outlet end 52 and the inner wall of the air guide channel 70. At this time, a first through hole 53 can also be provided on the tube wall of the air duct 50, so that the air duct 50 connects the first chamber 41 and the second chamber 42 fluid through the first through hole 53.

[0056] In some embodiments, as Figure 5 As shown, a circuit board 60 is provided in the second chamber 42, and the airflow sensor 40 is mounted on the circuit board 60. A second through hole 61 is provided on the circuit board 60, and the air guide tube 50 passes through the second through hole 61, thereby preventing the user from respiring aerosol during the inhalation process, causing the respired aerosol to contact the circuit board 60.

[0057] And, in some embodiments, as Figure 3As shown, the seal 30 is also formed with a vent 33, which connects the first chamber 41 and the storage chamber 31. The first chamber 41 is in fluid communication with the atomization chamber. Thus, through the vent 33, the airflow sensor 40 in the storage chamber 31 can sense the negative pressure in the atomization chamber. The vent 33 includes a first section 331 and a second section 332, wherein the second section 332 is located between the first section 331 and the storage chamber 31. The aperture of the first section 331 is smaller than the aperture of the second section 332 to facilitate the processing of the vent 33. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Based on the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present application as described above. For the sake of simplicity, they are not provided in detail. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic atomization device, characterized in that: include: The housing has a first end and a second end disposed opposite to each other along its length, the first end being provided with a nozzle opening, and the housing having a liquid storage cavity for storing a liquid matrix; a nebulizing element for atomizing a liquid matrix to generate an aerosol; an atomization chamber, for providing a space for releasing the aerosol; an airflow sensor, configured to sense the negative pressure generated in the atomization chamber; a seal member for providing a seal between opposite sides of the airflow sensor, wherein the seal member defines a first chamber and a second chamber on opposite sides of the airflow sensor, wherein the first chamber is in fluid communication with the atomization chamber, and the second chamber is in fluid communication with external air; and The base is connected to the second end of the shell, and a gap is formed between at least a part of the base and the sealing member to form the second chamber, and the sealing member is provided with an air guide channel connecting the first chamber and the second chamber.

2. The electronic atomization device according to claim 1, characterized in that An air inlet is provided on the base or the shell, and the air inlet is used to provide an inlet for external air to enter the electronic atomization device. The air inlet is connected to the second chamber.

3. The electronic atomization device according to claim 2, characterized in that An air guide pipe is provided in the air guide channel, and the air guide pipe extends toward the air inlet and at least partially passes through the second chamber.

4. The electronic atomization device according to claim 3, characterized in that The air guide tube has an air inlet end and an air outlet end, the air inlet end extends into the air inlet hole, and the air outlet end is in fluid communication with the first chamber.

5. The electronic atomization device according to claim 4, characterized in that: A gap is maintained between the air inlet end and the inner wall of the air inlet hole, and the gap is communicated with the second chamber.

6. The electronic atomization device according to claim 4, characterized in that The air outlet extends into the air guiding channel and is interference fitted with the air guiding channel.

7. The electronic atomization device according to claim 3, characterized in that A first through hole is formed in the wall of the air guide tube, and the first through hole is exposed to the second chamber.

8. The electronic atomization device according to claim 7, characterized in that: The air guide tube is a part of the base. The air guide tube passes through the second chamber, extends into the air guide channel, and is interference-fitted with the air guide channel.

9. The electronic atomization device according to claim 3, characterized in that: A circuit board for mounting the airflow sensor is provided in the second chamber. The circuit board is provided with a second through hole, and the air guide tube passes through the second through hole.

10. The electronic atomization device according to claim 1, characterized in that: The sealing member is provided with a receiving chamber for receiving at least a portion of the airflow sensor, and a vent hole connecting the receiving chamber and the first chamber, the vent hole includes a first section and a second section, the second section is located between the first section and the receiving chamber, and the aperture of the first section is smaller than the aperture of the second section.

11. The electronic atomization device according to claim 1, characterized in that: The air guide channel includes a third section and a fourth section. The fourth section is located between the third section and the first chamber, and an inner diameter of the fourth section is greater than an inner diameter of the third section.

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