ATOMIZER AND ELECTRONIC ATOMIZATION DEVICE

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001]This application claims priority to a prior application with Chinese Patent Application No. 202211435331.9, filed with the China National Intellectual Property Administration on Nov. 16, 2022 and entitled “ATOMIZER AND ELECTRONIC ATOMIZATION DEVICE”, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

[0002]Embodiments of this application relate to the field of electronic atomization technologies, and in particular, to an atomizer and an electronic atomization device.

BACKGROUND

[0003]During use of tobacco products (for example, cigarettes and cigars), tobaccos are burnt to generate tobacco vapor. An attempt has been made to replace these tobacco-burning products by producing products that release compounds without burning.

[0004]An example of such products is a heating device, which releases compounds by heating tobacco rather than burning the material. For example, the material may be tobacco or other non-tobacco products, and these non-tobacco products may or may not contain nicotine. In another example, aerosol providing products exist, for example, the so-called electronic atomization devices. The devices usually contain a liquid. The liquid is heated and atomized, thereby generating an inhalable aerosol.

SUMMARY

[0010]In some implementations, the first liquid guide element includes a first surface close to the liquid storage cavity, and the liquid substrate stored in the liquid storage cavity is absorbed through the first surface.

[0011]The second liquid guide element includes an exposed section protruding from the first surface, and the liquid substrate in the liquid storage cavity is directly absorbed through the exposed section.

[0012]In some implementations, a protrusion height of the exposed section relative to the first surface is in a range of 0.5 mm to 5 mm.

[0015]In some implementations, the first liquid guide element is constructed in a shape of a sheet or a block perpendicular to a longitudinal direction of the shell.

[0016]In some implementations, a portion of the second liquid guide element bypasses the first liquid guide element through a peripheral side wall of the first liquid guide element and enters the liquid storage cavity, and a portion thereof abuts against the peripheral side wall of the first liquid guide element.

[0026]In some implementations, the side opening is arranged on a side edge close to a width direction of the support.

[0027]In some implementations, the side opening is arranged obliquely at an angle to a longitudinal axis of the support.

[0031]In some implementations, the air channel includes an air groove located on the support and/or the first liquid guide element.

[0037]In some implementations, the support is provided with at least one cut-out or a slit, and the cut-out or the slit defines a portion of the support to form the occluding portion.

[0043]Still another embodiment of this application further provides an electronic atomization device, including the foregoing atomizer and a power supply mechanism for supplying power to the atomizer.

[0044]In the atomizer, the second liquid guide element can simultaneously absorb the liquid substrate from the liquid storage cavity and the first liquid guide element, which is advantageous to balance efficiency of absorption and transfer of a liquid absorbing substrate to the heating element.

BRIEF DESCRIPTION OF THE DRAWINGS

[0045]One or more embodiments are exemplarily described with reference to pictures in accompanying drawings corresponding to the embodiments, and the exemplary descriptions do not constitute a limitation on the embodiments. Elements in the accompanying drawings that have the same reference numeral are represented as similar elements, and unless otherwise particularly stated, the pictures in the accompanying drawings are not drawn to scale.

[0046]FIG. 1 is a schematic diagram of an electronic atomization device according to an embodiment;

[0047]FIG. 2 is a schematic structural diagram of an embodiment of an atomizer in FIG. 1;

[0048]FIG. 3 is a schematic exploded view of the atomizer in FIG. 2 from a perspective;

[0049]FIG. 4 is a schematic exploded view of the atomizer in FIG. 2 from another perspective;

[0050]FIG. 5 is a schematic cross-sectional view of the atomizer in FIG. 2 from a perspective;

[0051]FIG. 6 is an electron micrograph of a liquid guide element having an oriented fiber;

[0052]FIG. 7 is a schematic exploded view of a first liquid guide element, an atomization assembly, and a support in FIG. 5 from another perspective;

[0053]FIG. 8 is a schematic cross-sectional view of the first liquid guide element, the atomization assembly, and the support in FIG. 7 from another perspective;

[0054]FIG. 9 is a schematic cross-sectional view of the first liquid guide element, the atomization assembly, and the support in FIG. 5 from another perspective;

[0055]FIG. 10 is a schematic cross-sectional view of the first liquid guide element, the atomization assembly, and the support in FIG. 5 after assembly;

[0056]FIG. 11 is a schematic exploded view of the first liquid guide element, the atomization assembly, and the support according to another embodiment;

[0057]FIG. 12 is a schematic structural diagram of assembly of the first liquid guide element and the support in FIG. 11;

[0058]FIG. 13 is a schematic structural diagram of the first liquid guide element, the atomization assembly, and the support in FIG. 11 after assembly;

[0059]FIG. 14 is a schematic exploded view of the first liquid guide element, the atomization assembly, and the support according to another embodiment;

[0060]FIG. 15 is a schematic cross-sectional view of the first liquid guide element, the atomization assembly, and the support in FIG. 14 after assembly;

[0061]FIG. 16 is a schematic structural diagram of the first liquid guide element, the atomization assembly, and the support in FIG. 14 after assembly;

[0062]FIG. 17 is a schematic exploded view of the first liquid guide element, the atomization assembly, and the support according to another embodiment; and

[0063]FIG. 18 is a schematic structural diagram of the first liquid guide element, the atomization assembly, and the support in FIG. 17 after assembly.

DETAILED DESCRIPTION

[0064]To facilitate understanding of this application, this application is described in more detail below with reference to accompanying drawings and specific implementations.

[0065]An embodiment of this application provides an electronic atomization device. Referring to FIG. 1, the electronic atomization device includes an atomizer 100 storing and atomizing a liquid substrate to generate an aerosol, and a power supply mechanism 200 for supplying power to the atomizer 100.

[0066]In an optional implementation, as shown in FIG. 1, the power supply mechanism 200 includes: a receiving cavity 270 arranged on an end along a length direction and configured to receive at least part of an atomizer 100; and an electrical contact 230 at least partially exposed from a surface of the receiving cavity 270 and configured to form an electrical connection with the atomizer 100 to supply power to the atomizer 100 when the at least part of the atomizer 100 is received and accommodated in the power supply mechanism 200.

[0067]According to the embodiment shown in FIG. 1, an electrical contact 21 is arranged on the atomizer 100, so that when at least part of the atomizer 100 is received in the receiving cavity 270, the atomizer 100 comes into contact with the electrical contact 230 through the electrical contact 21 to form an electrical connection with the power supply mechanism 200.

[0068]A seal member 260 is arranged in the power supply mechanism 200, and at least part of an internal space of the power supply mechanism 200 is separated by the seal member 260 to form the receiving cavity 270. In the embodiment shown in FIG. 1, the seal member 260 is constructed to extend along a cross-section direction of the power supply mechanism 200, and is preferably made of a flexible material such as silica gel, so as to prevent, from flowing to a component such as a controller 220 and a sensor 250 inside the power supply mechanism 200, the liquid substrate seeping from the atomizer 100 to the receiving cavity 270.

[0069]In the embodiment shown in FIG. 1, the power supply mechanism 200 further includes: a battery core 210, facing away from another end of the receiving cavity 270 along the length direction and configured to supply power; and the controller 220 arranged between the battery core 210 and the receiving cavity 270, where the controller 220 operably guides a current between the battery core 210 and the electrical contact 230.

[0070]During use, the power supply mechanism 200 includes the sensor 250 configured to sense an inhalable airflow generated by the atomizer 100 during inhalation, so that the controller 220 controls the battery core 210 to output power to the atomizer 100 based on a sensing result of the sensor 250.

[0071]Further, in the embodiment shown in FIG. 1, another end of the power supply mechanism 200 facing away from the receiving cavity 270 is provided with a charging interface 240 for charging the battery core 210.

[0074]Further, in specific implementations shown in FIG. 2 to FIG. 5, the electrical contact 21 runs through a surface of the end cap 20 into the atomizer 100, so that the electrical contact 21 is at least partially exposed from the atomizer 100, and then comes into contact with the electrical contact 230 to form an electrical connection. In addition, the end cap 20 is further provided with an air inlet 22 for allowing external air to enter the atomizer 100 during inhalation. As shown in FIG. 2 to FIG. 5, after assembly, the electrical contact 21 is flush with the surface of the end cap 20.

[0077]Further, referring to FIG. 3 to FIG. 5, an interior of the main housing 10 is provided with a liquid storage cavity 12 for storing the liquid substrate, and an atomization assembly for absorbing the liquid substrate from the liquid storage cavity 12 and heat and atomize the liquid substrate. In a schematic cross-sectional view shown in FIG. 5, the main housing 10 has arranged therein an aerosol output tube 11 arranged along an axial direction. The liquid storage cavity 12 for storing the liquid substrate is formed in a space between an outer wall of the aerosol output tube 11 and an inner wall of the main housing 10. A first end of the aerosol output tube 11 opposite to the proximal end 110 is in communication with the inhalation port 111, so that the generated aerosol is transmitted to the inhalation port 111 for inhalation.

[0078]Further, as shown in FIG. 5, the aerosol output tube 11 and the main housing 10 are integrally molded through a moldable material, so that the liquid storage cavity 12 formed after manufacturing is an open space or an opening toward the distal end 120.

[0079]The atomization assembly in FIG. 3 to FIG. 5 includes a second liquid guide element 30 and a heating element 40 for heating and atomizing the liquid substrate absorbed by the second liquid guide element 30. Specifically, the second liquid guide element 30 is made of a flexible strip-shaped or rod-shaped fiber material, for example, cotton fiber, non-woven fabric fiber, or a sponge. During assembly, the second liquid guide element 30 is constructed to be U-shaped, including a portion 31 extending along a width direction of the main housing 10, and a portion 32 extending from two end sides of the portion 31 toward the liquid storage cavity 12. During use, the portion 32 is configured to absorb the liquid substrate and then transfer the liquid substrate to the portion 31 through capillary infiltration. The heating element 40 is constructed to at least partially surround the portion 31, and heat at least part of the liquid substrate of the portion 31 to generate an aerosol. As shown in FIG. 3 to FIG. 5, the heating element 40 has a configuration of a spiral heating wire, and may be made of a resistive metal such as an iron-chromium-aluminum alloy or a nickel-chromium alloy.

[0080]In addition, in an implementation, two ends of the heating element 40 are each provided with a conductive pin 41 for supplying power to the heating element 40.

[0081]In some implementations, an extension length d1 of the portion 31 of the second liquid guide element 30 in FIG. 3 is approximately 9 mm, and an extension length d2 of the portion 32 is approximately 7.5 mm. An inner diameter of the heating element 40 is approximately in a range of 2.0 mm to 2.6 mm.

[0082]Further, in implementations shown in FIG. 3 to FIG. 5, the main housing 10 further has a first liquid guide element 50 arranged therein. The first liquid guide element 50 is a layer of sheet-shaped or block-shaped organic porous fibers arranged perpendicular to a longitudinal direction of the main housing 10. The first liquid guide element 50 is arranged to cover or seal an open space or an opening of the liquid storage cavity 12 toward the distal end 120, to prevent the liquid substrate in the liquid storage cavity 12 from flowing out.

[0083]In a specific implementation, the first liquid guide element 50 is made of 138#hard synthetic organic polymer fiber with a density in a range of 0.1 mg/mm³ to 0.9 mg/mm³; and an overall weight of the first liquid guide element 50 is approximately in a range of 0.04 g to 0.06 g. The first liquid guide element 50 is made of oriented fibers substantially in an oriented arrangement along the length direction. For example, FIG. 6 shows a microtopographic map of polypropylene fibers having an oriented arrangement in an embodiment. By arranging the oriented fibers in the length direction of the first liquid guide element 50, the first liquid guide element 50 is endowed with a high anti-bending property and a rigidity.

[0084]In addition, in some implementations, the first liquid guide element 50 including the foregoing synthetic organic polymer fiber exhibits moderate flexibility and rigidity. In an implementation, the first liquid guide element 50 has an elastic modulus or a rigidity less than that of a material of the main housing 10 and greater than that of a material of the second liquid guide element 30. Specifically, the first liquid guide element 50 has hard artificial cotton with Shore hardness of 20 A to 70 A. In some specific implementations, the first liquid guide element 50 is hard artificial cotton including oriented polyester fibers, or hard artificial cotton or artificial foam made of filamentous polyurethane. The foregoing first liquid guide element 50 has a hardness or flexibility between that of common flexible plant cotton/non-woven fabric (with Shore Hardness of less than 20 A) and that of a rigid porous ceramic/microporous metal (with Shore Hardness of greater than 80 A). Therefore, a structure thereof is stable and has extremely low expansion after the liquid substrate is absorbed and immersed. After assembly, a manner of contact between the first liquid guide element 50 and the inner wall of the main housing 10 or a tube wall of the aerosol output tube 11 is between a flexible contact and a rigid contact. On the one hand, the first liquid guide element 50 may independently seal the liquid storage cavity 12 through flexibility thereof, and on the other hand, the first liquid guide element 50 has specific hardness and may be easily fixed and held. Specifically, as shown in the above figures, a shape of the first liquid guide element 50 substantially matches the open space at a lower end of the liquid storage cavity 12, so that the first liquid guide element may be configured to cover, block, and seal the liquid storage cavity 12.

[0085]The first liquid guide element 50 having the foregoing oriented fiber is anisotropic. Specifically, on the one hand, a flexural strength along the length direction is greater than a flexural strength along the width direction; or on the other hand, a liquid guide rate along the length direction is greater than a liquid guide rate along the width direction.

[0086]The first liquid guide element 50 in the foregoing embodiment is substantially in the shape of a flat column with an elliptical cross section. A maximum value of a length of the first liquid guide element 50 is 16.4 mm, a maximum value of a width thereof is 7.8 mm, and a thickness thereof is 2.0 mm.

[0087]During use, an upper side surface 510 of the first liquid guide element 50 close to the liquid storage cavity 12 is opposite to the liquid storage cavity 12 and is configured to absorb the liquid substrate.

[0088]Further, in the embodiment shown in FIG. 5, an inner wall surface of the main housing 10 that defines the liquid storage cavity 12 is further provided with a plurality of ridges 13. After the assembly, the upper side surface 510 of the first liquid guide element 50 close to the liquid storage cavity 12 abuts against each of the ridges 13 to form a stop, which facilitates the assembly and fixation of the first liquid guide element 50.

[0089]Further, in the implementations shown in FIG. 3 to FIG. 5, the main housing 10 has a support 70 arranged therein, so as to provide support and fixation for the first liquid guide element 50 and the atomization assembly. The support 70 is substantially in a shape of a hollow cup or cylinder, and the atomization assembly is accommodated and held in the support 70. In addition, the support 70 abuts against a lower side surface of the first liquid guide element 50 facing away from the liquid storage cavity 12, so as to provide support or retention for the first liquid guide element 50.

[0090]Further, in the implementations shown in FIG. 3 to FIG. 5, a space inside the support 70 further defines an atomization chamber 73 surrounding the portion 31 and/or the heating element 40. The aerosol generated by the heating element 40 through heating is released into the atomization chamber 73 and then outputted through the aerosol output tube 11. In addition, an end portion 710 of the support 70 close to the liquid storage cavity 12 provides support for the first liquid guide element 50. The first liquid guide element 50 is provided with an insertion hole 51 for the aerosol output tube 11 to be inserted or pass through. During the assembly, a second end of the aerosol output tube 11 facing away from the inhalation port 111 is inserted into or passes through the insertion hole 51 into the support 70, and then is brought into communication with the atomization chamber 73 to output an aerosol in the atomization chamber 73 to the inhalation port 111.

[0091]In the implementations shown in FIG. 3 to FIG. 5, the support 70 is further provided with a contact hole 71. The contact hole 71 is oriented toward the end cap 20. After the assembly, the conductive pin 41 of the heating element 40 extends through the end portion 720 of the support 70, and is bent into the contact hole 71, and then the electrical contact 21 extends into the contact hole 71 and abuts against the conductive pin 41 to form an electrical connection.

[0092]In the implementations shown in FIG. 3 to FIG. 5, the support 70 is further provided with an air inlet 72 in communication with an air inlet 22. During the inhalation, the external air enters the atomization chamber 73 through the air inlet 22 and the air inlet 72 in sequence, and carries the aerosol in the atomization chamber 73 and outputs the aerosol to the inhalation port 111 through the aerosol output tube 11, as shown by arrows R2 in FIG. 3 and FIG. 5.

[0093]In the implementations shown in FIG. 3 to FIG. 5, a convex rib 731, a convex rib 732, and a convex rib 733 that surround the support 70 along a circumferential direction are arranged on an outer surface of the support 70. In an implementation, the convex rib 731, the convex rib 732, and the convex rib 733 are closed rings for sealing a gap between the support 70 and the main housing 10. In addition, the convex rib 731, the convex rib 732, and the convex rib 733 are successively arranged along a longitudinal direction of the support 70. The convex rib 731 is arranged close to the first liquid guide element 50 and/or the end portion 710 of the support 70, and the convex rib 733 is arranged close to the end cap 20 and/or the end portion 720 of the support 70. After the assembly, the convex rib 733 is located between the end cap 20 and the main housing 10; and the convex rib 733 is at least partially squeezed or compressed by the end cap 20 and the main housing 10.

[0094]Further, referring to FIG. 7 to FIG. 10, an inner surface of the support 70 that defines the atomization chamber 73 is further provided with a plurality of ridges 74 arranged along the longitudinal direction. A spacing is defined between the plurality of ridges 74, so as to form a capillary trench for absorbing and retaining aerosol condensate in the atomization chamber 73. In some implementations, a protrusion height of each of the ridges 74 is approximately in a range of 1 mm to 3 mm, and a width of the ridge 74 is approximately in a range of 0.5 mm to 1.5 mm. A spacing between adjacent ridges 74 is less than 2 mm, so that a width of a formed capillary trench is less than 2 mm.

[0095]In the implementations shown in FIG. 7 to FIG. 10, the support 70 is made of a flexible material such as silica gel or a thermoplastic elastomer. The support 70 has an end portion 710 and an end portion 720 that face away from each other along a longitudinal direction; and the end portion 710 of the support 70 is open, and the end portion 720 is closed. After the assembly, the open space of the end portion 710 of the support 70 is covered by the first liquid guide element 50. Further, the first liquid guide element 50 and the support 70 jointly define the atomization chamber 73.

[0098]Further, as shown in FIG. 7 to FIG. 10, at least one or more trenches or grooves 7511 are provided on a surface of the holding cavity 751. The trench or groove 7511 is provided adjacent to the heating element 40, so as to absorb or buffer the liquid substrate seeping out from the portion 31, and adjust efficiency of the liquid substrate transferred to the heating element 40. This is advantageous to alleviate a situation in which an over-saturated liquid substrate splashes out of the second liquid guide element 30 to form a liquid mass during heating.

[0103]As shown in FIG. 3 to FIG. 10, the first liquid guide element 50 is located outside the support 70, and is not accommodated or held in the support 70. The first liquid guide element 50 is arranged substantially perpendicular to the longitudinal direction of the main housing 10. The portion 31 of the second liquid guide element 30 is arranged perpendicular to the longitudinal direction of the main housing 10; and the portion 32 of the second liquid guide element 30 is substantially arranged to extend along the longitudinal direction of the main housing 10.

[0104]As shown in FIG. 5 and FIG. 10, the liquid absorption and transfer of the second liquid guide element 30 includes that The second liquid guide element 30 may directly absorb the liquid substrate in the liquid storage cavity 12 through the exposed section 321, and then transfer the liquid substrate to the portion 31 to be heated and atomized, as shown by arrows R11 in FIG. 5 and FIG. 10. Moreover, the portion 32 of the second liquid guide element 30 further comes into contact with the first liquid guide element 50 to absorb the liquid substrate of the first liquid guide element 50, and then transfers the liquid substrate to the portion 31 to be heated and atomized, as shown by arrows R12 in FIG. 5 and FIG. 10. In an implementation, on the one hand, the portion 32 not only extends through the first liquid guide element 50 into the liquid storage cavity 12 through the exposed section 321 to directly absorb the liquid substrate, but also comes into contact with the first liquid guide element 50 to indirectly absorb the liquid substrate in the liquid storage cavity 12. This is advantageous to balance absorption efficiency of a liquid absorbing substrate.

[0105]Alternatively, FIG. 11 to FIG. 13 are schematic diagrams showing a first liquid guide element 50a, an atomization assembly, and a support 70a according to still another variant embodiment. In the variant embodiment, an end portion 710a of the support 70a is open. The first liquid guide element 50a is received from the end portion 710a of the support 70a and accommodated in the support 70a. The support 70a has an accommodating portion 78a defined by a step 77a on an inner surface. After assembly, the first liquid guide element 50a is accommodated and held in the accommodating portion 78a, and abuts against the step 77a to provide a stop. In addition, after the assembly, the flexible support 70a at least partially provides a liquid seal between the first liquid guide element 50a and the main housing 10.

[0106]When the first liquid guide element 50a is assembled and accommodated in the accommodating portion 78a, an upper side surface 510a of the first liquid guide element 50a is substantially flush with the end portion 710a of the support 70a.

[0109]Further, as shown in FIG. 11 to FIG. 13, when the first liquid guide element 50a is assembled and accommodated in the accommodating portion 78a, the first liquid guide element 50a at least partially avoids a holding cavity 752a of the support 70a. Therefore, when the first liquid guide element 50a is assembled and accommodated in the accommodating portion 78a, a spacing gap is defined between the first liquid guide element 50a and an inner surface of the holding cavity 752a defined by the support 70a, so that a portion 32 of a second liquid guide element 30 can pass through the spacing gap to outside of the upper side surface 510a of the first liquid guide element 50a to define an exposed section 321, thereby directly absorbing a liquid substrate in the liquid storage cavity 12 through the exposed section 321.

[0110]As shown in FIG. 11 to FIG. 13, a peripheral side wall of the first liquid guide element 50a has a straight portion 53a. The straight portion 53a is arranged on at least one side of the first liquid guide element 50a in a length direction. In an implementation, the foregoing spacing gap is defined between the straight portion 53a and an inner surface of a holding cavity 752a defined by the support 70a. After the assembly, the portion 32 of the second liquid guide element 30 is at least partially squeezed or compressed by the straight portion 53a, and is in contact with the straight portion 53a, so that the liquid substrate can be absorbed from the first liquid guide element 50a.

[0111]Further, FIG. 14 to FIG. 16 are schematic diagrams showing a first liquid guide element 50b, an atomization assembly, and a support 70b according to still another variant embodiment. In the embodiment, an end portion 710b of the support 70b is an open space, and has an accommodating cavity 78b defined by a step 77b. During assembly, the first liquid guide element 50b can be received or accommodated in the accommodating cavity 78b through the open space, and abut against the step 77b to provide a stop. In addition, an air groove 79b on an inner surface of the accommodating cavity 78b defined by the support 70b is configured for defining an air channel with a peripheral side wall of the first liquid guide element 50b when the first liquid guide element 50b is received in the accommodating cavity 78b, so as to provide a flow path for air in the support 70b to enter a liquid storage cavity 12.

[0112]In FIG. 14 to FIG. 16, the holding cavity 752b defines a side opening 712b located on at least one side in a width direction of the support 70b. The side opening 712b is configured for avoiding or facing away from the first liquid guide element 50b and/or the accommodating cavity 78b. After the assembly, the portion 32b of the second liquid guide element 30b at least partially extends from the side opening 712b to outside of the support 70b and/or the first liquid guide element 50b, so as to form an exposed section 321b to directly absorb a liquid substrate of the liquid storage cavity 12.

[0113]In implementations shown in FIG. 14 to FIG. 16, at least part of the holding cavity 752b close to the side opening 712b is inclined and bent outward along a width direction of the support 70b. In this way, a partial area of the portion 32b is also inclined or bent. After the assembly, the exposed section 321b extending out of the support 70b is defined by a portion of a bent area of the portion 32b. As shown in FIG. 15, the exposed section 321b and the first liquid guide element 50b are arranged obliquely at a non-vertical angle. An included angle α between the exposed section 321b and the first liquid guide element 50b is in a range of 45° to 85°.

[0114]As shown in FIG. 14 to FIG. 16, the side opening 712b is close to or arranged at the end portion 710b. The side opening 712b or an end surface 711b defining the side opening 712b is arranged to be inclined toward a direction close to the first liquid guide element 50b. The first liquid guide element 50b further covers and squeezes the portion 32b to stably hold the portion 32b, and can also transfer a liquid substrate to the portion 32b by contact.

[0115]Alternatively, FIG. 17 and FIG. 18 are schematic diagrams showing a first liquid guide element 50c, an atomization assembly, and a support 70c according to still another variant embodiment. Similarly, the support 70c is at least partially curved through a holding cavity for accommodating or holding a portion 32c, so that the portion 32c is bent at least outward of the support 70c.

[0119]During assembly, the movable occluding portion 712c is first folded outward and opened, so that an exposed section 321c of the portion 32c extends into the cut-out or the slit 711c. Then the first liquid guide element 50c is accommodated in an accommodating cavity 78c of the support 70c, so that the first liquid guide element 50c covers or abuts against a portion 32c of a second liquid guide element 30c. After the assembly is completed, the movable occluding portion 712c is bent inward to cover at least part of the exposed section 321c. Moreover, after the assembly, the movable occluding portion 712c does not completely cover the exposed section 321c, so that a portion of the exposed section 321c is exposed from the end portion 710c of the support 70c, to directly absorb a liquid substrate in a liquid storage cavity 12.

[0120]In addition, in some implementations, a width of the cut-out or the slit 711c is approximately in a range of 0.5 mm to 2 mm.

[0121]In the implementations shown in FIG. 17 and FIG. 18, the movable occluding portion 712c is defined through the cut-out or the slit 711c, which is advantageous for assembly of the first liquid guide element 50c and the atomization assembly. After the assembly, the exposed section 321c is sandwiched and exposed between the movable occluding portion 712c and a straight portion 53c of a peripheral side wall of the first liquid guide element 50c, which is advantageous for production and assembly.

[0122]After the assembly, the movable occluding portion 712c is further configured to provide occlusion or obstruction between the exposed section 321c of the portion 32c and an inner wall surface of a main housing 10, so as to prevent the flexible exposed section 321c from extending into or being sandwiched between the inner wall surface of the main housing 10 and the support 70c during assembly.

[0123]Alternatively, in some other variant implementations, an air groove 79a/79b/79c defining an air channel is defined or formed on a peripheral side wall of a first liquid guide element 50a/50b/50c.

[0124]It should be noted that preferred embodiments of this application are provided in the specification and the accompanying drawings of this application, but are not limited to the embodiments described in the specification. Further, a person of ordinary skill in the art may make improvements or modifications according to the above descriptions, and all of the improvements and modifications shall fall within the protection scope of the appended claims of this application.