Atomization device and atomizer

Abstract

An atomization device and an atomizer are disclosed. The atomization device includes a housing having a first opening and an air outlet; a base hermetically mounted at the first opening; an atomization tube disposed inside the housing, the atomization tube being in communication with the air inlet and the air outlet, the atomization tube, the housing, and the base defining an e-liquid chamber, the atomization tube being provided with an e-liquid inlet; an e-liquid storage member disposed within the e-liquid chamber, the e-liquid storage member surrounding the atomization tube, the e-liquid storage member having an embedded portion embedded in the base, the embedded portion blocking the e-liquid inlet.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present disclosure is a continuation application of International Application No. PCT / CN2023 / 135351, filed on November 30, 2023, which claims priority to Chinese Patent Application No. 202322600829.2, filed with the China National Intellectual Property Administration on September 25, 2023, and entitled "ATOMIZATION DEVICE AND ATOMIZER", the disclosures of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure relates to the field of atomization technologies, and specifically to an atomization device and an atomizer.BACKGROUND

[0003] An atomizer is a device for atomizing e-liquid, including an atomization device and a power supply apparatus, wherein the power supply apparatus is configured to supply power to the atomization device. The atomization device generally includes a housing, a base, an atomization tube, and an e-liquid guiding member. A mouthpiece is provided at the top of the housing, and an opening is provided at the bottom of the housing. The base is hermetically mounted at the opening of the housing. The atomization tube is mounted inside the housing, and together with the housing and the base defines a gas passage in communication with the mouthpiece. The atomization tube is provided with an e-liquid inlet, and an atomization core is mounted inside the atomization tube. An e-liquid chamber is further provided inside the housing outside the atomization tube, and liquid in the e-liquid chamber can enter the atomization tube through the e-liquid inlet, be absorbed and heated by the atomization core, and evaporated into atomized vapor for inhalation by the user through the gas passage.

[0004] In conventional atomization devices, during use, a relatively large amount of e- liquid may directly enter the atomization tube through the e-liquid inlet. Excess e- liquid may flow along the wall of the gas passage toward the mouthpiece, thereby causing e-liquid leakage.SUMMARY

[0005] The present disclosure provides an atomization device and an atomizer, aiming to solve the technical problem that, in conventional atomization devices, excessive e- liquid enters the atomization tube through the e-liquid inlet, which may lead to e- liquid leakage.

[0006] According to one aspect of the present disclosure, in one embodiment, an atomization device is provided, including:

[0007] a housing having a first opening and an air outlet;

[0008] a base hermetically mounted at the first opening, the base being provided with an air inlet;

[0009] an atomization tube disposed inside the housing, the atomization tube being in communication with the air inlet and the air outlet, the atomization tube, the housing, and the base together defining an e-liquid chamber, the atomization tube being provided with an e-liquid inlet; and

[0010] an e-liquid storage member disposed within the e-liquid chamber, the e-liquid storage member surrounding the atomization tube, the e-liquid storage member having an embedded portion embedded in the base, the embedded portion blocking the e-liquid inlet.

[0011] In an optional embodiment, the atomization tube has a first end and a second end arranged along its longitudinal direction, the first end being in sealing engagement with the housing, and the second end being in sealing engagement with the base; and the e-liquid inlet includes a notch provided at the second end of the atomization tube, the notch and the base together enclosing to form a first through hole; and

[0012] the atomization device further includes an e-liquid guiding member having a protruding portion located within the notch, the protruding portion blocking the first through hole.

[0013] In an optional embodiment, the base includes a base body and a sealing seat, the base body being provided with a positioning recess, the sealing seat being disposed within the positioning recess, the base body being in sealing engagement with the second end through the sealing seat, and the base body further being in sealing engagement with the e-liquid guiding member and the e-liquid storage member in an axial direction of the atomization tube through the sealing seat; and / or

[0014] the housing includes a housing body and a sealing ring, the housing body being in sealing engagement with the first end through the sealing ring, and the sealing ring further being in sealing engagement with the e-liquid storage member in the axial direction of the atomization tube.

[0015] In an optional embodiment, the sealing seat is provided with a sealing groove fitted in sealing engagement with the tube wall of the second end, and in the axial direction of the atomization tube, an axial end portion of the sealing seat and the notch together enclose to form the first through hole; and the e-liquid guiding member further includes an annular portion disposed radially inside the atomization tube, the axial end portion of the sealing seat being in axial sealing engagement with the annular portion.

[0016] In an optional embodiment, the sealing seat has a flange located radially outside the atomization tube, the flange being in sealing engagement with the e-liquid storage member in the axial direction of the atomization tube, and the flange being in sealing engagement with the protruding portion in a radial direction of the atomization tube.

[0017] In an optional embodiment, the base is provided with a mounting recess having an opening facing the e-liquid chamber, the e-liquid storage member being completely embedded in the mounting recess.

[0018] In an optional embodiment, the base is provided with an e-liquid-inlet passage and an annular recess with an opening facing away from the e-liquid chamber, the annular recess being in communication with the e-liquid chamber through the e- liquid-inlet passage; and

[0019] the atomization device further includes an e-liquid-filling plug and an e-liquid absorbing member, the e-liquid-filling plug blocking the e-liquid-inlet passage, and the e-liquid absorbing member being positioned within the annular recess.

[0020] In an optional embodiment, the base is provided with an air-inlet passage, the air-inlet passage being in communication with the air inlet and a central passage of the atomization tube, an e-liquid-blocking baffle being disposed in the air-inlet passage, the e-liquid-blocking baffle having a flow guiding surface facing the e-liquid chamber, the flow guiding surface being configured to guide condensed e-liquid from the central passage and the air-inlet passage into the annular recess.

[0021] In an optional embodiment, the atomization device further includes a fixing member and a sealing member, the fixing member being fixedly connected to the housing, the sealing member being disposed between the fixing member and the e- liquid absorbing member, the sealing member and the annular recess together enclosing to form an annular e-liquid absorbing chamber, the sealing member being provided with a guiding surface for guiding condensed e-liquid into the annular e- liquid absorbing chamber.

[0022] According to one aspect of the present disclosure, in one embodiment, an atomizer is provided, including a power supply apparatus and the atomization devices described above.

[0023] By virtue of the atomization device and the atomizer according to the above embodiments, since the atomization tube, the housing, and the base enclose to form an e-liquid chamber, and the e-liquid storage member is located within the e-liquid chamber, the e-liquid storage member is arranged surrounding the atomization tube, and at least a portion of the e-liquid storage member is embedded in the base, the embedded portion of the e-liquid storage member blocks an e-liquid inlet on the atomization tube. Thus, e-liquid enters the atomization tube sequentially from the e- liquid chamber through the portion embedded in the base and then via the e-liquid inlet on the atomization tube. In this way, through dual barriers provided by the base and the e-liquid storage member, the amount of e-liquid entering the atomization tube via the e-liquid inlet path can be effectively reduced, thereby effectively lowering the possibility of e-liquid leakage along the e-liquid inlet path, and thus helping to improve sealing performance of the atomization device and the entire atomizer.BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic diagram of an internal structure of an atomization device in one embodiment;

[0025] FIG. 2 is a schematic diagram of an internal structure of an atomization device in one embodiment from another perspective;

[0026] FIG. 3 is a schematic diagram of a radial sectional structure of a base in one embodiment;

[0027] FIG. 4 is an exploded structural schematic diagram of an atomization device in one embodiment; and

[0028] FIG. 5 is a partial exploded structural schematic diagram of an atomization tube, an e-liquid guiding member, a sealing seat, and a sealing ring in one embodiment.

[0029] Reference signs:

[0030] 1, housing body; 11, large cylinder; 12, small cylinder; 121, air outlet; 2, sealing ring; 21, inner flange; 22, outer flange; 3, base; 31, mounting recess; 32, recess; 33, lateral notch; 34, annular recess; 35, e-liquid-blocking baffle; 351, flow guiding surface; 36, positioning recess; 37, e-liquid-inlet passage; 4, sealing seat; 41, sealing groove; 42, central through hole; 43, first sealing surface; 44, second sealing surface; 45, third sealing surface; 46, flange; 5, atomization tube; 51, first end; 52, second end; 53, notch; 54, second through hole; 6, e-liquid guiding member; 61, annular portion; 62, protruding portion; 71, e-liquid storage member; 72, e-liquid- filling plug; 73, e-liquid absorbing member; 74, fixing member; 75, circuit board; 8, sealing member; 81, guiding surface; 82, first flange; 83, second flange; 9, heating member; 91, heating electrode.DETAILED DESCRIPTION

[0031] The present disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are denoted by associated similar reference numerals. In the following embodiments, many details are provided for better understanding of the present disclosure. However, those skilled in the art will readily recognize that some features may be omitted in different circumstances, or may be replaced with other elements, materials, or methods. In some cases, some operations related to the present disclosure are not shown or described in the specification so as not to obscure the core aspects of the present disclosure, and for those skilled in the art, it is not necessary to describe these related operations in detail, as they can be fully understood based on the description herein and general technical knowledge in the field.

[0032] In addition, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the steps involved in the embodiments may be rearranged or adjusted in an order obvious to those skilled in the art. Therefore, the specification and drawings are merely provided to clearly describe one embodiment, and do not imply required components and / or sequences.

[0033] The numbering of components in the present disclosure, such as "first," "second," etc., is merely used to distinguish the objects described, and carries no sequential or teclmical meaning. Unless otherwise specified, the terms "connected" or "coupled" as used in the present disclosure include both direct and indirect connections (or couplings).

[0034] The present disclosure discloses an atomization device, which is applied in an atomizer and configured to atomize liquid into vapor for inhalation by a user.

[0035] The present disclosure discloses an atomization device, including a housing, a base, an atomization tube 5, and an e-liquid storage member 71. The housing is provided with a first opening and an air outlet 121. The base is mounted at the first opening of the housing and is in sealing engagement with the housing. The base is provided with an air inlet. The atomization tube 5 is located within the housing and communicates the air inlet with the air outlet 121. The atomization tube 5, the housing, and the base together enclose to form an e-liquid chamber, which is located radially outside the atomization tube 5. The atomization tube 5 is provided with an e-liquid inlet. The e-liquid storage member 71 is located within the e-liquid chamber, surrounding the atomization tube 5. The e-liquid storage member 71 is provided with an embedded portion that is embedded in the base, and the embedded portion blocks the e-liquid inlet.

[0036] In the atomization device disclosed in the present disclosure, the atomization tube 5, the housing, and the base together enclose to form the e-liquid chamber. The e- liquid storage member 71 is located within the e-liquid chamber and surrounds the atomization tube. At least a portion of the e-liquid storage member 71 is embedded in the base, and the embedded portion of the e-liquid storage member 71 blocks the e- liquid inlet on the atomization tube 5. In this way, the e-liquid storage member 71 and the e-liquid inlet communicate the e-liquid chamber with a central passage inside the atomization tube 5 to form an e-liquid-inlet path. As shown by the dashed arrow in FIG. 1, the e-liquid can enter the atomization tube 5 along the e-liquid-inlet path. Through dual barriers formed by the base and the e-liquid storage member 71, the amount of e-liquid entering the atomization tube 5 via the e-liquid-inlet path is effectively reduced. This effectively reduces the possibility of e-liquid leakage along the e-liquid-inlet path, thereby helping to improve the sealing performance of the atomization device and the entire atomizer.

[0037] In some embodiments, referring to FIG. 1 to FIG. 5, the atomization tube 5 has a first end 51 and a second end 52 arranged along its length direction. The first end 51 is in sealing engagement with the housing. The e-liquid inlet includes a notch 53, and the notch 53 is arranged at the second end 52 of the atomization tube 5. The tube wall of the second end 52 is in sealing engagement with the base. The notch 53 and the base together enclose to form a first through hole.

[0038] The atomization device further includes an e-liquid guiding member 6, which is inserted into the atomization tube 5. The e-liquid guiding member 6 has a protruding portion 62 located within the notch 53, and the protruding portion 62 blocks the first through hole.

[0039] In this way, the tube walls at both ends of the atomization tube S are in sealing engagement with the housing and the base, respectively. Furthermore, the first through hole of the atomization tube 5 is blocked by the protruding portion 62 of the e-liquid guiding member 6, thereby achieving sealing at both ends of the atomization tube 5 between its interior and exterior. This configuration effectively reduces the amount of e-liquid that enters the atomization tube 5 through the connections between the atomization tube 5 and the base or the housing. This reduction in e-liquid leakage helps to improve the sealing performance of the atomization device and the atomizer.

[0040] In some other embodiments, still referring to FIG. 1 to FIG. 5, the e-liquid inlet further includes a second through hole 54 located on the tube wall of the atomization tube 5. The e-liquid guiding member 6 is provided with an annular portion 61 connected to the protruding portion 62, and the annular portion 61 is located inside the atomization tube 5 and is configured to block the second through hole 54. This arrangement helps to increase the area of the e-liquid inlet on the atomization tube 5. While ensuring good sealing performance, this can prevent the e-liquid-inlet amount of the atomization device from being too low, which could affect the normal use of the atomization device and the entire atomizer.

[0041] Specifically, with reference to FIG. 1 to FIG. 3, in some embodiments, the housing includes a housing body 1 and a sealing ring 2. The housing body 1 is provided with a large cylinder 11 and a small cylinder 12. Both the large cylinder 11 and the small cylinder 12 are cylindrical structures. The small cylinder 12 is located radially inside the large cylinder 11 and is coaxial with the large cylinder 11. One end of the large cylinder 11 is provided with the first opening, and the other end is connected to the wall of the small cylinder 12. The small cylinder 12 is provided with an inner end and an outer end. The inner end is located within the large cylinder 11, and the outer end is located outside the large cylinder 11 to form a mouthpiece of the atomization device. An opening at the outer end of the small cylinder 12 forms the air outlet 121. The hardness of the sealing ring 2 is less than that of the housing body 1. The sealing ring 2 may be a rubber component. The sealing ring 2 extends along a length direction of the small cylinder 12 and is press-fitted into the small cylinder 12 with an interference fit. The sealing ring 2 is in sealing engagement with the inner side wall of the small cylinder 12 via protrusions on its radially outer side. One end of the sealing ring 2 is provided with an outer flange 22 that extends radially outward, and the outer flange 22 is positioned and matched with the inner end face of the small cylinder 12. The other end of the sealing ring 2 is also provided with an inner flange 21 that extends radially inward. The sealing ring 2 is also press-fitted with the atomization tube 5 with an interference fit. The sealing ring 2 is sleeved on the first end 51 of the atomization tube 5. The end face of the first end 51 of the atomization tube 5 is positioned and matched with the inner flange 21 of the sealing ring 2 to limit the relative position of the sealing ring 2 and the atomization tube 5 in the length direction of the atomization tube 5. The radially inner side of the sealing ring 2 is further provided with protrusions that are in sealing engagement with the outer wall of the atomization tube 5. In this way, sealing engagement between the housing body 1 and the atomization tube 5 can be achieved via the sealing ring 2, thereby realizing sealing engagement between the entire housing and the first end 51 of the atomization tube 5.

[0042] Certainly, in some other embodiments, the housing body 1 of the housing and the sealing ring 2 may alternatively be integrally molded from two different materials, where the hardness of the housing body 1 is greater than the hardness of the sealing ring 2. The sealing ring 2 may be made of a rubber material, which can improve the sealing performance between the housing and the atomization tube 5.

[0043] The structure of the sealing ring 2 in the present disclosure is not limited to the structure described in FIG. 1 to FIG. 3. For example, the sealing ring 2 may be sleeved on the inner end of the small cylinder 12 and positioned and matched with the small cylinder 12. The sealing ring 2 is provided with an annular recess to be sealed and matched with the first end 51 of the atomization tube 5.

[0044] In some embodiments, referring to FIG. 1, FIG. 2, FIG. 4, and FIG. 5, the base includes a base body 3 and a sealing seat 4. The base body 3 is provided with a positioning recess 36 with its opening facing toward the atomization tube 5. The sealing seat 4 is mounted inside the positioning recess 36. The hardness of the sealing seat 4 is less than that of the base body 3. The sealing seat 4 may be a rubber component. Protrusions are arranged on the outer peripheral surface of the sealing seat 4, and the sealing seat 4 and the positioning recess 36 are fitted together with an interference fit via the protrusions, thereby ensuring the sealing performance between the sealing seat 4 and the base body 3.

[0045] Certainly, in other embodiments, the base body 3 and the sealing seat 4 of the base may alternatively be integrally molded from two different materials of different hardness by means of overmolding. The hardness of the base body 3 is greater than the hardness of the seating seat 4. The seating seat 4 may be made of a rubber material, which can improve the sealing performance between the base body 3 and the sealing seat 4.

[0046] In some embodiments, the base body 3 is in sealing engagement with the tube wall of the second end 52 of the atomization tube 5 by means of the sealing seat 4. The base body 3 further is in sealing engagement with the e-liquid guiding member 6 and the e-liquid storage member 71 separately by means of the sealing seat 4 in the axial direction of the atomization tube 5.

[0047] Specifically, continuing to refer to FIG. 1, FIG. 2, FIG. 4, and FIG. 5, the sealing seat 4 is provided with a sealing groove 41 that is in sealing engagement with the tube wall of the second end 52. Along the axial direction of the atomization tube 5, an axial end portion of the sealing seat 4 and the notch 53 together enclose to form a first through hole. The axial end portion of the sealing seat 4 further axially seals with the annular portion 61 of the e-liquid guiding member 6. The axial end portion of the sealing seat 4 has a first sealing surface 43 and a second sealing surface 44 facing the atomization tube 5. The first sealing surface 43 is located inside the atomization tube 5 in a radial direction of the atomization tube 5, and the second sealing surface 44 is located inside the notch 53 in the radial direction of the atomization tube 5. Both the first sealing surface 43 and the second sealing surface 44 are in sealing engagement with the e-liquid guiding member 6 in the axial direction of the atomization tube 5.

[0048] More specifically, referring to FIG. 4 and FIG. 5, the opening of the notch 53 on the second end 52 is oriented away from the first end 51. Two notches 53 may be provided, arranged at equal intervals along the circumference of the atomization tube 5 to facilitate the machining of the notches 53. The number of sealing grooves 41 corresponds one-to-one to the number of notches 53. The sealing grooves 41 are provided on the sealing seat 4. The sealing grooves 41 are arc-shaped grooves. The circumferential dimension of the sealing groove 41 is the same as the circumferential dimension of the tube wall between two adjacent notches 53 on the second end 52 of the atomization tube 5, ensuring that the sealing groove 41 can be in sealing engagement with the tube wall of the second end 52 of the atomization tube 5. After the atomization tube 5 is hermetically inserted into the sealing seat 4, the notch 53 of the atomization tube S and the sealing seat 4 together enclose to form the first through hole.

[0049] The e-liquid guiding member 6 is inserted into the second end 52 of the atomization tube 5. Referring to FIG. 1 to FIG. 5, the annular portion 61 of the e- liquid guiding member 6 is located inside the atomization tube 5, and the protruding portion 62 is located inside the notch 53 of the atomization tube 5. The structure of the atomization tube S provided with a plurality of notches 53 facilitates assembly of the e-liquid guiding member 6 and the atomization tube S and prevents crimping of the e-liquid guiding member 6. The e-liquid guiding member 6 is provided with two protruding portions 62 corresponding to the notches 53, and the two protruding portions 62 are arranged in the radial direction of the e-liquid guiding member 6. The protruding portion 62 is positioned within the notch 53, and the contour of the protruding portion 62 matches the contour of the side wall surface of the notch 53, which helps to ensure sealing engagement between the protruding portion 62 and the notch 53.

[0050] Both the first sealing surface 43 and the second sealing surface 44 are arranged on the outer end face of the sealing seat 4 facing away from the positioning recess 36. The first sealing surface 43 is located inside the sealing groove 41 in the radial direction of the sealing seat 4, and the second sealing surface 44 is located between two adjacent sealing grooves 41 in the circumferential direction of the sealing seat 4. The annular portion 61 of the e-liquid guiding member 6 is in sealing engagement with the first sealing surface 43 in the axial direction of the atomization tube 5, and the protruding portion 62 of the e-liquid guiding member 6 is in sealing engagement with the second sealing surface 44 in the axial direction of the atomization tube 5. In this way, the e-liquid guiding member 6 is in sealing engagement with the sealing seat 4 in the axial direction of the atomization tube 5, ensuring that the protruding portion 62 blocks the first through hole. It also ensures the sealing performance at the connection between the interior and exterior of the atomization tube 5 and the base, thereby improving the overall sealing performance of the atomization device.

[0051] Certainly, in other embodiments, the first sealing surface 43 on the sealing seat 4 may be spaced apart from the annular portion 61 of the e-liquid guiding member 6, with only the protruding portion 62 in axially sealing engagement with the second sealing surface 44. This configuration can also achieve the required sealing performance at the connection between the atomization tube 5 and the base.

[0052] Alternatively, in other embodiments, the provision of the sealing groove 41 on the sealing seat 4 may be eliminated. After the e-liquid guiding member 6 is inserted into the atomization tube 5, the end face of the e-liquid guiding member 6 can be flush with the end face of the second end 52 of the atomization tube 5. The end face of the e-liquid guiding member 6 and the end face of the second end 52 of the atomization tube S are both in axially sealing engagement with the axial outer end face of the sealing seat 4. This can also improve the sealing performance at the connection between the atomization tube S and the base.

[0053] In some embodiments, the sealing seat 4 is further provided with a flange 46 located radially outside the atomization tube 5. The flange 46 is arranged on the radial outer side wall of the sealing groove 41. The flange 46 extends along the axial direction of the atomization tube 5, and the flange 46 is in sealing engagement with the protruding portion 62 of the e-liquid guiding member 6 in the radial direction of the atomization tube 5.

[0054] Specifically, referring to FIG. 1 to FIG. 5, the flange 46 of the sealing seat 4 has a third sealing surface 45 that faces the atomization tube 5 in the axial direction of the atomization tube 5. The distance between the third sealing surface 45 and the bottom of the sealing groove 41 is greater than the distance between the second sealing surface 44 and the bottom of the sealing groove. This allows the flange 46 to be arranged projecting beyond the second sealing surface 44. The flange 46 further has a radial sealing surface that faces the atomization tube 5 in the radial direction of the atomization tube 5. The flange 46 is in sealing engagement with the protruding portion 62 of the e-liquid guiding member 6 in the radial direction of the atomization tube 5 by means of its radial sealing surface to improve the sealing performance at the first through hole.

[0055] It should be noted, referring to FIG. 1 to FIG. 5, that the minimum radial dimension of the e-liquid guiding member 6 at its protruding portion 62 is equal to the outer diameter of the atomization tube 5. The outer end face of the protruding portion 62 in the radial direction of the e-liquid guiding member 6 is a flat surface. In this way, the entire protruding portion 62 has a section that protrudes beyond the outer peripheral surface of the atomization tube 5. Due to the substantial deformation capability of the sealing seat 4 and the fact that the e-liquid guiding member 6 may be e-liquid guiding cotton (which also deforms under compression), both the sealing seat 4 and the e-liquid guiding member 6 may deform. This deformation allows the protruding portion 62 to be positioned radially inward of the flange 46 of the sealing groove 41, thereby achieving radial sealing engagement between the protruding portion 62 and the sealing seat 4.

[0056] Certainly, in some other embodiments, provided that the axial sealing engagement between the e-liquid guiding member 6 and the sealing seat 4 already provides sufficient sealing, the sealing seat 4 may not be provided with the flange 46. The third sealing surface 45 may be coplanar with the second sealing surface 44, which facilitates the manufacturing of the sealing seat 4.

[0057] In some embodiments, the second sealing surface 44 is coplanar with the first sealing surface 43. Referring to FIG. 4 and FIG. 5, this makes the end face of the annular portion 61 facing the base coplanar with the end face of the protruding portion 62 facing the base, which facilitates the manufacturing of the sealing seat 4 and the entire e-liquid guiding member 6. Certainly, the first sealing surface 43 and the second sealing surface 44 may alternatively be non-coplanar, meaning that the end face of the annular portion 61 facing the base and the end face of the protruding portion 62 facing the base are not required to be coplanar. The essential requirement is that axial sealing engagement is implemented between the first sealing surface 43 and the annular portion 61, and likewise, axial sealing engagement is implemented between the second sealing surface 44 and the protruding portion 62.

[0058] In some embodiments, referring to FIG. 1, FIG. 2, and FIG. 4, the e-liquid storage member 71 is annular e-liquid storage cotton. The e-liquid storage member 71 extends along the length direction of the atomization tube 5 and is sleeved around atomization tube 5. The e-liquid storage member 71 has an inner side wall that fits the outer tube wall of the atomization tube 5. The inner side wall of the e-liquid storage member 71 blocks the radially outer opening of the second through hole 54 and the first through hole, while the annular portion 61 of the e-liquid guiding member 6 blocks the radially inner opening of the second through hole 54. The protruding portion 62 of the e-liquid guiding member 6 is located inside the first through hole. After the e-liquid storage member 71 and the e-liquid guiding member 6 expand and deform, the e-liquid guiding member 6 and the e-liquid storage member 71 can contact each other at both the second through hole 54 and the first through hole. This contact facilitates the absorption of e-liquid from the e-liquid storage member 71 by the e-liquid guiding member 6, enabling the transfer of e-liquid between the inside and outside of the atomization tube 5. Furthermore, the structure of the e-liquid storage member 71 arranged outside the atomization tube 5 to block the second through hole 54 and the first through hole can reduce the amount of e-liquid within the e-liquid guiding member 6, preventing excess e-liquid in the e-liquid guiding member 6 from leaking out before it can be atomized.

[0059] During assembly of the e-liquid storage member 71, two axial ends of the e- liquid storage member 71 form a sealed and positioned fit with the outer flange 22 of the sealing ring 2 and the third sealing surface 45 located on the flange 46 of the sealing seat 4, respectively, along the axial direction of the atomization tube. After the e-liquid storage member 71 absorbs e-liquid and expands, the e-liquid storage member 71 is in sealing engagement with the sealing ring 2 and the sealing seat 4 separately, which also helps improve the sealing at the connections between the atomization tube 5 and both the base and the housing.

[0060] In some embodiments, the e-liquid chamber is located radially outward of the atomization tube 5. The base is provided with a mounting recess 31 with an opening facing toward the e-liquid chamber. The e-liquid storage member 71 is fully embedded in the mounting recess 31, forming the embedded portion.

[0061] Specifically, referring to FIG. 1 to FIG. 4, the large cylinder 11, the small cylinder 12, the sealing ring 2, the atomization tube 5, the sealing seat 4, and the base body 3 together enclose to form the e-liquid chamber. The e-liquid chamber is located radially outside the atomization tube 5. The e-liquid storage member 71, located inside the e-liquid chamber, transfers the absorbed e-liquid to the e-liquid guiding member 6 through the second through hole 54 and the first through hole. The base body 3 is provided with the mounting recess 31 with the opening facing toward the e- liquid chamber. The positioning recess 36 for mounting the sealing seat 4 is located on the bottom wall of the mounting recess 31. The side wall of the mounting recess 31 has a radially inner surface and a radially outer surface. The radially outer surface is in sealing engagement with the inner wall of the large cylinder 11. The radially inner surface is configured to radially limit the expansion size of the embedded portion, preventing the e-liquid storage member 71 from absorbing too much e-liquid and thus reducing the residual e-liquid rate of the atomization device. The entire e-liquid storage member 71 is embedded in the mounting recess 31 of the base body 3, and the entire e-liquid storage member 71 forms the embedded portion. The axial end face of the e-liquid storage member 71 facing the e-liquid chamber is flush with the opening end face of the mounting recess 31 of the base body 3. Alternatively, the axial end face of the e-liquid storage member 71 facing the e-liquid chamber may be located on the side of the opening end face of the mounting recess 31 that faces away from the e- liquid chamber. Alternatively, in other embodiments, the e-liquid storage member 71 may further include two portions: one portion embedded in the mounting recess 31 of the base body 3 to form an embedded portion, and the other portion protruding from the base body 3 and exposed within the e-liquid chamber to absorb the e-liquid in the e-liquid chamber.

[0062] Certainly, in other embodiments, the radially outer surface of the side wall of the mounting recess 31 may be spaced apart from the inner wall of the large cylinder 11. Only the radially inner surface of the side wall of the mounting recess 31 limits the expansion size of the embedded portion of the e-liquid storage member 71 to reduce the residual e-liquid rate of the atomization device.

[0063] In some embodiments, the base is provided with an e-liquid-inlet passage 37 and an annular recess 34 with an opening facing away from the e-liquid chamber. The annular recess 34 is in communication with the e-liquid chamber through the e-liquid- inlet passage 37. The atomization device further includes an e-liquid-filling plug 72 and an e-liquid absorbing member 73. The e-liquid-filling plug 72 blocks the e-liquid- inlet passage 37. The e-liquid absorbing member 73 may be liquid-absorbing cotton and is positioned and mounted within the annular recess 34.

[0064] Specifically, referring to FIG. 1 to FIG. 3 and FIG. 5, two e-liquid-inlet passages 37 are provided and are arranged radially on the base body 3. The e-liquid- inlet passages 37 pass through the mounting recess 31 and are in communication with the e-liquid chamber. The e-liquid-inlet passages 37 have an e-liquid inlet that faces away from the e-liquid chamber. The e-liquid-filling plug 72 may be made of a rubber material. The e-liquid-filling plug 72 can block the e-liquid inlet to block the e-liquid- inlet passage 37. The opening of the annular recess 34 is arranged facing away from the e-liquid chamber. The e-liquid-inlet passages 37 are arranged on the bottom wall of the annular recess 34. The e-liquid absorbing member 73 is configured as an annular structure and is positioned and mounted within the annular recess 34 to absorb the e-liquid flowing out of the e-liquid-inlet passages 37, preventing the e- liquid from leaking outside the atomization device.

[0065] Certainly, in some other embodiments, under the condition that the sealing between the e-liquid-filling plug 72 and the e-liquid inlet is effective, the e-liquid absorbing member 73 may be omitted.

[0066] In some embodiments, the atomization device further includes a sealing member 8 and a fixing member 74. The sealing member 8 is located on the side of the e-liquid absorbing member 73 that faces away from the e-liquid chamber. The sealing member 8 and the annular recess 34 together enclose to form an annular e-liquid- absorbing chamber. The fixing member 74 is mounted on the side of the sealing member 8 that faces away from the e-liquid chamber, and the fixing member 74 is fixedly connected to the housing.

[0067] Specifically, referring to FIG. 1, FIG. 2, and FIG. 5, the sealing member 8 is an annular sealing gasket made of a rubber material, which has good deformability. The radially inner side of the sealing member 8 has a first flange 82 facing the e-liquid chamber, and the radially outer side has a second flange 83 facing away from the e- liquid chamber. The radially outer side of the sealing member 8 is in sealing engagement with the radially outer side wall of the annular recess 34. The second flange 83 is located on the radially inner side of the base body 3 and fits against the base body 3. The first flange 82 can extend into the annular recess 34 and fit against the radially inner side wall of the annular recess 34. In this way, the sealing member 8 and the annular recess 34 together enclose to form an annular e-liquid-absorbing chamber. The fixing member 74 is configured as an annular structure. The radially outer side wall of the fixing member 74 is located on the radially outer side of the outer side wall of the large cylinder 11 and is fixedly connected to the outer side wall of the large cylinder 11 by a snap-fit. The radially inner side wall of the fixing member 74 extends from the radially inner side of the base body 3 toward the e-liquid chamber to secure the position of the sealing member 8.

[0068] The atomization device further includes a circuit board 75. The circuit board 75 is located between the sealing member 8 and the fixing member 74. The radially inner side wall of the fixing member 74 presses on the circuit board 75 in the axial direction of the atomization tube 5, thus fixing positions of both the circuit board 75 and the sealing member 8.

[0069] In some embodiments, the circuit board 75 is provided with a through-hole for gas to pass through. The sealing seat 4 has a central through hole 42 coaxial with the atomization tube 5. The air inlet of the base is located on the base body 3. The base body 3 further has an air-inlet passage. The through-hole of the circuit board 75 can be in communication with the central passage of the atomization tube 5 sequentially through the air inlet, the air-inlet passage, and the central through hole 42. In this way, the circuit board 75, the base body 3, the sealing seat 4, the atomization tube 5, the sealing ring 2, and the small cylinder 12 together enclose to form a gas passage that allows gas to enter from the through-hole of the circuit board 75 and exit from the air outlet 121 of the housing.

[0070] Referring to FIG. 1 to FIG. 3, the air-inlet passage on the base body 3 is located radially inside the annular recess 34. An e-liquid-blocking baffle 35 is provided within the air-inlet passage. The middle of the e-liquid-blocking baffle 35 protrudes toward the e-liquid chamber. The side of the e-liquid-blocking baffle 35 facing the e-liquid chamber has a flow guiding surface 351, which is configured to guide condensed e-liquid from the central through hole 42 and the central passage, and direct the condensed e-liquid into the annular recess 34 to be absorbed by the e- liquid absorbing member 73.

[0071] Specifically, the base body 3 is further provided with a recess 32 having an opening facing away from the e-liquid chamber. The opening of the recess 32 forms the air inlet. The e-liquid-blocking baffle 35 is configured to separate the positioning recess 36 from the recess 32 to form a common bottom wall for the recess 32 and the positioning recess 36. The inner side wall of the annular recess 34 of the base body 3 is further provided with a lateral notch 33. The e-liquid-blocking baffle 35 is positioned at the lateral notch 33, dividing the lateral notch 33 into a first part on the side of the e-liquid-blocking baffle 35 facing away from the e-liquid chamber and a second part on the side of the e-liquid-blocking baffle 35 facing the e-liquid chamber. The air inlet can be in communication with the annular e-liquid-absorbing chamber through the first part of the lateral notch 33. The annular e-liquid-absorbing chamber can also be in communication with the central through hole 42 of the sealing seat 4 through the second part of the lateral notch 33. The first and second parts of the lateral notch 33 are also in communication with each other. In this way, the gas from the air inlet on the base body 3 can be in communication with the central through hole 42 of the sealing seat 4 through the lateral notch 33 to form the air-inlet passage. Referring to FIG. 2, the dashed arrow shows a gas flow path.

[0072] Furthermore, the middle of the e-liquid-blocking baffle 35 protrudes toward the opening of the positioning recess 36, that is, toward the e-liquid chamber. The side of the e-liquid-blocking baffle 35 facing the e-liquid chamber has a flow guiding surface 351. The flow guiding surface 351 can receive the condensate from the central passage of the atomization tube 5 and from the central through hole 42 of the sealing seat 4. The flow guiding surface 351 can also guide the condensate into the annular e- liquid-absorbing chamber to be absorbed by the e-liquid absorbing member 73. To prevent the condensate from leaking along the air-inlet passage from the circuit board 75, a guiding surface 81 is provided on the radial inner wall of the sealing member 8. The condensate, guided by the flow guiding surface 351, flows under gravity to the guiding surface 81, and is then further guided by the guiding surface 81 to the contact position between the e-liquid absorbing member 73 and the sealing member 8, where the condensate is ultimately absorbed by the e-liquid absorbing member 73.

[0073] Additionally, the atomization device is provided with a heating element 9 inside the atomization tube 5. The heating element 9 is configured with a heating electrode 91. To ensure electrical connection between the heating electrode 91 and an external power supply apparatus, an electrode lead-through is provided on the e- liquid-blocking baffle 35. The heating electrode 91 passes through the electrode lead- through and is in sealing engagement with the electrode lead-through. The portion of the heating electrode 91 that extends through the electrode lead-through is electrically connected to the circuit board 75.

[0074] The present disclosure further discloses an atomizer, which may be an e- cigarette. The atomizer includes a power supply apparatus and the atomization device of any of the embodiments mentioned above. The power supply apparatus is configured to power the atomization device. The power supply apparatus and the atomization device are detachably connected to facilitate injecting e-liquid into the atomization device. The power supply apparatus and the atomization device can be detachably connected by magnetic adsorption. To ensure accurate engagement between a connection electrode of the power supply apparatus and the circuit board 75, a positioning structure may be provided on the atomization device and the power supply apparatus, such as a positioning protrusion and a positioning recess 32, to achieve accurate positioning and engagement of the atomization device with the power supply apparatus.

[0075] Furthermore, electrode contacts may be provided on the circuit board 75 that are electrically connected to the atomization device, such as a circular contact and an annular contact pad on the circuit board 75. This allows the power supply apparatus to be electrically connected to the atomization device without being limited by a circumferential position.

[0076] The specific examples above have been used to illustrate the present disclosure, but they are only intended to help understand the present disclosure and are not meant to limit the present disclosure. Those skilled in the art of the present disclosure may make several simple deductions, modifications, or substitutions based on the ideas of the present disclosure.

Claims

1. An atomization device, comprising: a housing having a first opening and an air outlet;a base hermetically mounted at the first opening, the base being provided with an air inlet;an atomization tube disposed inside the housing, the atomization tube being in communication with the air inlet and the air outlet, the atomization tube, the housing, and the base defining an e-liquid chamber, the atomization tube being provided with an e-liquid inlet; andan e-liquid storage member disposed within the e-liquid chamber, the e-liquid storage member surrounding the atomization tube, the e-liquid storage member having an embedded portion embedded in the base, the embedded portion blocking the e- liquid inlet.

2. The atomization device according to claim 1, wherein the atomization tube has a first end and a second end arranged along its longitudinal direction, the first end being in sealing engagement with the housing, and the second end being in sealing engagement with the base; the e-liquid inlet comprises a notch, the notch being provided at the second end of the atomization tube, the notch and the base together enclosing to form a first through hole; andthe atomization device further comprises an e-liquid guiding member, the e- liquid guiding member having a protruding portion located within the notch, the protruding portion blocking the first through hole.

3. The atomization device according to claim 2, wherein the base comprises a base body and a sealing seat, the base body being provided with a positioning recess, the sealing seat being disposed in the positioning recess, the base body being in sealing engagement with the second end by means of the sealing seat, and the base body further being in sealing engagement with the e-liquid guiding member and the e- liquid storage member in an axial direction of the atomization tube by means of the sealing seat.

4. The atomization device according to claim 3, wherein the sealing seat is provided with a sealing groove fitted in sealing engagement with the tube wall of the second end, and, in the axial direction of the atomization tube, an axial end portion of the sealing seat and the notch together enclose to form the first through hole; and the e-liquid guiding member further comprises an annular portion disposed radially inside the atomization tube, the axial end portion of the sealing seat being further in axial sealing engagement with the annular portion.

5. The atomization device according to claim 3, wherein the sealing seat has a flange located radially outside the atomization tube, the flange being in sealing engagement with the e-liquid storage member in the axial direction of the atomization tube, and the flange being in sealing engagement with the protruding portion in a radial direction of the atomization tube.

6. The atomization device according to any one of claim 1, wherein the base is provided with a mounting recess with an opening facing the e-liquid chamber, the e- liquid storage member being completely embedded within the mounting recess.

7. The atomization device according to any one of claim 1, wherein the base is provided with an e-liquid-inlet passage and an annular recess with an opening facing away from the e-liquid chamber, and the annular recess being in communication with the e-liquid chamber through the e-liquid-inlet passage; andthe atomization device further comprises an e-liquid-filling plug and an e-liquid absorbing member, the e-liquid-filling plug blocking the e-liquid-inlet passage, and the e-liquid absorbing member being positioned in the annular recess.

8. The atomization device according to claim 7, wherein the base is provided with an air-inlet passage, the air-inlet passage being in communication with the air inlet and a central passage of the atomization tube, an e-liquid-blocking baffle being arranged inthe air-inlet passage, the e-liquid-blocking baffle having a flow guiding surface facing the e-liquid chamber, the flow guiding surface being configured for guiding condensed e-liquid from the central passage and the air-inlet passage to the annular recess.

9. The atomization device according to claim 8, wherein the atomization device further comprises a fixing member and a sealing member, the fixing member being fixedly connected to the housing, the sealing member being disposed between the fixing member and the e-liquid absorbing member, the sealing member and the annular recess together enclosing to form an annular e-liquid absorbing chamber, the sealing member having a guiding surface for guiding the condensed e-liquid into the annular e-liquid absorbing chamber.

10. The atomization device according to claim 1, wherein the housing comprises a housing body and a sealing ring, the housing body being in sealing engagement with the first end by means of the sealing ring, and the sealing ring further being in sealing engagement with the e-liquid storage member in the axial direction of the atomization tube.

11. The atomization device according to claim 4, wherein the e-liquid inlet further comprises a second through hole located on the tube wall of the atomization tube; and the annular portion of the e-liquid guiding member is configured to block the second through hole.

12. The atomization device according to claim 10, wherein the sealing ring is sleeved on the first end of the atomization tube, and the sealing ring is configured to limit the relative position of the sealing ring and the atomization tube in a length direction of the atomization tube.

13. The atomization device according to claim 2, wherein the minimum radial dimension of the e-liquid guiding member at its protruding portion is equal to the outer diameter of the atomization tube, and an outer surface of the protruding portion facing the e-liquid chamber is configured as a flat surface.

14. The atomization device according to claim 4, wherein a first sealing surface and a second sealing surface are arranged on an end face of the sealing seat facing away from the positioning recess; and the annular portion of the e-liquid guiding member is in sealing engagement with the first sealing surface in the axial direction of the atomization tube, and the protruding portion of the e-liquid guiding member is in sealing engagement with the second sealing surface in the axial direction of the atomization tube.

15. The atomization device according to claim 1, wherein the e-liquid storage member is configured as annular e-liquid-storage cotton.

16. The atomization device according to claim 11, wherein the e-liquid storage member extends along the length direction of the atomization tube and is sleeved around the atomization tube; and the e-liquid storage member is configured to conform to the atomization tube and block the second through hole and the first through hole.

17. The atomization device according to claim 10, wherein axial ends of the e- liquid storage member form a sealed and positioned fit with the sealing ring and the sealing seat, respectively, along the axial direction of the atomization tube.

18. The atomization device according to claim 3, wherein the base is provided with a mounting recess with an opening facing the e-liquid chamber, the e-liquid storage member being completely embedded within the mounting recess.

19. The atomization device according to claim 4, wherein the base is provided with an e-liquid-inlet passage and an annular recess with an opening facing away from the e-liquid chamber, and the annular recess being in communication with the e-liquid chamber through the e-liquid-inlet passage; andthe atomization device further comprises an e-liquid-filling plug and an e-liquid absorbing member, the e-liquid-filling plug blocking the e-liquid-inlet passage, and the e-liquid absorbing member being positioned in the annular recess.

20. An atomizer, comprising a power supply apparatus and the atomization device according to claim 1.

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