Additional e-liquid tank and aerosol generating device

Abstract

Embodiments of the utility model provide an additional e-liquid tank (10) and an aerosol generating device. The additional e-liquid tank (10) includes a housing assembly (11) and a seal member (12). The housing assembly (11) is provided with an additional storage cavity (11a) and an insertion hole (11b). The insertion hole (11b) is in communication with the additional storage cavity (11a) and an exterior of the additional e-liquid tank (10). The additional storage cavity (11a) is configured to store an aerosol generating substrate. The seal member (12) includes a blocking portion (121) and an elastic reset portion (122). The blocking portion (121) is arranged in the additional storage cavity (11a) and blocks the insertion hole (11b). A part of the elastic reset portion (122) is fixed relative to the housing assembly (11). The insertion hole (11b) is configured for insertion of the atomizer (20) to push the blocking portion (121) to be separated from the insertion hole (11b). In a state in which the blocking portion (121) is separated from the insertion hole (11b), the elastic reset portion (122) is elastically deformed to cause the blocking portion (121) to generate a movement tendency to move toward the insertion hole (11b) to block the insertion hole (11b). In the additional e-liquid tank (10) in the embodiments of the utility model, after the atomizer (20) is pulled out from the insertion hole (11b), the blocking portion (121) blocks the insertion hole (11b) again, thereby reducing a probability of leakage of the aerosol generating substrate in the additional storage cavity (11a) after the additional e-liquid tank (10) is removed from the aerosol generating device.

Description

TECHNICAL FIELD

[0001] Embodiments of the utility model relates to the field of atomization technologies, and in particular, to an additional e-liquid tank and an aerosol generating device.BACKGROUND

[0002] An aerosol generating device is configured to generate an aerosol for a user to inhale.

[0003] The aerosol generating device includes an atomizer and an additional e-liquid tank. An atomization core can absorb an aerosol generating substrate and convert the aerosol generating substrate into the aerosol. After the aerosol generating substrate in the atomizer is consumed to a certain extent, the aerosol generating substrate stored in the additional e-liquid tank enters the atomizer through an outlet thereof for supplementing. Therefore, a service life of the aerosol generating device is prolonged.

[0004] In the related art, a detachable configuration is provided between the additional e-liquid tank and the atomizer, so that an old additional e-liquid tank is removed and a new additional e-liquid tank is replaced after the aerosol generating substrate in the additional e-liquid tank is used up.

[0005] After the additional e-liquid tank is removed and separated from the atomizer, a small amount of aerosol generating substrate still remains. If the residual aerosol generating substrate leaks, the residual aerosol generating substrate may adhere to a position such as clothes, belongings, or hands of a user, which is not beneficial to user experience, and may also cause pollution to an ambient environment.SUMMARY

[0006] In view of the above, embodiments of the utility model are intended to an additional e-liquid tank and an aerosol generating device, which can reduce a risk of leakage of a residual aerosol generating substrate after removal.

[0007] To achieve the foregoing objective, technical solutions in the embodiments of the utility model are implemented as follows.

[0008] The embodiments of the utility model provide an additional e-liquid tank, which is configured to provide an aerosol generating substrate to an atomizer. The additional e-liquid tank includes: a housing assembly, provided with an additional storage cavity and an insertion hole, where the insertion hole is in communication with the additional storage cavity and an exterior of the additional e-liquid tank, and the additional storage cavity is configured to store the aerosol generating substrate; and a seal member, including a blocking portion and an elastic reset portion, where the blocking portion is arranged in the additional storage cavity and blocks the insertion hole, a part of the elastic reset portion is fixed relative to the housing assembly, the insertion hole is configured for insertion of the atomizer to push the blocking portion to be separated from the insertion hole, and in a state in which the blocking portion is separated from the insertion hole, the elastic reset portion is elastically deformed to cause the blocking portion to generate a movement tendency to move toward the insertion hole to block the insertion hole.

[0009] In some embodiments, a plurality of elastic reset portions are arranged, the insertion hole extends along a first direction, the elastic reset portions extend perpendicular to the first direction, and the elastic reset portions are uniformly arranged around the blocking portion with an axis extending along the first direction.

[0010] In some embodiments, two elastic reset portions are arranged, a ratio of a dimension of the elastic reset portion along a second direction to a dimension of the elastic reset portion along the first direction is not less than 3.

[0011] In some embodiments, the first direction, the second direction, and an extension direction of the elastic reset portion are perpendicular to each other.

[0012] In some embodiments, the housing assembly includes a first housing and a second housing, the seal member further includes a seal portion, the elastic reset portion is connected between the blocking portion and the seal portion, a mounting space is arranged in the second housing, a side of the mounting space is open, the first housing is arranged to cover an open area of the mounting space to form the additional storage cavity together with the second housing, the seal portion is sandwiched between the first housing and the second housing, and the insertion hole is provided on at least one of the first housing and the second housing.

[0013] In some embodiments, the insertion hole extends through the first housing, a side of the mounting space along the first direction is open, the insertion hole extends along the first direction, an inner wall of the mounting space is provided with a stop rib extending along the first direction, and the stop rib is located on a side of the seal portion that faces away from the first housing and is in stop-fit with the seal portion along the first direction.

[0014] In some embodiments, the additional e-liquid tank further includes a seal plug, the seal plug includes a seal block, the housing assembly is further provided with a liquid injection hole, the liquid injection hole is in communication with the additional storage cavity and the exterior of the additional e-liquid tank, and the seal block is configured to block the liquid injection hole from the exterior of the housing assembly.

[0015] In some embodiments, the seal plug includes a seal ring, the seal ring is provided with an avoidance hole extending through the seal ring, at least part of the seal ring is located in the insertion hole and hermetically attached to an inner wall of the insertion hole, and the avoidance hole is configured for insertion of the atomizer to enter the insertion hole.

[0016] In some embodiments, an edge of a connecting opening between the insertion hole and the additional storage cavity is provided with a chamfer.

[0017] In some embodiments, an edge of the blocking portion facing a side of the insertion hole is provided with a chamfer.

[0018] The embodiments of the utility model further provide an aerosol generating device, the aerosol generating device includes an atomizer and the additional e-liquid tank of any one of the foregoing embodiments, the atomizer includes a mounting assembly and an atomization core, the mounting assembly is provided with an accommodating cavity therein, the accommodating cavity is provided with the atomization core therein, the mounting assembly is provided with an insertion column, the insertion column is provided with an exchange channel, the exchange channel is in communication with the accommodating cavity and an exterior of the atomizer, the insertion column is provided with an exchange hole, the exchange hole extends through the insertion column, and the exchange hole is in communication with the exchange channel and the additional storage cavity in a state in which the insertion column pushes the seal member to be separated from the insertion hole.

[0019] In some embodiments, the aerosol generating device includes a plurality of exchange holes, where at least some of the exchange holes are located above the exchange channel along an axial direction of the aerosol generating device.

[0020] In some embodiments, the mounting assembly is provided with an air outlet channel therein, the air outlet channel is in communication with an atomization cavity in the atomization core and the exterior of the atomizer, and an axial direction of the insertion column is perpendicular to an air outlet direction of the air outlet channel.

[0021] In some embodiments, the insertion column and the insertion hole both extend along a first direction, the exchange hole is located on a side of the insertion column perpendicular to the first direction, and the exchange hole is open along the first direction and on a side close to the blocking portion.

[0022] In some embodiments, the atomization core and an inner wall of the accommodating cavity jointly define a main storage cavity, the main storage cavity is in communication with the exchange channel, the atomizer further includes a liquid storage member, the liquid storage member is located in the main storage cavity, the liquid storage member is provided with a pore to absorb an aerosol generating substrate through a capillary action, and the liquid storage member is in fluid communication with the atomization core.

[0023] In one aspect, the additional e-liquid tank in the embodiments of the utility model can, through an elastic force exerted by the elastic reset portion on the blocking portion, help keep the position of the blocking portion in the additional storage cavity and reduce an abnormal sound generated by sway of the blocking portion in the additional storage cavity in a state in which the atomizer is inserted into the insertion hole. In another aspect, the blocking portion is facilitated to block the insertion hole again after the atomizer is pulled out from the insertion hole, thereby reducing a probability of leakage of the aerosol generating substrate in the additional storage cavity after the additional e-liquid tank is removed from the aerosol generating device.BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic diagram of an additional e-liquid tank according to an embodiment of the utility model. FIG. 2 is a schematic diagram of an embodiment in FIG. 1 from another perspective. FIG. 3 is a schematic cutaway axonometric view of an embodiment in FIG. 2, where a cutaway position is at a position A-A. FIG. 4 is a schematic cutaway diagram of an embodiment in FIG. 2, where a cutaway position is at a position B-B. FIG. 5 is a schematic diagram of a seal member according to an embodiment of the utility model. FIG. 6 is a schematic diagram of a seal plug according to an embodiment of the utility model. FIG. 7 is a schematic diagram of an aerosol generating device according to an embodiment of the utility model. FIG. 8 is a schematic diagram of an embodiment in FIG. 7 from another perspective. FIG. 9 is a schematic cutaway view of an embodiment in FIG. 8 at a position C-C. FIG. 10 is a partial schematic enlarged view of a position D in FIG. 9. FIG. 11 is a schematic diagram of an atomizer according to an embodiment of the utility model. DESCRIPTION OF REFERENCE NUMERALS

[0025] 10. Additional e-liquid tank; 11. Housing assembly; 11a. Additional storage cavity; 11b. Insertion hole; 11c. Liquid injection hole; 111. First housing; 112. Second housing; 1121. Stop rib; 12. Seal member; 121. Blocking portion; 122. Elastic reset portion; 123. Seal portion; 13. Seal plug; 131. Seal block; 132. Seal ring; 132a. Avoidance hole; 133. Seal base; 20. Atomizer; 21. Mounting assembly; 21a. Accommodating cavity; 21b. Air outlet channel; 21c. Main storage cavity; 211. Insertion column; 211a. Exchange channel; 211b. Exchange hole; 22. Atomization core; 23. Liquid storage member. DETAILED DESCRIPTION

[0026] It should be noted that technical features in embodiments of the utility model may be mutually combined in case of no conflict. The detailed descriptions in specific implementations should be understood as explanatory descriptions of ideas of the embodiments of the utility model, and should not be considered as improper limitations to the embodiments of the utility model.

[0027] In descriptions of the embodiments of the utility model, an orientation or position relationship of a "first direction" is based on an orientation or position relationship shown by an arrow X in FIG. 3 and FIG. 9. An orientation or position relationship of a "second direction" is based on an orientation or position relationship shown by an arrow Y in FIG. 5. Orientations or position relationships indicated by an "air outlet direction of an air outlet channel" and an "axial direction of an aerosol generating device" are based on an orientation or position relationship shown by an arrow Z in FIG. 7, FIG. 9, and FIG. 11, where "above" refers to a direction of z1 and "below" refers to a direction of z2. It should be understood that these orientation terms are merely used for facilitating description of the embodiments of the utility model and simplifying the description, rather than indicating or implying that the mentioned devices or elements need to have a particular orientation or need to be constructed and operated in a particular orientation. Therefore, the terms should not be understood as a limitation on the embodiments of the utility model.

[0028] The embodiments of the utility model provide an additional e-liquid tank. The additional e-liquid tank stores an aerosol generating substrate. The additional e-liquid tank is arranged in an aerosol generating device, and is configured to provide the aerosol generating substrate to an atomizer, so that after the aerosol generating substrate stored in the atomizer is used up, the additional e-liquid tank can continue to replenish the aerosol generating substrate to the atomizer to prolong a service life. The additional e-liquid tank is in a detachable connection with another component of the aerosol generating device, so as to be replaced after the aerosol generating substrate stored in the additional e-liquid tank is used up.

[0029] Referring to FIG. 1 to FIG. 3, the additional e-liquid tank 10 includes a housing assembly 11 and a seal member 12.

[0030] The housing assembly 11 is provided with an additional storage cavity 11a and an insertion hole 11b. The insertion hole 11b is in communication with the additional storage cavity 11a and an exterior of the additional e-liquid tank 10, and the additional storage cavity 11a is configured to store the aerosol generating substrate.

[0031] The seal member 12 includes a blocking portion 121 and an elastic reset portion 122. The blocking portion 121 is arranged in the additional storage cavity 11a and blocks the insertion hole 11b. A part of the elastic reset portion 122 is fixed relative to the housing assembly 11. The insertion hole 11b is configured for insertion of the atomizer 20 to push the blocking portion 121 to separate from the insertion hole 11b. In a state in which the blocking portion 121 is separated from the insertion hole 11b, the elastic reset portion 122 is elastically deformed to cause the blocking portion 121 to generate a movement tendency to move toward the insertion hole 11b to block the insertion hole 11b.

[0032] The aerosol generating substrate is a fluid.

[0033] The blocking portion 121 is configured to cover an opening at a position in which the insertion hole 11b communicates with the additional storage cavity 11a.

[0034] In a state in which the blocking portion 121 blocks the insertion hole 11b, the insertion hole 11b is not in communication with the additional storage cavity 11a, and the aerosol generating substrate in the additional storage cavity 11a cannot flow out of the additional e-liquid tank 10 through the insertion hole 11b.

[0035] At least part of the atomizer 20 is inserted into the insertion hole 11b until the atomizer abuts against the blocking portion 121, and the blocking portion 121 is pushed to move, so that the blocking portion 121 is separated from the insertion hole 11b, to cause the atomizer 20 to be in communication with the additional storage cavity 11a and cause the aerosol generating substrate in the additional storage cavity 11a to enter the atomizer 20.

[0036] The elastic reset portion 122 can be elastically deformed under an external force, so as to expand and contract with movement of the blocking portion 121.

[0037] It may be understood that the atomizer 20 pushes the blocking portion 121 to move relative to the housing assembly 11 until the blocking portion 121 is separated from the housing assembly 11, to achieve an effect of releasing the blocking effect on the insertion hole 11b by the blocking portion 121. In a process of moving the blocking portion 121, the elastic reset portion 122 causes a part connected to the blocking portion 121 to move relative to a part that is fixed relative to the housing assembly 11 through elastic deformation, so that the elastic reset portion 122 exerts an elastic force on the blocking portion 121.

[0038] In a state in which the atomizer 20 is abutted against the blocking portion 121, although the blocking portion 121 is caused to have a movement tendency to move toward the insertion hole 11b due to an elastic force exerted by the elastic reset portion 122, an abutted force exerted by the atomizer 20 on the blocking portion 121 is balanced with an elastic force exerted by the elastic reset portion 122 on the blocking portion 121, so that the position of the blocking portion 121 is relatively fixed, and the aerosol generating substrate in the additional storage cavity 11a can stably flow into the atomizer 20. In a state in which the additional e-liquid tank 10 is separated from the atomizer 20 for replacement, the atomizer 20 is separated from the insertion hole 11b, so that the blocking portion 121 is no longer be subjected to the abutted force exerted by the atomizer 20 on the blocking portion. Under an action of the elastic force exerted by the elastic reset portion 122 on the blocking portion 121, the seal member 12 moves toward the insertion hole 11b until the blocking portion 121 is abutted against the housing assembly 11 and blocks the insertion hole 11b again.

[0039] It may be understood that after the atomizer 20 is separated from the insertion hole 11b, in a state in which the blocking portion 121 blocks the insertion hole 11b, the elastic reset portion 122 is in the elastically deformed state, so that the blocking portion 121 maintains the state of blocking the insertion hole 11b.

[0040] In one aspect, the additional e-liquid tank 10 in the embodiments of the utility model can, through an elastic force exerted by the elastic reset portion 122 on the blocking portion 121, help keep the position of the blocking portion 121 in the additional storage cavity 11a and reduce an abnormal sound generated by sway of the blocking portion 121 in the additional storage cavity 11a in a state in which the atomizer 20 is inserted into the insertion hole 11b. In another aspect, the blocking portion 121 is facilitated to block the insertion hole 11b again after the atomizer 20 is pulled out from the insertion hole 11b, thereby reducing a probability of leakage of the aerosol generating substrate in the additional storage cavity 11a after the additional e-liquid tank 10 is removed from the aerosol generating device.

[0041] In some embodiments, the blocking portion 121 is made of food-grade silica gel. In one aspect, a probability that the blocking portion 121 may pollute the aerosol generating substrate in the additional storage cavity 11a is reduced. In another aspect, due to the elastic force generated by the elastic reset portion 122 on the blocking portion 121, the blocking portion 121 can be elastically deformed, thereby helping the blocking portion 121 keep adhering to the housing assembly 11 and improving a sealing effect of the blocking portion 121.

[0042] In some embodiments, referring to FIG. 3, the elastic reset portion 122 is located in the additional storage cavity 11a. In this way, a probability that the elastic reset portion 122 is exposed to the exterior of the housing assembly 11 and damage is caused is avoided.

[0043] In some embodiments in which the elastic reset portion 122 is located in the additional storage cavity 11a, the elastic reset portion 122 is made of a food-grade material, for example, the food-grade silica gel, to reduce a probability that the blocking portion 121 may pollute the aerosol generating substrate in the additional storage cavity 11a.

[0044] In some embodiments, referring to FIG. 4 and FIG. 5, a plurality of elastic reset portions 122 are arranged, so that the elastic force can still be generated on the blocking portion 121 when the elastic force of some of the elastic reset portions 122 fails.

[0045] A plurality of elastic reset portions 122 means that a quantity of the elastic reset portions 122 is not less than 2.

[0046] In some embodiments in which a plurality of elastic reset portions 122 are arranged, referring to FIG. 3 to FIG. 5, the insertion hole 11b extends along a first direction, the elastic reset portions 122 extend perpendicular to the first direction, and the elastic reset portions 122 are uniformly arranged around the blocking portion 121 with an axis extending along the first direction.

[0047] Under a guiding effect of the insertion hole 11b, the atomizer 20 pushes the blocking portion 121 to move along the first direction, causing the elastic reset portion 122 to stretch, so that the elastic reset portion 122 generates the elastic force on the blocking portion 121.

[0048] After the elastic reset portion 122 is stretched, the elastic force generated by the elastic reset portion 122 on the blocking portion 121 may be decomposed into a first component force along the first direction and a second component force perpendicular to the first direction. Under the action of the first component force, the blocking portion 121 is caused to move along the first direction. The elastic reset portions 122 are uniformly arranged, to cause the second component force generated by the elastic reset portions 122 to balance each other, which helps the position of the blocking portion 121 in the direction perpendicular to the first direction to be stable, thereby helping the blocking portion 121 accurately block the insertion hole 11b after the atomizer 20 is pulled out of the insertion hole 11b.

[0049] That the elastic reset portions 122 are uniformly arranged means that in the projection perpendicular to the first direction, included angles between geometric centers of projection profiles of any two adjacent elastic reset portions 122 are the same. For example, if two elastic reset portions 122 are arranged, the included angle between geometric centers of projection profiles of the two elastic reset portions 122 is 180°. For example, if three elastic reset portions 122 are arranged, the included angle between geometric centers of projection profiles of the two elastic reset portions 122 is 120°. If four elastic reset portions 122 are arranged, the included angle between geometric centers of projection profiles of the two elastic reset portions 122 is 90°.

[0050] In some embodiments, referring to FIG. 5, two elastic reset portions 122 are arranged, to simplify a structure of the seal member 12 and reduce production costs.

[0051] In an embodiment in which two elastic reset portions 122 are arranged, a ratio of a dimension of the elastic reset portion 122 along a second direction to a dimension of the elastic reset portion 122 along the first direction is not less than 3.

[0052] In an embodiment, the first direction, the second direction, and an extension direction of the elastic reset portion 122 are perpendicular to each other. In other words, referring to FIG. 3 and FIG. 5, the dimension of the elastic reset portion 122 along the second direction is L1, the dimension of the elastic reset portion 122 along the first direction is L2, and L1 / L2≥3.

[0053] In this way, a probability that the blocking portion 121 reverses along the axis perpendicular to the first direction is facilitated to suppress through the elastic reset portion 122, so that the blocking portion 121 blocks the insertion hole 11b more smoothly.

[0054] In some embodiments, referring to FIG. 3 and FIG. 5, a connection position between the elastic reset portion 122 and the blocking portion 121 is located on a side of the blocking portion 121 facing away from the insertion hole 11b along the first direction.

[0055] In this way, a probability that the elastic reset portion 122 interferes the contact between the blocking portion 121 and the housing assembly 11 is reduced, which helps enlarge a contact area between the elastic reset portion 122 and the blocking portion 121 to improve connection strength and reduce a dimension of the blocking portion 121 along the first direction.

[0056] In some embodiments in which a plurality of elastic reset portions 122 are arranged, referring to FIG. 4 and FIG. 5, the elastic reset portions 122 are connected to each other, to improve connection strength between the elastic reset portion 122 and the blocking portion 121.

[0057] In some embodiments, referring to FIG. 3 to FIG. 5, the housing assembly 11 includes a first housing 111 and a second housing 112. The seal member 12 further includes a seal portion 123. An elastic reset portion 122 is connected between the blocking portion 121 and the seal portion 123. A mounting space is arranged in the second housing 112. A side of the mounting space is open. The first housing 111 is arranged to cover an open area of the mounting space to form the additional storage cavity 11a together with the second housing 112. The seal portion 123 is sandwiched between the first housing 111 and the second housing 112. The insertion hole 11b is arranged in at least one of the first housing 111 and the second housing 112.

[0058] The housing assembly 11 is formed by splicing the first housing 111 and the second housing 112. A joint between the first housing 111 and the second housing 112 is sealed through the seal portion 123, to reduce a probability that the aerosol generating substrate is leaked from the joint.

[0059] The seal portion 123 is sandwiched between the first housing 111 and the second housing 112, so that a position of the seal portion 123 relative to the housing assembly 11 is fixed. In addition, the elastic reset portion 122 is connected to the seal portion 123, and a part of the elastic seal portion 123 is fixed relative to the housing assembly 11. In this way, the elastic reset portion 122 does not need to be fixed to the housing assembly 11 in a manner such as adhesion, which helps simplify an assembly process and improves assembly efficiency.

[0060] It may be understood that the seal portion 123 has an annular structure, to completely seal the joint between the first housing 111 and the second housing 112. The blocking portion 121 and the elastic reset portion 122 are located at an inner side of the seal portion 123.

[0061] The insertion hole 11b may be independently arranged in the first housing 111; may be independently arranged in the second housing 112; or may be formed by splicing edges of the first housing 111 and the second housing 112.

[0062] In some embodiments, the elastic reset portion 122, the blocking portion 121, and the seal portion 123 are of an integrated structure, so as to reduce a quantity of parts and reduce assembly steps in an assembly process, thereby helping improve the assembly efficiency.

[0063] It may be understood that the elastic reset portion 122, the blocking portion 121, and the seal portion 123 may be made of a same material, so that the integrated structure is synchronously formed.

[0064] It may be understood that in a process in which the atomizer 20 pushes the blocking portion 121, the elastic reset portion 122 also generates an elastic force on the seal portion 123.

[0065] In some embodiments, referring to FIG. 3 and FIG. 4, the insertion hole 11b extends through the first housing 111, a side of the mounting space along the first direction is open, the insertion hole 11b extends along the first direction, an inner wall of the mounting space is provided with a stop rib 1121 extending along the first direction, and the stop rib 1121 is located on a side of the seal portion 123 facing away from the first housing 111 and in stop-fit with the seal portion 123 along the first direction.

[0066] In a state in which the elastic reset portion 122 is elastically deformed, a component force of the elastic force exerted by the elastic reset portion 122 on the seal portion 123 along the first direction is opposite to a direction of the stop rib 1121 to the seal portion 123 along the first direction. In this way, a probability that the seal portion 123 is moved due to pulling of the elastic force of the elastic reset portion 122 on the seal portion 123 and seal performance is affected is reduced.

[0067] A quantity of the stop rib 1121 is not limited, which may be one. Referring to FIG. 4, a plurality of stop ribs may alternatively be arranged.

[0068] It may be understood that the blocking portion 121 blocking the insertion hole 11b may be merely covering a communication position between the insertion hole 11b and the additional storage cavity 11a. Alternatively, a part of the blocking portion 121 may be embedded in the insertion hole 11b and be hermetically attached to a part of an inner wall of the insertion hole 11b.

[0069] In some embodiments, an edge of a connecting opening between the insertion hole 11b and the additional storage cavity 11a is provided with a chamfer, so that the blocking portion 121 can be inserted into the insertion hole 11b more smoothly to achieve blocking.

[0070] In some embodiments, an edge of the blocking portion 121 toward a side of the insertion hole 11b is provided with a chamfer, so that the blocking portion 121 can be inserted into the insertion hole 11b more smoothly to achieve blocking.

[0071] The chamfer may be in a form of an inclined chamfer, or may be in a form of a rounded chamfer.

[0072] It may be understood that, after assembly of the housing assembly 11 is completed, the aerosol generating substrate needs to be injected into the additional storage cavity 11a.

[0073] For example, a liquid injection tube of the liquid injection device is inserted into the insertion hole 11b and is abutted against the blocking portion 121, and the blocking portion 121 is pushed to move, to cause the blocking portion 121 to release an effect of releasing the blocking effect the insertion hole 11b, so that the aerosol generating substrate can be injected into the additional storage cavity 11a. After the liquid injection is completed, the liquid injection tube is pulled out, and the blocking portion 121 can be reset under an action of the elastic reset portion 122, to seal the insertion hole 11b.

[0074] In some embodiments, referring to FIG. 3, FIG. 4, and FIG. 6, the additional e-liquid tank 10 further includes a seal plug 13. The seal plug 13 includes a seal block 131. The housing assembly 11 is further provided with a liquid injection hole 11c. The liquid injection hole 11c is in communication with the additional storage cavity 11a and the exterior of the additional e-liquid tank 10. The seal block 131 can block the liquid injection hole 11c from the exterior of the housing assembly 11.

[0075] In this way, in a process of injecting the aerosol generating substrate into the additional storage cavity 11a, the liquid injection tube of the liquid injection device can be first inserted into the liquid injection hole 11c, and the aerosol generating substrate is directly injected into the additional storage cavity 11a, thereby avoiding blocking of a liquid flow by the blocking portion 121 and improving the liquid injection efficiency. In addition, in a liquid injection process, the insertion hole 11b does not need to be opened, and the blocking portion 121 may be mounted into the insertion hole 11b through an external force greater than a force of the elastic reset portion 122 before the liquid injection, to achieve a better sealing effect and avoid liquid leakage of the additional e-liquid tank 10 in a transportation process (namely, before the additional e-liquid tank is mounted to the atomizer 20).

[0076] It may be understood that at least part of the seal block 131 is embedded in the liquid injection hole 11c and hermetically attached to at least part of the inner wall of the liquid injection hole 11c, to reduce a probability that the aerosol generating substrate leaks from the liquid injection hole 11c.

[0077] The seal block 131 uses a food-grade material, for example, food-grade silicon, to reduce a probability that the seal block 131 may cause pollution to the aerosol generating substrate in the additional storage cavity 11a. In addition, a sealing effect of the liquid injection hole 11c can also be improved through elastic deformation of the seal block 131.

[0078] It may be understood that, after being inserted into the insertion hole 11b, the atomizer 20 has a gap to cooperate with the inner wall of the insertion hole 11b, to cause the atomizer 20 to be smoothly inserted and subsequently extracted. However, a risk that the gap between the atomizer and the inner wall of the insertion hole 11b causes leakage of the aerosol generating substrate exists.

[0079] In some embodiments, referring to FIG. 3 and FIG. 6, the seal plug 13 includes a seal ring 132, and the seal ring 132 is provided with an avoidance hole 132a extending through the seal ring. At least part of the seal ring 132 is located in the insertion hole 11b and hermetically attached to the inner wall of the insertion hole 11b, and the avoidance hole 132a is configured for insertion of the atomizer 20 to enter the insertion hole 11b.

[0080] It may be understood that at least part of the inner wall of the avoidance hole 132a is configured to be hermetically attached to the atomizer 20, to reduce a risk that the aerosol generating substrate leaks between the atomizer 20 and the inner wall of the insertion hole 11b.

[0081] In some embodiments, referring to FIG. 6, the inner wall of the avoidance hole 132a is provided with a seal protrusion. The seal protrusion is configured to be hermetically attached to the atomizer 20, to improve the sealing effect.

[0082] The seal block 131 uses a food-grade material, for example, food-grade silicon, to reduce a probability that the seal block 131 may cause pollution to the aerosol generating substrate in the additional storage cavity 11a. In addition, a sealing effect of the avoidance hole 132a can also be improved through elastic deformation of the seal block 131.

[0083] In some embodiments, referring to FIG. 6, the seal ring 132 is in an annular structure, to improve the sealing effect.

[0084] In some embodiments, referring to FIG. 6, the seal plug 13 includes a seal base 133. The seal block 131 and the seal ring 132 are both arranged on the seal base 133, and the seal plug 13 is of an integral structure, thereby helping reduce a quantity of parts of the additional e-liquid tank 10.

[0085] In some embodiments provided with the first housing 111 and the second housing 112, referring to FIG. 3, the liquid injection hole 11c and the insertion hole 11b are located on the same one of the first housing 111 and the second housing 112, and the liquid injection hole 11c and the insertion hole 11b both extend along the first direction. In this way, a distance between the seal ring 132 and the seal block 131 is facilitated to reduce, thereby helping reducing a dimension of the seal plug 13.

[0086] The embodiments of the utility model further provide an aerosol generating device. Referring to FIG. 7 to FIG. 10, the aerosol generating device includes an atomizer 20 and the additional e-liquid tank 10 of any one of the foregoing embodiments. The atomizer 20 includes a mounting assembly 21 and an atomization core 22, the mounting assembly 21 is provided with an accommodating cavity 21a therein, the accommodating cavity 21a is provided with the atomization core 22 therein, the mounting assembly 21 is provided with an insertion column 211, the insertion column 211 is provided with an exchange channel 211a, the exchange channel 211a is in communication with the accommodating cavity 21a and an exterior of the atomizer 20, the insertion column 211 is provided with an exchange hole 211b, the exchange hole 211b extends through the insertion column 211, and the exchange hole 211b is in communication with the exchange channel 211a and the additional storage cavity 11a in a state in which the insertion column 211 pushes the blocking portion 121 to be separated from the insertion hole 11b.

[0087] The atomization core 22 is configured to convert the aerosol generating substrate into the aerosol by heating or the like. After being discharged from the atomizer 20, the aerosol is used for being inhaled by the user.

[0088] The insertion column 211 is inserted into the insertion hole 11b and is abutted against the blocking portion 121, to push the blocking portion 121 to be separated from the housing assembly 11. At least part of the exchange hole 211b enters the additional storage cavity 11a. The aerosol generating substrate in the additional storage cavity 11a enters the exchange channel 211a through the exchange hole 211b, and further enters the accommodating cavity 21a and is absorbed by the atomization core 22, to prolong a service life of the atomization core 22. In addition, the air in the accommodating cavity 21a can enter the additional storage cavity 11a through the exchange channel 211a and the exchange hole 211b, to reduce a probability that a negative pressure occurs in the additional storage cavity 11a and suppress the aerosol generating substrate from entering the exchange channel 211a through the exchange hole 211b, so that the aerosol generating substrate is replenished in time.

[0089] In some embodiments, an end of the exchange channel 211a close to the blocking portion 121 is a closed end, and an end of the insertion column 211 inserted into one end of the additional storage cavity 11a can abut against the blocking portion 121. Therefore, a contact area between the insertion column 211 and the blocking portion 121 is increased, which helps stabilize a relative position of the insertion column and the blocking portion, thereby reducing a risk that the blocking portion 121 covers the exchange hole 211b due to shaking or vibration during use of the aerosol generating device.

[0090] In some other embodiments, referring to FIG. 10 and FIG. 11, an end of the exchange channel 211a close to the blocking portion 121 is an open end, so that a part of the blocking portion 121 can be embedded into the exchange channel 211a, thereby limiting a position of the blocking portion 121 through the inner wall of the exchange channel 211a and reducing a risk that the blocking portion 121 covers the exchange hole 211b due to shaking or vibration during use of the aerosol generating device.

[0091] In some embodiments, the atomizer 20 and the additional e-liquid tank 10 are detachably connected to each other.

[0092] A specific manner of implementing the detachable connection is not limited. For example, one of the atomizer 20 and the additional e-liquid tank 10 is provided with an elastic snap, and the other is provided with a mounting groove. The elastic snap can be inserted into the mounting groove or separated from the mounting groove through elastic deformation.

[0093] It may be understood that, referring to FIG. 10, the insertion column 211 is inserted into the avoidance hole 132a.

[0094] In some embodiments, referring to FIG. 9 and FIG. 10, the insertion column 211 and the insertion hole 11b both extend along the first direction, and the exchange hole 211b is located on a side of the insertion column 211 perpendicular to the first direction.

[0095] The insertion column 211 abuts against with the blocking portion 121 along the first direction. Therefore, a probability that the blocking portion 121 blocks the exchange hole 211b is reduced, and smooth circulation of the aerosol generating substrate and the air flow between the exchange channel 211a and the additional storage cavity 11a is facilitated.

[0096] In some embodiments, referring to FIG. 10 and FIG. 11, a side of the exchange hole 211b close to the blocking portion 121 along the first direction is open, so that after the insertion column 211 enters the additional storage cavity 11a, the aerosol generating substrate can immediately enter the exchange channel 211a, which helps increase a speed of replenishing the aerosol generating substrate, shortens a dimension of the insertion column 211 along the first direction, and causes the structure of the atomizer 20 to be more compact.

[0097] One or more exchange holes 211b may be arranged.

[0098] In some embodiments in which a plurality of exchange holes 211b are arranged, referring to FIG. 10 and FIG. 11, at least part of the exchange holes 211b are located above the exchange channel 211a along an axial direction of the aerosol generating device.

[0099] The axial direction of the aerosol generating device refers to a flow direction of discharging an aerosol from the aerosol generating device. In a process of using the aerosol generating device by the user, the axial direction of the aerosol generating device is generally along a vertical direction.

[0100] The direction above the exchange channel 211a refers to a direction of the exchange channel 211a away from the direction of gravity in a process of using the aerosol generating device by the user.

[0101] When the user uses the aerosol generating device, because the density of the air in the exchange channel 211a is lower than that of the aerosol generating substrate, bubbles formed by the air may more easily gather above the exchange channel 211a.

[0102] In this way, the bubbles are facilitated to enter the additional storage cavity 11a from the exchange hole 211b, thereby further reducing a probability that a negative pressure occurs in the additional storage cavity 11a.

[0103] In some embodiments, referring to FIG. 8 and FIG. 9, the mounting assembly 21 is provided with an air outlet channel 21b therein, the air outlet channel 21b is in communication with an atomization cavity 22 in the atomization core and the exterior of the atomizer 20, and an axial direction of the insertion column 211 is perpendicular to an air outlet direction of the air outlet channel.

[0104] The axial direction of the insertion column 211 refers to a direction in which the insertion column 211 is inserted into the additional storage cavity 11a.

[0105] In this way, in a state in which the user inhales the aerosol, a height difference in the direction of gravity between a liquid surface of the aerosol generating substrate in the additional storage cavity 11a and the atomization core 22 is facilitated to reduce, thereby reducing a risk of leakage of the aerosol generating substrate because a pressure generated due to the height difference acts on the atomization core 22, and helping improve a leak-proof effect on the aerosol generating substrate.

[0106] In a state in which the user inhales the aerosol, the aerosol generated by the atomization core 22 enters the atomization cavity, and is discharged from the outlet of the air outlet channel 21b into the mouth of the user. In this state, the third direction is substantially along a vertical direction. In other words, the third direction is parallel to the direction of gravity, or an included angle between the third direction and the direction of gravity is an acute angle.

[0107] In some embodiments, the extension direction of the elastic reset portion 122, the first direction, and the axial direction of the aerosol generating device are perpendicular to each other. In this way, in a case that two elastic reset portions 122 are arranged and the two elastic reset portions 122 are uniformly arranged, the insertion hole 11b may be arranged below the additional e-liquid tank 10 as much as possible, so that the aerosol generating substrate in the additional storage cavity 11a can flow out of the additional storage cavity 11a as much as possible under the effect of gravity.

[0108] In some embodiments, referring to FIG. 9, the atomization core 22 and the inner wall of the accommodating cavity 21a jointly define a main storage cavity 21c, the main storage cavity 21c is in communication with the exchange channel 211a, the atomizer 20 further includes a liquid storage member 23, the liquid storage member 23 is located in the main storage cavity 21c, and the liquid storage member 23 is provided with a pore to absorb the aerosol generating substrate through a capillary action. In addition, because the liquid storage member 23 is arranged, the aerosol generating substrate in the main storage cavity 21c does not always flow to the atomization core 22 due to the gravity when the additional e-liquid tank 10 is removed, thereby causing liquid leakage.

[0109] The liquid storage member 23 has a plurality of pores. After the liquid storage member 23 contacts the aerosol generating substrate, the aerosol generating substrate can be absorbed by the liquid storage member 23 and stored in a space in the pores through the capillary action. At least some of the pores are in communication with each other, so that the aerosol generating substrate can be transferred through the liquid storage member 23 to the atomization core 22 in fluid communication with the liquid storage member 23.

[0110] In this way, after the aerosol generating substrate on the atomization core 22 is consumed to a certain extent, the aerosol generating substrate can be replenished to the atomization core 22 through the liquid storage member 23, so that the concentration of the aerosol generating substrate in the atomization core 22 is maintained within a certain range. In addition, due to existence of the pores, the airflow can also pass through the liquid storage member 23 through the pores that are in communication with each other. In other words, a channel formed by communication between the pores in the liquid storage member 23 not only allows the airflow to pass through, but also allows the aerosol generating substrate to flow through.

[0111] The aerosol generating substrate in the additional storage cavity 11a enters the main storage cavity 21c, and is absorbed by the liquid storage member 23, and is then fed to the atomization core 22 through the liquid storage member 23.

[0112] The embodiments / implementations of the utility model may be combined with each other without contradictions.

[0113] The foregoing are merely preferred technical solutions in the embodiments of the utility model and are not intended to limit the protection scope of the embodiments of the utility model. For a person skilled in the art, the embodiments of the utility model may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the embodiments of the utility model shall fall within the protection scope of the embodiments of the utility model.

Examples

Embodiment Construction

[0026]It should be noted that technical features in embodiments of the utility model may be mutually combined in case of no conflict. The detailed descriptions in specific implementations should be understood as explanatory descriptions of ideas of the embodiments of the utility model, and should not be considered as improper limitations to the embodiments of the utility model.

[0027]In descriptions of the embodiments of the utility model, an orientation or position relationship of a "first direction" is based on an orientation or position relationship shown by an arrow X in FIG. 3 and FIG. 9. An orientation or position relationship of a "second direction" is based on an orientation or position relationship shown by an arrow Y in FIG. 5. Orientations or position relationships indicated by an "air outlet direction of an air outlet channel" and an "axial direction of an aerosol generating device" are based on an orientation or position relationship shown by an arrow Z in FIG. 7, FIG. 9...

TECHNICAL FIELD

[0001] Embodiments of the utility model relates to the field of atomization technologies, and in particular, to an additional e-liquid tank and an aerosol generating device.BACKGROUND

[0002] An aerosol generating device is configured to generate an aerosol for a user to inhale.

[0003] The aerosol generating device includes an atomizer and an additional e-liquid tank. An atomization core can absorb an aerosol generating substrate and convert the aerosol generating substrate into the aerosol. After the aerosol generating substrate in the atomizer is consumed to a certain extent, the aerosol generating substrate stored in the additional e-liquid tank enters the atomizer through an outlet thereof for supplementing. Therefore, a service life of the aerosol generating device is prolonged.

[0004] In the related art, a detachable configuration is provided between the additional e-liquid tank and the atomizer, so that an old additional e-liquid tank is removed and a new additional e-liquid tank is replaced after the aerosol generating substrate in the additional e-liquid tank is used up.

[0005] After the additional e-liquid tank is removed and separated from the atomizer, a small amount of aerosol generating substrate still remains. If the residual aerosol generating substrate leaks, the residual aerosol generating substrate may adhere to a position such as clothes, belongings, or hands of a user, which is not beneficial to user experience, and may also cause pollution to an ambient environment.SUMMARY

[0006] In view of the above, embodiments of the utility model are intended to an additional e-liquid tank and an aerosol generating device, which can reduce a risk of leakage of a residual aerosol generating substrate after removal.

[0007] To achieve the foregoing objective, technical solutions in the embodiments of the utility model are implemented as follows.

[0008] The embodiments of the utility model provide an additional e-liquid tank, which is configured to provide an aerosol generating substrate to an atomizer. The additional e-liquid tank includes: a housing assembly, provided with an additional storage cavity and an insertion hole, where the insertion hole is in communication with the additional storage cavity and an exterior of the additional e-liquid tank, and the additional storage cavity is configured to store the aerosol generating substrate; and a seal member, including a blocking portion and an elastic reset portion, where the blocking portion is arranged in the additional storage cavity and blocks the insertion hole, a part of the elastic reset portion is fixed relative to the housing assembly, the insertion hole is configured for insertion of the atomizer to push the blocking portion to be separated from the insertion hole, and in a state in which the blocking portion is separated from the insertion hole, the elastic reset portion is elastically deformed to cause the blocking portion to generate a movement tendency to move toward the insertion hole to block the insertion hole.

[0009] In some embodiments, a plurality of elastic reset portions are arranged, the insertion hole extends along a first direction, the elastic reset portions extend perpendicular to the first direction, and the elastic reset portions are uniformly arranged around the blocking portion with an axis extending along the first direction.

[0010] In some embodiments, two elastic reset portions are arranged, a ratio of a dimension of the elastic reset portion along a second direction to a dimension of the elastic reset portion along the first direction is not less than 3.

[0011] In some embodiments, the first direction, the second direction, and an extension direction of the elastic reset portion are perpendicular to each other.

[0012] In some embodiments, the housing assembly includes a first housing and a second housing, the seal member further includes a seal portion, the elastic reset portion is connected between the blocking portion and the seal portion, a mounting space is arranged in the second housing, a side of the mounting space is open, the first housing is arranged to cover an open area of the mounting space to form the additional storage cavity together with the second housing, the seal portion is sandwiched between the first housing and the second housing, and the insertion hole is provided on at least one of the first housing and the second housing.

[0013] In some embodiments, the insertion hole extends through the first housing, a side of the mounting space along the first direction is open, the insertion hole extends along the first direction, an inner wall of the mounting space is provided with a stop rib extending along the first direction, and the stop rib is located on a side of the seal portion that faces away from the first housing and is in stop-fit with the seal portion along the first direction.

[0014] In some embodiments, the additional e-liquid tank further includes a seal plug, the seal plug includes a seal block, the housing assembly is further provided with a liquid injection hole, the liquid injection hole is in communication with the additional storage cavity and the exterior of the additional e-liquid tank, and the seal block is configured to block the liquid injection hole from the exterior of the housing assembly.

[0015] In some embodiments, the seal plug includes a seal ring, the seal ring is provided with an avoidance hole extending through the seal ring, at least part of the seal ring is located in the insertion hole and hermetically attached to an inner wall of the insertion hole, and the avoidance hole is configured for insertion of the atomizer to enter the insertion hole.

[0016] In some embodiments, an edge of a connecting opening between the insertion hole and the additional storage cavity is provided with a chamfer.

[0017] In some embodiments, an edge of the blocking portion facing a side of the insertion hole is provided with a chamfer.

[0018] The embodiments of the utility model further provide an aerosol generating device, the aerosol generating device includes an atomizer and the additional e-liquid tank of any one of the foregoing embodiments, the atomizer includes a mounting assembly and an atomization core, the mounting assembly is provided with an accommodating cavity therein, the accommodating cavity is provided with the atomization core therein, the mounting assembly is provided with an insertion column, the insertion column is provided with an exchange channel, the exchange channel is in communication with the accommodating cavity and an exterior of the atomizer, the insertion column is provided with an exchange hole, the exchange hole extends through the insertion column, and the exchange hole is in communication with the exchange channel and the additional storage cavity in a state in which the insertion column pushes the seal member to be separated from the insertion hole.

[0019] In some embodiments, the aerosol generating device includes a plurality of exchange holes, where at least some of the exchange holes are located above the exchange channel along an axial direction of the aerosol generating device.

[0020] In some embodiments, the mounting assembly is provided with an air outlet channel therein, the air outlet channel is in communication with an atomization cavity in the atomization core and the exterior of the atomizer, and an axial direction of the insertion column is perpendicular to an air outlet direction of the air outlet channel.

[0021] In some embodiments, the insertion column and the insertion hole both extend along a first direction, the exchange hole is located on a side of the insertion column perpendicular to the first direction, and the exchange hole is open along the first direction and on a side close to the blocking portion.

[0022] In some embodiments, the atomization core and an inner wall of the accommodating cavity jointly define a main storage cavity, the main storage cavity is in communication with the exchange channel, the atomizer further includes a liquid storage member, the liquid storage member is located in the main storage cavity, the liquid storage member is provided with a pore to absorb an aerosol generating substrate through a capillary action, and the liquid storage member is in fluid communication with the atomization core.

[0023] In one aspect, the additional e-liquid tank in the embodiments of the utility model can, through an elastic force exerted by the elastic reset portion on the blocking portion, help keep the position of the blocking portion in the additional storage cavity and reduce an abnormal sound generated by sway of the blocking portion in the additional storage cavity in a state in which the atomizer is inserted into the insertion hole. In another aspect, the blocking portion is facilitated to block the insertion hole again after the atomizer is pulled out from the insertion hole, thereby reducing a probability of leakage of the aerosol generating substrate in the additional storage cavity after the additional e-liquid tank is removed from the aerosol generating device.BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic diagram of an additional e-liquid tank according to an embodiment of the utility model. FIG. 2 is a schematic diagram of an embodiment in FIG. 1 from another perspective. FIG. 3 is a schematic cutaway axonometric view of an embodiment in FIG. 2, where a cutaway position is at a position A-A. FIG. 4 is a schematic cutaway diagram of an embodiment in FIG. 2, where a cutaway position is at a position B-B. FIG. 5 is a schematic diagram of a seal member according to an embodiment of the utility model. FIG. 6 is a schematic diagram of a seal plug according to an embodiment of the utility model. FIG. 7 is a schematic diagram of an aerosol generating device according to an embodiment of the utility model. FIG. 8 is a schematic diagram of an embodiment in FIG. 7 from another perspective. FIG. 9 is a schematic cutaway view of an embodiment in FIG. 8 at a position C-C. FIG. 10 is a partial schematic enlarged view of a position D in FIG. 9. FIG. 11 is a schematic diagram of an atomizer according to an embodiment of the utility model. DESCRIPTION OF REFERENCE NUMERALS

[0025] 10. Additional e-liquid tank; 11. Housing assembly; 11a. Additional storage cavity; 11b. Insertion hole; 11c. Liquid injection hole; 111. First housing; 112. Second housing; 1121. Stop rib; 12. Seal member; 121. Blocking portion; 122. Elastic reset portion; 123. Seal portion; 13. Seal plug; 131. Seal block; 132. Seal ring; 132a. Avoidance hole; 133. Seal base; 20. Atomizer; 21. Mounting assembly; 21a. Accommodating cavity; 21b. Air outlet channel; 21c. Main storage cavity; 211. Insertion column; 211a. Exchange channel; 211b. Exchange hole; 22. Atomization core; 23. Liquid storage member. DETAILED DESCRIPTION

[0026] It should be noted that technical features in embodiments of the utility model may be mutually combined in case of no conflict. The detailed descriptions in specific implementations should be understood as explanatory descriptions of ideas of the embodiments of the utility model, and should not be considered as improper limitations to the embodiments of the utility model.

[0027] In descriptions of the embodiments of the utility model, an orientation or position relationship of a "first direction" is based on an orientation or position relationship shown by an arrow X in FIG. 3 and FIG. 9. An orientation or position relationship of a "second direction" is based on an orientation or position relationship shown by an arrow Y in FIG. 5. Orientations or position relationships indicated by an "air outlet direction of an air outlet channel" and an "axial direction of an aerosol generating device" are based on an orientation or position relationship shown by an arrow Z in FIG. 7, FIG. 9, and FIG. 11, where "above" refers to a direction of z1 and "below" refers to a direction of z2. It should be understood that these orientation terms are merely used for facilitating description of the embodiments of the utility model and simplifying the description, rather than indicating or implying that the mentioned devices or elements need to have a particular orientation or need to be constructed and operated in a particular orientation. Therefore, the terms should not be understood as a limitation on the embodiments of the utility model.

[0028] The embodiments of the utility model provide an additional e-liquid tank. The additional e-liquid tank stores an aerosol generating substrate. The additional e-liquid tank is arranged in an aerosol generating device, and is configured to provide the aerosol generating substrate to an atomizer, so that after the aerosol generating substrate stored in the atomizer is used up, the additional e-liquid tank can continue to replenish the aerosol generating substrate to the atomizer to prolong a service life. The additional e-liquid tank is in a detachable connection with another component of the aerosol generating device, so as to be replaced after the aerosol generating substrate stored in the additional e-liquid tank is used up.

[0029] Referring to FIG. 1 to FIG. 3, the additional e-liquid tank 10 includes a housing assembly 11 and a seal member 12.

[0030] The housing assembly 11 is provided with an additional storage cavity 11a and an insertion hole 11b. The insertion hole 11b is in communication with the additional storage cavity 11a and an exterior of the additional e-liquid tank 10, and the additional storage cavity 11a is configured to store the aerosol generating substrate.

[0031] The seal member 12 includes a blocking portion 121 and an elastic reset portion 122. The blocking portion 121 is arranged in the additional storage cavity 11a and blocks the insertion hole 11b. A part of the elastic reset portion 122 is fixed relative to the housing assembly 11. The insertion hole 11b is configured for insertion of the atomizer 20 to push the blocking portion 121 to separate from the insertion hole 11b. In a state in which the blocking portion 121 is separated from the insertion hole 11b, the elastic reset portion 122 is elastically deformed to cause the blocking portion 121 to generate a movement tendency to move toward the insertion hole 11b to block the insertion hole 11b.

[0032] The aerosol generating substrate is a fluid.

[0033] The blocking portion 121 is configured to cover an opening at a position in which the insertion hole 11b communicates with the additional storage cavity 11a.

[0034] In a state in which the blocking portion 121 blocks the insertion hole 11b, the insertion hole 11b is not in communication with the additional storage cavity 11a, and the aerosol generating substrate in the additional storage cavity 11a cannot flow out of the additional e-liquid tank 10 through the insertion hole 11b.

[0035] At least part of the atomizer 20 is inserted into the insertion hole 11b until the atomizer abuts against the blocking portion 121, and the blocking portion 121 is pushed to move, so that the blocking portion 121 is separated from the insertion hole 11b, to cause the atomizer 20 to be in communication with the additional storage cavity 11a and cause the aerosol generating substrate in the additional storage cavity 11a to enter the atomizer 20.

[0036] The elastic reset portion 122 can be elastically deformed under an external force, so as to expand and contract with movement of the blocking portion 121.

[0037] It may be understood that the atomizer 20 pushes the blocking portion 121 to move relative to the housing assembly 11 until the blocking portion 121 is separated from the housing assembly 11, to achieve an effect of releasing the blocking effect on the insertion hole 11b by the blocking portion 121. In a process of moving the blocking portion 121, the elastic reset portion 122 causes a part connected to the blocking portion 121 to move relative to a part that is fixed relative to the housing assembly 11 through elastic deformation, so that the elastic reset portion 122 exerts an elastic force on the blocking portion 121.

[0038] In a state in which the atomizer 20 is abutted against the blocking portion 121, although the blocking portion 121 is caused to have a movement tendency to move toward the insertion hole 11b due to an elastic force exerted by the elastic reset portion 122, an abutted force exerted by the atomizer 20 on the blocking portion 121 is balanced with an elastic force exerted by the elastic reset portion 122 on the blocking portion 121, so that the position of the blocking portion 121 is relatively fixed, and the aerosol generating substrate in the additional storage cavity 11a can stably flow into the atomizer 20. In a state in which the additional e-liquid tank 10 is separated from the atomizer 20 for replacement, the atomizer 20 is separated from the insertion hole 11b, so that the blocking portion 121 is no longer be subjected to the abutted force exerted by the atomizer 20 on the blocking portion. Under an action of the elastic force exerted by the elastic reset portion 122 on the blocking portion 121, the seal member 12 moves toward the insertion hole 11b until the blocking portion 121 is abutted against the housing assembly 11 and blocks the insertion hole 11b again.

[0039] It may be understood that after the atomizer 20 is separated from the insertion hole 11b, in a state in which the blocking portion 121 blocks the insertion hole 11b, the elastic reset portion 122 is in the elastically deformed state, so that the blocking portion 121 maintains the state of blocking the insertion hole 11b.

[0040] In one aspect, the additional e-liquid tank 10 in the embodiments of the utility model can, through an elastic force exerted by the elastic reset portion 122 on the blocking portion 121, help keep the position of the blocking portion 121 in the additional storage cavity 11a and reduce an abnormal sound generated by sway of the blocking portion 121 in the additional storage cavity 11a in a state in which the atomizer 20 is inserted into the insertion hole 11b. In another aspect, the blocking portion 121 is facilitated to block the insertion hole 11b again after the atomizer 20 is pulled out from the insertion hole 11b, thereby reducing a probability of leakage of the aerosol generating substrate in the additional storage cavity 11a after the additional e-liquid tank 10 is removed from the aerosol generating device.

[0041] In some embodiments, the blocking portion 121 is made of food-grade silica gel. In one aspect, a probability that the blocking portion 121 may pollute the aerosol generating substrate in the additional storage cavity 11a is reduced. In another aspect, due to the elastic force generated by the elastic reset portion 122 on the blocking portion 121, the blocking portion 121 can be elastically deformed, thereby helping the blocking portion 121 keep adhering to the housing assembly 11 and improving a sealing effect of the blocking portion 121.

[0042] In some embodiments, referring to FIG. 3, the elastic reset portion 122 is located in the additional storage cavity 11a. In this way, a probability that the elastic reset portion 122 is exposed to the exterior of the housing assembly 11 and damage is caused is avoided.

[0043] In some embodiments in which the elastic reset portion 122 is located in the additional storage cavity 11a, the elastic reset portion 122 is made of a food-grade material, for example, the food-grade silica gel, to reduce a probability that the blocking portion 121 may pollute the aerosol generating substrate in the additional storage cavity 11a.

[0044] In some embodiments, referring to FIG. 4 and FIG. 5, a plurality of elastic reset portions 122 are arranged, so that the elastic force can still be generated on the blocking portion 121 when the elastic force of some of the elastic reset portions 122 fails.

[0045] A plurality of elastic reset portions 122 means that a quantity of the elastic reset portions 122 is not less than 2.

[0046] In some embodiments in which a plurality of elastic reset portions 122 are arranged, referring to FIG. 3 to FIG. 5, the insertion hole 11b extends along a first direction, the elastic reset portions 122 extend perpendicular to the first direction, and the elastic reset portions 122 are uniformly arranged around the blocking portion 121 with an axis extending along the first direction.

[0047] Under a guiding effect of the insertion hole 11b, the atomizer 20 pushes the blocking portion 121 to move along the first direction, causing the elastic reset portion 122 to stretch, so that the elastic reset portion 122 generates the elastic force on the blocking portion 121.

[0048] After the elastic reset portion 122 is stretched, the elastic force generated by the elastic reset portion 122 on the blocking portion 121 may be decomposed into a first component force along the first direction and a second component force perpendicular to the first direction. Under the action of the first component force, the blocking portion 121 is caused to move along the first direction. The elastic reset portions 122 are uniformly arranged, to cause the second component force generated by the elastic reset portions 122 to balance each other, which helps the position of the blocking portion 121 in the direction perpendicular to the first direction to be stable, thereby helping the blocking portion 121 accurately block the insertion hole 11b after the atomizer 20 is pulled out of the insertion hole 11b.

[0049] That the elastic reset portions 122 are uniformly arranged means that in the projection perpendicular to the first direction, included angles between geometric centers of projection profiles of any two adjacent elastic reset portions 122 are the same. For example, if two elastic reset portions 122 are arranged, the included angle between geometric centers of projection profiles of the two elastic reset portions 122 is 180°. For example, if three elastic reset portions 122 are arranged, the included angle between geometric centers of projection profiles of the two elastic reset portions 122 is 120°. If four elastic reset portions 122 are arranged, the included angle between geometric centers of projection profiles of the two elastic reset portions 122 is 90°.

[0050] In some embodiments, referring to FIG. 5, two elastic reset portions 122 are arranged, to simplify a structure of the seal member 12 and reduce production costs.

[0051] In an embodiment in which two elastic reset portions 122 are arranged, a ratio of a dimension of the elastic reset portion 122 along a second direction to a dimension of the elastic reset portion 122 along the first direction is not less than 3.

[0052] In an embodiment, the first direction, the second direction, and an extension direction of the elastic reset portion 122 are perpendicular to each other. In other words, referring to FIG. 3 and FIG. 5, the dimension of the elastic reset portion 122 along the second direction is L1, the dimension of the elastic reset portion 122 along the first direction is L2, and L1 / L2≥3.

[0053] In this way, a probability that the blocking portion 121 reverses along the axis perpendicular to the first direction is facilitated to suppress through the elastic reset portion 122, so that the blocking portion 121 blocks the insertion hole 11b more smoothly.

[0054] In some embodiments, referring to FIG. 3 and FIG. 5, a connection position between the elastic reset portion 122 and the blocking portion 121 is located on a side of the blocking portion 121 facing away from the insertion hole 11b along the first direction.

[0055] In this way, a probability that the elastic reset portion 122 interferes the contact between the blocking portion 121 and the housing assembly 11 is reduced, which helps enlarge a contact area between the elastic reset portion 122 and the blocking portion 121 to improve connection strength and reduce a dimension of the blocking portion 121 along the first direction.

[0056] In some embodiments in which a plurality of elastic reset portions 122 are arranged, referring to FIG. 4 and FIG. 5, the elastic reset portions 122 are connected to each other, to improve connection strength between the elastic reset portion 122 and the blocking portion 121.

[0057] In some embodiments, referring to FIG. 3 to FIG. 5, the housing assembly 11 includes a first housing 111 and a second housing 112. The seal member 12 further includes a seal portion 123. An elastic reset portion 122 is connected between the blocking portion 121 and the seal portion 123. A mounting space is arranged in the second housing 112. A side of the mounting space is open. The first housing 111 is arranged to cover an open area of the mounting space to form the additional storage cavity 11a together with the second housing 112. The seal portion 123 is sandwiched between the first housing 111 and the second housing 112. The insertion hole 11b is arranged in at least one of the first housing 111 and the second housing 112.

[0058] The housing assembly 11 is formed by splicing the first housing 111 and the second housing 112. A joint between the first housing 111 and the second housing 112 is sealed through the seal portion 123, to reduce a probability that the aerosol generating substrate is leaked from the joint.

[0059] The seal portion 123 is sandwiched between the first housing 111 and the second housing 112, so that a position of the seal portion 123 relative to the housing assembly 11 is fixed. In addition, the elastic reset portion 122 is connected to the seal portion 123, and a part of the elastic seal portion 123 is fixed relative to the housing assembly 11. In this way, the elastic reset portion 122 does not need to be fixed to the housing assembly 11 in a manner such as adhesion, which helps simplify an assembly process and improves assembly efficiency.

[0060] It may be understood that the seal portion 123 has an annular structure, to completely seal the joint between the first housing 111 and the second housing 112. The blocking portion 121 and the elastic reset portion 122 are located at an inner side of the seal portion 123.

[0061] The insertion hole 11b may be independently arranged in the first housing 111; may be independently arranged in the second housing 112; or may be formed by splicing edges of the first housing 111 and the second housing 112.

[0062] In some embodiments, the elastic reset portion 122, the blocking portion 121, and the seal portion 123 are of an integrated structure, so as to reduce a quantity of parts and reduce assembly steps in an assembly process, thereby helping improve the assembly efficiency.

[0063] It may be understood that the elastic reset portion 122, the blocking portion 121, and the seal portion 123 may be made of a same material, so that the integrated structure is synchronously formed.

[0064] It may be understood that in a process in which the atomizer 20 pushes the blocking portion 121, the elastic reset portion 122 also generates an elastic force on the seal portion 123.

[0065] In some embodiments, referring to FIG. 3 and FIG. 4, the insertion hole 11b extends through the first housing 111, a side of the mounting space along the first direction is open, the insertion hole 11b extends along the first direction, an inner wall of the mounting space is provided with a stop rib 1121 extending along the first direction, and the stop rib 1121 is located on a side of the seal portion 123 facing away from the first housing 111 and in stop-fit with the seal portion 123 along the first direction.

[0066] In a state in which the elastic reset portion 122 is elastically deformed, a component force of the elastic force exerted by the elastic reset portion 122 on the seal portion 123 along the first direction is opposite to a direction of the stop rib 1121 to the seal portion 123 along the first direction. In this way, a probability that the seal portion 123 is moved due to pulling of the elastic force of the elastic reset portion 122 on the seal portion 123 and seal performance is affected is reduced.

[0067] A quantity of the stop rib 1121 is not limited, which may be one. Referring to FIG. 4, a plurality of stop ribs may alternatively be arranged.

[0068] It may be understood that the blocking portion 121 blocking the insertion hole 11b may be merely covering a communication position between the insertion hole 11b and the additional storage cavity 11a. Alternatively, a part of the blocking portion 121 may be embedded in the insertion hole 11b and be hermetically attached to a part of an inner wall of the insertion hole 11b.

[0069] In some embodiments, an edge of a connecting opening between the insertion hole 11b and the additional storage cavity 11a is provided with a chamfer, so that the blocking portion 121 can be inserted into the insertion hole 11b more smoothly to achieve blocking.

[0070] In some embodiments, an edge of the blocking portion 121 toward a side of the insertion hole 11b is provided with a chamfer, so that the blocking portion 121 can be inserted into the insertion hole 11b more smoothly to achieve blocking.

[0071] The chamfer may be in a form of an inclined chamfer, or may be in a form of a rounded chamfer.

[0072] It may be understood that, after assembly of the housing assembly 11 is completed, the aerosol generating substrate needs to be injected into the additional storage cavity 11a.

[0073] For example, a liquid injection tube of the liquid injection device is inserted into the insertion hole 11b and is abutted against the blocking portion 121, and the blocking portion 121 is pushed to move, to cause the blocking portion 121 to release an effect of releasing the blocking effect the insertion hole 11b, so that the aerosol generating substrate can be injected into the additional storage cavity 11a. After the liquid injection is completed, the liquid injection tube is pulled out, and the blocking portion 121 can be reset under an action of the elastic reset portion 122, to seal the insertion hole 11b.

[0074] In some embodiments, referring to FIG. 3, FIG. 4, and FIG. 6, the additional e-liquid tank 10 further includes a seal plug 13. The seal plug 13 includes a seal block 131. The housing assembly 11 is further provided with a liquid injection hole 11c. The liquid injection hole 11c is in communication with the additional storage cavity 11a and the exterior of the additional e-liquid tank 10. The seal block 131 can block the liquid injection hole 11c from the exterior of the housing assembly 11.

[0075] In this way, in a process of injecting the aerosol generating substrate into the additional storage cavity 11a, the liquid injection tube of the liquid injection device can be first inserted into the liquid injection hole 11c, and the aerosol generating substrate is directly injected into the additional storage cavity 11a, thereby avoiding blocking of a liquid flow by the blocking portion 121 and improving the liquid injection efficiency. In addition, in a liquid injection process, the insertion hole 11b does not need to be opened, and the blocking portion 121 may be mounted into the insertion hole 11b through an external force greater than a force of the elastic reset portion 122 before the liquid injection, to achieve a better sealing effect and avoid liquid leakage of the additional e-liquid tank 10 in a transportation process (namely, before the additional e-liquid tank is mounted to the atomizer 20).

[0076] It may be understood that at least part of the seal block 131 is embedded in the liquid injection hole 11c and hermetically attached to at least part of the inner wall of the liquid injection hole 11c, to reduce a probability that the aerosol generating substrate leaks from the liquid injection hole 11c.

[0077] The seal block 131 uses a food-grade material, for example, food-grade silicon, to reduce a probability that the seal block 131 may cause pollution to the aerosol generating substrate in the additional storage cavity 11a. In addition, a sealing effect of the liquid injection hole 11c can also be improved through elastic deformation of the seal block 131.

[0078] It may be understood that, after being inserted into the insertion hole 11b, the atomizer 20 has a gap to cooperate with the inner wall of the insertion hole 11b, to cause the atomizer 20 to be smoothly inserted and subsequently extracted. However, a risk that the gap between the atomizer and the inner wall of the insertion hole 11b causes leakage of the aerosol generating substrate exists.

[0079] In some embodiments, referring to FIG. 3 and FIG. 6, the seal plug 13 includes a seal ring 132, and the seal ring 132 is provided with an avoidance hole 132a extending through the seal ring. At least part of the seal ring 132 is located in the insertion hole 11b and hermetically attached to the inner wall of the insertion hole 11b, and the avoidance hole 132a is configured for insertion of the atomizer 20 to enter the insertion hole 11b.

[0080] It may be understood that at least part of the inner wall of the avoidance hole 132a is configured to be hermetically attached to the atomizer 20, to reduce a risk that the aerosol generating substrate leaks between the atomizer 20 and the inner wall of the insertion hole 11b.

[0081] In some embodiments, referring to FIG. 6, the inner wall of the avoidance hole 132a is provided with a seal protrusion. The seal protrusion is configured to be hermetically attached to the atomizer 20, to improve the sealing effect.

[0082] The seal block 131 uses a food-grade material, for example, food-grade silicon, to reduce a probability that the seal block 131 may cause pollution to the aerosol generating substrate in the additional storage cavity 11a. In addition, a sealing effect of the avoidance hole 132a can also be improved through elastic deformation of the seal block 131.

[0083] In some embodiments, referring to FIG. 6, the seal ring 132 is in an annular structure, to improve the sealing effect.

[0084] In some embodiments, referring to FIG. 6, the seal plug 13 includes a seal base 133. The seal block 131 and the seal ring 132 are both arranged on the seal base 133, and the seal plug 13 is of an integral structure, thereby helping reduce a quantity of parts of the additional e-liquid tank 10.

[0085] In some embodiments provided with the first housing 111 and the second housing 112, referring to FIG. 3, the liquid injection hole 11c and the insertion hole 11b are located on the same one of the first housing 111 and the second housing 112, and the liquid injection hole 11c and the insertion hole 11b both extend along the first direction. In this way, a distance between the seal ring 132 and the seal block 131 is facilitated to reduce, thereby helping reducing a dimension of the seal plug 13.

[0086] The embodiments of the utility model further provide an aerosol generating device. Referring to FIG. 7 to FIG. 10, the aerosol generating device includes an atomizer 20 and the additional e-liquid tank 10 of any one of the foregoing embodiments. The atomizer 20 includes a mounting assembly 21 and an atomization core 22, the mounting assembly 21 is provided with an accommodating cavity 21a therein, the accommodating cavity 21a is provided with the atomization core 22 therein, the mounting assembly 21 is provided with an insertion column 211, the insertion column 211 is provided with an exchange channel 211a, the exchange channel 211a is in communication with the accommodating cavity 21a and an exterior of the atomizer 20, the insertion column 211 is provided with an exchange hole 211b, the exchange hole 211b extends through the insertion column 211, and the exchange hole 211b is in communication with the exchange channel 211a and the additional storage cavity 11a in a state in which the insertion column 211 pushes the blocking portion 121 to be separated from the insertion hole 11b.

[0087] The atomization core 22 is configured to convert the aerosol generating substrate into the aerosol by heating or the like. After being discharged from the atomizer 20, the aerosol is used for being inhaled by the user.

[0088] The insertion column 211 is inserted into the insertion hole 11b and is abutted against the blocking portion 121, to push the blocking portion 121 to be separated from the housing assembly 11. At least part of the exchange hole 211b enters the additional storage cavity 11a. The aerosol generating substrate in the additional storage cavity 11a enters the exchange channel 211a through the exchange hole 211b, and further enters the accommodating cavity 21a and is absorbed by the atomization core 22, to prolong a service life of the atomization core 22. In addition, the air in the accommodating cavity 21a can enter the additional storage cavity 11a through the exchange channel 211a and the exchange hole 211b, to reduce a probability that a negative pressure occurs in the additional storage cavity 11a and suppress the aerosol generating substrate from entering the exchange channel 211a through the exchange hole 211b, so that the aerosol generating substrate is replenished in time.

[0089] In some embodiments, an end of the exchange channel 211a close to the blocking portion 121 is a closed end, and an end of the insertion column 211 inserted into one end of the additional storage cavity 11a can abut against the blocking portion 121. Therefore, a contact area between the insertion column 211 and the blocking portion 121 is increased, which helps stabilize a relative position of the insertion column and the blocking portion, thereby reducing a risk that the blocking portion 121 covers the exchange hole 211b due to shaking or vibration during use of the aerosol generating device.

[0090] In some other embodiments, referring to FIG. 10 and FIG. 11, an end of the exchange channel 211a close to the blocking portion 121 is an open end, so that a part of the blocking portion 121 can be embedded into the exchange channel 211a, thereby limiting a position of the blocking portion 121 through the inner wall of the exchange channel 211a and reducing a risk that the blocking portion 121 covers the exchange hole 211b due to shaking or vibration during use of the aerosol generating device.

[0091] In some embodiments, the atomizer 20 and the additional e-liquid tank 10 are detachably connected to each other.

[0092] A specific manner of implementing the detachable connection is not limited. For example, one of the atomizer 20 and the additional e-liquid tank 10 is provided with an elastic snap, and the other is provided with a mounting groove. The elastic snap can be inserted into the mounting groove or separated from the mounting groove through elastic deformation.

[0093] It may be understood that, referring to FIG. 10, the insertion column 211 is inserted into the avoidance hole 132a.

[0094] In some embodiments, referring to FIG. 9 and FIG. 10, the insertion column 211 and the insertion hole 11b both extend along the first direction, and the exchange hole 211b is located on a side of the insertion column 211 perpendicular to the first direction.

[0095] The insertion column 211 abuts against with the blocking portion 121 along the first direction. Therefore, a probability that the blocking portion 121 blocks the exchange hole 211b is reduced, and smooth circulation of the aerosol generating substrate and the air flow between the exchange channel 211a and the additional storage cavity 11a is facilitated.

[0096] In some embodiments, referring to FIG. 10 and FIG. 11, a side of the exchange hole 211b close to the blocking portion 121 along the first direction is open, so that after the insertion column 211 enters the additional storage cavity 11a, the aerosol generating substrate can immediately enter the exchange channel 211a, which helps increase a speed of replenishing the aerosol generating substrate, shortens a dimension of the insertion column 211 along the first direction, and causes the structure of the atomizer 20 to be more compact.

[0097] One or more exchange holes 211b may be arranged.

[0098] In some embodiments in which a plurality of exchange holes 211b are arranged, referring to FIG. 10 and FIG. 11, at least part of the exchange holes 211b are located above the exchange channel 211a along an axial direction of the aerosol generating device.

[0099] The axial direction of the aerosol generating device refers to a flow direction of discharging an aerosol from the aerosol generating device. In a process of using the aerosol generating device by the user, the axial direction of the aerosol generating device is generally along a vertical direction.

[0100] The direction above the exchange channel 211a refers to a direction of the exchange channel 211a away from the direction of gravity in a process of using the aerosol generating device by the user.

[0101] When the user uses the aerosol generating device, because the density of the air in the exchange channel 211a is lower than that of the aerosol generating substrate, bubbles formed by the air may more easily gather above the exchange channel 211a.

[0102] In this way, the bubbles are facilitated to enter the additional storage cavity 11a from the exchange hole 211b, thereby further reducing a probability that a negative pressure occurs in the additional storage cavity 11a.

[0103] In some embodiments, referring to FIG. 8 and FIG. 9, the mounting assembly 21 is provided with an air outlet channel 21b therein, the air outlet channel 21b is in communication with an atomization cavity 22 in the atomization core and the exterior of the atomizer 20, and an axial direction of the insertion column 211 is perpendicular to an air outlet direction of the air outlet channel.

[0104] The axial direction of the insertion column 211 refers to a direction in which the insertion column 211 is inserted into the additional storage cavity 11a.

[0105] In this way, in a state in which the user inhales the aerosol, a height difference in the direction of gravity between a liquid surface of the aerosol generating substrate in the additional storage cavity 11a and the atomization core 22 is facilitated to reduce, thereby reducing a risk of leakage of the aerosol generating substrate because a pressure generated due to the height difference acts on the atomization core 22, and helping improve a leak-proof effect on the aerosol generating substrate.

[0106] In a state in which the user inhales the aerosol, the aerosol generated by the atomization core 22 enters the atomization cavity, and is discharged from the outlet of the air outlet channel 21b into the mouth of the user. In this state, the third direction is substantially along a vertical direction. In other words, the third direction is parallel to the direction of gravity, or an included angle between the third direction and the direction of gravity is an acute angle.

[0107] In some embodiments, the extension direction of the elastic reset portion 122, the first direction, and the axial direction of the aerosol generating device are perpendicular to each other. In this way, in a case that two elastic reset portions 122 are arranged and the two elastic reset portions 122 are uniformly arranged, the insertion hole 11b may be arranged below the additional e-liquid tank 10 as much as possible, so that the aerosol generating substrate in the additional storage cavity 11a can flow out of the additional storage cavity 11a as much as possible under the effect of gravity.

[0108] In some embodiments, referring to FIG. 9, the atomization core 22 and the inner wall of the accommodating cavity 21a jointly define a main storage cavity 21c, the main storage cavity 21c is in communication with the exchange channel 211a, the atomizer 20 further includes a liquid storage member 23, the liquid storage member 23 is located in the main storage cavity 21c, and the liquid storage member 23 is provided with a pore to absorb the aerosol generating substrate through a capillary action. In addition, because the liquid storage member 23 is arranged, the aerosol generating substrate in the main storage cavity 21c does not always flow to the atomization core 22 due to the gravity when the additional e-liquid tank 10 is removed, thereby causing liquid leakage.

[0109] The liquid storage member 23 has a plurality of pores. After the liquid storage member 23 contacts the aerosol generating substrate, the aerosol generating substrate can be absorbed by the liquid storage member 23 and stored in a space in the pores through the capillary action. At least some of the pores are in communication with each other, so that the aerosol generating substrate can be transferred through the liquid storage member 23 to the atomization core 22 in fluid communication with the liquid storage member 23.

[0110] In this way, after the aerosol generating substrate on the atomization core 22 is consumed to a certain extent, the aerosol generating substrate can be replenished to the atomization core 22 through the liquid storage member 23, so that the concentration of the aerosol generating substrate in the atomization core 22 is maintained within a certain range. In addition, due to existence of the pores, the airflow can also pass through the liquid storage member 23 through the pores that are in communication with each other. In other words, a channel formed by communication between the pores in the liquid storage member 23 not only allows the airflow to pass through, but also allows the aerosol generating substrate to flow through.

[0111] The aerosol generating substrate in the additional storage cavity 11a enters the main storage cavity 21c, and is absorbed by the liquid storage member 23, and is then fed to the atomization core 22 through the liquid storage member 23.

[0112] The embodiments / implementations of the utility model may be combined with each other without contradictions.

[0113] The foregoing are merely preferred technical solutions in the embodiments of the utility model and are not intended to limit the protection scope of the embodiments of the utility model. For a person skilled in the art, the embodiments of the utility model may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the embodiments of the utility model shall fall within the protection scope of the embodiments of the utility model.

Examples

Embodiment Construction

[0026]It should be noted that technical features in embodiments of the utility model may be mutually combined in case of no conflict. The detailed descriptions in specific implementations should be understood as explanatory descriptions of ideas of the embodiments of the utility model, and should not be considered as improper limitations to the embodiments of the utility model.

[0027]In descriptions of the embodiments of the utility model, an orientation or position relationship of a "first direction" is based on an orientation or position relationship shown by an arrow X in FIG. 3 and FIG. 9. An orientation or position relationship of a "second direction" is based on an orientation or position relationship shown by an arrow Y in FIG. 5. Orientations or position relationships indicated by an "air outlet direction of an air outlet channel" and an "axial direction of an aerosol generating device" are based on an orientation or position relationship shown by an arrow Z in FIG. 7, FIG. 9...

Claims

1. An additional e-liquid tank, configured to provide an aerosol generating substrate to an atomizer, characterized in that the additional e-liquid tank comprises: a housing assembly, provided with an additional storage cavity and an insertion hole, wherein the insertion hole is in communication with the additional storage cavity and an exterior of the additional e-liquid tank, and the additional storage cavity is configured to store the aerosol generating substrate; and a seal member, comprising a blocking portion and an elastic reset portion, wherein the blocking portion is arranged in the additional storage cavity and blocks the insertion hole, a part of the elastic reset portion is fixed relative to the housing assembly, the insertion hole is configured for insertion of the atomizer to push the blocking portion to be separated from the insertion hole, and in a state in which the blocking portion is separated from the insertion hole, the elastic reset portion is elastically deformed to cause the blocking portion to generate a movement tendency to move toward the insertion hole to block the insertion hole.

2. The additional e-liquid tank of claim 1, characterized in that a plurality of elastic reset portions are arranged, the insertion hole extends along a first direction, the elastic reset portions extend perpendicular to the first direction, and the elastic reset portions are uniformly arranged around the blocking portion with an axis extending along the first direction.

3. The additional e-liquid tank of claim 2, characterized in that two elastic reset portions are arranged, a ratio of a dimension of the elastic reset portion along a second direction to a dimension of the elastic reset portion along the first direction is not less than 3.

4. The additional e-liquid tank of claim 3, characterized in that the first direction, the second direction, and an extension direction of the elastic reset portion are perpendicular to each other.

5. The additional e-liquid tank of claim 1, characterized in that the housing assembly comprises a first housing and a second housing, the seal member further comprises a seal portion, the elastic reset portion is connected between the blocking portion and the seal portion, a mounting space is arranged in the second housing, a side of the mounting space is open, the first housing is arranged to cover an open area of the mounting space to form the additional storage cavity together with the second housing, the seal portion is sandwiched between the first housing and the second housing, and the insertion hole is provided on at least one of the first housing and the second housing.

6. The additional e-liquid tank of claim 5, characterized in that the insertion hole extends through the first housing, a side of the mounting space along the first direction is open, the insertion hole extends along the first direction, an inner wall of the mounting space is provided with a stop rib extending along the first direction, and the stop rib is located on a side of the seal portion that faces away from the first housing and is in stop-fit with the seal portion along the first direction.

7. The additional e-liquid tank of claim 1, characterized by further comprising a seal plug, the seal plug comprises a seal block, the housing assembly is further provided with a liquid injection hole, the liquid injection hole is in communication with the additional storage cavity and the exterior of the additional e-liquid tank, and the seal block is configured to block the liquid injection hole from the exterior of the housing assembly.

8. The additional e-liquid tank of claim 1 or 7, characterized in that the seal plug comprises a seal ring, the seal ring is provided with an avoidance hole extending through the seal ring, at least part of the seal ring is located in the insertion hole and hermetically attached to an inner wall of the insertion hole, and the avoidance hole is configured for insertion of the atomizer to enter the insertion hole.

9. The additional e-liquid tank of claim 1, characterized in that an edge of a connecting opening between the insertion hole and the additional storage cavity is provided with a chamfer.

10. The additional e-liquid tank of claim 1 or 9, characterized in that an edge of the blocking portion facing a side of the insertion hole is provided with a chamfer.

11. An aerosol generating device, characterized by comprising an atomizer and the additional e-liquid tank of any of claims 1 to 10, wherein the atomizer comprises a mounting assembly and an atomization core, the mounting assembly is provided with an accommodating cavity therein, the accommodating cavity is provided with the atomization core therein, the mounting assembly is provided with an insertion column, the insertion column is provided with an exchange channel, the exchange channel is in communication with the accommodating cavity and an exterior of the atomizer, the insertion column is provided with an exchange hole, the exchange hole extends through the insertion column, and the exchange hole is in communication with the exchange channel and the additional storage cavity in a state in which the insertion column pushes the seal member to be separated from the insertion hole.

12. The aerosol generating device of claim 11, characterized by comprising a plurality of exchange holes, wherein at least some of the exchange holes are located above the exchange channel along an axial direction of the aerosol generating device.

13. The aerosol generating device of claim 11 or 12, characterized in that the mounting assembly is provided with an air outlet channel therein, the air outlet channel is in communication with an atomization cavity in the atomization core and the exterior of the atomizer, and an axial direction of the insertion column is perpendicular to an air outlet direction of the air outlet channel.

14. The aerosol generating device of claim 11, characterized in that the atomization core and an inner wall of the accommodating cavity jointly define a main storage cavity, the main storage cavity is in communication with the exchange channel, the atomizer further comprises a liquid storage member, the liquid storage member is located in the main storage cavity, the liquid storage member is provided with a pore to absorb an aerosol generating substrate through a capillary action, and the liquid storage member is in fluid communication with the atomization core.

Images