AEROSOL GENERATING DEVICE AND AEROSOL GENERATING APPARATUS

CROSS-REFERENCE TO PRIOR APPLICATION

[0001]Priority is claimed to Chinese Patent Application No. 202520090612.8, filed on January 14, 2025, the entire disclosure of which is hereby incorporated by reference herein.

FIELD

[0002] The application relates to the field of atomization technologies, and in particular, to an aerosol generating device and an aerosol generating apparatus.

BACKGROUND

[0003] An aerosol generating device is a device that can atomize an aerosol generating substrate to generate an aerosol. In the related art, the aerosol generating device stores a liquid aerosol generating substrate in a liquid storage cavity and heats and atomizes the aerosol generating substrate using a heating element to generate the aerosol. Because the aerosol generating substrate in the liquid storage cavity is gradually consumed, liquid replenishment is needed when there is a relatively small amount of the aerosol generating substrate. The aerosol generating device in the related art is equipped with a liquid storage bottle, and the aerosol generating substrate stored in the liquid storage bottle can be supplied to the liquid storage cavity, thereby effectively prolonging the use duration of the aerosol generating device. However, an existing liquid guiding structure between the liquid storage cavity and the liquid storage bottle is relatively complex, and needs an additional adjustment structure such as a valve, resulting in complicated manufacturing and assembly processes and high production costs. In addition, a user needs to manually operate the adjustment structure to enable the aerosol generating substrate in the liquid storage bottle to be guided into the liquid storage cavity, which is not convenient in use.

SUMMARY

[0004] In an embodiment, the present invention provides an aerosol generating device, comprising: a shell; and an atomization assembly, wherein the shell is formed with a first cavity and a second cavity, the first cavity being configured to store an aerosol generating substrate, the atomization assembly being disposed in the second cavity, the first cavity being in communication with the second cavity, the first cavity and the second cavity being disposed in parallel, wherein the shell comprises side surfaces and a bottom surface that are connected, the side surfaces comprising a first side surface and a second side surface that are oppositely disposed, the first side surface being closer to the first cavity than the second side surface, and wherein the bottom surface and the first side surface comprise non-resting surfaces.

BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

[0006]FIG. 1 is a schematic three-dimensional structural view of an aerosol generating apparatus according to some embodiments of the application;

[0007]FIG. 2 is a schematic three-dimensional structural view of the aerosol generating apparatus shown in FIG. 1 from another perspective;

[0008]FIG. 3 is a schematic vertical sectional structural view of the aerosol generating apparatus shown in FIG. 1;

[0009]FIG. 4 is a schematic vertical sectional structural view of a shell of an aerosol generating device according to some embodiments of the application;

[0010]FIG. 5 is a schematic structural view of the aerosol generating apparatus tilted on a placement surface in a front-rear direction according to some embodiments of the application;

[0011]FIG. 6 is a schematic sectional structural view of the aerosol generating apparatus shown in FIG. 5;

[0012]FIG. 7 is a schematic vertical sectional structural view of an aerosol generating apparatus according to some other embodiments of the application;

[0013]FIG. 8 is a schematic enlarged structural view of A in FIG. 5; and

[0014]FIG. 9 is a schematic vertical sectional structural view of an aerosol generating apparatus according to some other embodiments different from the embodiments shown in FIG. 3 and FIG. 7.

DETAILED DESCRIPTION

[0015] In an embodiment, the present invention provides an improved aerosol generating device and an improved aerosol generating apparatus.

[0016] In an embodiment, the present invention provides an aerosol generating device, including a shell and an atomization assembly.

[0017] The shell is formed with a first cavity and a second cavity. The first cavity is configured to store an aerosol generating substrate. The atomization assembly is disposed in the second cavity. The first cavity is in communication with the second cavity. The first cavity and the second cavity are disposed in parallel.

[0018] The shell includes side surfaces and a bottom surface that are connected. The side surfaces include a first side surface and a second side surface that are oppositely disposed. The first side surface is closer to the first cavity than the second side surface.

[0019] The bottom surface and the first side surface are non-resting surfaces.

[0020] In some embodiments, the non-resting surfaces include smooth curved surfaces or inclined surfaces.

[0021] In some embodiments, the smooth curved surfaces include arc surfaces or tapered surfaces.

[0022] In some embodiments, the bottom surface includes an arc surface or a tapered surface.

[0023] In some embodiments, the shell includes a shell body and a partition wall connected to the shell body. The partition wall divides a space defined by the shell body into the first cavity and the second cavity. A liquid inlet hole running through the partition wall is provided in the partition wall. The first cavity is in communication with the second cavity through the liquid inlet hole.

[0024] In some embodiments, a running-through direction in which the first cavity runs through the bottom surface and a running-through direction in which the liquid inlet hole runs through the partition wall are perpendicular to each other.

[0025] In some embodiments, a mouthpiece is formed on the shell, and in a horizontal transverse direction, the second cavity is closer to the mouthpiece than the first cavity.

[0026] In some embodiments, the aerosol generating device further includes a power supply assembly. The power supply assembly is disposed in the second cavity and located on one side of the atomization assembly in a vertical direction and is capable of forming an electrical connection with the atomization assembly.

[0027] The application further provides an aerosol generating apparatus, including a liquid storage bottle and the aerosol generating device according to any one of the foregoing aspects. The liquid storage bottle is mounted in the first cavity of the shell of the aerosol generating device.

[0028] In some embodiments, the first cavity runs through the bottom surface, and an opening for mounting the liquid storage bottle is formed on the bottom surface.

[0029] The application has at least the following beneficial effects: Because the bottom surface and the first side surface of the shell are the non-resting surfaces, in a natural resting state in which no external force is applied, the aerosol generating device can only be tilted in the front-rear direction, or tilted toward the second cavity (left side), such that the first cavity can replenish the liquid for the liquid storage cavity of the second cavity. Therefore, the natural tilted state of the aerosol generating device can be utilized to replenish the liquid for the liquid storage cavity of the second cavity, and there is no need for additional complicated parts such as valves inside the shell to activate the liquid replenishment function. As a result, the application has the advantages of simple manufacturing process, low manufacturing costs and simple operation on the premise of realizing the liquid replenishment function.

[0030] In order to have a clearer understanding of the technical features, the objectives, and the effects of the application, specific implementations of the application are now illustrated in detail with reference to the accompanying drawings.

[0031]Referring to FIG. 1 to FIG. 4, the application shows an aerosol generating apparatus according to an embodiment, which includes an aerosol generating device. The aerosol generating device includes a shell 20 and an atomization assembly 30. As shown in FIG. 4, the shell 20 is formed with a first cavity 201 and a second cavity 202. The atomization assembly 30 is disposed in the second cavity 202. A liquid storage cavity is formed in the second cavity 202. The liquid storage cavity is configured to store a liquid aerosol generating substrate, and the atomization assembly 30 is configured to heat and atomize the aerosol generating substrate to generate an aerosol for a user to puff. The first cavity 201 is configured to store the aerosol generating substrate. The first cavity 201 and the second cavity 202 are in communication with each other and are disposed in parallel. The first cavity 201 may be used for replenishing the aerosol generating substrate for the liquid storage cavity of the second cavity 202 after the aerosol generating substrate in the liquid storage cavity is consumed.

[0032] The first cavity 201 and the second cavity 202 are disposed in parallel, that is, projections of the first cavity 201 and the second cavity 202 in a direction partially or completely overlap. For example, the projections of the first cavity 201 and the second cavity 202 along a horizontal transverse direction may partially or completely overlap. For the horizontal transverse direction, reference may be made to an L-R direction marked at an upper portion of FIG. 1 to FIG. 4, where the L direction represents a left side direction in the figure, and the R direction represents a right side direction in the figure. For "horizontal transverse direction", "left side", and "right side" described in this specification, reference may be made to the L-R direction marked in FIG. 1 to FIG. 4. For "vertical direction" described in this specification, reference may be made to a V-V direction marked in FIG. 1 to FIG. 4. In some embodiments, the projections of the first cavity 201 and the second cavity 202 along the horizontal transverse direction may partially overlap, which means that the first cavity 201 and the second cavity 202 may have different heights, or the first cavity 201 and the second cavity 202 have a same height, but are not aligned with each other in height. The projections of the first cavity 201 and the second cavity 202 in the horizontal transverse direction completely overlap. In an embodiment, the first cavity 201 and the second cavity 202 have the same height, and are aligned in a height direction.

[0033]In an embodiment, the aerosol generating apparatus further includes a liquid storage bottle 10. The first cavity 201 may be configured to mount the liquid storage bottle 10. The liquid storage bottle 10 is configured to store a liquid aerosol generating substrate. Because each time of atomization consumes the aerosol generating substrate in the liquid storage cavity, the liquid storage bottle 10 may replenish the aerosol generating substrate for the liquid storage cavity in the second cavity 202, thereby improving the use duration of the aerosol generating device. That is, the first cavity 201 implements the function of storing the aerosol generating substrate by using the liquid storage bottle 10 mounted in the first cavity. In addition, the liquid storage bottle 10 may be detachably mounted in the first cavity 201, so as to take out the liquid storage bottle 10 and replenish the aerosol generating substrate into the liquid storage bottle 10.

[0034] Because the aerosol generating device needs to be stored and rested when not in use, a surface on which the aerosol generating device is placed and contacted, that is, a surface on which the aerosol generating device is located in a natural resting state is defined as a placement surface 40. The placement surface 40 may be a surface parallel to the ground, that is, a horizontal surface, such as a desk surface or a shelving surface. When the aerosol generating device rests on the placement surface 40 without an external force, it may be considered that the aerosol generating device is in a natural resting state. With reference to the orientation shown in FIG. 4, when the aerosol generating device is tilted to the right side, the first cavity 201 is closer to the placement surface 40 than the second cavity 202, that is, the liquid storage bottle 10 is closer to the placement surface 40 than the second cavity 202. The height of the liquid storage bottle 10 relative to the placement surface 40 is less than the height of the second cavity 202 relative to the placement surface 40, so that the liquid in the liquid storage bottle 10 cannot enter the second cavity 202. When the aerosol generating device is tilted to the left side, the second cavity 202 is closer to the placement surface 40 than the first cavity 201, that is, the second cavity 202 is closer to the placement surface 40 than the liquid storage bottle 10. The height of the liquid storage bottle 10 relative to the placement surface 40 is greater than the height of the second cavity 202 relative to the placement surface 40, so that the liquid in the liquid storage bottle 10 can enter the second cavity 202, and the liquid in the second cavity 202 does not flow to the liquid storage bottle 10. Referring to FIG. 5 and FIG. 6, FIG. 5 and FIG. 6 each show a state in which the aerosol generating device is tilted onto the placement surface 40 in a front-rear direction. The front-rear direction is perpendicular to a plane formed by the L-R-V directions. As shown in FIG. 5 and FIG. 6, when the aerosol generating device is tilted in the front-rear direction, a liquid level 101 in the liquid storage bottle 10 extends along a length direction of the liquid storage bottle 10 and the liquid in the liquid storage bottle 10 can horizontally flow into the second cavity 202. Therefore, when the aerosol generating device is tilted toward the first cavity 201 (right side), it is difficult to implement the liquid replenishment function of the liquid storage bottle 10. When the aerosol generating device is tilted toward the second cavity 202 (left side) or tilted in the front-rear direction, the liquid replenishment function of the liquid storage bottle 10 can be implemented.

[0035] Referring to FIG. 1 to FIG. 4, the shell 20 includes side surfaces and a bottom surface 21 that are connected and not parallel. Specifically, a mouthpiece 205 is formed on the shell 20. The atomization assembly 30 allows the aerosol generated by heating and atomizing the aerosol generating substrate to overflow from the mouthpiece 205, so that a user can inhale the aerosol at the mouthpiece 205. The bottom surface 21 of the shell 20 is located at an end of the shell 20 away from the mouthpiece 205. The side surfaces include a first side surface 221 and a second side surface 222 that are oppositely disposed. The first side surface 221 and the second side surface 222 may be parallel to each other. The first side surface 221 is closer to the first cavity 201 than the second side surface 222 in the horizontal transverse direction, and the second side surface 222 is closer to the second cavity 202 than the first side surface 221 in the horizontal transverse direction. For example, in the embodiments shown in FIG. 1 to FIG. 4, the first cavity 201 is offset to the right side of the shell 20, and the second cavity 202 is offset to the left side of the shell 20. A left side surface of the shell 20 is the second side surface 222, and a right side surface of the shell 20 is the first side surface 221.

[0036] The bottom surface 21 and the first side surface 221 are non-resting surfaces. Specifically, the non-resting surface is a surface relative to a resting surface. The resting surface of the aerosol generating device is a surface by which the aerosol generating device can be in stable contact with the placement surface 40 without an action of an external force. That is, in a natural resting state, the aerosol generating device is in stable contact with the placement surface 40 with its resting surface. On the contrary, the non-resting surface of the aerosol generating device refers to a surface by which the aerosol generating device cannot be in stable contact with the placement surface 40 without an action of an external force. However, when an external force is applied, the aerosol generating device can also be in stable contact with the placement surface 40 with its non-resting surface. The external force may be a supporting force provided by a person, or a supporting force provided by another solid body.

[0037] In conclusion, because the bottom surface 21 and the first side surface 221 of the shell 20 are non-resting surfaces, in a natural resting state in which no external force is applied, the aerosol generating device can only be tilted in the front-rear direction, or tilted toward the second cavity 202 (left side), such that the first cavity 201 can replenish the liquid for the liquid storage cavity of the second cavity 202. Therefore, the natural tilted state of the aerosol generating device can be utilized to replenish the liquid for the liquid storage cavity of the second cavity 202, and there is no need for additional complicated parts such as valves inside the shell 20 to activate the liquid replenishment function. As a result, the application has the advantages of simple manufacturing process, low manufacturing costs and simple operation on the premise of realizing the liquid replenishment function. When liquid replenishment is not needed, the aerosol generating device may be erected and abutted against another object to obtain support from an external force.

[0038] Further, the non-resting surfaces may include smooth curved surfaces or inclined surfaces. That is, the non-resting surface may be a smooth curved surface or an inclined surface, but is not limited to a smooth curved surface or an inclined surface. The non-resting surface may also have another form. For example, the non-resting surface may be provided with a plurality of projections having different heights, and each projection may be a smooth curved surface, a flat surface, or an inclined surface. The heights of the projections may decrease one by one or increase one by one along the same direction. Alternatively, the projections may be arranged in an irregular manner. In conclusion, the form of the non-resting surface can be such that when the aerosol generating device is in contact with the placement surface 40 with its non-resting surface without an external force, the aerosol generating device is in an unbalanced and unstable state. Therefore, the aerosol generating device cannot be in stable contact with the placement surface 40 with its non-resting surface without an action of an external force. As shown in FIG. 4, in a first embodiment, the bottom surface 21 includes a smooth curved surface. When the aerosol generating device is in the erected state, the smooth curved surface is in contact with the placement surface 40. As shown in FIG. 9, in a second embodiment, the bottom surface 21 includes two inclined surfaces facing opposite directions. The inclined surface is inclined relative to the placement surface 40. An angle greater than 0° and less than 90° is formed between the inclined surface and the placement surface 40, and the inclined surface is not in contact with the placement surface 40.

[0039] In an embodiment, the bottom surface 21 of the shell 20 includes a smooth curved surface or an inclined surface, and the placement surface 40 of the aerosol generating device is typically a horizontal surface (for example, a desk surface). Compared with contact between a flat bottom surface and a horizontal surface, the contact area between the smooth curved surface and the horizontal surface is relatively small, and may be considered as point contact. Therefore, when the aerosol generating device is in contact with the placement surface 40 with its bottom surface 21, it is difficult for the aerosol generating device to keep balanced, thereby increasing difficulty in placing the aerosol generating device erectly (FIG. 3 and FIG. 4 show the state in which the aerosol generating device is placed erectly). Because the inclined surface that is not in contact with the placement surface 40 is designed on the bottom surface 21, compared with contact between a flat bottom surface and a horizontal surface, the contact area between the bottom surface 21 with the inclined surface and the placement surface 40 is relatively small, thereby increasing difficulty in keeping balance of the aerosol generating device in the erected state. Because the first side surface 221 close to the first cavity 201 includes at least one of a smooth curved surface and an inclined surface, when the aerosol generating device is in contact with the placement surface 40 with its first side surface 221, it is also difficult for the aerosol generating device to keep balance, thereby increasing difficulty in tilting the aerosol generating device toward the first cavity 201 (right side). Because the difficulty in placing the aerosol generating device erectly and the difficulty in tilting the aerosol generating device toward the first cavity 201 (right side) increase, in a natural resting state in which no external force is applied, the aerosol generating device can only be tilted in the front-rear direction or tilted toward the second cavity 202 (left side), such that the first cavity 201 can replenish the liquid for the liquid storage cavity of the second cavity 202. Therefore, the natural tilted state of the aerosol generating device can be utilized to replenish the liquid for the liquid storage cavity of the second cavity 202, and there is no need for additional complicated parts such as valves inside the shell 20 to activate the liquid replenishment function. As a result, the application has the advantages of simple manufacturing process, low manufacturing costs and simple operation on the premise of realizing the liquid replenishment function. When liquid replenishment is not needed, the aerosol generating device may be erected and abutted against another object.

[0040] Specifically, the smooth curved surface may include an arc surface or a tapered surface. That is, the bottom surface 21 may be an arc surface or a tapered surface, or may include a surface of another shape. Similarly, the first side surface 221 may be an arc surface or a tapered surface, or may include a surface of another shape. For example, in the embodiments shown in FIG. 1 to FIG. 6, the bottom surface 21 and the first side surface 221 each include an arc surface. For example, in another embodiment shown in FIG. 7, the bottom surface 21 includes a tapered surface. The tapered surface has a tip, and the bottom surface 21 can only be in contact with the placement surface 40 with this tip. The contact area between the bottom surface 21 and the placement surface 40 is very small. Therefore, it is very difficult for the aerosol generating device to be placed erectly.

[0041] As shown in FIG. 3, FIG. 4, and FIG. 6, a liquid inlet hole 204 is provided inside the shell 20 between the first cavity 201 and the second cavity 202. The liquid inlet hole 204 is separately in communication with the first cavity 201 and the second cavity 202. The liquid in the liquid storage bottle 10 enters the second cavity 202 through the liquid inlet hole 204. When the aerosol generating device is tilted toward the second cavity 202 (left side), the second cavity 202 is closer to the placement surface 40 than the first cavity 201, that is, the second cavity 202 is located below the first cavity 201. In this case, the liquid storage bottle 10 can supply the liquid to the second cavity 202 under the action of gravity. However, the liquid in the liquid storage bottle 10 floods into the liquid inlet hole 204, causing a large liquid supply amount/liquid supply rate, which may increase a risk of liquid leakage. To obtain a suitable liquid supply amount, as shown in FIG. 2, in some embodiments, similar to the bottom surface 21 and the first side surface 221, the second side surface 222 may also include at least one of a smooth curved surface and an inclined surface. Similarly, the smooth curved surface of the second side surface 222 may also include at least one of an arc surface and a tapered surface. Because the second side surface 222 close to the second cavity 202 also includes the smooth curved surface, when the aerosol generating device is in contact with the placement surface 40 with its second side surface 222, it is difficult for the aerosol generating device to keep balanced, thereby increasing difficulty in tilting the aerosol generating device toward the second cavity 202 (left side). Because the difficulty in tilting the aerosol generating device toward the second cavity 202 (left side) increases, in a natural resting state in which no external force is applied, the aerosol generating device can only be tilted in the front-rear direction, such that the liquid storage bottle 10 can replenish the liquid for the liquid storage cavity of the second cavity 202. As shown in FIG. 6, when the aerosol generating device is tilted in the front-rear direction, the liquid in the liquid storage bottle 10 horizontally flows to the liquid inlet hole 204, and the liquid supply amount/liquid supply rate is less than the liquid supply amount/liquid supply rate when the aerosol generating device is tilted toward the left side. In this way, the risk of liquid leakage can be reduced.

[0042] As shown in FIG. 1 to FIG. 4, in some embodiments, the first cavity 201 runs through the bottom surface 21, and an opening 210 for mounting the liquid storage bottle 10 is formed on the bottom surface 21. Specifically, the first cavity 201 is substantially an empty cavity extending in the vertical direction. In addition, the first cavity 201 is located on the right side of the second cavity 202 in the horizontal transverse direction. The liquid storage bottle 10 may be mounted into the first cavity 201 through the opening 210 on the bottom surface 21. Because the first cavity 201 runs through the bottom surface 21, the area of the bottom surface 21 is reduced, so that the contact area between the bottom surface 21 and the placement surface 40 is further reduced, thereby further increasing difficulty in placing the aerosol generating device erectly.

[0043]As shown in FIG. 4, in some embodiments, the shell 20 includes a shell body 200 and a partition wall 203 connected to the shell body 200. The partition wall 203 divides a space defined by the shell body 200 into the first cavity 201 and the second cavity 202. The mouthpiece 205 is formed on the shell body 200. Outer surfaces of the shell body 200 include the side surfaces and the bottom surface 21. Specifically, the first cavity 201 is located on the right side of the partition wall 203, and the second cavity 202 is located on the left side of the partition wall 203. The liquid inlet hole 204 running through the partition wall 203 is provided in the partition wall 203, and the first cavity 201 is in communication with the second cavity 202 through the liquid inlet hole 204.

[0044] As shown in FIG. 4, in some embodiments, a running-through direction X in which the first cavity 201 runs through the bottom surface 21 is not parallel to a running-through direction Y in which the liquid inlet hole 204 runs through the partition wall 203. Therefore, the mouth of the liquid storage bottle 10 is not aligned with the liquid inlet hole 204, and when the liquid storage bottle 10 replenishes the liquid into the liquid storage cavity of the second cavity 202, a suitable liquid supply amount/liquid supply rate can be obtained. On the contrary, if the running-through direction X in which the first cavity 201 runs through the bottom surface 21 is parallel to the running-through direction Y in which the liquid inlet hole 204 runs through the partition wall 203, the mouth of the liquid storage bottle 10 is aligned with the liquid inlet hole 204, which easily causes an excessively large liquid supply amount/liquid supply rate, posing a potential risk of liquid leakage.

[0045]Specifically, the running-through direction X in which the first cavity 201 runs through the bottom surface 21 and the running-through direction Y in which the liquid inlet hole 204 runs through the partition wall 203 may be perpendicular to each other. Alternatively, an angle greater than 0° and less than 180° may be formed between the running-through direction X in which the first cavity 201 runs through the bottom surface 21 and the running-through direction Y in which the liquid inlet hole 204 runs through the partition wall 203. As shown in FIG. 1 to FIG. 4, in some embodiments, in the horizontal transverse direction, the second cavity 202 is closer to the mouthpiece 205 than the first cavity 201. That is, the mouthpiece 205 is offset to one side of the shell 20 in the horizontal transverse direction. Therefore, the center of gravity of the shell 20 is offset to a side (left side) close to the second cavity 202. Because the center of gravity of the shell 20 is offset, it is more difficult for the aerosol generating device to be placed erectly when no external force is applied to the aerosol generating device. Because the center of gravity of the shell 20 is offset to the side (left side) close to the second cavity 202, when no external force is applied to the aerosol generating device, it is more difficult to tilt the aerosol generating device toward the first cavity 201 (right side), thereby further increasing the difficulty in placing the aerosol generating device erectly and tilting the aerosol generating device toward the right side.

[0046]As shown in FIG. 3, in some embodiments, the aerosol generating device further includes a power supply assembly 50. The power supply assembly 50 is disposed in the second cavity 202 and located on one side of the atomization assembly 30 in the vertical direction and is capable of forming an electrical connection with the atomization assembly 30. Specifically, the power supply assembly 50 is configured to supply power to the atomization assembly 30, control an atomization switch and an atomization power of the atomization assembly 30, and the like. The power supply assembly 50 may include elements such as a battery cell 501 and a control circuit board 502. The battery cell 501 may supply power to the atomization assembly 30. The control circuit board 502 may control the atomization switch and the atomization power of the atomization assembly 30, and the like. Because the power supply assembly 50 is disposed in the second cavity 202 and located on one side of the atomization assembly 30 in the vertical direction, both the power supply assembly 50 and the atomization assembly 30 are offset to the left side of the first cavity 201 in the horizontal transverse direction, and the center of gravity of the entire aerosol generating device is offset to the side (left side) close to the second cavity 202, thereby further increasing the difficulty in placing the aerosol generating device erectly and tilting the aerosol generating device to the right side.

[0047] As shown in FIG. 1 and FIG. 2, in some embodiments, the side surfaces further include a third side surface 223 and a fourth side surface 224 that are oppositely disposed. The third side surface 223 is connected between the first side surface 221 and the second side surface 222, and the fourth side surface 224 is also connected between the first side surface 221 and the second side surface 222. The third side surface 223 and the fourth side surface 224 may be disposed in parallel. Referring to the orientation of FIG. 1 to FIG. 4, the first side surface 221 is the right side surface of the shell 20, the second side surface 222 is the left side surface of the shell 20, the third side surface 223 is the front side surface of the shell 20, and the fourth side surface 224 is the rear side surface of the shell 20.

[0048]As shown in FIG. 5 and FIG. 8, in some embodiments, the side surface includes a first end portion 22A connected to the bottom surface 21 and a second end portion 22B away from the bottom surface 21. That is, the first side surface 221, the second side surface 222, the third side surface 223, and the fourth side surface 224 each have the first end portion 22A and the second end portion 22B. The second end portion 22B is configured to contact the placement surface 40 on which the aerosol generating device is located when the aerosol generating device is in the natural resting state. When the aerosol generating device is in the natural resting state, the height of the first end portion 22A relative to the placement surface 40 is greater than the height of the second end portion 22B relative to the placement surface 40. In other words, when the aerosol generating device is in the natural resting state, the first end portion 22A and the placement surface 40 are disposed at an interval, and the second end portion 22B is in contact with the placement surface 40. In the embodiment shown in FIG. 5 and FIG. 6, the first end portion 22A of the third side surface 223 and the placement surface 40 are disposed at an interval, and the second end portion 22B of the third side surface 223 is in contact with the placement surface 40. That is, the height H1 of the first end portion 22A relative to the placement surface 40 is greater than the height H2 of the second end portion 22B relative to the placement surface 40. Specifically, H2 may be equal to 0, and H1 > H2. Therefore, as shown in FIG. 6, when the aerosol generating device is tilted, the side surface of the shell 20 is inclined at an angle relative to the placement surface 40, so that the liquid storage bottle 10 has an inclination angle relative to the placement surface 40, and the bottom of the liquid storage bottle 10 is higher than the mouth of the liquid storage bottle, which can increase the liquid supply amount/liquid supply rate and facilitate liquid guiding. However, in some other embodiments, H1 = H2 = 0, that is, the second side surface 222, the third side surface 223, or the fourth side surface 224 is in direct contact with the placement surface 40, and the aerosol generating device is laid flat. When the liquid storage bottle 10 has enough liquid, the liquid storage bottle 10 can also replenish the liquid for the liquid storage cavity in the second cavity 202 through the liquid inlet hole 204.

[0049]In some embodiments, to create a height difference between the first end portion 22A and the second end portion 22B of the side surface, a protrusion 23 is provided at at least one position of the side surface other than the first side surface 221. That is, the protrusion 23 may be provided on one of the second side surface 222, the third side surface 223, and the fourth side surface 224. Alternatively, protrusions 23 may be provided on two of the second side surface 222, the third side surface 223, and the fourth side surface 224. Alternatively, protrusions 23 may be provided on all of the second side surface 222, the third side surface 223, and the fourth side surface 224. A distance between the protrusion 23 and the first end portion 22A is less than a distance between the protrusion 23 and the second end portion 22B. That is, the protrusion 23 is provided close to the bottom surface 21. The protrusion 23 is configured to contact the placement surface 40 on which the aerosol generating device is located when the aerosol generating device is in the natural resting state. When the aerosol generating device is in the natural resting state, the second end portion 22B of the side surface and the protrusion 23 are separately in contact with the placement surface 40. In the embodiment shown in FIG. 5 and FIG. 6, the third side surface 223 and the fourth side surface 224 are both provided with the protrusions 23. Therefore, when the aerosol generating device is tilted in the front-rear direction, the aerosol generating device is inclined relative to the placement surface 40, and the liquid storage bottle 10 has an inclination angle relative to the placement surface 40, resulting in smoother liquid guiding.

[0050] While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

[0051] The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.