Atomizer and aerosol generating device

Abstract

The embodiment of the utility model provides an atomizer and an aerosol generating device, the aerosol generating device is provided with an additional storage cavity, and the atomizer comprises an atomizing core, a liquid storage part and a mounting seat; the liquid storage part is provided with a hole so as to absorb an aerosol generating matrix through capillary action, and the liquid storage part is in fluid communication with the atomizing core; the mounting base comprises a mounting cavity, a liquid inlet channel and a ventilation channel, a liquid storage part is arranged in the mounting cavity, the liquid inlet channel communicates with the mounting cavity and the additional storage cavity, the ventilation hole communicates with the mounting cavity and the exterior of the atomizer, and the pores form at least part of the ventilation channel. According to the atomizer provided by the embodiment of the utility model, at least part of the channel for supplying the aerosol generating matrix to the atomizing core and the ventilation channel for supplementing air to the additional storage cavity is formed by utilizing the pores in the liquid storage part; the liquid storage part is used for absorbing the aerosol generating matrix, so that the risk of leakage of the aerosol generating matrix is reduced.

Description

Technical Field

[0001] Embodiments of the present utility model relate to the technical field of atomization, and more particularly to an atomizer and an aerosol generating device. Background Art

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

[0003] The aerosol generating device includes a main storage chamber, an additional storage chamber, and an atomization core. The atomization core absorbs an aerosol generating matrix from the main storage chamber and converts the aerosol generating matrix into aerosol. After the aerosol generating matrix in the main storage chamber is consumed to a certain extent, the aerosol generating matrix stored in the additional storage chamber enters the main storage chamber to play a supplementary role, thereby extending the service life of the aerosol generating device.

[0004] A ventilation passage is provided in the aerosol generating device. The ventilation passage is used to communicate the additional storage chamber with the outside of the aerosol generating device to maintain the air pressure balance between the additional storage chamber and the outside of the aerosol generating device, facilitating the entry of the aerosol generating matrix stored in the additional storage chamber into the main storage chamber.

[0005] In the related art, the ventilation passage is connected to a suction passage for user inhalation. Therefore, during the process of a user inhaling the aerosol, it is easy for the aerosol generating matrix in the additional storage chamber to enter the suction passage under the action of negative pressure, resulting in leakage of the aerosol generating matrix and having an adverse impact on the user experience. Summary of the Utility Model

[0006] In view of this, embodiments of the present utility model are expected to provide an atomizer and an aerosol generating device that can reduce the probability of leakage of the aerosol generating matrix through the ventilation passage.

[0007] To achieve the above object, the technical solution of the embodiments of the present utility model is realized as follows:

[0008] Embodiments of the present utility model are expected to provide an atomizer for an aerosol generating device. The aerosol generating device is provided with an additional storage chamber. The atomizer includes:

[0009] An atomization core;

[0010] A liquid storage member having pores to absorb the aerosol generating matrix by capillary action. The liquid storage member is in fluid communication with the atomization core;

[0011] A mounting base including a mounting cavity, a liquid inlet passage, and a ventilation passage. The liquid storage member is disposed in the mounting cavity. The liquid inlet passage communicates the mounting cavity with the additional storage chamber. The ventilation passage communicates the mounting cavity with the outside of the atomizer. The pores form at least part of the ventilation passage.

[0012] In some embodiments, the inner wall of the installation cavity is provided with a ventilation groove and a ventilation sub-channel. The ventilation groove is completely open on one side close to the installation cavity along a direction perpendicular to its extension direction. The liquid storage member covers the open part of the ventilation groove. The ventilation sub-channel communicates the installation cavity with the outside of the atomizer. At least one of the liquid inlet channel and the ventilation sub-channel communicates with the ventilation groove.

[0013] In some embodiments, the connection position of the liquid inlet channel and the installation cavity is on the same wall surface of the installation cavity as the ventilation groove.

[0014] In some embodiments, the connection position of the liquid inlet channel and the installation cavity is separated from the ventilation groove. An opening at one end of the ventilation groove along its extension direction communicates with the ventilation sub-channel.

[0015] In some embodiments, an atomization cavity is provided in the atomization core. The installation seat further includes an air outlet channel. The air outlet channel communicates the outside of the installation seat with the atomization cavity. The number of the ventilation sub-channels is at least two. One ventilation sub-channel communicates the opening at one end of the ventilation groove along its extension direction with the air outlet channel. Another ventilation sub-channel communicates the opening at the other end of the ventilation groove along its extension direction with the outside of the atomization cavity.

[0016] In some embodiments, the opening at one end of the ventilation groove along its extension direction communicates with the liquid inlet channel. The pore communicates the ventilation groove with the ventilation sub-channel.

[0017] In some embodiments, the cross-section of the ventilation groove perpendicular to its extension direction is rectangular, and the size of any side of the cross-section ranges from 0.3 mm to 0.6 mm.

[0018] In some embodiments, the area of the cross-section of the ventilation sub-channel perpendicular to its extension direction is not less than the area of the cross-section of the ventilation groove perpendicular to its extension direction.

[0019] In some embodiments, a part of the liquid storage member extends into the liquid inlet channel.

[0020] In the atomizer according to the embodiment of the present utility model, at least part of a channel for supplying an aerosol generating substrate to the atomization core and a ventilation channel for replenishing air to the additional storage cavity are formed by utilizing pores in the liquid storage member, thereby facilitating the smooth supply of the aerosol generating substrate in the additional storage cavity to the atomization core and prolonging the service life; at the same time, by absorbing the aerosol generating substrate by the liquid storage member, the risk of leakage of the aerosol generating substrate is reduced, which is beneficial to improving the user experience; furthermore, the liquid storage member can regulate the supply rate of the aerosol generating substrate flowing to the atomization core, which is beneficial to maintaining the consistency of the aerosol generation amount during each suction process of the user and enhancing the user's taste.

[0021] The embodiment of the present utility model further provides an aerosol generating device, which includes a storage member and the atomizer according to any one of the foregoing embodiments. An additional storage cavity is provided in the storage member. The additional storage cavity is communicated with the liquid inlet channel, and the ventilation channel is communicated with the outside of the aerosol generating device.

[0022] In the aerosol generating device of the present utility model, the aerosol generating substrate stored in the storage member can be replenished into the atomizer, and the air outside the aerosol generating device can enter the atomizer through the ventilation channel and then enter the storage member to achieve the air pressure balance between the additional storage cavity and the outside, facilitating the flow of the aerosol generating substrate between the storage member and the atomizer. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the aerosol generating device in the first embodiment of the present utility model;

[0024] Figure 2 is Figure 1 a sectional view taken along the line A-A in;

[0025] Figure 3 is Figure 2 a partially enlarged view at position B in;

[0026] Figure 4 is Figure 1 a schematic diagram of the atomizer in the embodiment of;

[0027] Figure 5 is Figure 4 a sectional view taken along the line C-C in;

[0028] Figure 6 is Figure 5 a partially enlarged view at position D in;

[0029] Figure 7 is Figure 4 a schematic diagram of the mounting base in the embodiment of;

[0030] Figure 8 is Figure 7 a sectional view taken along the E-E position in

[0031] Figure 9 a sectional view of the aerosol generating device in the second embodiment of the present utility model, and the sectional position is the same as that of the Figure 1 A-A position in

[0032] Figure 10 is Figure 9 a partially enlarged view of the F position in

[0033] Figure 11 is Figure 9 a schematic diagram of the atomizer in the embodiment of

[0034] Figure 12 is Figure 11 a sectional view taken along the G-G position in

[0035] Figure 13 is Figure 12 a partially enlarged view of the H position in

[0036] Figure 14 is Figure 9 a schematic diagram of the mounting base in the embodiment of

[0037] Figure 15 is Figure 14 a sectional view taken along the I-I position in

[0038] Figure 16 a schematic diagram of the mounting base and the cover plate in an embodiment of the present utility model;

[0039] Figure 17 a schematic diagram of the mounting base and the liquid absorbing member in an embodiment of the present utility model;

[0040] Figure 18 is Figure 17 a partially enlarged view of the J position in

[0041] Description of the reference numerals

[0042] 10. Atomizer; 11. Atomization core; 11a. Atomization chamber; 12. Liquid storage member; 13. Mounting base; 13a. Mounting cavity; 13b. Liquid inlet channel; 13c. Ventilation sub-channel; 13d. Ventilation groove; 13e. Air outlet channel; 13f. Guide groove; 13g. First part; 13h. Second part; 131. Flow guiding member; 131a. Flow guiding inclined surface; 132. Body; 133. Sealing cover member; 14. Cover plate; 15. Support member; 15a. Second flow through hole; 16. Positioning member; 20. Storage member; 20a. Additional storage cavity; 20b. Suction channel; 30. Liquid absorbing member; 30a. First flow through hole; 40. Housing. Detailed implementation manners

[0043] It should be noted that, without conflict, the technical features in the embodiments of the present utility model can be combined with each other. The detailed description in the specific implementation manners should be understood as an explanatory illustration of the gist of the embodiments of the present utility model, and should not be regarded as an improper limitation to the embodiments of the present utility model.

[0044] In the description of the embodiments of the present utility model, the "first direction" orientation or positional relationship is based on the Figure 2 and Figure 9 shown orientation or positional relationship. It should be understood that these orientation terms are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present utility model.

[0045] The embodiments of the present utility model provide an atomizer 10, which is used for an aerosol generating device. The atomizer 10 can convert an aerosol generating matrix into an aerosol for a user to inhale. Refer to Figure 1 and Figure 2 and Figure 9 . The aerosol generating device is additionally provided with an additional storage cavity 20a for storing the aerosol generating matrix. The additional storage cavity 20a is communicated with the atomizer 10 so that the aerosol generating matrix in the additional storage cavity 20a can enter the atomizer 10 to achieve the purpose of supplementing the aerosol generating matrix.

[0046] Refer to Figures 2 to 6 and Figures 9 to 13 . The atomizer 10 includes an atomization core 11, a liquid storage member 12 and a mounting seat 13.

[0047] The liquid storage member 12 is provided with pores to be able to absorb the aerosol generating matrix by capillary action. The liquid storage member 12 is in fluid communication with the atomization core 11;

[0048] The mounting seat 13 includes a mounting cavity 13a, a liquid inlet channel 13b and a ventilation channel. The liquid storage member 12 is arranged in the mounting cavity 13a. The liquid inlet channel 13b communicates the mounting cavity 13a with the additional storage cavity 20a. The ventilation channel communicates the mounting cavity 13a with the outside of the atomizer 10. The pores form at least part of the ventilation channel.

[0049] After the aerosol generating matrix contacts the atomization core 11, it can be converted into an aerosol by heating or other means.

[0050] The aerosol generating matrix is a liquid fluid.

[0051] The fluid communication between the liquid storage member 12 and the atomization core 11 means that fluid can flow from one of them to the other. The specific way to achieve fluid communication between the two is not limited. For example, the two are in direct contact, or there is a channel between the two to enable the fluid to pass through the channel to contact the two.

[0052] The liquid storage member 12 has a plurality of pores. After the liquid storage member 12 contacts the aerosol-forming substrate, through capillary action, the aerosol-forming substrate can be absorbed by the liquid storage member 12 and stored in the space within the pores; at least some of the pores communicate with each other so that the aerosol-forming substrate can pass through the liquid storage member 12 and be delivered to the atomization core 11 that is in fluid communication with the liquid storage member 12. In this way, after the aerosol-forming substrate on the atomization core 11 is consumed to a certain extent, the liquid storage member 12 can supply the aerosol-forming substrate to the atomization core 11. At the same time, due to the existence of the pores, the air flow can also pass through the liquid storage member 12 via the interconnected pores. That is to say, the channels formed by the pores in the liquid storage member 12 communicating with each other allow both the air flow and the aerosol-forming substrate to flow through.

[0053] The liquid inlet channel 13b is used to connect the additional storage cavity 20a in the aerosol generating device, so that the aerosol-forming substrate in the additional storage cavity 20a enters the installation cavity 13a and is absorbed by the liquid storage member 12, and then is supplied to the atomization core 11 through the liquid storage member 12.

[0054] The external air of the atomizer 10 can enter the additional storage cavity 20a through the pores of the liquid storage member 12 and the liquid inlet channel 13b to fill the space after the aerosol-forming substrate in the additional storage cavity 20a flows out, which is beneficial to keeping the air pressure in the additional storage cavity 20a balanced with the external air pressure and beneficial to the smooth flow of the aerosol-forming substrate in the additional storage cavity 20a into the installation cavity 13a.

[0055] Due to the absorption effect of the liquid storage member 12 on the aerosol-forming substrate, the risk of leakage of the aerosol-forming substrate in the installation cavity 13a flowing out of the atomizer 10 through the ventilation channel is also reduced.

[0056] Since the liquid storage member 12 is in contact with the atomization core 11, as the aerosol-forming substrate in the atomization core 11 is consumed, the concentration of the aerosol-forming substrate stored in the liquid storage member 12 is higher than the concentration of the aerosol-forming substrate in the atomization core 11, so that the aerosol-forming substrate will diffuse from the liquid storage member 12 to the atomization core 11, maintaining the concentration of the aerosol-forming substrate in the atomization core 11 within a certain range.

[0057] In the atomizer 10 according to the embodiment of the present utility model, at least part of a channel for supplying an aerosol generating substrate to the atomization core 11 and a ventilation channel for replenishing air to the additional storage cavity 20a are formed by utilizing the pores in the liquid storage member 12, which is beneficial to smoothly supply the aerosol generating substrate in the additional storage cavity 20a to the atomization core 11 and is beneficial to extending the service life; meanwhile, by utilizing the absorption of the aerosol generating substrate by the liquid storage member 12, the risk of leakage of the aerosol generating substrate is reduced, which is beneficial to improving the user experience; furthermore, the liquid storage member 12 can regulate the supply rate of the aerosol generating substrate flowing to the atomization core 11, which is beneficial to maintaining the consistency of the aerosol generation amount during each suction process of the user and enhancing the user's taste.

[0058] In some embodiments, referring to Figure 3 and Figure 10 , an atomization core 11 is provided in the installation cavity 13a. It can be understood that the pores of the liquid storage member 12 can be pores that can be identified by the naked eye macroscopically or pores that cannot be identified by the naked eye microscopically, as long as they meet the requirements of absorbing the aerosol generating substrate through capillary action and allowing air flow to pass through.

[0059] The specific form of the liquid storage member 12 is not limited, such as a fiber structure formed by weaving and twisting cotton wool, sponge, chemical fibers such as polyester and nylon, etc.

[0060] In some embodiments, referring to Figure 3 and Figure 10 , at least part of the liquid storage member 12 is located between the communication position of the liquid inlet channel 13b and the installation cavity 13a and the atomization core 11.

[0061] That is to say, the aerosol generating substrate flowing out of the liquid inlet channel 13b must pass through the liquid storage member 12 before coming into contact with the atomization core 11. In this way, the absorption effect of the liquid storage member 12 on the aerosol generating substrate is better exerted, the probability that the aerosol generating substrate flowing out of the liquid inlet channel 13b directly wets the atomization core 11 is reduced, and it is more beneficial to maintaining the consistency of the aerosol generation amount during each suction process of the user.

[0062] It can be understood that since the aerosol generating substrate occupies a part of the pore space in the liquid storage member 12, it has an adverse effect on the efficiency of air flow in and out of the liquid storage member 12.

[0063] In some embodiments, referring to Figures 3 to 8 , Figures 10 to 15, the inner wall of the installation cavity 13a is provided with a ventilation groove 13d and a ventilation sub-channel 13c. The ventilation groove 13d is completely open on one side close to the installation cavity 13a along a direction perpendicular to its extension direction. The liquid storage member 12 is covered on the open part of the ventilation groove 13d. The ventilation sub-channel 13c is provided to communicate the installation cavity 13a with the outside of the atomizer 10. At least one of the liquid inlet channel 13b and the ventilation sub-channel 13c is communicated with the ventilation groove 13d.

[0064] It can be understood that both the ventilation groove 13d and the ventilation sub-channel 13c are part of the ventilation channel.

[0065] Through the arrangement of the ventilation groove 13d, the contact area between the air flow and the liquid storage member 12 is increased, which is beneficial to improving the efficiency of the air flow entering the liquid inlet channel 13b, and is beneficial to achieving the balance between the air pressure in the additional storage cavity 20a and the external air pressure more quickly.

[0066] It can be that the liquid inlet channel 13b is communicated with the ventilation groove 13d, so that a part of the air flow needs to pass through the ventilation sub-channel 13c, the pores of the liquid storage member 12, and the ventilation groove 13d in sequence and then enter the liquid inlet channel 13b. The aerosol generation matrix entering the ventilation groove 13d from the liquid inlet channel 13b can be absorbed by the liquid storage member 12 and is difficult to enter the ventilation sub-channel 13c; it can be that the ventilation sub-channel 13c is communicated with the ventilation groove 13d, so that a part of the air flow needs to pass through the ventilation sub-channel 13c, the ventilation groove 13d, and the pores of the liquid storage member 12 in sequence and then enter the liquid inlet channel 13b. The aerosol generation matrix needs to enter the liquid storage member 12 first before it may enter the ventilation groove 13d, so it is difficult to enter the ventilation sub-channel 13c; it can also be that the ventilation groove 13d communicates the ventilation sub-channel 13c and the liquid inlet channel 13b, so that a part of the air flow needs to pass through the ventilation sub-channel 13c and the ventilation groove 13d in sequence and then enter the liquid inlet channel 13b. After the aerosol generation matrix enters the ventilation groove 13d, since the liquid storage member 12 is covered on the open part of the ventilation groove 13d, the aerosol generation matrix can also contact the liquid storage member 12 during the flow process in the ventilation groove 13d, and thus is absorbed and difficult to enter the ventilation sub-channel 13c.

[0067] It can be understood that in the embodiment where the mounting base 13 is manufactured by an injection molding process, the open direction of the ventilation groove 13d is the same as the demolding direction for forming the installation cavity 13a, so as to form the ventilation groove 13d synchronously to improve production efficiency.

[0068] The specific structural form of the ventilation sub-channel 13c is not limited. Refer to Figure 6 、 Figure 7 、 Figure 13 and Figure 14 , the ventilation sub-channel 13c can be a through hole provided on the installation cavity 13a to directly communicate with the outer contour surface of the mounting base 13; refer to Figure 8, some or all of the air exchange sub-channels 13c may be through grooves, and one side of the through groove along its extending direction is open on the outer contour surface of the mounting base 13 or communicated with other channels in the atomizer 10, and the open position of the through groove is communicated with the mounting cavity 13a.

[0069] In some embodiments, Figure 3 , Figure 8 , Figure 10 and Figure 15 , the connection position of the liquid inlet channel 13b and the mounting cavity 13a is on the same wall surface of the mounting cavity 13a as the air exchange groove 13d.

[0070] Wall surface, that is, among the inner walls that enclose and form the mounting cavity 13a, the surface of one of the inner walls.

[0071] In this way, it is beneficial to shorten the distance between the liquid inlet channel 13b and the air exchange groove 13d, thereby beneficial to shortening the length of the air flow path and beneficial to improving the air exchange efficiency.

[0072] In some embodiments, referring to Figures 4 to 6 , the connection position of the liquid inlet channel 13b and the mounting cavity 13a is separated from the air exchange groove 13d, and one end opening of the air exchange groove 13d along its extending direction is communicated with the air exchange sub-channel 13c.

[0073] The air flow can directly enter the air exchange groove 13d from the air exchange sub-channel 13c, which is beneficial to improving the efficiency of the air flow entering the air exchange groove 13d. Then, since the liquid inlet channel 13b and the air exchange groove 13d are arranged at intervals, the air flow in the air exchange groove 13d needs to pass through the pores in the liquid storage member 12 to enter the liquid inlet channel 13b; the aerosol generation matrix in the liquid inlet channel 13b needs to pass through the liquid storage member 12 to enter the air exchange groove 13d. Due to the absorption of the aerosol generation matrix by the liquid storage member 12, it is difficult for the aerosol generation matrix to enter the air exchange groove 13d and then leak out of the atomizer 10 through the air exchange sub-channel 13c.

[0074] The specific number of the air exchange sub-channels 13c is not limited, and can be one or multiple.

[0075] In some embodiments, referring to Figure 7 and Figure 8 , an atomization cavity 11a is provided in the atomization core 11, and the mounting base 13 further includes an air outlet channel 13e, and the air outlet channel 13e communicates the outside of the mounting base 13 with the atomization cavity 11a, and the air exchange sub-channel 13c is a through groove and is communicated with the air outlet channel 13e.

[0076] During the process when the user does not inhale the aerosol, the air outside the atomizer 10 can enter the air outlet channel 13e, and enter the air exchange groove 13d and the mounting cavity 13a through the air exchange sub-channel 13c, and enter the liquid inlet channel 13b through the pores.

[0077] By directly utilizing the air outlet channel 13e to connect the ventilation sub-channel 13c to the outside of the atomizer 10, it is beneficial to simplify the structure of the atomizer 10.

[0078] It can be understood that during the process of the user inhaling the aerosol, the aerosol generation matrix in the atomization core 11 will be quickly consumed. Therefore, it is necessary to replenish the aerosol generation matrix in the atomization core 11 more timely to reduce the adverse impact on the user experience due to untimely aerosol generation.

[0079] In some embodiments provided with the air outlet channel 13e, referring to Figure 7 and Figure 8 , the number of the ventilation sub-channels 13c is at least two. One ventilation sub-channel 13c connects the opening at one end of the ventilation groove 13d along its extending direction with the air outlet channel 13e, and the other ventilation sub-channel 13c connects the opening at the other end of the ventilation groove 13d along its extending direction with the outside of the atomization cavity 11a.

[0080] The aerosol formed by the atomization core 11 is located in the atomization cavity 11a and is discharged from the atomizer 10 through the air outlet channel 13e for the user to inhale.

[0081] The ventilation groove 13d is directly connected to the air outlet channel 13e and one ventilation sub-channel 13c, so that during the suction process of the user, a negative pressure can be directly formed in the ventilation groove 13d. Under the action of the negative pressure, the air flow can enter the other ventilation sub-channel 13c more quickly and enter the liquid storage member 12 through the open position of the ventilation groove 13d, and then enter the additional storage cavity 20a more quickly, so as to more quickly achieve the balance between the air pressure in the additional storage cavity 20a and the external air pressure, so that the aerosol generation matrix can enter the installation cavity 13a more quickly to supplement the consumption of the aerosol generation matrix in the atomization core 11, which is beneficial to improving the user experience.

[0082] In some embodiments, referring to Figures 10 to 15 , the opening at one end of the ventilation groove 13d along its extending direction is connected to the liquid inlet channel 13b, and the pore connects the ventilation groove 13d and the ventilation sub-channel 13c.

[0083] In this way, the direct connection between the liquid inlet channel 13b and the ventilation groove 13d is beneficial to improving the efficiency of supplementing the aerosol generation matrix into the liquid storage member 12; the non-direct connection between the ventilation groove 13d and the ventilation sub-channel 13c makes the aerosol generation matrix entering the ventilation groove 13d need to pass through the liquid storage member 12 to enter the ventilation sub-channel 13c, reducing the probability of leakage.

[0084] It can be understood that, referring to Figure 12 and Figure 13 , the ventilation groove 13d and the ventilation sub-channel 13c are arranged at intervals.

[0085] In some embodiments, the cross-section of the air exchange groove 13d perpendicular to its extending direction is rectangular, and the dimension of any side of the cross-section ranges from 0.3 mm (millimetre) to 0.6 mm.

[0086] That is to say, referring to Figure 6 and Figure 13 , 0.3 mm < L1 < 0.6 mm; referring to Figure 8 and Figure 15 , 0.3 mm < L2 < 0.6 mm.

[0087] In this way, the cross-sectional shape of the air exchange groove 13d is rectangular, which is beneficial to demolding during the injection molding process; within the dimension range of 0.3 mm to 0.6 mm, it is beneficial to make the air flow rate in the air exchange groove 13d meet the requirements, and it is convenient to more quickly achieve the balance between the air pressure in the additional storage cavity 20a and the external air pressure.

[0088] The specific value of the dimension of L1 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, etc.

[0089] The specific value of the dimension of L2 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, etc.

[0090] In some embodiments, referring to Figure 6 and Figure 13 , the area of the cross-section of the air exchange sub-channel 13c perpendicular to its extending direction is not less than the area of the cross-section of the air exchange groove 13d perpendicular to its extending direction.

[0091] It can be understood that the air flow flows from the air exchange sub-channel 13c to the air exchange groove 13d. Therefore, by making the cross-sectional area of the air exchange groove 13d larger than the cross-sectional area of the air exchange sub-channel 13c, it is beneficial to form a pressure difference between the two, which is beneficial to increasing the flow rate of the air flow and facilitating the more rapid achievement of the balance between the air pressure in the additional storage cavity 20a and the external air pressure.

[0092] The specific number of the air outlet channels 13e is not limited, and can be one or multiple.

[0093] The specific number of the liquid inlet channels 13b is not limited, and can be one or multiple.

[0094] In some embodiments, the numbers of the air exchange sub-channel 13c, the air outlet channel 13e, and the liquid inlet channel 13b are the same and are arranged in one-to-one correspondence.

[0095] It can be understood that there is a risk that foreign objects are carried by the air flow outside the atomizer 10 and block the air exchange sub-channel 13c.

[0096] In some embodiments, see Figure 15 The atomizing core 11 is provided with an atomizing chamber 11a, the mounting base 13 is further provided with an air outlet channel 13e, the air outlet channel 13e connects the outside of the mounting base 13 with the atomizing chamber 11a, and the number of the ventilation sub-channels 13c is two, and the two ventilation sub-channels 13c are located on opposite sides of the air outlet channel 13e. In other words, it is beneficial to increase the distance between the two ventilation sub-channels 13c as much as possible.

[0097] There are two ventilation sub-channels 13c, which reduces the risk of blockage in any ventilation sub-channel 13c and the inability to replenish air into the additional storage chamber 20a, thereby improving redundancy; the two ventilation sub-channels 13c are far away from each other, which reduces the risk of blockage in both ventilation sub-channels 13c.

[0098] In some implementations, there are two liquid inlet channels 13b, which are located on opposite sides of the gas outlet channel 13e. The relative direction between the two liquid inlet channels 13b is perpendicular to the relative direction between the two ventilation sub-channels 13c, which is beneficial to extend the distance between the liquid inlet channel 13b and the ventilation sub-channel 13c and reduce the probability of leakage of the aerosol-generating matrix from the ventilation sub-channel 13c.

[0099] In some embodiments, see Figure 2 and Figure 3 , a portion of the liquid storage member 12 extends into the liquid inlet channel 13b. This is beneficial to increasing the volume of the liquid storage member 12, and to extending the length of the flow path of the aerosol generating matrix flowing through the pores to the atomizing core 11, thereby reducing the probability that the atomizing core 11 is soaked in the aerosol generating matrix and affects the user's smoking taste.

[0100] In some embodiments, see Figure 11 and Figure 16 The atomizer 10 further includes a cover plate 14, which is disposed on the outer surface of the mounting seat 13. The outer surface of the mounting seat 13 is provided with a guide groove 13f, one side of the guide groove 13f is completely open to communicate with the outside of the atomizer 10, and the guide groove 13f includes a first portion 13g and a second portion 13h, the first portion 13g communicates with the ventilation sub-channel 13c and the second portion 13h, and the cover plate 14 covers the communication port between the ventilation sub-channel 13c and the outside of the atomizer 10 and the open position of the first portion 13g.

[0101] The cover plate 14 blocks the opening connecting the ventilation sub-channel 13c and the outside of the atomizer 10, so that the aerosol-generating matrix that penetrates into the ventilation sub-channel 13c is blocked by the cover plate 14 and flows into the guide groove 13f; the air outside the atomizer 10 can enter the guide groove 13f through the opening of the second part 13h, and then enter the ventilation sub-channel 13c.

[0102] In this way, by blocking the cover plate 14, the probability of foreign matter directly entering the ventilation sub-channel 13c and causing blockage is reduced; by setting the guide groove 13f and the cover plate 14, the flow path of the aerosol generating matrix leaked from the ventilation sub-channel 13c is extended, and the probability of the aerosol generating matrix directly leaking to the outside of the atomizer 10 is reduced; the guide groove 13f is openly set, which is also convenient for demolding through the injection molding process, which is convenient for production and manufacturing.

[0103] It is understandable that the cover plate 14 and the mounting base 13 are detachably connected, so that after the cover plate 14 is removed, the aerosol generating matrix and foreign matter in the guide groove 13f can be directly cleaned from the open position of the guide groove 13f, thereby extending the service life of the atomizer 10.

[0104] The specific material of the cover plate 14 is not limited, for example, silicone, which can be used to facilitate sealing by utilizing the elasticity of silicone, thereby reducing the risk of leakage of the aerosol generating matrix from the joint between the cover plate 14 and the mounting seat 13 .

[0105] In some embodiments, see Figure 11 , at least part of the first portion 13g is bent and extended. In this way, on the one hand, it is helpful to extend the length of the first portion 13g in a limited space, thereby extending the length of the flow path of the aerosol generating substrate; the first portion 13g is bent and extended, which is conducive to forming a labyrinth seal, thereby further reducing the risk of leakage of the aerosol generating substrate.

[0106] In some embodiments, see Figure 5 and Figure 12 The mounting seat 13 includes a body 132 and a cover member 133. The body 132 is provided with an installation space, and the installation space is open on one side along the first direction. The cover member 133 is covered at the opening of the installation space along the first direction so that the installation space forms an installation cavity 13a.

[0107] It can be understood that the liquid inlet channel 13b, the air outlet channel 13e, and the ventilation groove 13d are all located on the inner wall on the side away from the opening of the installation space along the first direction, so that the liquid inlet channel 13b, the air outlet channel 13e and the ventilation groove 13d can be formed during the process of demolding along the first direction during the injection molding process.

[0108] In some embodiments with an outlet passage 13e, see Figure 3 and Figure 10The atomizer 10 further includes a support member 15, in which a second flow hole 15a is provided, and the support member 15 is arranged in the mounting cavity 13a. The second flow hole 15a communicates with the atomizing cavity 11a and the air outlet channel 13e. The support member 15 and the atomizing core 11 are in contact with each other along the first direction, and the two are in contact with one of the inner walls on both sides of the mounting cavity 13a along the first direction respectively, so as to achieve the function of fixing the atomizing core 11 in the mounting cavity 13a.

[0109] In some embodiments, the liquid storage member 12 is coated on the support member 15 and the side of the atomizer core 11 perpendicular to the first direction and away from the atomizer chamber 11a, so that the liquid storage member 12 can better contact the atomizer core 11 and improve the efficiency of providing the aerosol generating matrix to the atomizer core 11.

[0110] The present invention also provides an aerosol generating device. Figure 1 , Figure 2 and Figure 9 The aerosol generating device comprises a storage element 20 and the atomizer 10 in any of the aforementioned embodiments. The storage element 20 is provided with an additional storage chamber 20a, the additional storage chamber 20a is communicated with the liquid inlet channel 13b, and the ventilation channel is communicated with the outside of the aerosol generating device.

[0111] The aerosol generating device in the utility model can replenish the aerosol generating matrix stored in the storage unit 20 into the atomizer 10, and the air outside the aerosol generating device can enter the atomizer 10 through the ventilation channel, and then enter the storage unit 20, so as to achieve the balance of the additional storage chamber 20a with the external air pressure, so as to facilitate the aerosol generating matrix to flow between the storage unit 20 and the atomizer 10.

[0112] It is understandable that the storage element 20 is detachably configured so that a new storage element 20 can be replaced after the aerosol generating substrate in the additional storage chamber 20a is exhausted, thereby extending the service life of other parts of the aerosol generating device.

[0113] The specific manner in which the storage element 20 is detachably configured is not limited. In some embodiments, the atomizer 10 and the storage element 20 are detachably connected. In other embodiments, the atomizer 10 and the storage element 20 are detachably connected. Figure 2 and Figure 9 The aerosol generating device further comprises a shell 40, in which a receiving chamber is provided, at least a portion of the atomizer 10 is located in the receiving chamber, a portion of the storage element 20 is located in the receiving chamber to communicate with the atomizer 10, and at least one of the atomizer 10 and the shell 40 is detachably connected to the storage element 20.

[0114] The specific method of the detachable connection is not limited, such as threaded connection, elastic snap connection, etc.

[0115] The specific manner in which the ventilation channel is connected to the outside is not limited. In an embodiment with a shell 40, the shell 40 may be provided with a ventilation through hole, and the ventilation through hole is connected to the ventilation channel; or the atomizer 10 may be provided with an air inlet channel, a portion of the atomizer 10 is located outside the shell 40, the entrance of the air inlet channel is located at the portion of the atomizer 10 outside the shell 40, and the air inlet channel is connected to the atomization chamber 11a and the ventilation channel.

[0116] In some embodiments, the aerosol generating device further includes a power supply assembly. The atomizer 10 is provided with an installation compartment. The power supply assembly is disposed in the installation compartment and is electrically connected to the atomizing core 11 to provide the atomizing core 11 with energy required to convert the aerosol generating matrix into an aerosol.

[0117] In some embodiments, a suction channel 20b is provided in the storage unit 20, and the suction channel 20b is connected to the atomization chamber 11a in the atomization core 11. During the user's inhalation process, the suction channel 20b is connected to the user's mouth so that the aerosol in the atomization chamber 11a enters the user's mouth.

[0118] It is understandable that after the user completes the puffing, the aerosol remaining in the puffing channel 20b will condense to form residual liquid, and the residual liquid will clog the puffing channel 20b, which will have an adverse effect on the user's next puffing experience.

[0119] In some embodiments where the suction channel 20b is provided, the ventilation channel is communicated with the suction channel 20b via the air outlet channel 13e, so as to achieve the purpose of communicating the ventilation channel with the outside of the aerosol generating device.

[0120] In some embodiments with suction channel 20b, see Figure 2 , Figure 3 , Figure 9 , Figure 10 , Figure 17 and Figure 18 The aerosol generating device further comprises a liquid absorbing member 30, which is located between the storage member 20 and the atomizer 10, and is provided with a first flow hole 30a therethrough. The mounting seat 13 is further provided with an air outlet channel 13e, and the air outlet channel 13e is connected to the atomizing chamber 11a in the atomizing core 11, and the first flow hole 30a is connected to the suction channel 20b and the air outlet channel 13e.

[0121] In the process of the residual liquid formed by the aerosol flowing along the inner wall of the suction channel 20b to the air outlet channel 13e, it needs to pass through the inner wall of the first flow hole 30a and then be absorbed by the liquid absorbing member 30. In this way, the probability of the residual liquid re-entering the atomizing chamber 11a is reduced, and the risk of the aerosol flavor changing due to the deterioration of the residual liquid and the foreign matter contained therein is reduced, which is conducive to improving the user experience.

[0122] The specific form of the liquid absorption member 30 is not limited, for example, a fiber structure formed by knitting and twisting chemical fibers such as cotton wool, sponge, polyester, and nylon.

[0123] It can be understood that the liquid absorption member 30 can also be used to absorb the aerosol generating matrix leaking from the communication position between the additional storage cavity 20a and the liquid outlet channel.

[0124] Refer to Figure 2 and Figure 9 , the storage member 20 and the atomizer 10 are arranged along the first direction, the liquid absorption member 30 is clamped between the storage member 20 and the atomizer 10 along the first direction, the first flow hole 30a, the suction channel 20b and the air outlet channel 13e extend along the first direction, so that the aerosol can directly enter the user's mouth along the first direction, reducing the suction resistance.

[0125] In some embodiments provided with the support member 15, refer to Figure 3 , Figure 10 , Figure 17 and Figure 18 , a guide member 131 is provided on the inner wall of the air outlet channel 13e, the guide member 131 extends along the relative direction of the storage member 20 and the atomizer 10, one end of the guide member 131 extends into the suction channel 20b, the lipophilicity of at least part of the material of the inner wall of the second flow hole 15a is greater than that of the material of the mounting base 13, and a liquid flow path is formed between the guide member 131 and the inner wall of the second flow hole 15a.

[0126] One end of the guide member 131 extends into the suction channel 20b, so that when the residual liquid formed by the aerosol flows along the inner wall of the suction channel 20b to the air outlet channel 13e, after the residual liquid contacts the guide member 131, it can flow to the other end of the guide member 131 away from the suction channel 20b under the guidance of the guide member 131. The residual liquid can flow from the other end of the guide member 131 away from the suction channel 20b to the inner wall of the second flow hole 15a through the liquid flow path.

[0127] In this way, under the guiding action of the guide member 131, part of the residual liquid can be absorbed by the support member 15, so that even when the liquid absorbed in the liquid absorption member 30 is in a saturated state, the probability of the residual liquid re-entering the atomization chamber 11a can still be reduced.

[0128] The specific way of forming the liquid diversion path is not limited.

[0129] For example, refer to Figure 10 , the other end of the guide member 131 extends into the second flow hole 15a, the atomizer 10 further includes a positioning member 16, and at least part of the positioning member 16 is clamped between the guide member 131 and the inner wall of the second flow hole 15a.

[0130] In this way, the positioning member 16 can position the flow guiding member 131 and the supporting member 15. At the same time, a liquid flow guiding path is formed on a part of the surface of the positioning member 16 so that the residual liquid flows to the inner wall of the second flow through hole 15a along the surface of the positioning member 16.

[0131] For another example, refer to Figure 3 , the edge of the second flow through hole 15a abuts against the inner wall of the installation cavity 13a, and the other end of the flow guiding member 131 extends to the edge of the communication port between the air outlet channel 13e and the second flow through hole 15a.

[0132] That is to say, a part of the inner wall of the installation cavity 13a forms a liquid flow guiding path so that the residual liquid flows to the inner wall of the second flow through hole 15a along the inner wall of the installation cavity 13a, which is beneficial to simplifying the structure of the liquid flow guiding path.

[0133] Refer to Figure 2 , Figure 3 , Figure 9 and Figure 10 , the flow guiding member 131 extends along the first direction.

[0134] The specific number of the flow guiding members 131 is not limited, and can be one or more. For example, refer to 3, Figure 10 and Figure 18 , the number of the flow guiding members 131 is two, and the two flow guiding members 131 are arranged opposite to each other perpendicular to the first direction to improve the flow guiding effect on the residual liquid.

[0135] In some embodiments, a flow guiding inclined surface 131a is provided at one end of the flow guiding member 131 close to the supporting member 15. Along the direction close to the atomization cavity 11a, the flow guiding inclined surface 131a extends obliquely towards the direction close to the inner wall of the second flow through hole 15a so as to guide the residual liquid to flow towards the inner wall of the second flow through hole 15a.

[0136] The various embodiments / implementations of the present utility model can be combined with each other without contradiction.

[0137] The above is only the preferred technical solution in the embodiments of the present utility model and is not used to limit the protection scope of the embodiments of the present utility model. For those skilled in the art, the embodiments of the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model shall be included in the protection scope of the embodiments of the present utility model.

Claims

1. A nebulizer for an aerosol generating device, wherein the aerosol generating device is provided with an additional storage chamber, characterized in that: The atomizer comprises: Atomizer core; A liquid storage member, provided with pores to absorb the aerosol-generating matrix by capillary action, the liquid storage member being in fluid communication with the atomizing core; The mounting seat includes a mounting cavity, a liquid inlet channel and a ventilation channel. The liquid storage component is arranged in the mounting cavity. The liquid inlet channel connects the mounting cavity with the additional storage cavity. The ventilation channel connects the mounting cavity with the outside of the atomizer. The pore forms at least a part of the ventilation channel.

2. The atomizer according to claim 1, characterized in that The inner wall of the mounting cavity is provided with a ventilation groove and a ventilation sub-channel, the ventilation groove is completely open along a side perpendicular to the extension direction thereof and close to the mounting cavity, the liquid storage cover is arranged at the opening of the ventilation groove, the ventilation sub-channel connects the mounting cavity and the outside of the atomizer, and at least one of the liquid inlet channel and the ventilation sub-channel is connected to the ventilation groove.

3. The atomizer according to claim 2, characterized in that The communicating position between the liquid inlet channel and the installation cavity is located on the same wall surface of the installation cavity as the ventilation groove.

4. The atomizer according to claim 2, characterized in that The communicating position between the liquid inlet channel and the mounting cavity is separated from the ventilation groove, and the opening of at least one end of the ventilation groove along the extending direction thereof is communicated with the ventilation sub-channel.

5. The atomizer according to claim 4, characterized in that An atomizing chamber is provided in the atomizing core, and the mounting seat also includes an air outlet channel, which connects the outside of the mounting seat with the atomizing chamber. The number of the ventilation sub-channels is at least two, one of the ventilation sub-channels connects the opening at one end of the ventilation groove along its extension direction and the air outlet channel, and the other ventilation sub-channel connects the opening at the other end of the ventilation groove along its extension direction and the outside of the atomizing chamber.

6. The atomizer according to claim 2, characterized in that An opening at one end of the ventilation groove along its extension direction is communicated with the liquid inlet channel, and the pores are connected with the ventilation groove and the ventilation sub-channel.

7. The atomizer according to claim 2, characterized in that The cross section of the ventilation groove perpendicular to its extension direction is rectangular, and the size of any side of the cross section ranges from 0.3 mm to 0.6 mm.

8. The atomizer according to claim 2, characterized in that The area of ​​the cross section of the ventilation sub-channel perpendicular to its extension direction is not less than the area of ​​the cross section of the ventilation groove perpendicular to its extension direction.

9. The atomizer according to claim 1, characterized in that A portion of the liquid storage member extends into the liquid inlet channel.

10. An aerosol generating device, characterized in that: The aerosol generating device comprises a storage element and the atomizer according to any one of claims 1 to 9, wherein an additional storage chamber is provided in the storage element, the additional storage chamber is communicated with the liquid inlet channel, and the ventilation channel is communicated with the outside of the aerosol generating device.

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