Atomizer and aerosol generating device

Abstract

The embodiment of the utility model provides an atomizer and an aerosol generating device.The atomizer comprises an atomizing core, a mounting assembly and a liquid storage part, the mounting assembly is provided with a mounting cavity, an exchange cavity, an exchange channel and a plurality of exchange holes, the atomizing core is located in the mounting cavity, a first space is defined by the atomizing core and the inner wall of the mounting cavity, and the exchange holes communicate with the first space and the exchange cavity; the exchange channel is communicated with the exchange cavity and the outside of the atomizer, inlets of at least part of the exchange holes and outlets of the exchange channel are staggered, and the liquid storage part is arranged in the first space and is in fluid connection with the atomizing core. According to the atomizer in the embodiment, the area where the liquid storage part can make contact with the aerosol generating matrix entering the first space is enlarged, and the liquid storage part can absorb the aerosol generating matrix more evenly; through the exchange holes, the amount of the aerosol generating matrix flowing into the first space can be limited; one part of the plurality of exchange holes can be used for the passage of the aerosol generating substrate, and the other part of the plurality of exchange holes can be used for the passage of gas.

Description

TECHNICAL FIELD

[0001] The utility model discloses an atomizer aerosol generating device. BACKGROUND

[0002] The aerosol generating device is used for generating aerosol from an aerosol generating substrate for a user to puff.

[0003] The aerosol generating device includes an atomizer and an additional tank. The atomizer is in communication with the additional tank so that the aerosol generating substrate in the additional tank can flow into the atomizer. The atomizer includes an atomizing core and a liquid storage member. The liquid storage member wraps at least part of the atomizing core. The aerosol generating substrate flowing into the atomizer can be absorbed by the liquid storage member and then released to the atomizing core, so as to regulate the speed of the aerosol generating substrate flowing to the atomizing core.

[0004] In the related art, the atomizer is provided with an exchange channel. The exchange channel is used for communication with the additional tank. The aerosol generating substrate in the additional tank contacts the liquid storage member through the exchange channel. Since the position of the exchange channel in communication with the additional tank is fixed relative to the liquid storage member, the aerosol generating substrate flowing out of the exchange channel is mainly absorbed by only part of the area of the liquid storage member, which can easily cause uneven liquid supply of the liquid storage member to the atomizing core. SUMMARY

[0005] Therefore, the embodiments of the present application aim to provide an atomizer and an aerosol generating device that facilitate the liquid storage member to more uniformly deliver the absorbed aerosol generating substrate to different parts of the atomizing core.

[0006] To achieve the above object, the technical scheme of the embodiments of the present application is as follows:

[0007] The embodiments of the present application provide an atomizer, which includes:

[0008] an atomizing core;

[0009] a mounting assembly provided with a mounting cavity, an exchange cavity, an exchange channel and a plurality of exchange holes. The atomizing core is located in the mounting cavity and cooperates with the inner wall of the mounting cavity to form a first space. The exchange holes are in communication with the first space and the exchange cavity. The exchange channel is in communication with the exchange cavity and the outside of the atomizer. The inlet of at least part of the exchange holes is staggered with the outlet of the exchange channel.

[0010] a liquid storage member arranged in the first space and in fluid connection with the atomizing core.

[0011] In some embodiments, the atomizing core is provided with an atomizing cavity extending along a first direction. At least part of the exchange holes are arranged on the outside of the atomizing cavity and the axis direction of the surrounding arrangement is along the first direction.

[0012] And / or, at least part of the exchange holes are waist-shaped holes and the long axis direction of the waist-shaped holes is the first direction.

[0013] In some embodiments, the diameter of the inscribed circle of the cross section of the exchange hole at any position along the extension direction of the exchange hole is a first diameter, and the size of the first diameter ranges from 2.5 mm to 5 mm.

[0014] In some embodiments, the inner wall of the exchange cavity near the top of the atomizer along the first direction is a first wall, and the inner wall of at least part of the exchange holes near the top of the atomizer along the first direction is a second wall, the first wall is spaced apart from the second wall along the first direction and located on the side of the second wall near the top of the atomizer along the first direction.

[0015] In some embodiments, the distance between the first wall and the second wall along the first direction is not less than 2 mm.

[0016] In some embodiments, the opening through which the exchange hole communicates with the exchange cavity is a first port, and the distance between the inner walls on both sides of the first port along the direction of the first port is not less than 0.5 mm.

[0017] And / or, the opening through which the exchange hole communicates with the first space is a second port, and the liquid storage member blocks the second port.

[0018] In some embodiments, the exchange channel includes a first channel and a second channel, the opening through which the first channel communicates with the exchange cavity is located on the side of the exchange cavity near the top of the atomizer along the first direction, the opening through which the second channel communicates with the exchange cavity is located on the side of the exchange cavity away from the top of the atomizer along the first direction, and the diameter of the inscribed circle of the cross section of the first channel at any position along the extension direction of the first channel is a second diameter, and the size of the second diameter is not less than 2.5 mm.

[0019] And / or, the diameter of the inscribed circle of the cross section of the second channel at any position along the extension direction of the second channel is a third diameter, and the size of the third diameter is not less than 1.5 mm.

[0020] In some embodiments, the atomization core is provided with an atomization cavity extending along a first direction, the exchange channel is a waist-shaped hole, and the long axis direction of the exchange channel is the first direction, and the diameter of the circular arc portion of the exchange channel is not less than 2.5 mm.

[0021] In some embodiments, the installation assembly comprises a housing, a sealing seat and a partition, the housing is provided with a containing cavity and the exchange channel, the exchange channel is located on one side of the containing cavity along a second direction and communicates the containing cavity with the outside of the atomizer, the sealing seat is arranged in the containing cavity, the sealing seat is provided with a first cavity, the first cavity is open on one side along the second direction towards the exchange channel, the housing covers the open side of the first cavity, the first cavity communicates with the exchange channel, the partition is provided with the exchange hole, and the partition is arranged in the first cavity and separates the first cavity into the installation cavity and the exchange cavity.

[0022] The application further provides an aerosol generating device comprising an additional oil tank and the atomizer of any one of the foregoing embodiments, the additional oil tank is arranged on one side of the atomizer along a second direction, the additional oil tank is provided with an additional storage cavity, the additional storage cavity comprises a storage sub-cavity and a confluence sub-cavity, the confluence sub-cavity is open on one side along a first direction to form an opening and communicates with the storage sub-cavity, the storage sub-cavity is a confluence wall on one side away from the top of the atomizer along the first direction, the opening is located at one end of the confluence wall close to the atomizer along the second direction, the first direction intersects the second direction, the confluence sub-cavity is open on one side along the second direction to communicate with the exchange channel, and one end of the confluence wall close to the exchange channel along the second direction is farther away from the top of the atomizer than the other end along the first direction.

[0023] And / or, the confluence wall comprises two sub-walls connected to each other, the two sub-walls are arranged along a third direction, the first direction, the second direction and the third direction intersect each other, one end of the sub-wall away from the other sub-wall along the third direction is closer to the top of the atomizer along the first direction than the other end, and part of the opening is located on one sub-wall and the other part is located on the other sub-wall.

[0024] The atomizer in the application, by arranging the exchange cavity and the exchange hole, the aerosol generating substrate flows out of the exchange channel and enters the exchange cavity, the aerosol generating substrate in the exchange cavity can contact different regions of the liquid storage member through multiple exchange holes, which is conducive to increasing the number of regions of the liquid storage member contacting the aerosol generating substrate under the condition that the size, number and position of the exchange channel are determined, and is conducive to the liquid storage member absorbing the aerosol generating substrate more uniformly, so that the atomizing core can absorb the aerosol generating substrate more uniformly, and the risk of dry burning of the atomizing core is reduced. In the multiple exchange holes, part of them can be used for the passage of the aerosol generating substrate, and the other part can be used for the passage of the gas, which reduces the risk of conflict caused by the simultaneous passage of the gas and the aerosol generating substrate in a single exchange hole. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the nebulizer in the first embodiment of the present application in a first perspective view;

[0026] Figure 2 is a schematic view of the nebulizer in the first embodiment of the present application in a second perspective view; Figure 1

[0027] Figure 3 Figure 2

[0028] Figure 4 Figure 3

[0029] Figure 5 Figure 3

[0030] Figure 6 Figure 1

[0031] Figure 7 Figure 6

[0032] Figure 8 is a schematic view of the partition in an embodiment of the present application;

[0033] Figure 9 is a schematic view of the nebulizer in the second embodiment of the present application;

[0034] Figure 10 is a schematic view of the aerosol-generating device in the third embodiment of the present application;

[0035] Figure 11 is a schematic view of the nebulizer in the third embodiment of the present application in another perspective view; Figure 10

[0036] Figure 12 Figure 11

[0037] Figure 13 is a schematic view of the aerosol-generating device in the fourth embodiment of the present application, which is cut at the same position as the E-E position in Figure 11

[0038] Figure 14

[0039] Figure 15 is a schematic view of the additional oil reservoir in the fifth embodiment of the present application; Figure 14 ​​​​​​​​​​​​​​​​​

[0040] Figure 16 Schematic view of the additional oil tank in the sixth embodiment of the application;

[0041] Figure 17 Schematic view of the additional oil tank in the sixth embodiment of the application; Figure 16 Schematic view of the additional oil tank in the sixth embodiment of the application;

[0042] Figure 18 Schematic view of the additional oil tank in the sixth embodiment of the application; Figure 16 Schematic view of the additional oil tank in the sixth embodiment of the application.

[0043] BRIEF DESCRIPTION OF DRAWINGS

[0044] 10, atomizer; 11, atomizing core; 11a, atomizing cavity; 12, mounting assembly; 12a, mounting cavity; 12b, exchange cavity; 12c, exchange channel; 12d, exchange hole; 12e, first space; 12f, air outlet channel; 12g, first wall; 12h, second wall; 12i, first channel; 12j, second channel; 121, housing; 121a, containing cavity; 122, sealing seat; 1221, mounting seat; 122a, first cavity; 123, partition; 123a, second cavity; 13, liquid storage member; 20, additional oil tank; 21, housing assembly; 21a, additional storage cavity; 21b, insertion hole; 21c, stop face; 21d, storage sub-cavity; 21e, confluence sub-cavity; 21f, confluence wall; 21g, open end; 21h, sub-wall; 211, stop block; 211a, stop hole; 22, sealing member; 221, blocking part; 221a, assembly hole; 221b, mounting groove; 2211, positioning protrusion; 222, elastic reset part. DETAILED DESCRIPTION

[0045] It should be noted that the embodiments and technical features in the embodiments can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation of the purpose of the application, and should not be regarded as an improper limitation on the application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising" and "having," and any variations thereof, as used herein are intended to cover not exclusively including.

[0047] In the description of the embodiments of the present application, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0048] Reference herein to "embodiments" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The occurrence of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0049] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are "or" relationship.

[0050] In the description of the embodiments of the present application, for the convenience of description, Figure 3 , Figure 6 , Figure 8 , Figure 12 , Figure 13 , Figure 15 , Figure 17 and Figure 18 as shown, the direction of the arrow X is the "first direction" and the straight line direction of the "vertical direction"; as shown in Figure 3 , Figure 12 , Figure 13 , Figure 14 , Figure 16 as shown, the direction of the arrow Y is the "second direction" and the straight line direction; as shown in Figure 14 , Figure 16 and Figure 18 , the direction of the arrow Z is the "third direction" and the straight line direction.

[0051] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical term "contact" should be interpreted in a broad sense, which can be direct contact or contact through an intermediate medium layer, and can be contact between two objects in contact with each other without interaction force or contact between two objects in contact with each other with interaction force.

[0053] The present application provides an atomizer 10. Referring to Figures 1 to 8 The atomizer 10 is part of an aerosol generating device for converting an aerosol generating substrate into an aerosol by heating or the like for a user to smoke. The aerosol generating device further comprises an additional tank 20 which can communicate with the atomizer 10 to provide the atomizer 10 with the aerosol generating substrate.

[0054] The atomizer 10 comprises an atomizing core 11, a mounting assembly 12 and a liquid storage 13.

[0055] The mounting assembly 12 is provided with a mounting cavity 12a, an exchange cavity 12b, an exchange channel 12c and a plurality of exchange holes 12d. The atomizing core 11 is located in the mounting cavity 12a and cooperates with the inner wall of the mounting cavity 12a to form a first space 12e. The exchange holes 12d communicate the first space 12e and the exchange cavity 12b. The exchange channel 12c communicates the exchange cavity 12b and the outside of the atomizer 10. The entrance of at least part of the exchange holes 12d is staggered with the outlet of the exchange channel 12c. The liquid storage 13 is arranged in the first space 12e and is in fluid connection with the atomizing core 11.

[0056] The atomizing core 11 can convert the aerosol generating substrate into an aerosol by heating or the like after contacting with the aerosol generating substrate.

[0057] The mounting cavity 12a is used to accommodate at least part of the atomizing core 11. The inner wall of the mounting cavity 12a plays a positioning role for the atomizing core 11. Part of the space of the mounting cavity 12a is used to form the first space 12e.

[0058] The exchange channel 12c communicates the outside of the atomizer 10, so that the aerosol generating substrate of the additional tank 20 can enter the atomizer 10, and at the same time, the air in the atomizer 10 can also be transported to the additional tank 20 through the exchange channel 12c.

[0059] A fluid channel comprising the exchange channel 12c, the exchange cavity 12b, the exchange holes 12d and the first space 12e is formed in the atomizer 10. Gases and liquids can enter the first space 12e from the outside of the atomizer 10 through the fluid channel, and can also be discharged from the first space 12e to the outside of the atomizer 10.

[0060] The liquid storage 13 is provided with pores to be able to absorb the aerosol generating substrate by capillary action.

[0061] The fluid communication between the liquid storage member 13 and the atomization core 11 means that the fluid can flow from one to the other. The specific way to achieve the fluid communication between the two is not limited, for example, the two are in direct contact, and for example, a channel is provided between the two to enable the fluid to pass through the channel to contact the two.

[0062] After the liquid storage member 13 contacts the aerosol generating substrate, the aerosol generating substrate can be absorbed by the liquid storage member 13 and stored in the space inside the pores by capillary action. At least part of the pores are in communication with each other, so that the aerosol generating substrate can be transported through the liquid storage member 13 to the atomization core 11 in fluid communication with the liquid storage member 13. In this way, after the aerosol generating substrate on the atomization core 11 is consumed to a certain extent, the atomization core 11 can be supplemented with aerosol generating substrate through the liquid storage member 13, thereby reducing the probability of the atomization core 11 being directly soaked in the aerosol generating substrate. At the same time, due to the existence of the pores, the airflow can also pass through the liquid storage member 13 through the pores in communication with each other. That is, the pores in the liquid storage member 13 are in communication with each other to form a channel that allows airflow to pass through and allows the aerosol generating substrate to flow through.

[0063] It can be understood that after the aerosol generating substrate flows out of the exchange hole 12d into the first space 12e, at least part of the aerosol generating substrate can be absorbed by the liquid storage member 13.

[0064] The fluid connection between the atomization core 11 and the liquid storage member 13 means that the aerosol generating substrate in the liquid storage member 13 can flow from the liquid storage member 13 to the atomization core 11.

[0065] The atomizer 10 is also provided with an air exchange channel that communicates the first space 12e and the outside of the atomizer 10. As the aerosol generating substrate in the atomizer 10 and the additional tank 20 is consumed, a negative pressure will be formed in the atomizer 10 and the additional tank 20, so that the air outside the atomizer 10 can enter the atomizer 10 and the additional tank 20, reducing the adverse effects of the negative pressure on the aerosol generating substrate entering the atomizer 10 from the additional tank 20.

[0066] It can be understood that in the atomizer 10, the flow path of the liquid flow formed by the aerosol generating substrate is the exchange channel 12c→the exchange cavity 12b→the exchange hole 12d→the first space 12e; the airflow flow path of the air exchange channel is the first space 12e→the exchange hole 12d→the exchange cavity 12b→the exchange channel 12c. That is, the flow direction of the aerosol generating substrate is opposite to the flow direction of the airflow.

[0067] It can be understood that, if the exchange channel 12c directly communicates with the first space 12e, after the aerosol generating substrate enters the first space 12e, the liquid storage member 13 mainly absorbs the aerosol generating substrate in the region close to the opening of the exchange channel 12c and the first space 12e, and transports the aerosol generating substrate to the atomizing core 11 by capillary action, so that the region far from the opening of the exchange channel 12c and the first space 12e is difficult to absorb the aerosol generating substrate, and it is easy to make some regions of the liquid storage member 13 difficult to play the role of absorbing and transporting the aerosol generating substrate.

[0068] The inlet of at least part of the exchange holes 12d is staggered with the outlet of the exchange channel 12c, so that after the aerosol generating substrate flows from the exchange channel 12c into the exchange cavity 12b, at least part of the aerosol generating substrate needs to change the flow direction in the exchange cavity 12b to enter the exchange hole 12d. In this way, under the condition that the size, number and position of the exchange channel 12c are determined, the aerosol generating substrate in the exchange cavity 12b can enter different regions in the first space 12e through the exchange holes 12d staggered with the exchange channel 12c and be absorbed by different regions of the liquid storage member 13, thereby facilitating more uniform absorption of the aerosol generating substrate by each region of the liquid storage member 13 and improving the utilization rate of the liquid storage member 13.

[0069] The atomizer 10 in the embodiments of the present application, by arranging the exchange cavity 12b and the exchange hole 12d, the aerosol generating substrate flows out of the exchange channel 12c and enters the exchange cavity 12b, the aerosol generating substrate in the exchange cavity 12b can contact different regions of the liquid storage member 13 through multiple exchange holes 12d, which is conducive to increasing the number of regions of the liquid storage member 13 contacting the aerosol generating substrate under the condition that the size, number and position of the exchange channel 12c are determined, and facilitating the liquid storage member 13 to absorb the aerosol generating substrate more uniformly, so that the atomizing core 11 can absorb the aerosol generating substrate more uniformly, thereby reducing the risk of dry burning of the atomizing core 11 and other problems. In the multiple exchange holes 12d, part of them can be used for the passage of the aerosol generating substrate, and the other part can be used for the passage of the gas, thereby reducing the risk of conflict caused by the simultaneous passage of the gas and the aerosol generating substrate in a single exchange hole 12d. The specific mode of fluid connection between the atomizing core 11 and the liquid storage member 13 is not limited, for example, the atomizing core 11 is attached to the liquid storage member 13.

[0070] The specific number of the exchange holes 12d is not limited. In some embodiments, the number of the exchange holes 12d is 3 or more. This is conducive to improving the efficiency of the passage of the gas and the aerosol generating substrate.

[0071] It can be understood that, referring to Figure 7In a projection plane perpendicular to the projection direction of the outlet of the exchange channel 12c, the projection of the inlet of the partial exchange hole 12d is located outside the projection range of the outlet of the exchange channel 12c, so as to stagger the inlet of the partial exchange hole 12d and the outlet of the exchange channel 12c.

[0072] In some embodiments, referring to Figure 7 , the inlet of the partial exchange hole 12d is oriented towards the outlet of the exchange channel 12c. In this way, it is beneficial to improve the efficiency of the aerosol generating substrate in the exchange cavity 12b entering into the first space 12e, and to improve the speed of supplementing the aerosol generating substrate to the atomization core 11.

[0073] In some embodiments, referring to Figure 3 , the atomization core 11 is provided with an atomization cavity 11a, which is isolated from the first space 12e and communicates with the air outlet channel 12f in the atomizer 10, so that the aerosol in the atomization cavity 11a can be discharged from the atomizer 10 for the user to smoke. In other embodiments, part of the surface of the atomization core 11 forms part of the inner wall of the first space 12e for absorbing the aerosol generating substrate, and another part of the surface forms part of the surface of the air outlet channel 12f, so that the aerosol can be discharged from the atomizer 10.

[0074] In some embodiments provided with the atomization cavity 11a, referring to Figure 3 and Figure 7 , the atomization cavity 11a extends along the first direction, and the liquid storage member 13 is wrapped around the side of the atomization core 11 perpendicular to the first direction. In this way, the liquid storage member 13 reduces the obstruction to the gas inlet and outlet of the atomization cavity 11a.

[0075] In some embodiments, referring to Figure 7 , at least part of the exchange holes 12d are arranged on the outer side of the atomization cavity 11a and the axis direction of the circumferential arrangement is along the first direction. In this way, it is further beneficial to enable more areas of the liquid storage member 13 to directly absorb the aerosol generating substrate flowing from the exchange holes 12d, to facilitate the liquid storage member 13 to more evenly absorb the aerosol generating substrate, and to enable the atomization core 11 to more evenly absorb the aerosol generating substrate, thereby reducing the risk of dry burning and other problems of the atomization core 11.

[0076] In some embodiments, during use of the aerosol generating device by the user, the first direction is substantially along the vertical direction, and the outlet of the atomization cavity 11a is at the top of the atomization cavity 11a.

[0077] In some embodiments, the opening of the air exchange passage in communication with the first space 12e is located at a side of the top of the first space 12e close to the atomizer 10 in the first direction, so that during use of the aerosol generating device by the user, the opening of the air exchange passage in communication with the first space 12e is at the top side of the first space 12e, and the aerosol generating substrate in the first space 12e is deposited at the bottom of the first space 12e under the action of gravity, thereby reducing the risk of leakage of the aerosol generating substrate into the air exchange passage.

[0078] The top of the atomizer 10 refers to the surface of the side of the atomizer 10 pointing away from the direction of gravity during use of the aerosol generating device by the user.

[0079] It can be understood that, during use of the aerosol generating device by the user, the air entering the first space 12e mainly accumulates at the top of the first space 12e.

[0080] In some embodiments, referring to Figures 1 to 3 , the installation assembly 12 is provided with an air outlet passage 12f extending in the first direction, and the opening of one end of the air outlet passage 12f is in communication with the atomization cavity 11a, and the opening of the other end of the air outlet passage 12f is located at the top of the atomizer 10 to be in communication with the outside of the aerosol generating device. During use of the aerosol generating device by the user, the aerosol in the atomization cavity 11a enters the air outlet passage 12f, and then enters the user's mouth through the air outlet passage 12f.

[0081] In some embodiments, referring to Figure 8 , at least part of the exchange hole 12d is a waist-shaped hole, and the long axis direction of the waist-shaped hole is the first direction.

[0082] The long axis direction of the waist-shaped hole refers to the straight line direction of the line connecting the centers of the two circular arcs of the waist-shaped hole.

[0083] In this way, it is beneficial to enable more regions of the liquid storage member 13 to directly absorb the aerosol generating substrate flowing in from the exchange hole 12d in the first direction, to increase the size of the exchange hole 12d in the first direction, and to enable the gas to pass through the exchange hole 12d even when there is less gas accumulation at the top of the first space 12e during use of the aerosol generating device by the user, and to facilitate the aerosol generating substrate to be more quickly absorbed by the portion of the liquid storage member 13 close to the top of the first space 12e.

[0084] It can be understood that, since there are both gas and liquid aerosol generating substrate in the first space 12e, the gas will exist in the form of bubbles in the aerosol generating substrate due to the surface tension of the aerosol generating substrate.

[0085] In some embodiments, referring to Figure 8The diameter of the inscribed circle of the cross section of the exchange hole 12d at any position along the extension direction of the exchange hole 12d is a first diameter, and the size of the first diameter is not less than 2.5 mm (millimeter).

[0086] In this way, the bubbles formed by the gas can smoothly pass through the exchange hole 12d, which is beneficial to improve the passing efficiency of the gas flow in the exchange hole 12d.

[0087] In some embodiments, referring to Figure 8 The diameter of the inscribed circle of the cross section of the exchange hole 12d at any position along the extension direction of the exchange hole 12d is a first diameter, and the size of the first diameter is not greater than 5 mm (millimeter).

[0088] In this way, the exchange hole 12d limits the flow of the aerosol generating substrate from the exchange cavity 12b into the first space 12e, reduces the probability that the aerosol generating substrate in the first space 12e is too much to affect the flow of the gas in the first space 12e and the formation of the bubbling sound and other abnormal sounds by the flow of the bubbles, reduces the probability that the aerosol generating substrate soaks the atomization core 11 and the risk of liquid leakage, and is beneficial to improve the taste of the user's suction.

[0089] In some embodiments, the size of the first diameter ranges from 2.5 mm to 5 mm.

[0090] The specific value of the first diameter can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc.

[0091] In some embodiments, referring to Figure 4 The inner wall of the exchange cavity 12b close to the top side of the atomizer 10 along the first direction is a first wall 12g, and the inner wall of at least part of the exchange hole 12d close to the top side of the atomizer 10 along the first direction is a second wall 12h. The first wall 12g and the second wall 12h are spaced apart along the first direction and located on the second wall 12h close to the top side of the atomizer 10 along the first direction.

[0092] It can be understood that the bubbles in the aerosol generating substrate move upward along the first direction and gather under the action of the buoyancy of the aerosol generating substrate.

[0093] The first wall 12g and the second wall 12h are spaced apart along the first direction and the first wall 12g is closer to the top of the atomizer 10 than the second wall 12h, so that, during use of the aerosol generating device by a user, after the bubbles enter the exchange cavity 12b from the exchange hole 12d, the bubbles can float into the space between the first wall 12g and the second wall 12h along the first direction of the exchange cavity 12b, reducing the hindering effect of the bubbles on the flow of the aerosol generating substrate and other bubbles due to the bubbles blocking the opening of the exchange hole 12d and the exchange cavity 12b.

[0094] In some embodiments, referring to Figure 4 , the first wall 12g and the second wall 12h are spaced apart along the first direction by a distance of no less than 2 mm. That is, D2≥2 mm.

[0095] In this way, the size of the space between the first wall 12g and the second wall 12h along the first direction of the exchange cavity 12b can further accommodate the bubbles, further reducing the hindering effect of the bubbles on the flow of the aerosol generating substrate and other bubbles due to the bubbles blocking the opening of the exchange hole 12d and the exchange cavity 12b.

[0096] The specific size of the distance between the first wall 12g and the second wall 12h along the first direction can be 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc.

[0097] In some embodiments, referring to Figure 5 and Figure 7 , the opening of the exchange hole 12d and the exchange cavity 12b is a first port, and the distance between the inner walls on both sides of the first port in the direction of the exchange cavity 12b is no less than 0.5 mm. That is, D3≥0.5 mm.

[0098] In this way, it is beneficial for the bubbles to flow into the exchange cavity 12b after entering the exchange hole 12d to enter the exchange channel 12c, reducing the hindering effect of the space size of the exchange cavity 12b on the flow of the bubbles, and improving the flow efficiency of the bubbles.

[0099] The specific value of the distance between the inner walls on both sides of the first port in the direction of the exchange cavity 12b can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc.

[0100] In some embodiments, referring to Figure 4 , Figure 5 and Figure 7 , the opening of the exchange hole 12d and the first space 12e is a second port, and the liquid storage member 13 blocks the second port.

[0101] Thus, it is beneficial to enable the aerosol generating substrate flowing into the first space 12e from the exchange hole 12d to be directly absorbed by the liquid storage member 13, reducing the probability of a portion of the atomization core 11 being soaked by the aerosol generating substrate.

[0102] In some embodiments, referring to Figure 7 , the exchange hole 12d extends along a linear direction to communicate the exchange cavity 12b and the first space 12e. Thus, it is beneficial to shorten the length of the flow path of the bubbles and the aerosol generating substrate in the exchange hole 12d, improving the flow efficiency of the two.

[0103] In some embodiments, referring to Figure 3 and Figure 6 , the number of exchange channels 12c is multiple, which is beneficial to improve the flow efficiency of the bubbles and the aerosol generating substrate between the atomizer 10 and the additional oil tank 20, and improve the speed of eliminating the negative pressure in the atomizer 10 and the additional oil tank 20.

[0104] In some embodiments, referring to Figure 3 and Figure 6 , the exchange channel 12c includes a first channel 12i and a second channel 12j, the opening of the first channel 12i communicating with the exchange cavity 12b is located at the side of the top of the exchange cavity 12b close to the atomizer 10 along the first direction, and the opening of the second channel 12j communicating with the exchange cavity 12b is located at the side of the top of the exchange cavity 12b away from the atomizer 10 along the first direction.

[0105] That is, the exchange channel 12c is at least two, at least one is the first channel 12i, and at least one is the second channel 12j.

[0106] The opening of the first channel 12i communicating with the exchange cavity 12b is located at the side of the top of the exchange cavity 12b close to the atomizer 10 along the first direction, which means that on the wall surface of the exchange cavity 12b where the opening of the first channel 12i communicating with the exchange cavity 12b is located, with the center surface of the wall surface along the first direction as a boundary, the opening of the first channel 12i communicating with the exchange cavity 12b is located at the side of the center surface close to the top of the atomizer 10.

[0107] The opening of the second channel 12j communicating with the exchange cavity 12b is located at the side of the top of the exchange cavity 12b away from the atomizer 10 along the first direction, which means that on the wall surface of the exchange cavity 12b where the opening of the second channel 12j communicating with the exchange cavity 12b is located, with the center surface of the wall surface along the first direction as a boundary, the opening of the second channel 12j communicating with the exchange cavity 12b is located at the side of the center surface away from the top of the atomizer 10.

[0108] In this way, on one hand, when the user uses the aerosol generating device, the bubbles entering the exchange cavity 12b are beneficial to enter the first channel 12i after floating up, and are beneficial to reduce the accumulation of the bubbles in the exchange cavity 12b after floating up, and directly discharge the atomizer 10 from the first channel 12i. On the other hand, under the action of gravity and buoyancy, the bubbles are difficult to enter the second channel 12j, and the second channel 12j is beneficial to have only the aerosol generating substrate flow, and is beneficial to reduce the hindering of the bubbles to the flow of the aerosol generating substrate, and improve the flow efficiency of the aerosol generating substrate.

[0109] In some embodiments, referring to , the edge of the opening through which the first channel 12i communicates with the exchange cavity 12b is flush with the inner wall of the side of the exchange cavity 12b close to the top of the atomizer 10 in the first direction, so that the bubbles located at the top of the exchange cavity 12b can directly enter the first channel 12i during the use of the aerosol generating device by the user.

[0110] In some embodiments, referring to

[0111] , the edge of the opening through which the second channel 12j communicates with the exchange cavity 12b is flush with the inner wall of the side of the exchange cavity 12b away from the top of the atomizer 10 in the first direction, so that the flow of the aerosol generating substrate entering the exchange cavity 12b is beneficial to reduce the adverse effect on the movement of the bubbles flowing out of the first channel 12i during the use of the aerosol generating device by the user. Figure 3 In some embodiments, referring to

[0112] , the opening through which the first channel 12i communicates with the exchange cavity 12b and the opening through which the second channel 12j communicates with the exchange cavity 12b are located on the same wall surface of the exchange cavity 12b, thereby being beneficial to the synchronous manufacturing of the first channel 12i and the second channel 12j. Figure 6 In some embodiments, referring to

[0113] , the diameter of the inscribed circle of the cross section of the first channel 12i at any position along the extension direction of the first channel 12i is a second diameter, and the size of the second diameter is not less than 2.5 mm. That is, D4≥2.5 mm.

[0114] In this way, it is beneficial to the bubbles to smoothly enter the first channel 12i, and improve the efficiency of the gas entering the additional oil tank 20.

[0115] In some embodiments, referring to Figure 6 , the diameter of the inscribed circle of the cross section of the second channel 12j at any position along the extension direction of the second channel 12j is a third diameter, and the size of the third diameter is not less than 1.5 mm. That is, D5≥1.5 mm.

[0116] In this way, the flow rate of the aerosol generating substrate flowing in the second channel 12j can be increased, and the flow resistance of the aerosol generating substrate with a lower liquid level during use of the aerosol generating device by the user can be reduced.

[0117] The third diameter can be 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc.

[0118] In some embodiments, referring to Figure 9 and Figure 13 The exchange channel 12c is a waist-shaped hole, and the long axis direction of the exchange channel 12c is the first direction.

[0119] In this way, the gas can enter the exchange channel 12c from the exchange cavity 12b in the case where the first direction is substantially along the direction of gravity, and the aerosol generating substrate can flow below the gas while the gas flows in the exchange channel 12c.

[0120] In some embodiments in which the exchange channel 12c is a waist-shaped hole, the diameter of the circular arc portion of the exchange channel 12c is not less than 2.5 mm.

[0121] In this way, the bubbles can more smoothly enter the exchange channel 12c and flow in the exchange channel 12c.

[0122] The diameter of the circular arc portion of the exchange channel 12c can be 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc.

[0123] In some embodiments, referring to Figures 3 to 5 , Figure 7 The mounting assembly 12 includes a housing 121, a sealing seat 122, and a partition 123. The housing 121 is provided with a containing cavity and an exchange channel 12c. The exchange channel 12c is located on one side of the containing cavity along the second direction and communicates the containing cavity with the outside of the atomizer 10. The sealing seat 122 is arranged in the containing cavity and is provided with a first cavity 122a. The first cavity 122a is open on the side facing the exchange channel 12c along the second direction. The housing 121 covers the open side of the first cavity 122a. The first cavity 122a communicates with the exchange channel 12c. The partition 123 is provided with an exchange hole 12d. The partition 123 is arranged in the first cavity 122a and divides the first cavity 122a into a mounting cavity 12a and an exchange cavity 12b.

[0124] The containing cavity of the housing 121 provides the mounting space required for the atomization core 11, the sealing seat 122, and the partition 123.

[0125] The sealing seat 122 is made of elastic material. The sealing seat 122 abuts against the inner wall of the accommodating cavity, so that the sealing seat 122 is elastically deformed, and thus the gas and the aerosol generating substrate are difficult to leak from the second space.

[0126] The partition 123 is clamped between the inner walls of the first cavity 122a on both sides in the first direction, so as to be deformed by the sealing seat 122, and thus the gas and the aerosol generating substrate in the mounting cavity 12a are difficult to leak.

[0127] The specific type of the elastic material used by the sealing seat 122 is not limited, for example, rubber, silica gel, etc.

[0128] It can be understood that the inner wall of the exchange cavity 12b includes the partition 123, the sealing seat 122 and the shell 121, which are formed by a part of the surface of the three.

[0129] In some embodiments, referring to Figure 8 The exchange hole 12d is arranged on the circumferential side of the partition 123 perpendicular to the first direction, so that the plurality of exchange holes 12d can be arranged around the liquid storage member 13.

[0130] In some embodiments, the first cavity 122a is only open to one side of the exchange channel 12c in the second direction, so as to facilitate the improvement of the sealing performance of the second space.

[0131] The sealing seat 122 can be an integral structure; or can be a split structure formed by splicing a plurality of parts, so as to facilitate the reduction of manufacturing cost.

[0132] For example, referring to Figure 3 The sealing seat 122 includes at least two mounting seats 1221, the two mounting seats 1221 are sealingly attached along the first direction and jointly surround to form the first cavity 122a, one end of the partition 123 is sealingly attached to one mounting seat 1221 along the first direction, and the other end is sealingly attached to the other mounting seat 1221.

[0133] In some embodiments, referring to Figure 8 The partition 123 is a hollow cylinder structure, the second cavity 123a is arranged in the partition 123 and penetrates the partition 123 along the first direction, and the sealing seat 122 covers the two end openings of the second cavity 123a.

[0134] The embodiments of the present application also provide an aerosol generating device, referring to Figures 10 to 13 The aerosol generating device includes the additional oil tank 20 and the atomizer 10 of any one of the foregoing embodiments, the additional oil tank 20 is arranged on one side of the atomizer 10 along the second direction, the first direction intersects the second direction, the additional oil tank 20 is provided with an additional storage cavity 21a, and the additional storage cavity 21a can communicate with the exchange channel 12c.

[0135] The additional storage cavity 21a is used for storing the aerosol generating substrate.

[0136] The aerosol generating substrate in the additional storage cavity 21a can enter the atomizer 10 through the exchange channel 12c and be replenished into the first space 12e, thereby prolonging the puffing life of the atomizer 10.

[0137] The additional cartridge 20 is detachably arranged with the atomizer 10 so as to be replaced by a new additional cartridge 20 after the aerosol generating substrate in the additional storage cavity 21a is exhausted.

[0138] The additional cartridge 20 is located at one side of the atomizer 10 along the second direction, so as to facilitate reducing the size of the exchange channel 12c.

[0139] In some embodiments, the first direction is perpendicular to the second direction.

[0140] In some embodiments, referring to Figures 14 to 18 , the additional cartridge 20 comprises a housing assembly 21 and a sealing member 22, the housing assembly 21 is provided with an additional storage cavity 21a and a plug-in hole 21b, the plug-in hole 21b is in communication with the additional storage cavity 21a and the outside of the additional cartridge 20; the sealing member 22 comprises a blocking part 221 and an elastic reset part 222, the blocking part 221 is arranged in the additional storage cavity 21a and blocks the plug-in hole 21b, and a part of the elastic reset part 222 is fixed relative to the housing assembly 21; the plug-in hole 21b is used for inserting the atomizer 10 into the inside thereof to push the blocking part 221 to move away from the plug-in hole 21b, and in the state that the blocking part 221 moves away from the plug-in hole 21b, the elastic reset part 222 is elastically deformed to make the blocking part 221 have a movement tendency towards the plug-in hole 21b to block the plug-in hole 21b.

[0141] At least part of the atomizer 10 is inserted into the plug-in hole 21b until abutting against the blocking part 221, thereby pushing the blocking part 221 to move, so that the blocking part 221 moves away from the plug-in hole 21b to enable the exchange channel 12c to be in communication with the additional storage cavity 21a, and the aerosol generating substrate in the additional storage cavity 21a can enter the atomizer 10.

[0142] In this way, by the elastic force applied to the blocking part 221 by the elastic reset part 222, on the one hand, it is beneficial to keep the position of the blocking part 221 in the additional storage cavity 21a in the state that the atomizer 10 is inserted into the plug-in hole 21b, and reduce the abnormal sound caused by the blocking part 221 shaking in the additional storage cavity 21a; on the other hand, it is convenient for the blocking part 221 to block the plug-in hole 21b again after the atomizer 10 is pulled out of the plug-in hole 21b, and reduce the probability of the aerosol generating substrate remaining in the additional storage cavity 21a leaking after the additional cartridge 20 is removed from the aerosol generating device.

[0143] In some embodiments in which the number of exchange channels 12c is plural, referring to Figure 12 and Figure 13 the number of insertion holes 21b, the number of blocking portions 221, and the number of exchange channels 12c are the same.

[0144] In some embodiments, referring to Figure 17 a fitting hole 221a is arranged on the surface of the blocking portion 221 facing the side of the insertion hole 21b, the fitting hole 221a and the insertion opening both extend along the second direction, the fitting hole 221a is open on the side of the atomizer 10 along the second direction and is closed on the other side, and the fitting hole 221a is used for inserting a part of the atomizer 10 therein so as to reduce the probability of the atomizer 10 being separated from the blocking portion 221 during the movement of the blocking portion 221 being pushed.

[0145] In some embodiments, referring to Figure 15 and Figure 17 the elastic restoring portion 222 is located in the additional storage cavity 21a. In this way, the probability of the elastic restoring portion 222 being damaged due to being exposed to the outside of the shell assembly 21 is avoided.

[0146] In some embodiments, the blocking portion 221 and the elastic restoring portion 222 are made of a food-grade material, such as food-grade silica gel, so as to reduce the probability of the blocking portion 221 and the elastic restoring portion 222 polluting the aerosol generating substrate in the additional storage cavity 21a.

[0147] In some embodiments, the number of elastic restoring portions 222 corresponding to one blocking portion 221 is plural, so that the elastic restoring force can be generated on the blocking portion 221 even if the elastic restoring force of some of the elastic restoring portions 222 fails.

[0148] The plural elastic restoring portions 222 refer to the number of elastic restoring portions 222 being not less than 2.

[0149] In some embodiments in which the number of elastic restoring portions 222 is plural, referring to Figure 14 and Figure 15 the insertion hole 21b extends along the second direction, the elastic restoring portion 222 extends perpendicularly to the second direction, and the elastic restoring portions 222 are uniformly arranged around the blocking portion 221 along the axis extending along the second direction.

[0150] Under the guidance of the insertion hole 21b, the atomizer 10 pushes the blocking portion 221 to move along the first direction, drives the elastic restoring portion 222 to stretch, and further causes the elastic restoring portion 222 to generate the elastic restoring force on the blocking portion 221.

[0151] When the elastic reset portion 222 is stretched, the elastic force generated by the elastic reset portion 222 on the blocking portion 221 can be decomposed into a first component in the first direction and a second component perpendicular to the first direction. Under the action of the first component, the blocking portion 221 can move in the first direction. The elastic reset portions 222 are uniformly arranged, so that the second components generated by the elastic reset portions 222 balance each other, which is beneficial to keeping the position of the blocking portion 221 stable in the direction perpendicular to the first direction, and is beneficial to accurately plugging the insertion hole 21b after the atomizer 10 is pulled out of the insertion hole 21b.

[0152] The uniform arrangement between the elastic reset portions 222 means that the included angle between the geometric centers of the projection profiles of any two adjacent elastic reset portions 222 is the same in the projection perpendicular to the first direction. For example, when the number of elastic reset portions 222 is two, the included angle between the geometric centers of the projection profiles of the two elastic reset portions 222 is 180°; for example, when the number of elastic reset portions 222 is three, the included angle between the geometric centers of the projection profiles of the two elastic reset portions 222 is 120°; and when the number of elastic reset portions 222 is four, the included angle between the geometric centers of the projection profiles of the two elastic reset portions 222 is 90°.

[0153] In some embodiments, referring to Figure 17 The additional storage cavity 21a is provided with a stop surface 21c, which is located on the side of the blocking portion 221 away from the insertion hole 21b in the second direction, and the elastic reset portion 222 is clamped between the stop surface 21c and the blocking portion 221.

[0154] In this way, it is beneficial to reduce the resistance of the elastic reset portion 222 to the inflow of the aerosol generating substrate in the exchange channel 12c and the resistance of the gas from the exchange channel 12c into the additional storage cavity 21a.

[0155] In some embodiments, referring to Figure 17 The inner wall of one side of the additional storage cavity 21a in the first direction is provided with a stop block 211, the stop block 211 is provided with a stop hole 211a, the stop hole 211a is open on the side of the blocking portion 221 in the second direction, the inner wall of the stop hole 211a away from the open position in the second direction forms a stop surface 21c, and part of the elastic reset portion 222 is located in the stop hole 211a.

[0156] In this way, the stop hole 211a limits the elastic reset portion 222, reducing the probability of the elastic reset portion 222 detaching from the stop surface 21c during the stretching and shrinking deformation.

[0157] The specific structure of the elastic reset portion 222 is not limited, and in some embodiments, referring to Figure 15The elastic reset part 222 is a plate-shaped structure made of food-grade silica gel. In other embodiments, referring to Figure 17 The elastic reset part 222 is a spring.

[0158] In some embodiments in which the elastic reset part 222 is a spring, referring to Figure 17 The blocking part 221 is provided with a mounting groove 221b on the side away from the insertion hole 21b in the second direction. The mounting groove 221b is open on the side away from the insertion hole 21b in the second direction. The mounting groove 221b is provided with a positioning protrusion 2211 extending in the second direction. A part of the elastic reset part 222 is embedded in the mounting groove 221b, and the positioning protrusion 2211 is embedded in the elastic reset part 222.

[0159] The positioning protrusion 2211 and the inner wall of the mounting groove 221b limit the elastic reset part 222, reducing the probability of the elastic reset part 222 being separated from the blocking part 221 during the stretching and deforming process.

[0160] In some embodiments, referring to Figures 16 to 18 The additional storage cavity 21a includes a storage sub-cavity 21d and a confluence sub-cavity 21e. The confluence sub-cavity 21e is open on one side in the first direction to form an opening 21g and is in communication with the storage sub-cavity 21d. The inner wall of the storage sub-cavity 21d on the side away from the top of the atomizer 10 in the first direction is a confluence wall 21f. The opening 21g is located at the end of the confluence wall 21f close to the atomizer 10 in the second direction. The first direction intersects the second direction. The confluence sub-cavity 21e is open on one side in the second direction to communicate with the exchange channel 12c.

[0161] The confluence wall 21f is one of the inner walls of the storage sub-cavity 21d on both sides in the first direction.

[0162] In this way, under the action of gravity, as the aerosol generating substrate in the additional storage cavity 21a is consumed, the last remaining aerosol generating substrate can still accumulate in the confluence sub-cavity 21e and flow into the exchange channel 12c, improving the utilization rate of the aerosol generating substrate in the additional storage cavity 21a.

[0163] In some embodiments, referring to Figure 17 The stop block 211 is provided on the confluence wall 21f.

[0164] In some embodiments, referring to Figure 17 The end of the confluence wall 21f close to the exchange channel 12c in the second direction is farther away from the top of the atomizer 10 in the first direction than the end of the confluence wall 21f away from the exchange channel 12c.

[0165] That is, the confluence wall 21f is inclined. In a case where the first direction is substantially along a vertical direction, the confluence wall 21f is lower at an end thereof closer to the exchange passage 12c than at an end thereof farther from the exchange passage 12c along the second direction.

[0166] In this way, it is beneficial for the aerosol generating substrate on the confluence wall 21f to flow along the confluence wall 21f toward the opening 21g and eventually flow into the confluence sub-cavity 21e under the action of gravity, which is beneficial for further improving the utilization rate of the aerosol generating substrate in the additional storage cavity 21a.

[0167] In some embodiments, referring to Figure 18 , the confluence wall 21f includes two sub-walls 21h connected to each other, the two sub-walls 21h are arranged along a third direction, the first direction, the second direction, and the third direction intersect with each other, the sub-wall 21h is closer to the top of the atomizer 10 along the first direction at an end thereof farther from the other sub-wall 21h than at an end thereof closer to the other sub-wall 21h along the third direction, and a part of the opening 21g is located at one sub-wall 21h and another part of the opening 21g is located at the other sub-wall 21h.

[0168] That is, the sub-wall 21h is inclined. In a case where the first direction is substantially along a vertical direction, the sub-wall 21h is higher at an end thereof farther from the other sub-wall 21h than at an end thereof closer to the other sub-wall 21h along the third direction.

[0169] In this way, it is beneficial for the aerosol generating substrate on the sub-wall 21h to flow along the sub-wall 21h toward the opening 21g and eventually flow into the confluence sub-cavity 21e under the action of gravity, which is beneficial for further improving the utilization rate of the aerosol generating substrate in the additional storage cavity 21a.

[0170] In some embodiments, the first direction, the second direction, and the third direction are perpendicular to each other.

[0171] In some embodiments, referring to Figure 17 , the sub-wall 21h is farther away from the top of the atomizer 10 along the first direction at an end thereof closer to the exchange passage 12c than at an end thereof farther from the exchange passage 12c along the second direction.

[0172] In this way, it is beneficial for more aerosol generating substrate to converge into the confluence sub-cavity 21e under the action of gravity.

[0173] In some embodiments, referring to Figure 17 , an inner wall of the confluence sub-cavity 21e on a side thereof farther from the opening 21g forms an inner wall of an end of the additional storage cavity 21a along the first direction, and in this way, the inner wall of the confluence sub-cavity 21e on the side thereof farther from the opening 21g forms a lowest inner wall of the additional storage cavity 21a, thereby facilitating the convergence of the aerosol generating substrate to flow toward the exchange passage 12c.

[0174] The various embodiments / implementation provided in the present application can be combined with each other in the case of no contradiction.

[0175] The above merely provides the preferred embodiment of the present application but not for limiting the embodiments in the present application. The embodiments of the present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall fall within the scope of protection of the embodiments of the present application.

Claims

1. An atomizer characterized by, The atomizer comprises: an atomizing core; a mounting assembly provided with a mounting cavity, an exchange cavity, an exchange channel and a plurality of exchange holes, the atomizing core being located in the mounting cavity and jointly surrounding a first space with an inner wall of the mounting cavity, the exchange holes communicating the first space and the exchange cavity, the exchange channel communicating the exchange cavity and an outside of the atomizer, entrances of at least part of the exchange holes being staggered with an exit of the exchange channel; a liquid storage member provided in the first space and fluidly connected with the atomizing core.

2. The atomizer of claim 1, wherein, The atomizing core is provided with an atomizing cavity extending along a first direction, and at least part of the exchange holes are arranged on an outer side of the atomizing cavity and have an axis direction surrounding the atomizing cavity and extending along the first direction. At least part of the exchange holes are waist-shaped holes, and a long axis direction of the waist-shaped holes is the first direction.

3. The atomizer of claim 1, wherein, A diameter of an inscribed circle of a cross section of the exchange hole at any position along an extension direction of the exchange hole is a first diameter, and a size range of the first diameter is 2.5 mm to 5 mm.

4. The atomizer of claim 1, wherein, The atomizing core is provided with an atomizing cavity extending along a first direction, an inner wall of the exchange cavity close to a top of the atomizer along the first direction is a first wall, and an inner wall of at least part of the exchange holes close to the top of the atomizer along the first direction is a second wall, the first wall is spaced apart from the second wall along the first direction and is located on a side of the second wall close to the top of the atomizer along the first direction.

5. The atomizer of claim 4, wherein, The first wall is spaced apart from the second wall along the first direction by a distance not less than 2 mm.

6. The atomizer of claim 1, wherein, An opening of the exchange hole communicating with the exchange cavity is a first opening, and a spacing between inner walls on two sides of the exchange cavity along a direction of the first opening is not less than 0.5 mm. An opening of the exchange hole communicating with the first space is a second opening, and the liquid storage member blocks the second opening.

7. The atomizer of claim 1, wherein, The atomizing core is provided with an atomizing cavity extending along a first direction, the exchange channel includes a first channel and a second channel, an opening of the first channel communicating with the exchange cavity is located on a side of the exchange cavity close to a top of the atomizer along the first direction, an opening of the second channel communicating with the exchange cavity is located on a side of the exchange cavity away from the top of the atomizer along the first direction, a diameter of an inscribed circle of a cross section of the first channel at any position along an extension direction of the first channel is a second diameter, and a size of the second diameter is not less than 2.5 mm. At least part of the exchange holes are waist-shaped holes, and a long axis direction of the waist-shaped holes is the first direction.

8. The atomizer of claim 1, wherein, The second channel has a waist-shaped hole, and a long axis direction of the waist-shaped hole is the first direction, and a diameter of a circular arc portion of the waist-shaped hole is not less than 2.5 mm.

9. The atomizer of any of claims 1-8, wherein, The installation assembly comprises a housing, a sealing seat and a partition, the housing is provided with a containing cavity and an exchange channel, the exchange channel is located on one side of the containing cavity along a second direction and communicates the containing cavity with the outside of the atomizer, the sealing seat is arranged in the containing cavity, the sealing seat is provided with a first cavity, the first cavity is open on one side facing the exchange channel along the second direction, the housing covers the open side of the first cavity, the first cavity communicates with the exchange channel, the partition is provided with the exchange hole, and the partition is arranged in the first cavity and separates the first cavity into the installation cavity and the exchange cavity.

10. An aerosol-generating device comprising: The aerosol generating device comprises the additional oil tank and the atomizer of any one of claims 1-9, the additional oil tank is arranged on one side of the atomizer along a second direction, the additional oil tank is provided with an additional storage cavity, the additional storage cavity comprises a storage sub-cavity and a confluence sub-cavity, the confluence sub-cavity is open on one side along a first direction to form an opening and communicates with the storage sub-cavity, the storage sub-cavity is a confluence wall away from the top wall of the atomizer along the first direction on one side, the opening is located at one end of the confluence wall close to the atomizer along the second direction, the first direction intersects the second direction, the confluence sub-cavity is open on one side along the second direction to communicate with the exchange channel, the one end of the confluence wall close to the exchange channel along the second direction is farther away from the top wall of the atomizer than the other end along the first direction; And / or, the confluence wall comprises two sub-walls connected to each other, the two sub-walls are arranged along a third direction, the first direction, the second direction and the third direction intersect each other, the one end of the sub-wall away from the other sub-wall along the third direction is closer to the top wall of the atomizer along the first direction than the other end, and part of the opening is located on one sub-wall and the other part is located on the other sub-wall.

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