Auxiliary oil bin and aerosol generating system

Abstract

The utility model relates to the technical field of aerosol generation, and provides an auxiliary oil bin and an aerosol generation system.The auxiliary oil bin is provided with an airflow channel, the airflow channel communicates with a liquid storage cavity and the outside, and communication between the inside and the outside of the liquid storage cavity is achieved; the air pressure balance structure is embedded and mounted in the air flow channel and is configured to allow the air flow in the air flow channel to flow into the liquid storage cavity from the outside of the liquid storage cavity in a one-way manner, so that the external air flow flows into the liquid storage cavity through the air flow channel while the liquid aerosol generating matrix in the liquid storage cavity flows out of the communicating part; the internal and external pressure difference of the liquid storage cavity is balanced, the efficiency that the auxiliary oil bin conveys the liquid aerosol generating matrix to the aerosol generating device is effectively guaranteed, it is guaranteed that liquid is stably and continuously supplied to the aerosol generating device, and aerosol generated through atomization is stable in taste.

Description

Technical Field

[0001] This application relates to the technical field of aerosol generation, and particularly relates to a secondary oil tank and an aerosol generation system. Background Art

[0002] An aerosol generation device is an electronic device used to heat a liquid aerosol generation matrix and atomize it to generate an aerosol. It usually includes a liquid storage tank and an atomization component. The liquid storage tank stores the liquid aerosol generation matrix, and the atomization component atomizes to generate an aerosol. For some aerosol generation devices, the liquid storage tank and the atomization component are not detachable. After the aerosol generation matrix is consumed, the service life ends, while the atomization component usually does not reach the service life, which easily causes waste of resources. An external liquid storage tank can be used to supply the liquid aerosol generation matrix to the aerosol generation device, which is beneficial to making full use of the atomization component and reducing waste. However, when the external liquid storage tank supplies liquid to the aerosol generation device, there is a problem of inconsistent internal and external pressure differences, making the liquid supply efficiency unable to match the liquid consumption efficiency of the atomization core. Summary of the Utility Model

[0003] In view of the above deficiencies of the prior art, the purpose of this application is to provide a secondary oil tank and an aerosol generation system, aiming to prevent the liquid supply efficiency of the external liquid storage tank to the atomization component from being affected by the internal and external pressure differences and ensure normal liquid supply.

[0004] One technical solution adopted by this application to solve the technical problem is as follows: A secondary oil tank is applied to an aerosol generation system, and the aerosol generation system includes an aerosol generation device. The secondary oil tank is used to provide an aerosol generation matrix to the aerosol generation device, and the secondary oil tank includes:

[0005] A liquid storage member having a liquid storage cavity and an air flow channel, and the air flow channel communicates the liquid storage cavity with the outside of the liquid storage cavity; and

[0006] An air pressure balance structure embedded in the air flow channel;

[0007] Wherein, the air pressure balance structure is configured to allow the air flow in the air flow channel to flow unidirectionally from the outside of the liquid storage cavity into the liquid storage cavity.

[0008] Optionally, the air pressure balance structure includes a one-way valve embedded in the air flow channel; the one-way valve is configured to open the air flow channel when there is an air flow in the air flow channel flowing from the outside of the liquid storage cavity into the liquid storage cavity, and close the air flow channel when there is a liquid flowing from the liquid storage cavity to the outside of the liquid storage cavity in the air flow channel.

[0009] Optionally, the one-way valve includes a valve body and a valve plate, the valve body is located in the airflow channel, the outer periphery of the valve body seals the inner wall of the airflow channel, the valve body has a through opening, the valve plate closes the opening, and the valve plate opens the opening in one direction when the external airflow flows toward the liquid storage chamber.

[0010] Optionally, one end of the airflow channel close to the liquid storage chamber is provided with a sealing surface facing the liquid storage chamber, and the sealing surface is arranged around the airflow channel;

[0011] The one-way valve includes a sealing plug and a spring, wherein the spring is connected to the liquid storage component, and the sealing plug is connected to one end of the spring away from the liquid storage cavity and abuts against the sealing surface under the elastic force of the spring to close the air flow channel.

[0012] Optionally, the air flow channel is located at the top of the liquid storage component; the air pressure balance structure includes a sealing plug, which is located in the air flow channel, and the outer periphery of the sealing plug fits and seals the inner wall of the air flow channel. The sealing plug is provided with air-permeable micropores, and both ends of the air-permeable micropores are connected to the liquid storage cavity and the outside of the liquid storage cavity.

[0013] Optionally, the air-permeable micropores are in a cone shape, and the apertures of the air-permeable micropores gradually decrease in a direction approaching the liquid storage chamber.

[0014] Optionally, the liquid storage component includes an upper cover and a bottom shell; the top end of the bottom shell is open; the upper cover is detachably connected to the bottom shell and closes the top end of the bottom shell, and the upper cover and the bottom shell are arranged to form the liquid storage cavity; the air pressure balance structure is embedded in the upper cover.

[0015] Another technical solution adopted by the present application to solve the technical problem is as follows: an aerosol generating system, comprising:

[0016] an aerosol generating device; and

[0017] The auxiliary oil tank as described above is used to provide an aerosol generating substrate to the aerosol generating device.

[0018] Optionally, a fixing portion is provided at the top of the liquid storage component on a side close to the aerosol generating device, and the fixing portion is detachably connected to the aerosol generating device.

[0019] Optionally, a connecting portion is provided at the bottom end of the liquid storage component, and a docking portion is provided at the bottom end of the aerosol generating device; one of the docking portion and the connecting portion is provided with a cylindrical protrusion, and the other is provided with a groove, and the cylindrical protrusion is fitted and inserted into the groove to connect the liquid storage chamber and the aerosol generating device.

[0020] The present application provides a secondary oil reservoir and an aerosol generating system. The secondary oil reservoir is provided with an air flow channel that connects the liquid storage cavity and the outside, enabling the inside and outside of the liquid storage cavity to communicate with each other. The air pressure balance structure is embedded in the air flow channel and is configured to allow the air flow in the air flow channel to flow unidirectionally from the outside of the liquid storage cavity into the liquid storage cavity. When the liquid aerosol generating matrix in the liquid storage cavity flows out from the communication part, the outside air flow flows into the liquid storage cavity through the air flow channel, so that the internal and external pressure difference of the liquid storage cavity is balanced, effectively ensuring the efficiency of the secondary oil reservoir in delivering the liquid aerosol generating matrix to the aerosol generating device, ensuring stable and continuous liquid supply to the aerosol generating device, and making the taste of the atomized aerosol stable. Description of the Drawings

[0021] Figure 1 is a schematic three-dimensional structure diagram of the aerosol generating system provided in the present application;

[0022] Figure 2 is a schematic three-dimensional exploded structure diagram of the aerosol generating system provided in the present application;

[0023] Figure 3 is a schematic three-dimensional sectional view of the aerosol generating system provided in the present application;

[0024] Figure 4 is a schematic three-dimensional exploded structure diagram of the aerosol generating system provided in the present application;

[0025] Figure 5 is a schematic three-dimensional exploded sectional view of the aerosol generating system provided in the present application;

[0026] Figure 6 is the present application Figure 5 magnified schematic view of part A;

[0027] Figure 7 is a partial schematic sectional view of the deformed structure of the secondary oil reservoir provided in the present application;

[0028] Figure 8 is a partial schematic sectional view of the deformed structure of the secondary oil reservoir provided in the present application;

[0029] Figure 9 is a partial schematic sectional view of the deformed structure of the secondary oil reservoir provided in the present application.

[0030] Description of the Reference Numerals:

[0031] Aerosol generating system - 100;

[0032] Aerosol generating device - 10; Docking part - 11;

[0033] Auxiliary oil tank - 20; liquid storage member - 21; liquid storage cavity - 211; communication part - 212; fixing part - 213; air flow channel - 214; sealing surface - 2141; upper cover - 215; bottom case - 216; air pressure balance structure - 22; one - way valve - 221; valve body - 2211; valve disc - 2212; opening - 2213; sealing plug - 2214; spring - 2215; sealing plug - 222; air - permeable micropores - 2221;

[0034] Cylindrical protrusion - 30;

[0035] Groove - 40. Detailed implementation manners

[0036] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as a limitation of the present application.

[0037] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 thus should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0038] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] The present application aims to avoid the influence of the internal and external pressure difference on the liquid supply efficiency of the external liquid storage chamber to the atomization device, ensure normal liquid supply, and provides a secondary oil chamber and an aerosol generation system. The secondary oil chamber is provided with an air flow channel, and the air flow channel communicates with the liquid storage cavity and the outside, realizing the connection between the inside and outside of the liquid storage cavity; the air pressure balance structure is embedded in the air flow channel, and the air pressure balance structure is configured to allow the air flow in the air flow channel to flow unidirectionally from the outside of the liquid storage cavity into the liquid storage cavity, so that while the liquid aerosol generation matrix in the liquid storage cavity flows out from the communication part, the external air flow flows into the liquid storage cavity through the air flow channel, making the internal and external pressure difference of the liquid storage cavity balanced, effectively ensuring the efficiency of the secondary oil chamber to transport the liquid aerosol generation matrix to the aerosol generation device, ensuring stable and continuous liquid supply to the aerosol generation device, and making the taste of the atomized aerosol stable; for specific details, please refer to the following embodiments.

[0040] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In one embodiment of the present application, an aerosol generation system 100 is provided, which includes an aerosol generation device 10 and a secondary oil chamber 20. The aerosol generation device 10 plays a role in atomizing and heating the liquid aerosol generation matrix, and the secondary oil chamber 20 is used to provide the aerosol generation matrix to the aerosol generation device 10, so as to increase the space for storing the aerosol generation matrix in the aerosol generation system 100, which is beneficial to extending the service life of the aerosol generation system 100. Among them, the secondary oil chamber 20 includes a liquid storage member 21, and the liquid storage member 21 has a liquid storage cavity 211 for storing the liquid aerosol generation matrix; a communication part 212 is provided at the bottom end of the liquid storage member 21. Correspondingly, a docking part 11 is provided at the bottom end of the aerosol generation device 10, so that the aerosol generation device 10 can be docked and matched with the communication part 212 of the liquid storage member 21 through the docking part 11 to achieve communication; specifically set as: one of the docking part 11 and the communication part 212 is provided with a cylindrical protrusion 30, and the other is provided with a groove 40. The cylindrical protrusion 30 is inserted into the groove 40 in a matching manner, and the opening 2213 of the cylindrical protrusion 30 is arranged opposite to the notch of the groove 40, so that after the cylindrical protrusion 30 is inserted into the groove 40 in a matching manner, the liquid storage cavity 211 is communicated with the atomization part of the aerosol generation device 10, so that the liquid aerosol generation matrix can flow from the liquid storage cavity 211 to the aerosol generation device 10, and at the same time, the difficulty of installing the secondary oil chamber 20 to the aerosol generation device 10 can be reduced, which is convenient for users to replace the secondary oil chamber 20. A fixing part 213 is provided at the top end of the liquid storage member 21 close to the aerosol generation device 10, and the fixing part 213 is detachably connected to the aerosol generation device 10. The detachable connection method is specifically: magnetic attraction, clamping or bonding, etc. Using the fixing part 213 to detachably connect the aerosol generation device 10 simplifies the installation process of the secondary oil chamber 20 and is convenient for replacing the secondary oil chamber 20.

[0041] Please continue to refer to Figure 1 、 Figure 2, Figure 3 and Figure 4 , wherein the liquid storage member 21 has an air flow channel 214 which communicates with the inside of the liquid storage cavity 211 and the outside of the liquid storage cavity 211 to allow external air flow to flow into the liquid storage cavity 211. In order to ensure the pressure balance inside and outside the liquid storage cavity 211 during the process of the aerosol-forming substrate flowing out of the liquid storage cavity 211, the secondary oil storage chamber 20 is further provided with a pressure balance structure 22 which is embedded in the air flow channel 214. The pressure balance structure 22 is configured to allow the air flow in the air flow channel 214 to flow unidirectionally from the outside of the liquid storage cavity 211 into the liquid storage cavity 211. When the aerosol-forming substrate flows out of the liquid storage cavity 211 through the communication part 212, the reduction in the stock of the aerosol-forming substrate in the liquid storage cavity 211 will cause a negative pressure, which hinders the outflow of the aerosol-forming substrate. By adopting the pressure balance structure 22, the external air flow can enter the liquid storage cavity 211 in time to supplement the volume of the aerosol-forming substrate flowing out, ensuring the pressure balance inside and outside, effectively ensuring the efficiency of the secondary oil storage chamber 20 in delivering the liquid aerosol-forming substrate to the aerosol generating device 10, ensuring stable liquid supply to the atomizing part in the aerosol generating device 10, and making the taste of the atomized aerosol stable; at the same time, the pressure balance structure 22 only allows the air flow in the air flow channel 214 to flow unidirectionally from the outside of the liquid storage cavity 211 into the liquid storage cavity 211, thereby preventing the liquid aerosol-forming substrate in the liquid storage cavity 211 from flowing out through the air flow channel 214 and avoiding leakage.

[0042] Please continue to refer to Figure 1 and Figure 4 , further, the liquid storage member 21 can be designed into a detachable structure. For example: the liquid storage member 21 includes an upper cover 215 and a bottom shell 216; the top of the bottom shell 216 is open, and the aerosol-forming substrate can be added inward from the top of the bottom shell 216; the upper cover 215 is detachably connected to the bottom shell 216 and closes the top of the bottom shell 216, and the upper cover 215 and the bottom shell 216 enclose the liquid storage cavity 211, which is convenient for the disassembly and assembly of the upper cover 215 and the bottom shell 216, effectively reducing the operation difficulty of adding the aerosol-forming substrate into the liquid storage cavity 211; the pressure balance structure 22 is embedded in the upper cover 215, which is convenient for production and assembly.

[0043] Please refer to Figure 2 , Figure 5 , Figure 6 and Figure 7In another embodiment, the air pressure balance structure 22 includes a one-way valve 221, which is embedded in the air flow channel 214 and has a one-way opening function for the air flow channel 214. The one-way valve 221 is configured to open the air flow channel 214 when there is air flow from the outside of the liquid storage chamber 211 to the inside of the liquid storage chamber 211 in the air flow channel 214, so that the pressure difference between the inside and outside of the liquid storage chamber 211 is balanced, effectively ensuring the efficiency of the auxiliary oil tank 20 in conveying the liquid aerosol generating substrate to the aerosol generating device 10, ensuring the liquid supply to the atomization part in the aerosol generating device 10, so that the aerosol generated by atomization has a stable taste. The one-way valve 221 is configured to close the air flow channel 214 when there is liquid flowing from the liquid storage chamber 211 to the outside of the liquid storage chamber 211 in the air flow channel 214, preventing the liquid aerosol generating substrate in the liquid storage chamber 211 from flowing to the outside through the air flow channel 214, and avoiding leakage.

[0044] Please continue to refer to Figure 5 and Figure 6 Furthermore, the one-way valve 221 includes a valve body 2211 and a valve plate 2212. The valve body 2211 is located in the airflow channel 214. The outer periphery of the valve body 2211 fits the inner wall of the sealed airflow channel 214. The valve body 2211 has a through opening 2213, so that the airflow can flow through the opening 2213 of the valve body 2211; the valve plate 2212 closes the opening 2213. When the external airflow flows toward the liquid storage chamber 211, the valve plate 2212 unidirectionally opens the opening 2213, so that the pressure difference between the inside and outside of the liquid storage chamber 211 is balanced, effectively ensuring the efficiency of the auxiliary oil tank 20 in conveying the liquid aerosol generating matrix to the aerosol generating device 10, ensuring the liquid supply to the atomizing part in the aerosol generating device 10, so that the mouthfeel of the aerosol generated by atomization is stable. At the same time, when the liquid aerosol generating matrix in the liquid storage chamber 211 flows to the outside through the airflow channel 214, the valve plate 2212 closes the opening 2213 to avoid leakage. The valve plate 2212 can be made of elastic materials such as rubber to ensure that the valve plate 2212 recovers after opening the opening 2213 and continues to close the opening 2213; the valve plate 2212 is configured as a single piece or multiple pieces; when the opening 2213 is closed by a single valve plate 2212, part of the valve plate 2212 is elastically connected to the valve body 2211, and the valve plate 2212 remains covering the opening 2213 under the action of elastic force; when the opening 2213 is closed by a combination of multiple valve plates 2212, the opposite ends of all the valve plates 2212 are elastically connected to the valve body 2211, and the other ends of all the valve plates 2212 are close to each other to enclose and close the opening 2213, and all the valve plates 2212 remain covering the opening 2213 under the action of elastic force.

[0045] Please continue reading Figure 7Furthermore, an end of the air flow channel 214 close to the liquid storage chamber 211 is provided with a sealing surface 2141 facing the liquid storage chamber 211, and the sealing surface 2141 is arranged around the air flow channel 214; the one-way valve 221 includes a sealing plug 2214 and a spring 2215, the spring 2215 is connected to the liquid storage part 21, the sealing plug 2214 is connected to the end of the spring 2215 away from the liquid storage chamber 211, and under the action of the elastic force of the spring 2215, it abuts against the sealing surface 2141 to close the air flow channel 214. Since the sealing surface 2141 faces the liquid storage chamber 211, the sealing plug 2214 abuts against the sealing surface 2141 under the elastic force of the spring 2215, that is, the elastic force acting on the sealing plug 2214 is from the inside of the liquid storage chamber 211 toward the inside and outside of the liquid storage chamber 211. In the process of the airflow entering the liquid storage chamber 211 through the airflow channel 214, the sealing plug 2214 is pushed away from the sealing surface 2141, so that the airflow inside and outside the liquid storage chamber 211 is smooth, so that the liquid aerosol generating matrix in the liquid storage chamber 211 flows out from the connecting portion 212, and the external airflow flows into the liquid storage chamber 211 through the airflow channel 214 and the sealing surface 2141, so as to ensure that the liquid in the liquid storage chamber 211 is The external pressure difference is balanced, which effectively ensures the efficiency of the auxiliary oil tank 20 in delivering the liquid aerosol generating matrix to the aerosol generating device 10, and realizes the continuous and stable liquid supply of the auxiliary oil tank 20 to the atomizing part of the aerosol generating device 10, so that the aerosol generated by atomization has a stable taste; when the liquid aerosol generating matrix in the liquid storage chamber 211 flows into the position where the sealing plug 2214 is located, the sealing plug 2214 fits the sealing surface 2141 under the dual action of the liquid aerosol generating matrix and the spring 2215, ensuring the sealing effect of the airflow channel 214, effectively preventing the liquid aerosol generating matrix in the liquid storage chamber 211 from flowing to the outside through the airflow channel 214, and avoiding leakage. The spring 2215 can adopt a spring 2215 with weak elastic force to ensure that the external airflow flows smoothly into the liquid storage chamber 211 through the airflow channel 214. The sealing surface 2141 can be a conical surface, and the side of the sealing plug 2214 that abuts against the sealing surface 2141 is set to a spherical surface. The abutment between the spherical surface and the conical surface is conducive to improving the sealing effect of the sealing plug 2214 on the airflow channel 214.

[0046] See also Figure 8 and Figure 9, in yet another embodiment, the air flow channel 214 is located at the top of the liquid storage member 21. The air flow channel 214 communicates the inside and outside of the liquid storage cavity 211 and can serve as a liquid injection hole, facilitating the replenishment of the liquid aerosol generating matrix into the liquid storage cavity 211 during the production process or user use, which is conducive to improving the convenience of production and extending the service life of the secondary oil storage chamber 20. The air pressure balance structure 22 includes a sealing plug 222. The sealing plug 222 is located in the air flow channel 214, and the outer periphery of the sealing plug 222 fits and seals the inner wall of the air flow channel 214 to ensure that the liquid aerosol generating matrix in the liquid storage cavity 211 does not leak out through the air flow channel 214 after the liquid injection is completed. The sealing plug 222 is provided with air permeable micropores 2221. Both ends of the air permeable micropores 2221 communicate the inside and outside of the liquid storage cavity 211. The aperture of the air permeable micropores 2221 is small. For example, the aperture specification of the smallest section of the air permeable micropores 2221 is about 2 mm, so that the air flows smoothly through the air permeable micropores 2221, blocking the liquid aerosol generating matrix from flowing through the air permeable micropores 2221, ensuring the pressure difference balance between the liquid storage cavity 211 and the outside, and preventing the leakage of the aerosol generating matrix. The sealing plug 222 can be made of elastic materials such as plastic, silica gel or rubber.

[0047] Please continue to refer to Figure 8 and Figure 9 , further, the air permeable micropores 2221 are in a conical hole shape, and the aperture of the air permeable micropores 2221 gradually decreases in the direction close to the liquid storage cavity 211. The lower end of the conical hole is small and the upper end is large. The conical hole can be used to balance the air pressure between the liquid storage cavity 211 and the outside, ensure the smooth liquid supply of the secondary oil storage chamber 20 to the aerosol generating device 10, so that the air permeable micropores 2221 have the function of a one-way valve 221, blocking the liquid aerosol generating matrix in the liquid storage cavity 211 from flowing from the small end of the air permeable micropores 2221 to the outside of the liquid storage cavity 211.

[0048] In summary, the present application provides a secondary oil storage chamber and an aerosol generating system. The secondary oil storage chamber is provided with an air flow channel, and the air flow channel communicates the liquid storage cavity and the outside, realizing the connection between the inside and outside of the liquid storage cavity; the air pressure balance structure is embedded and installed in the air flow channel, and the air pressure balance structure is configured to allow the air flow in the air flow channel to flow unidirectionally from the outside of the liquid storage cavity into the liquid storage cavity, so that while the liquid aerosol generating matrix in the liquid storage cavity flows out from the communicating part, the external air flows into the liquid storage cavity through the air flow channel, making the pressure difference balance between the inside and outside of the liquid storage cavity, effectively ensuring the efficiency of the secondary oil storage chamber in delivering the liquid aerosol generating matrix to the aerosol generating device, ensuring the stable and continuous liquid supply to the aerosol generating device, and making the taste of the atomized aerosol stable.

[0049] It should be understood that the application of the present application is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present application.

Claims

1. A secondary oil reservoir is applied to an aerosol generating system, the aerosol generating system includes an aerosol generating device, and the secondary oil reservoir is used to provide an aerosol generating matrix to the aerosol generating device, characterized in that, The auxiliary oil tank comprises: A liquid storage element, the liquid storage element having a liquid storage cavity and an air flow channel, the air flow channel communicating with the liquid storage cavity and the outside of the liquid storage cavity; and An air pressure balance structure, wherein the air pressure balance structure is embedded in the air flow channel; Wherein, the air pressure balance structure is configured to allow the airflow in the airflow channel to flow unidirectionally from the outside of the liquid storage cavity to the inside of the liquid storage cavity.

2. The secondary fuel tank according to claim 1, characterized in that, The air pressure balance structure includes a one-way valve, which is embedded in the air flow channel; the one-way valve is configured to open the air flow channel when air flows from the outside of the liquid storage cavity to the inside of the liquid storage cavity in the air flow channel, and to close the air flow channel when liquid flows from the inside of the liquid storage cavity to the outside of the liquid storage cavity in the air flow channel.

3. The secondary fuel tank according to claim 2, wherein The one-way valve includes a valve body and a valve plate; the valve body is located in the airflow channel, the outer periphery of the valve body fits and seals the inner wall of the airflow channel, and the valve body has a through opening; the valve plate closes the opening, and the valve plate opens the opening in one direction when the external airflow flows toward the liquid storage chamber.

4. The auxiliary oil tank according to claim 2, wherein One end of the airflow channel close to the liquid storage chamber is provided with a sealing surface facing the liquid storage chamber, and the sealing surface is arranged around the airflow channel; The one-way valve includes a sealing plug and a spring; the spring is connected to the liquid storage component; the sealing plug is connected to one end of the spring away from the liquid storage chamber, and abuts against the sealing surface under the elastic force of the spring to close the air flow channel.

5. The auxiliary fuel tank according to claim 1, characterized in that, The air flow channel is located at the top of the liquid storage component; the air pressure balance structure includes a sealing plug, which is located in the air flow channel, and the outer periphery of the sealing plug fits and seals the inner wall of the air flow channel; the sealing plug is provided with air-permeable micropores, and the two ends of the air-permeable micropores are connected to the liquid storage cavity and the outside of the liquid storage cavity.

6. The auxiliary oil tank according to claim 5, wherein, The air-permeable micropores are in a cone shape, and the apertures of the air-permeable micropores gradually decrease in a direction approaching the liquid storage chamber.

7. The auxiliary oil tank according to claim 1, characterized in that The liquid storage component includes an upper cover and a bottom shell; the top end of the bottom shell is open; the upper cover is detachably connected to the bottom shell and closes the top end of the bottom shell, and the upper cover and the bottom shell are surrounded to form the liquid storage cavity; the air pressure balance structure is embedded in the upper cover.

8. An aerosol generating system, characterized in that, include: Aerosol generating devices; as well as The auxiliary oil tank as described in any one of claims 1 to 7, wherein the auxiliary oil tank is used to provide an aerosol generating substrate to the aerosol generating device.

9. The aerosol generating system according to claim 8, wherein, A fixing portion is provided at the top of the liquid storage component on a side close to the aerosol generating device, and the fixing portion is detachably connected to the aerosol generating device.

10. The aerosol generating system according to claim 8, wherein A connecting portion is provided at the bottom end of the liquid storage component, and a docking portion is provided at the bottom end of the aerosol generating device; one of the docking portion and the connecting portion is provided with a cylindrical protrusion, and the other is provided with a groove, and the cylindrical protrusion is plugged into the groove to connect the liquid storage chamber and the aerosol generating device.

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