Aerosol generating substrate, aerosol generating device and system

Abstract

The present application provides an aerosol-generating substrate, an aerosol generating device, and a system. The aerosol-generating substrate includes an aerosol substrate portion. An aerosol substrate is provided within the aerosol substrate portion. The aerosol substrate portion also includes an insert portion. The insert portion is used to insert a resonating rod of an aerosol generating device and is disposed at a distance from the resonating rod. The resonating rod can be inserted into the insert portion. The aerosol substrate at each location within the aerosol substrate portion can be uniformly heated by microwaves transmitted from the resonating rod, which is advantageous in improving the utilization rate of the aerosol substrate.

Description

[Technical field]

[0001] The present application is in the field of electronic atomization, and more particularly, to aerosol-generating substrates, aerosol-generating devices and systems. [Background technology]

[0002] The Heat Not Burning (HNB) device is an electronic device that heats an aerosol-generating substrate (treated plant leaf products) without burning it. The heating device heats the aerosol-generating substrate to a high temperature that can generate aerosols but does not reach a point of combustion, allowing the aerosol-generating substrate to generate the aerosol desired by the user, on the premise of non-combustion.

[0003] Currently, non-combustion and heating devices on the market mainly adopt the resistance heating method. That is, the aerosol generating substrate is heated by inserting a central heating tip or a heating needle into the substrate from the center. Such devices require preheating before use, so the waiting time is long and inhalation and stopping cannot be performed freely. In addition, the aerosol generating substrate is unevenly carbonized and the baking of the aerosol generating substrate is insufficient, so the utilization rate is low. In addition, the heating tip of the HNB device is prone to causing dirt on the aerosol generating substrate removal device and the heating tip base, making cleaning difficult. In addition, the temperature of the aerosol generating substrate in the part in contact with the heating element rises too much, causing partial decomposition, which releases substances harmful to the human body. Therefore, instead of the resistance heating method, microwave heating technology is gradually becoming a new heating method. Microwave heating technology has the characteristics of being efficient, rapid, selective and without delay in heating, and has a heating effect only on materials with specific dielectric properties. The application advantages of adopting atomization by microwave heating include the following:

[0004] a. Microwave heating is radiation heating, not heat transfer, so it is possible to achieve immediate inhalation and immediate stopping.

[0005] b. Since it does not have a heat generating tip, there is no problem with chip breakage or cleaning of the heat generating tip.

[0006] c. The utilization rate of the aerosol-generating substrate is high, and the consistency of the draw is high, resulting in a draw that is more similar to that of a cigarette.

[0007] However, while the position of the aerosol-generating substrate close to the microwave emitting end can be heated uniformly, the heating effect is inferior in the position of the aerosol-generating substrate away from the microwave emitting end, resulting in a low utilization rate of the aerosol-generating substrate. Summary of the Invention [Problem to be solved by the invention]

[0008] The present application aims to solve one of the technical problems existing in the prior art or related art. [Means for solving the problem]

[0009] In view of the above, in a first aspect, the present application provides an aerosol-generating substrate, the aerosol-generating substrate comprising an aerosol substrate portion, the aerosol substrate being provided within the aerosol substrate portion, and the aerosol substrate portion being provided with an insert portion, the insert portion being adapted for inserting a resonating rod of an aerosol-generating device and being disposed at a distance from the resonating rod.

[0010] An aerosol substrate is provided within the aerosol substrate section. When microwaves act on the aerosol substrate, the aerosol substrate is heated by the action of the microwaves, enabling the aerosol substrate to generate an aerosol. An insertion section is provided in the aerosol substrate section, and a resonant rod can be inserted into the insertion section. Since the gaps between the resonant rod and both ends of the aerosol substrate section are all small, it is difficult for a portion of the aerosol substrate section to have a large gap with the resonant rod. In other words, the aerosol substrate at each location within the aerosol substrate section can be uniformly heated by the microwaves transmitted from the resonant rod, which is advantageous for improving the utilization rate of the aerosol substrate.

[0011] The resonant rod is spaced apart from the aerosol substrate to avoid contact between the resonant rod and the aerosol substrate, which prevents the resonant rod from becoming dirty and reduces the amount of cleaning required for the resonant rod.

[0012] In addition, the aerosol-generating substrate in the above technical solution provided in accordance with the present application may further have the following technical features:

[0013] In a possible design, the aerosol substrate portion further comprises a separator portion, the aerosol substrate being located within the separator portion, the separator portion being used to separate the aerosol substrate from the resonating rod.

[0014] In this design, the aerosol substrate part includes an aerosol substrate and an isolating part, the aerosol substrate is located in the isolating part, and the isolating part encloses the aerosol substrate, thereby avoiding contact between the aerosol substrate and the resonating rod, and since the aerosol substrate becomes hot when heated, the aerosol substrate and the resonating rod are isolated from each other to prevent the aerosol substrate from sticking to the resonating rod, and the cleaning work for the resonating rod is reduced.

[0015] Naturally, in order to avoid adhesion between the isolating part and the resonating rod, the isolating part must be made of a material that is unlikely to interact with microwaves. Also, the isolating part must be installed so as to have a supporting effect. Therefore, the isolating part may be made of at least one of highly breathable paperboard, bleached kraft paper, polytetrafluoroethylene film, porous ceramic sheet, synthetic resin, chemical fiber product, polylactic acid film, aluminum foil, and nonwoven fabric.

[0016] In a possible design, the interposer passes through the aerosol substrate.

[0017] In this design, the insertion part is limited to penetrating the aerosol substrate part. The resonating rod needs to be inserted into the aerosol substrate part. Therefore, if a penetrating section is directly installed in the aerosol substrate part, the processing of the insertion part can be improved. In addition, since the resonating rod penetrates the aerosol substrate part, the size of the resonating rod in the insertion part can be easily adjusted. The insertion size of the resonating rod in the insertion part can be changed according to the thickness of the aerosol substrate part. In this way, the aerosol substrate in the aerosol substrate part can be uniformly heated, which improves the heating effect on the aerosol substrate and improves the utilization rate of the aerosol substrate.

[0018] In a possible design, the aerosol substrate further comprises a position restriction portion disposed within the insert portion and adapted to abut against the end of the resonating rod.

[0019] In this design, a position restricting part is installed in the housing part, and the position restricting part can restrict the position of the resonant rod. Specifically, the position restricting part restricts the maximum insertion size of the resonant rod into the insertion part. The resonant rod can be inserted into the insertion part to improve the heating effect on the aerosol substrate, but the longer the insertion length, the better the heating effect. It is necessary that the microwaves transmitted from the end of the resonant rod can act uniformly on the aerosol substrate at each point in the aerosol substrate part. If the resonant rod penetrates the insertion part, a very large amount of microwaves transmitted from the end of the resonant rod cannot act on the aerosol substrate, and the microwaves are wasted. In addition, if the end of the resonant rod penetrates the insertion part, a problem occurs in that the distance between the side of the aerosol substrate part facing the resonant cavity and the end of the resonant rod becomes large. In this case, the heating effect of the end of the resonant rod on the side of the aerosol substrate part facing the resonant cavity is reduced. Therefore, in order to ensure that the resonant rod can heat the aerosol substrate uniformly at each location, the maximum insertion length of the resonant rod into the insertion part is restricted by the position restricting part, thereby ensuring the heating effect on the aerosol substrate and improving the utilization rate of the aerosol substrate.

[0020] In a possible design, there are at least two position restriction portions, the at least two position restriction portions being spaced apart in the circumferential direction of the insertion part, or the position restriction portion is annular in structure.

[0021] In this design, the structure of the position restricting portion is limited. At least two position restricting portions are required, and the at least two position restricting portions are arranged at intervals in the circumferential direction of the insertion portion. The at least two position restricting portions can restrict the position of the end of the resonating rod. Since the at least two position restricting portions are divided at intervals, the end of the resonating rod can receive a uniform blocking force. This avoids the problem of displacement of the resonating rod and the aerosol-generating substrate, and reduces the damage rate of the aerosol-generating substrate and the resonating rod, thereby improving the user experience of the aerosol generating device.

[0022] Of course, the position restriction portion may have a ring structure. The position restriction portion having a ring structure can also stably restrict the position of the end of the resonator rod, and the resonator rod and the aerosol generator can be prevented from being displaced from each other.

[0023] In a second aspect, the present application provides an aerosol generating device, the aerosol generating device including a housing in which a resonant cavity is provided, a microwave assembly provided in the housing and used to introduce microwaves into the resonant cavity, and a resonant rod having a first end connected to a bottom wall of the resonant cavity and a second end facing an opening of the resonant cavity and used to be inserted into an aerosol-generating substrate, the resonant rod and the aerosol-generating substrate being spaced apart from each other when the resonant rod is inserted into the aerosol-generating substrate.

[0024] The microwave assembly can generate microwaves. A resonant cavity is provided in the housing, and the microwave assembly can introduce microwaves into the resonant cavity. The resonant rod is mounted in the resonant cavity. The diameter of the resonant rod is smaller than the diameter of the resonant cavity. Thus, a gap is provided between the outer wall of the resonant rod and the inner wall of the resonant cavity, and microwaves can be transmitted within the gap. The resonant rod can be a conductor. The resonant rod can be made of a metal material. For example, the resonant rod is made of copper, aluminum, iron, or an alloy thereof. The resonant rod is used to transmit microwaves and improve the transmission speed of microwaves. Since microwaves are less likely to be attenuated during transmission within the resonant cavity, the effect of the microwaves acting on the aerosol-generating substrate is improved. This allows the microwaves to be efficiently and quickly acted on the aerosol-generating substrate, which is advantageous in meeting the needs of users. The aerosol-generating substrate also includes an aerosol substrate portion. An aerosol substrate is provided within the aerosol substrate portion. When microwaves act on the aerosol substrate, the aerosol substrate is heated by the action of the microwaves, and the aerosol substrate can generate an aerosol. The resonant rod can be inserted into the aerosol substrate section. Since the gaps between the resonant rod and both ends of the aerosol substrate section are all small, it is difficult for a portion of the aerosol substrate section to have a large gap with the resonant rod. In other words, the aerosol substrate at each location in the aerosol substrate section can be uniformly heated by the microwaves transmitted from the resonant rod, which is advantageous for improving the utilization rate of the aerosol substrate.

[0025] The resonant rod is spaced apart from the aerosol substrate to avoid contact between the resonant rod and the aerosol substrate, which prevents the resonant rod from becoming dirty and reduces the amount of cleaning required for the resonant rod.

[0026] In a possible design, the inner wall located at the opening in the resonant cavity is in contact with the aerosol-generating substrate.

[0027] In this design, an opening is provided in the resonant cavity. The aerosol-generating substrate can be inserted into the resonant cavity through the opening of the resonant cavity. The inner wall located at the opening of the resonant cavity contacts the aerosol-generating substrate, so that the inner wall of the opening can positionally regulate the aerosol-generating substrate. Specifically, the opening of the resonant cavity regulates the position of the aerosol-generating substrate. In addition, when the resonant rod is inserted into the insertion portion, the resonant rod can also positionally regulate the aerosol-generating substrate. That is, the inner wall of the opening and the resonant rod positionally regulate the aerosol-generating substrate at two positions. This allows the aerosol-generating substrate to be stably attached to the housing, which prevents the aerosol-generating substrate from wobbling in the resonant cavity, and improves the stability of the aerosol generating device when used by a user.

[0028] In a possible design, the aerosol generating device further comprises a fixed base mounted to the housing, the fixed base being located within the resonant cavity, the fixed base being provided with a mounting cavity adapted for insertion of a portion of the aerosol generating substrate.

[0029] In this design, a fixed base is provided on the housing. The fixed base is provided with a mounting cavity, and a portion of the aerosol-generating substrate can be inserted into the mounting cavity. Since the aerosol-generating substrate can be mounted on the fixed base, the aerosol-generating substrate is less likely to wobble relative to the housing, and the aerosol generating device is more stable when used by a user. In addition, since the fixed base is installed in the resonant cavity, the overall length of the housing is reduced. This is advantageous for realizing a compact aerosol generating device, and is convenient for a user to carry and store the aerosol generating device.

[0030] Generally, the aerosol-generating substrate has a cylindrical structure, and therefore the mounting cavity may be a cylindrical hollow body. In addition, the radial size of the aerosol-generating substrate is equal to or smaller than the radial size of the mounting cavity. Aerosol-generating substrates This makes it difficult for the aerosol generating substrate to come off the fixed base, Aerosol-generating substrates The stability of the mounting is reliably guaranteed.

[0031] When the aerosol-generating substrate is attached by a fixed base, the user only needs to clean the fixed base after using the aerosol-generating substrate, which is advantageous in reducing the amount of work required for the user to clean the housing.

[0032] In a possible design, the aerosol generating device further comprises a protrusion provided on the bottom wall of the mounting cavity and adapted to be inserted into the insert of the aerosol generating substrate, the protrusion having a receiving portion, and the second end of the resonating rod being inserted into the receiving portion.

[0033] In this design, a protrusion is provided on the bottom wall of the mounting cavity. The protrusion protrudes from the bottom wall of the mounting cavity in a direction away from the resonant rod. A receiving portion is provided on the protrusion, and the second end of the resonant rod can be inserted into the receiving portion. The protrusion can also be inserted into the insertion portion. Thus, the protrusion is provided between the insertion portion and the resonant rod, and the protrusion isolates the insertion portion and the resonant rod. This prevents the resonant rod from contacting the aerosol-generating substrate, thus avoiding damage to the resonant rod and improving the structural stability of the aerosol generating device. In addition, the fixed base is provided to protect the resonant rod, so that dirt can only enter the fixed base and cannot enter the resonant cavity. This further prevents the resonant rod from becoming dirty, thereby reducing the user's cleaning workload.

[0034] In a possible design, the fixed base is removably connected to the housing.

[0035] In this design, the connection relationship between the fixed base and the housing is limited. The fixed base can be attached to or detached from the housing. After the aerosol generating device is used, the fixed base can be detached from the housing, so that the fixed base can be easily washed separately, which is convenient for the user to clean the fixed base. This is advantageous for improving the convenience of the aerosol generating device when used by the user.

[0036] For example, the fixed base may be attached to the housing by providing mounting holes in the fixed base and the housing and inserting a locking member such as a bolt through the mounting hole. Also, a hook assembly may be provided on the fixed base and the housing, and the fixed base may be locked to the housing by the hook assembly.

[0037] In a third aspect, the present application provides an aerosol generation system, the aerosol generation system including a housing in which a resonant cavity is provided, a microwave assembly provided in the housing and used to introduce microwaves into the resonant cavity, a resonant rod having a first end connected to a bottom wall of the resonant cavity and a second end facing an opening of the resonant cavity, and an aerosol generation substrate including an aerosol substrate portion. The aerosol substrate portion is provided with an aerosol substrate. The aerosol substrate portion extends from the opening of the resonant cavity into the resonant cavity. The aerosol substrate portion is provided with an insert portion, and the second end of the resonant rod is inserted into the insert portion. The second end of the resonant rod and the aerosol substrate are spaced apart.

[0038] The aerosol generating device provided in the present application has a resonant cavity installed in a housing, and a microwave assembly can be mounted on the housing. The microwave assembly can generate microwaves. A resonant cavity is installed in the housing, and the microwave assembly can introduce microwaves into the resonant cavity. A resonant rod is mounted in the resonant cavity. The diameter of the resonant rod is smaller than the diameter of the resonant cavity. Thus, a gap is provided between the outer wall of the resonant rod and the inner wall of the resonant cavity, and microwaves can be transmitted within the gap. The resonant rod can be a conductor. The resonant rod can be made of a metal material. For example, the resonant rod is made of copper, aluminum, iron, etc., or alloys thereof. The resonant rod is used to transmit microwaves and improve the transmission speed of microwaves. Since microwaves are less likely to be attenuated during transmission in the resonant cavity, the effect of the microwaves acting on the aerosol-generating substrate is improved. This allows the microwaves to be efficiently and quickly acted on the aerosol-generating substrate, which is advantageous in meeting the usage needs of users. Furthermore, the aerosol-generating substrate includes an aerosol substrate portion. An aerosol substrate is provided within the aerosol substrate section. When microwaves act on the aerosol substrate, the aerosol substrate is heated by the action of the microwaves, enabling the aerosol substrate to generate an aerosol. An insertion section is provided in the aerosol substrate section, and a resonant rod can be inserted into the insertion section. Since the gaps between the resonant rod and both ends of the aerosol substrate section are all small, it is difficult for a portion of the aerosol substrate section to have a large gap with the resonant rod. In other words, the aerosol substrate at each location within the aerosol substrate section can be uniformly heated by the microwaves transmitted from the resonant rod, which is advantageous for improving the utilization rate of the aerosol substrate.

[0039] The resonant rod is spaced apart from the aerosol substrate to avoid contact between the resonant rod and the aerosol substrate, which prevents the resonant rod from becoming dirty and reduces the amount of cleaning required for the resonant rod.

[0040] In a possible design, the aerosol-generating system further includes a fixed base mounted to the housing, the fixed base being located within the resonant cavity, the fixed base being provided with a mounting cavity, the mounting cavity being adapted to receive a portion of the aerosol-generating substrate.

[0041] In this design, a fixed base is provided on the housing. The fixed base is provided with a mounting cavity, and a portion of the aerosol-generating substrate can be inserted into the mounting cavity. Since the aerosol-generating substrate can be mounted on the fixed base, the aerosol-generating substrate is less likely to wobble relative to the housing, and the aerosol generating device is more stable when used by a user. In addition, since the fixed base is installed in the resonant cavity, the overall length of the housing is reduced. This is advantageous for realizing a compact aerosol generating device, and is convenient for a user to carry and store the aerosol generating device.

[0042] Generally, the aerosol-generating substrate has a cylindrical structure, and therefore the mounting cavity may be a cylindrical hollow body. In addition, the radial size of the aerosol-generating substrate is equal to or smaller than the radial size of the mounting cavity. Aerosol-generating substrates This makes it difficult for the aerosol generating substrate to come off the fixed base, Aerosol-generating substrates The stability of the mounting is reliably guaranteed.

[0043] When the aerosol-generating substrate is attached by the fixed base, the user only needs to clean the fixed base after using the aerosol-generating substrate, which is advantageous in reducing the amount of work required for the user to clean the housing.

[0044] The height of the aerosol substrate is equal to or less than the height of the fixed base. The height of the aerosol substrate is between 3 mm and 25 mm. The diameter of the aerosol substrate is greater than the diameter of the resonating rod. The diameter of the aerosol substrate is between 3 mm and 20 mm.

[0045] The bottom wall of the mounting cavity is provided with a protruding structure, which aims to maintain smooth airflow during inhalation and reduce suction resistance.

[0046] The fixed base and the resonant cavity are arranged coaxially, which allows the resonant rod to be arranged at the center of the resonant cavity, thereby improving the microwave transmission effect of the resonant rod.

[0047] The fixed base is sealed and free of pores except for an opening at its top end through which the aerosol-generating substrate is inserted.

[0048] In order to avoid the effect of microwaves on the fixed base, the material of the fixed base must be a low dielectric loss material, such as polyetheretherketone, polytetrafluoroethylene, microwave transparent ceramics, glass, aluminum oxide, zirconia or silicon oxide.

[0049] In a possible design, the height of the mounting cavity is greater than the length of the aerosol substrate.

[0050] In this design, the relationship between the height of the mounting cavity and the length of the aerosol substrate section is limited. When the fixed base is located within the resonant cavity and the height of the mounting cavity is greater than the length of the aerosol substrate section, the entire aerosol substrate section is located within the resonant cavity, and the entire aerosol substrate is also located within the resonant cavity. This makes it difficult for the heat generated in the aerosol substrate to dissipate when the aerosol substrate is heated by microwaves, so that the heating rate of the aerosol substrate can be accelerated, which is favorable for realizing the instantaneous inhalation and instantaneous puff function. In addition, the speed of the aerosol generated by the aerosol substrate is accelerated, which is favorable for improving the user experience of the aerosol generating device.

[0051] In a possible design, if the insertion length of the resonator rod into the insertion portion is L and the length of the aerosol substrate portion is H, then L≦1 / 3H is satisfied.

[0052] In this design, the maximum length of the resonant rod that can be inserted into the insertion part is limited. Specifically, based on the insertion length of the resonant rod restricted by the position restriction part or the insertion length of the resonant rod restricted by the protruding part, if the insertion length of the resonant rod is too large, a problem occurs that a large amount of microwaves transmitted from the end of the resonant rod cannot act on the aerosol substrate. Therefore, in order to ensure that the resonant rod can uniformly heat the aerosol substrate at each point, the insertion length of the resonant rod into the insertion part is limited to less than one-third of the thickness of the aerosol substrate part. This ensures the heating effect on the aerosol substrate and improves the utilization rate of the aerosol substrate.

[0053] In one possible design, the microwave assembly includes a microwave inlet located on a side wall of the housing, and a microwave source coupled to the microwave inlet. Microwaves output from the microwave source are introduced into the resonant cavity through the microwave inlet. The microwaves are then transmitted in a direction from the first end of the resonant rod to the second end of the resonant rod.

[0054] In this design, a microwave source can generate microwaves, and the microwaves are introduced into the resonant cavity through the microwave introduction part. The microwave introduction part can change the introduction position of the microwave in the resonant cavity, so as to avoid the components in the resonant cavity and ensure that the microwaves are transmitted stably from the first end of the resonant rod to the second end of the resonant rod.

[0055] In a possible design, the microwave introduction section includes a first introduction member installed on a side wall of the housing, and a second introduction member having a first end connected to the first introduction member, the second introduction member being located within the resonant cavity, and a second end of the second introduction member facing a bottom wall of the resonant cavity.

[0056] In this design, the microwave introduction section is composed of two parts, a first introduction member and a second introduction member. The first introduction member is installed on the side wall of the housing. The first introduction member is connected to a microwave emission source. Thus, the microwaves generated by the microwave emission source are introduced into the resonant cavity through the first introduction member. The second introduction member can change the propagation direction of the microwaves. Since the second introduction member faces the bottom wall of the resonant cavity, the microwaves are transmitted to the bottom wall of the resonant cavity. The microwaves at the bottom wall of the resonant cavity are transmitted to the aerosol substrate through the resonant rod. By installing the second introduction member so as to face the bottom wall of the resonant cavity, it is ensured that the microwave transmission can start from the first end of the resonant rod. When the first introduction member and the second introduction member transmit the microwaves, a direction change occurs in the microwaves during transmission. By installing them in this way, most of the microwaves transmitted by the microwave introduction section can be introduced into the resonant cavity, and the introduction efficiency of the microwaves is improved, so that the microwaves can be efficiently applied to the aerosol substrate.

[0057] In a possible design, the aerosol generating device further comprises a recess disposed in a bottom wall of the resonant cavity, the second end of the second introduction member being located within the recess.

[0058] In this design, the second end of the second introduction member is located in the recess, which can protect the end of the second introduction member, thereby preventing the end of the second introduction member from contacting other components, and improving the structural stability of the aerosol generating device.

[0059] In a possible design, the microwave introduction section includes a first introduction member disposed on a side wall of the housing, and a second introduction member having a first end connected to the first introduction member, the second introduction member being located within the resonant cavity, and a second end of the second introduction member facing the resonant rod.

[0060] In this design, the microwave introduction section is composed of two parts, a first introduction member and a second introduction member. The first introduction member is installed on the side wall of the housing. The first introduction member is also connected to a microwave emission source. As a result, microwaves generated by the microwave emission source are introduced into the resonant cavity through the first introduction member. The second introduction member faces the resonant rod. That is, the second introduction member is parallel to the bottom wall of the resonant cavity. By installing them in this way, most of the microwaves transmitted by the microwave introduction section can be introduced into the resonant cavity, and the introduction efficiency of the microwaves is improved, so that the microwaves can be efficiently applied to the aerosol substrate.

[0061] Additional aspects and advantages of the present application will be set forth in part in the description that follows, and in part will be apparent from, and may be learned by, the practice of the present application.

[0062] The above and / or additional aspects and advantages of the present application will become apparent and will be readily understood from the following detailed description of the embodiments taken in conjunction with the drawings. [Brief description of the drawings]

[0063] [Figure 1] FIG. 1 shows a schematic structural diagram of an aerosol generating system according to an embodiment of the present application. [Diagram 2] FIG. 2 shows a schematic structural diagram 2 of an aerosol generating system in an embodiment of the present application. [Diagram 3] FIG. 3 shows a schematic structural diagram 3 of an aerosol generating system in an embodiment of the present application. [Figure 4] FIG. 4 shows a schematic structural diagram 4 of an aerosol generating system in an embodiment of the present application. [Diagram 5] FIG. 5 shows a schematic structural diagram of an aerosol generating system in an embodiment of the present application. [Figure 6] FIG. 6 shows a schematic diagram of the relationship between frequency and return loss in an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0064] In order to make the above objects, features and advantages of the present application more clearly understandable, the present application will be described in more detail below in combination with drawings and specific embodiments. It should be noted that, if not inconsistent, the embodiments and features of the present application may be combined with each other.

[0065] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be implemented in other ways different from those described herein, and therefore the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0066] Hereinafter, an aerosol-generating substrate, an aerosol-generating device, and an aerosol-generating system provided according to some embodiments of the present application will be described with reference to Figs. 1 to 6.

[0067] 1 and 2 in combination, some embodiments of the present application provide an aerosol-generating substrate 300 including an aerosol substrate portion 310. An aerosol substrate 311 is provided within the aerosol substrate portion 310. The aerosol substrate portion 310 also includes an insert portion 360. The insert portion 360 is used to insert a resonating rod 400 of an aerosol generating device and is spaced apart from the resonating rod 400.

[0068] An aerosol substrate 311 is provided in the aerosol substrate section 310. When microwaves act on the aerosol substrate 311, the aerosol substrate 311 is heated by the action of the microwaves, and the aerosol substrate 311 can generate an aerosol. An insertion section 360 is provided in the aerosol substrate section 310, and the resonant rod 400 can be inserted into the insertion section 360. Since the gaps between the resonant rod 400 and both ends of the aerosol substrate section 310 are both small, it is difficult for a portion of the aerosol substrate section 310 where the gap between the resonant rod 400 and the aerosol substrate 311 is large to occur. That is, the aerosol substrate 311 at each location in the aerosol substrate section 310 can be uniformly heated by the microwaves transmitted from the resonant rod 400, which is advantageous in improving the utilization rate of the aerosol substrate 311.

[0069] The resonant rod 400 is spaced apart from the aerosol substrate 310 to avoid contact between the resonant rod 400 and the aerosol substrate 311. This prevents the resonant rod 400 from becoming dirty, and reduces the amount of cleaning work required for the resonant rod 400.

[0070] The resonant rod 400 is a hollow or solid structure, and has a conductive outer wall. To this end, the resonant rod 400 may be made of a metal material or other highly conductive material, or the outer surface of a non-metallic material may be plated with a thin metal layer, such as gold, silver, or copper. The resonant rod 400 is electrically connected to the bottom of the resonant cavity 110.

[0071] The inner wall of the resonant cavity 110 is conductive. To achieve this purpose, the cavity body may be made of a conductive material (preferably metal) or the inside of the resonant cavity 110 may have a conductive coating layer, such as gold-plated, silver-plated or copper-plated.

[0072] In this embodiment, the aerosol-generating substrate 300 further includes a hollow section 320, a temperature-reducing section 330, and a filter section 340. The aerosol substrate section 310 is located at the end. The aerosol substrate section 310 is connected to the hollow section 320. The hollow section 320 is used to buffer the aerosol so that the aerosol can flow gently. The hollow section 320 is further connected to the temperature-reducing section 330. The temperature-reducing section 330 is used to reduce the temperature of the aerosol so that the user's comfort is improved. The filter section 340 is connected to the temperature-reducing section 330. The filter section 340 is used to filter the aerosol. The aerosol-generating substrate 300 further includes a housing. The housing is used to enclose the aerosol substrate section 310, the hollow section 320, the temperature-reducing section 330, and the filter section 340. The housing is one of a supporting paperboard tube, a polylactic acid material tube, a protein material tube, a vegetable rubber-based material tube, or a cellulose derivative material tube.

[0073] In this embodiment, the aerosol substrate 311 is made from tobacco leaves or herbs and is prepared into different forms of substrates, such as granules, sheets, powdered pieces, threads, pastes, crepes, porous aerogels, or capsules.

[0074] The material of the temperature-reducing section 330 is selected from one of polylactic acid / aluminum foil composite film, paper filter rod, polylactic acid nonwoven fabric, polylactic acid granules, polylactic acid tow braided tube, sawtooth polylactic acid folded film, and temperature-reducing activated carbon composite material.

[0075] The filter section 340 is one of polylactic acid tow or acetate fiber tow.

[0076] 1 and 2, in a possible embodiment, the aerosol substrate portion 310 further includes an isolation portion 312. The aerosol substrate 311 is located within the isolation portion 312. The isolation portion 312 is used to isolate the aerosol substrate 311 and the resonant rod 400.

[0077] In this embodiment, the aerosol substrate part 310 includes an aerosol substrate 311 and an isolation part 312. The aerosol substrate 311 is located within the isolation part 312, and the isolation part 312 encloses the aerosol substrate 311. This prevents the aerosol substrate 311 from contacting the resonant rod 400. In addition, since the aerosol substrate 311 becomes hot when heated, the aerosol substrate 311 and the resonant rod 400 are isolated from each other to prevent the aerosol substrate 311 from adhering to the resonant rod 400, and the amount of cleaning work for the resonant rod 400 is reduced.

[0078] Naturally, in order to avoid adhesion between the isolating portion 312 and the resonating rod 400, the isolating portion 312 needs to be made of a material that is unlikely to interact with microwaves. Also, the isolating portion 312 needs to be installed so as to have a supporting effect. Therefore, the isolating portion 312 may be made of at least one of highly breathable paperboard, bleached kraft paper, polytetrafluoroethylene film, porous ceramic sheet, synthetic resin, chemical fiber product, polylactic acid film, aluminum foil, and nonwoven fabric.

[0079] figure 2 and Figure 4 In combination, in a possible embodiment, the interface portion 360 penetrates the aerosol substrate portion 310 .

[0080] In this embodiment, the insertion portion 360 is limited to penetrating the aerosol substrate portion 310. The resonating rod 400 needs to be inserted into the aerosol substrate portion 310. Therefore, if one penetrating section is directly provided in the aerosol substrate portion 310, the convenience of processing the insertion portion 360 can be improved. In addition, since the resonating rod 400 penetrates the aerosol substrate portion 310, the size of the resonating rod 400 in the insertion portion 360 can be easily adjusted. The insertion size of the resonating rod 400 in the insertion portion 360 can be changed according to the thickness of the aerosol substrate portion 310. This allows the aerosol substrate 311 in the aerosol substrate portion 310 to be heated uniformly, improving the heating effect on the aerosol substrate 311 and improving the utilization rate of the aerosol substrate 311.

[0081] In a possible embodiment, the aerosol substrate portion 310 further comprises a position restricting portion 350. The position restricting portion 350 is provided within the insert portion 360 and is used to abut against the end of the resonating rod 400.

[0082] In this embodiment, a position restricting unit 350 is installed in the housing, and the position restricting unit 350 can restrict the position of the resonant rod 400. Specifically, the position restricting unit 350 restricts the maximum insertion size of the resonant rod 400 into the insertion unit 360. The resonant rod 400 can be inserted into the insertion unit 360 to improve the heating effect on the aerosol substrate 311, but the heating effect does not improve as the insertion length increases, and it is necessary that the microwaves transmitted from the end of the resonant rod 400 can act uniformly on the aerosol substrate 311 at each point in the aerosol substrate unit 310. If the resonant rod 400 penetrates the insertion unit 360, a very large amount of microwaves transmitted from the end of the resonant rod 400 cannot act on the aerosol substrate 311, and the microwaves are wasted. Furthermore, when the end of the resonant rod 400 penetrates the insertion part 360, the distance between the end of the resonant rod 400 and the side of the aerosol substrate part 310 facing the resonant cavity 110 becomes large. In this case, the heating effect of the end of the resonant rod 400 on the side of the aerosol substrate part 310 facing the resonant cavity 110 decreases. Therefore, in order to ensure that the resonant rod 400 can uniformly heat the aerosol substrate 311 at each location, the maximum insertion length of the resonant rod 400 into the insertion part 360 is restricted by the position restricting part 350. This ensures the heating effect on the aerosol substrate 311, and improves the utilization rate of the aerosol substrate 311.

[0083] In a possible embodiment, there are at least two position restriction portions 350. The at least two position restriction portions 350 are distributed at intervals in the circumferential direction of the insertion portion 360. Alternatively, the position restriction portion 350 has an annular structure.

[0084] In this embodiment, the structure of the position restricting portion 350 is limited. At least two position restricting portions 350 are required, and the at least two position restricting portions 350 are installed at intervals in the circumferential direction of the insertion portion 360. The at least two position restricting portions 350 can restrict the position of the end of the resonant rod 400. Since the at least two position restricting portions 350 are divided at intervals, the end of the resonant rod 400 can receive a uniform blocking force. This avoids the problem of displacement of the resonant rod 400 and the aerosol-generating substrate 300, and reduces the breakage rate of the aerosol-generating substrate 300 and the resonant rod 400, improving the user experience of the aerosol generating device.

[0085] Of course, the position restriction portion 350 may have a ring structure. The ring-shaped position restriction portion 350 can also stably restrict the position of the end of the resonant rod 400, and the resonant rod 400 and the aerosol generator can be prevented from being displaced from each other.

[0086] Some embodiments of the present application provide an aerosol generating device, which includes a housing 100 in which a resonant cavity 110 is provided, a microwave assembly 200 provided in the housing 100 and used to introduce microwaves into the resonant cavity 110, and a resonant rod 400 having a first end connected to a bottom wall of the resonant cavity 110 and a second end facing an opening of the resonant cavity 110 and used to be inserted into an aerosol-generating substrate 300. When the resonant rod 400 is inserted into the aerosol-generating substrate 300, the resonant rod 400 and the aerosol-generating substrate 300 are spaced apart from each other.

[0087] The microwave assembly 200 can generate microwaves. The housing 100 is provided with a resonant cavity 110, and the microwave assembly can introduce microwaves into the resonant cavity 110. The resonant rod 400 is mounted in the resonant cavity 110. The diameter of the resonant rod 400 is smaller than the diameter of the resonant cavity 110. Thus, a gap is provided between the outer wall of the resonant rod 400 and the inner wall of the resonant cavity 110, and microwaves can be transmitted within the gap. The resonant rod 400 can be a conductor. The resonant rod 400 can be made of a metal material. For example, the resonant rod 400 is made of copper, aluminum, iron, or an alloy thereof. The resonant rod 400 is used to transmit microwaves and to improve the transmission speed of microwaves. Since microwaves are less likely to be attenuated during transmission within the resonant cavity 110, the effect of the microwaves acting on the aerosol-generating substrate 300 is improved. This allows the microwaves to act on the aerosol-generating substrate 300 efficiently and quickly, which is advantageous in meeting the needs of users. The aerosol-generating substrate 300 also includes an aerosol substrate section 310. An aerosol substrate 311 is installed in the aerosol substrate section 310. When microwaves act on the aerosol substrate 311, the aerosol substrate 311 is heated by the action of the microwaves, and the aerosol substrate 311 can generate an aerosol. The resonant rod 400 can be inserted into the aerosol substrate section 310. Since the gaps between the resonant rod 400 and both ends of the aerosol substrate section 310 are both small, it is difficult for a portion of the aerosol substrate section 310 to have a large gap with the resonant rod 400. That is, the aerosol substrate 311 at each location in the aerosol substrate section 310 can be uniformly heated by the microwaves transmitted from the resonant rod 400, which is advantageous in improving the utilization rate of the aerosol substrate 311.

[0088] The resonant rod 400 is spaced apart from the aerosol substrate 310 to avoid contact between the resonant rod 400 and the aerosol substrate 311. This prevents the resonant rod 400 from becoming dirty, and reduces the amount of cleaning work required for the resonant rod 400.

[0089] Combining FIGS. 1 and 2, in a possible embodiment, the inner wall located at the opening in the resonant cavity 110 is in contact with the aerosol-generating substrate 300 .

[0090] In this embodiment, an opening is provided in the resonant cavity 110. The aerosol-generating substrate 300 can be inserted into the resonant cavity 110 through the opening of the resonant cavity 110. The inner wall of the resonant cavity 110 at the opening contacts the aerosol-generating substrate 300, so that the inner wall of the opening can restrict the position of the aerosol-generating substrate 300. 110 The opening restricts the position of the aerosol-generating substrate 300. When the resonating rod 400 is inserted into the insertion portion 360, the position of the aerosol-generating substrate 300 can also be restricted by the resonating rod 400. That is, the inner wall of the opening and the resonating rod 400 restrict the position of the aerosol-generating substrate 300 at two positions. This allows the aerosol-generating substrate 300 to be stably attached to the housing 100, thereby preventing the aerosol-generating substrate 300 from wobbling in the resonating cavity 110 and improving stability when the user uses the aerosol generating device.

[0091] Combining Figures 3 and 4, in a possible embodiment, the aerosol-generating device further includes a fixed base 500. The fixed base 500 is provided on the housing 100. The fixed base 500 is also located within the resonant cavity 110. The fixed base 500 is provided with a mounting cavity. The mounting cavity is used to insert a portion of the aerosol-generating substrate 300.

[0092] In this embodiment, the fixed base 500 is installed on the housing 100. The fixed base 500 is provided with a mounting cavity, and a part of the aerosol-generating substrate 300 can be inserted into the mounting cavity. Since the aerosol-generating substrate 300 can be mounted on the fixed base 500, the aerosol-generating substrate 300 is less likely to wobble relative to the housing 100, improving the stability when the user uses the aerosol generating device. In addition, since the fixed base 500 is installed in the resonant cavity 110, the overall length of the housing 100 is reduced. This is advantageous for realizing a miniaturization of the aerosol generating device, and is convenient for the user to carry and store the aerosol generating device.

[0093] Generally, the aerosol-generating substrate 300 has a cylindrical structure, so the mounting cavity may be a cylindrical hollow body. In addition, the radial size of the aerosol-generating substrate 300 is equal to or smaller than the radial size of the mounting cavity. Aerosol-generating substrates This makes it difficult for the aerosol-generating substrate 300 to come off the fixed base 500, Aerosol-generating substrates The stability of the mounting is reliably guaranteed.

[0094] When the aerosol-generating substrate 300 is attached by the fixed base 500, the user only needs to clean the fixed base 500 after using the aerosol-generating substrate 300. This is advantageous in reducing the amount of work required for the user to clean the housing 100.

[0095] The height of the aerosol substrate 310 is equal to or less than the height of the fixed base 500. The height of the aerosol substrate 310 is between 3 mm and 25 mm. Also, the diameter of the aerosol substrate 310 is greater than the diameter of the resonating rod 400. The diameter of the aerosol substrate 310 is between 3 mm and 20 mm.

[0096] The bottom wall of the mounting cavity is provided with a protruding structure, which aims to maintain smooth airflow during inhalation and reduce suction resistance.

[0097] The fixed base 500 and the resonant cavity 110 are installed coaxially, which allows the resonant rod 400 to be disposed at the center of the resonant cavity 110, thereby improving the microwave transmission effect of the resonant rod 400.

[0098] The fixed base 500 is sealed without any holes except for an opening at its upper end through which the aerosol-generating substrate 300 is inserted.

[0099] In order to avoid the effect of microwaves on the fixed base 500, the material of the fixed base 500 should be a low dielectric loss material, such as polyetheretherketone, polytetrafluoroethylene, microwave transparent ceramics, glass, aluminum oxide, zirconia, or silicon oxide.

[0100] 3 and 4 , in a possible embodiment, the aerosol generating device further includes a protrusion 510. The protrusion 510 is provided on the bottom wall of the mounting cavity and is inserted into the insertion part 360. The protrusion 510 is provided with a receiving part, and the second end of the resonating rod 400 is inserted into the receiving part.

[0101] In this embodiment, the protrusion 510 is provided on the bottom wall of the mounting cavity. The protrusion 510 protrudes from the bottom wall of the mounting cavity in a direction away from the resonant rod 400. A receiving portion is provided on the protrusion 510, and the second end of the resonant rod 400 can be inserted into the receiving portion. The protrusion 510 can also be inserted into the insertion portion 360. Therefore, the protrusion 510 is provided between the insertion portion 360 and the resonant rod 400, and the protrusion 510 isolates the insertion portion 360 and the resonant rod 400. This prevents the resonant rod 400 from contacting the aerosol-generating substrate 300, thus preventing damage to the resonant rod 400 and improving the structural stability of the aerosol generating device. Furthermore, the fixed base 500 is provided to protect the resonant rod 400, so that dirt can only enter the fixed base 500 and cannot enter the resonant cavity 110. This further prevents contamination of the resonator rod 400, thereby reducing the amount of cleaning work required by the user.

[0102] In a possible embodiment, the fixed base 500 is removably connected to the housing 100 .

[0103] In this embodiment, the connection relationship between the fixed base 500 and the housing 100 is limited. The fixed base 500 can be attached to or detached from the housing 100. After use of the aerosol generating device, the fixed base 500 can be detached from the housing 100, so that the fixed base 500 can be easily washed independently, improving the convenience for the user when cleaning the fixed base 500. This is advantageous for improving the convenience of the aerosol generating device when used by the user.

[0104] For example, mounting holes may be provided in the fixed base 500 and the housing 100, and a locking member such as a bolt may be inserted into the mounting hole to mount the fixed base 500 to the housing 100. Also, a hook assembly may be provided in the fixed base 500 and the housing 100, and the fixed base 500 may be locked to the housing 100 by the hook assembly.

[0105] Some embodiments of the present application provide an aerosol generating system, which includes a housing 100 in which a resonant cavity 110 is provided, a microwave assembly 200 provided in the housing 100 and used to introduce microwaves into the resonant cavity 110, a resonant rod 400 having a first end connected to a bottom wall of the resonant cavity 110 and a second end facing an opening of the resonant cavity 110, and an aerosol generating substrate 300 including an aerosol substrate portion 310. The aerosol substrate portion 310 is provided with an aerosol substrate 311. The aerosol substrate portion 310 extends into the resonant cavity 110 from the opening of the resonant cavity 110. The aerosol substrate portion 310 is also provided with an insertion portion, and a second end of the resonant rod 400 is inserted into the insertion portion. The second end of the resonant rod 400 and the aerosol substrate 311 are spaced apart from each other.

[0106] The aerosol generating device provided in the present application includes a resonant cavity 110 installed in a housing 100, and a microwave assembly 200 can be mounted on the housing 100. The microwave assembly 200 can generate microwaves. The resonant cavity 110 is installed in the housing 100, and the microwave assembly 200 can introduce microwaves into the resonant cavity 110. A resonant rod 400 is mounted in the resonant cavity 110. The diameter of the resonant rod 400 is smaller than the diameter of the resonant cavity 110. Thus, a gap is provided between the outer wall of the resonant rod 400 and the inner wall of the resonant cavity 110, and microwaves can be transmitted within the gap. The resonant rod 400 can be a conductor. The resonant rod 400 can be made of a metal material. For example, the resonant rod 400 is made of copper, aluminum, iron, or an alloy thereof. The resonant rod 400 is used to transmit microwaves and improve the transmission speed of microwaves. Since microwaves are less likely to be attenuated during transmission in the resonant cavity 110, the effect of the microwaves acting on the aerosol-generating substrate 300 is improved. This allows the microwaves to act on the aerosol-generating substrate 300 efficiently and quickly, which is advantageous in meeting the needs of users. The aerosol-generating substrate 300 includes an aerosol substrate section 310. An aerosol substrate 311 is installed in the aerosol substrate section 310. When microwaves act on the aerosol substrate 311, the aerosol substrate 311 is heated by the action of the microwaves, and the aerosol substrate 311 can generate an aerosol. An insertion section is installed in the aerosol substrate section 310, and the resonant rod 400 can be inserted into the insertion section. Since the gaps between the resonant rod 400 and both ends of the aerosol substrate section 310 are both small, it is difficult for a portion of the aerosol substrate section 310 where the gap between the resonant rod 400 and the aerosol substrate section 310 is large to occur. That is, the aerosol substrate 311 at each location in the aerosol substrate portion 310 can be uniformly heated by the microwaves transmitted from the resonant rod 400, which is advantageous in improving the utilization rate of the aerosol substrate 311.

[0107] The resonant rod 400 is spaced apart from the aerosol substrate 310 to avoid contact between the resonant rod 400 and the aerosol substrate 311. This prevents the resonant rod 400 from becoming dirty, and reduces the amount of cleaning work required for the resonant rod 400.

[0108] In a possible embodiment, the aerosol-generating system further comprises a fixed base mounted on the housing 100. The fixed base is located within the resonant cavity 110. The fixed base is provided with a mounting cavity. The mounting cavity is used to insert a portion of the aerosol-generating substrate 300.

[0109] A fixed base 500 is installed on the housing 100. The fixed base 500 is provided with a mounting cavity, into which a part of the aerosol-generating substrate 300 can be inserted. Since the aerosol-generating substrate 300 can be mounted on the fixed base 500, the aerosol-generating substrate 300 is less likely to wobble relative to the housing 100, improving the stability of the aerosol generating device when used by a user. In addition, since the fixed base 500 is installed within the resonant cavity 110, the overall length of the housing 100 is reduced. This is advantageous for realizing a compact aerosol generating device, and is convenient for a user to carry and store the aerosol generating device.

[0110] Generally, the aerosol-generating substrate 300 has a cylindrical structure, so the mounting cavity may be a cylindrical hollow body. In addition, the radial size of the aerosol-generating substrate 300 is equal to or smaller than the radial size of the mounting cavity. Aerosol-generating substrates This makes it difficult for the aerosol-generating substrate 300 to come off the fixed base 500, Aerosol-generating substrates The stability of the mounting is reliably guaranteed.

[0111] When the aerosol-generating substrate 300 is attached by the fixed base 500, the user only needs to clean the fixed base 500 after using the aerosol-generating substrate 300. This is advantageous in reducing the amount of work required for the user to clean the housing 100.

[0112] The height of the aerosol substrate 310 is equal to or less than the height of the fixed base 500. The height of the aerosol substrate 310 is between 3 mm and 25 mm. Also, the diameter of the aerosol substrate 310 is greater than the diameter of the resonating rod 400. The diameter of the aerosol substrate 310 is between 3 mm and 20 mm.

[0113] The bottom wall of the mounting cavity is provided with a protruding structure, which aims to maintain smooth airflow during inhalation and reduce suction resistance.

[0114] The fixed base 500 and the resonant cavity 110 are installed coaxially, which allows the resonant rod 400 to be disposed at the center of the resonant cavity 110, thereby improving the microwave transmission effect of the resonant rod 400.

[0115] The fixed base 500 is sealed without any holes except for an opening at its upper end through which the aerosol-generating substrate 300 is inserted.

[0116] In a possible embodiment, the height of the mounting cavity is greater than the length of the aerosol substrate portion 310 .

[0117] In this embodiment, the relationship between the height of the mounting cavity and the length of the aerosol substrate part 310 is limited. When the fixed base 500 is located in the resonant cavity 110 and the height of the mounting cavity is greater than the length of the aerosol substrate part 310, the entire aerosol substrate part 310 is located in the resonant cavity 110, and therefore the entire aerosol substrate 311 is also located in the resonant cavity 110. This makes it difficult for the heat generated in the aerosol substrate 311 to dissipate when the aerosol substrate 311 is heated by microwaves, so that the temperature rise rate of the aerosol substrate 311 can be accelerated, which is advantageous for realizing the instantaneous inhalation and instantaneous puff function. In addition, the speed of the aerosol generated by the aerosol substrate 311 is accelerated, which is advantageous for improving the user experience of the aerosol generating device.

[0118] In a possible embodiment, when the insertion length of the resonating rod 400 into the insert portion 360 is L and the length of the aerosol substrate portion 310 is H, L≦1 / 3H is satisfied.

[0119] In this embodiment, the maximum insertable length of the resonant rod 400 into the insertion portion 360 is limited. Specifically, if the insertion length of the resonant rod 400 is excessively large based on the insertion length of the resonant rod 400 restricted by the position restricting portion 350 or the insertion length of the resonant rod 400 restricted by the protruding portion 510, a problem occurs that a very large amount of microwaves transmitted from the end of the resonant rod 400 cannot act on the aerosol substrate 311. Therefore, in order to ensure that the resonant rod 400 can uniformly heat the aerosol substrate 311 at each point, the insertion length of the resonant rod 400 into the insertion portion 360 is limited to one-third or less of the thickness of the aerosol substrate portion. This ensures the heating effect on the aerosol substrate 311, and improves the utilization rate of the aerosol substrate 311.

[0120] 5, in a possible embodiment, the microwave assembly 200 includes a microwave introduction part 210 and a microwave emission source 220. The microwave introduction part 210 is installed on a side wall of the housing 100. The microwave emission source 220 is connected to the microwave introduction part 210. The microwave output from the microwave emission source 220 is introduced into the resonant cavity 110 through the microwave introduction part 210. The microwave is then transmitted in a direction from a first end of the resonant rod 400 to a second end of the resonant rod 400.

[0121] In this embodiment, the microwave source 220 can generate microwaves, and the microwaves are introduced into the resonant cavity 110 through the microwave introduction part 210. By installing the microwave introduction part 210, the introduction position of the microwaves in the resonant cavity 110 can be changed, so that the components in the resonant cavity 110 can be avoided and the microwaves can be stably transmitted from the first end of the resonant rod 400 to the second end of the resonant rod 400.

[0122] As shown in Figure 6, the return loss is affected by the microwave frequency. As the microwave frequency increases, the return loss first decreases and then increases. When the microwave frequency is around 244 GHz, the return loss is small, and at this time, the microwave introduction effect is good.

[0123] 5, in a possible embodiment, the microwave introduction section 210 includes a first introduction member 211 and a second introduction member 212. The first introduction member 211 is installed on a side wall of the housing 100, and a first end of the second introduction member 212 is connected to the first introduction member 211. The second introduction member 212 is located within the resonant cavity 110, and a second end of the second introduction member 212 faces the bottom wall of the resonant cavity 110.

[0124] In this embodiment, the microwave introduction section 210 is composed of two parts, a first introduction member 211 and a second introduction member 212. The first introduction member 211 is installed on the side wall of the housing 100. The first introduction member 211 is connected to the microwave emission source 220. As a result, the microwave generated by the microwave emission source 220 is introduced into the resonant cavity 110 through the first introduction member 211. The second introduction member 212 can change the propagation direction of the microwave. Since the second introduction member 212 faces the bottom wall of the resonant cavity 110, the microwave is transmitted to the bottom wall of the resonant cavity 110. The microwave at the bottom wall of the resonant cavity 110 is transmitted to the aerosol substrate 311 through the resonant rod 400. By installing the second introduction member 212 so as to face the bottom wall of the resonant cavity 110, it is reliably guaranteed that the microwave can be transmitted from the first end of the resonant rod 400. When the first introduction member 211 and the second introduction member 212 transmit microwaves, a change in direction occurs in the microwaves during transmission. By installing them in this manner, most of the microwaves transmitted by the microwave introduction section 210 can be introduced into the resonant cavity 110, and the introduction efficiency of the microwaves is improved, so that the microwaves can be made to act on the aerosol substrate 311 efficiently.

[0125] In a possible embodiment, the aerosol generating device further includes a recess disposed in the bottom wall of the resonant cavity 110, and a second end of the second introduction member 212 is located within the recess.

[0126] In this embodiment, the second end of second introduction member 212 is located within the recessed portion. The recessed portion can act to protect the end of second introduction member 212. This prevents the end of second introduction member 212 from contacting other components, improving the structural stability of the aerosol generation device.

[0127] 5, in a possible embodiment, the microwave introduction section 210 includes a first introduction member 211 and a second introduction member 212. The first introduction member 211 is installed on a side wall of the housing 100, and a first end of the second introduction member 212 is connected to the first introduction member 211. The second introduction member 212 is located within the resonant cavity 110, and a second end of the second introduction member 212 faces the resonant rod 400.

[0128] In this embodiment, the microwave introduction section 210 is composed of two parts, a first introduction member 211 and a second introduction member 212. The first introduction member 211 is installed on the side wall of the housing 100. The first introduction member 211 is connected to the microwave emission source 220. As a result, the microwaves generated by the microwave emission source 220 are introduced into the resonant cavity 110 through the first introduction member 211. The second introduction member 212 faces the resonant rod 400. That is, the second introduction member 212 is parallel to the bottom wall of the resonant cavity 110. By installing in this manner, most of the microwaves transmitted by the microwave introduction section 210 can be introduced into the resonant cavity 110, and the introduction efficiency of the microwaves is improved, so that the microwaves can be efficiently applied to the aerosol substrate 311.

[0129] In this application, unless otherwise clearly limited, the term "plurality" means two or more than two. In addition, the terms "attached," "connected," "connected," "fixed," and the like should be interpreted broadly. For example, "connected" may mean a fixed connection, a removable connection, or an integral connection. In addition, "connected" may mean a direct connection, or an indirect connection via an intermediate medium. Those skilled in the art can interpret the specific meaning of the above terms in this application according to the specific situation.

[0130] In the description of this specification, the term "one embodiment," "some embodiments," "specific embodiments," etc. means that the specific features, structures, materials, or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of this application. In this specification, general descriptions of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in any one or more embodiments or examples.

[0131] The above description is only a preferred embodiment of the present application, and does not limit the present application. Those skilled in the art may have various modifications and variations in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application. [Explanation of symbols]

[0132] 100 Case 110 Resonance Cavity 200 Microwave Assembly 210 Microwave introduction section 211 First Introduction Component 212 Second introduction member 220 Microwave Source 300 Aerosol-generating Substrates 310 Aerosol Substrate Section 311 Aerosol Substrates 312 Isolation Department 320 Hollow Section 330 Temperature drop section 340 Filter Section 350 Position regulation part 360 Insertion part 400 Resonant Rod 500 Fixed Base 510 Protrusion

Claims

1. a housing in which a resonant cavity is provided; a microwave assembly provided in the housing and used to introduce microwaves into the resonant cavity; a resonator rod having a first end connected to a bottom wall of the resonator cavity and a second end facing an opening of the resonator cavity; an aerosol-generating substrate comprising an aerosol substrate portion; An aerosol generation system comprising: an aerosol substrate provided on the aerosol substrate portion; the aerosol substrate portion extending into the resonant cavity from an opening of the resonant cavity; an insertion portion provided on the aerosol substrate portion; a second end of the resonant rod inserted into the insertion portion; and a gap between the second end of the resonant rod and the aerosol substrate.

2. The aerosol generating system of claim 1, further comprising a fixed base attached to the housing, the fixed base being positioned within the resonant cavity, the fixed base having a mounting cavity, the mounting cavity being used to insert a portion of the aerosol generating substrate.

3. The aerosol generating system of claim 2, wherein the height of the mounting cavity is greater than the length of the aerosol substrate portion.

4. An aerosol generating system described in any one of claims 1 to 3, characterized in that when the insertion length of the resonant rod into the insertion portion is L and the length of the aerosol substrate portion is H, L≦1 / 3H is satisfied.

5. The aerosol generating system of claim 1, wherein the aerosol substrate portion further includes an isolation portion, the aerosol substrate being located within the isolation portion, and the isolation portion is used to isolate the aerosol substrate from the resonant rod.

6. The aerosol generating system of claim 5 , wherein the insertion portion penetrates the aerosol substrate portion.

7. The aerosol generating system according to claim 6, characterized in that the aerosol substrate portion further includes a positional restriction portion provided within the insertion portion and used to abut against the end of the resonator rod.

8. The number of the position restriction portions is at least two, and the at least two position restriction portions are distributed at intervals in the circumferential direction of the insertion portion, or The aerosol generating system according to claim 7 , wherein the position restriction portion has an annular structure.

9. 2. The aerosol generating system of claim 1, wherein an inner wall located at an opening in the resonant cavity is used to contact the aerosol generating substrate.

10. The aerosol generating system described in claim 2, further comprising a protrusion provided on the bottom wall of the mounting cavity and inserted into an insertion portion of the aerosol generating substrate, the protrusion having a housing portion, and the second end of the resonator rod being inserted into the housing portion.

11. The aerosol generating system of claim 2 , wherein the fixed base is removably connected to the housing.

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