JP2024528815A - Aerosol Generator - Google Patents

Abstract

The aerosol generating device (100) includes a housing (110), a resonant cavity (120), a microwave module (130), a mounting portion (140), and a pressure sensor (150). The microwave module (130) is used to supply microwaves into the resonant cavity (120). The mounting portion (140) is provided on the housing (110). At least a portion of the mounting portion (140) is located within the resonant cavity (120). The mounting portion (140) includes an atomization chamber (143). The atomization chamber (143) is used to accommodate an aerosol-generating substrate. The pressure sensor (150) is provided on the housing and located outside the resonant cavity (120). A collecting end of the pressure sensor (150) is in communication with the atomization chamber (143) and is used to collect the air pressure value within the atomization chamber (143). The device detects whether the aerosol generating device (100) is in an inhalation state, and controls the operation of the microwave module (130) based on the inhalation state, so that after the user stops inhaling, the microwave module (130) can be immediately controlled to stop operating, thereby avoiding the waste of electrical energy and aerosol generating substrates.

Description

This application is in the technical field of electronic atomization, and more specifically, relates to an aerosol generating device.

A heat not burning (HNB) device is an electronic device that heats an aerosol-generating substrate (a treated plant leaf product) without burning it. The heat not burning device heats the aerosol-generating substrate to a high temperature that can generate an aerosol but does not result in combustion, allowing the aerosol-generating substrate to generate the aerosol desired by the user, without burning the substrate.

Currently, HNB devices on the market mainly adopt a resistance heating method. That is, a central heating tip or a heating needle is inserted into the aerosol-generating substrate from the center to heat it. Such devices require preheating before use, so the standby 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 contact with the heating element becomes too high, causing partial decomposition, which releases substances harmful to the human body. Therefore, microwave heating technology is gradually replacing the resistance heating method as 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:

a. Microwave heating is radiation heating, not heat transfer, so it is possible to achieve instant inhalation and instant stopping.

b. Since it does not have a heating tip, there are no problems with tip breakage or cleaning the heating tip.

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.

However, conventional microwave-heated HNB devices cannot immediately control the microwave module to stop operating after the user stops inhaling, resulting in waste of electrical energy and aerosol substrate.

The purpose of this application is to solve one of the technical problems existing in the prior art or related art.

Therefore, the present application provides an aerosol generating device.

In view of the above, the present application provides an aerosol generating device. The aerosol generating device includes a housing including a resonant cavity, a microwave module provided in the housing and configured to supply microwaves into the resonant cavity, a mounting portion provided in the housing and at least a portion of which is located within the resonant cavity, the mounting portion including an atomization chamber, the atomization chamber being used to accommodate an aerosol-generating substrate, and a pressure sensor provided in the housing and located outside the resonant cavity, the collection end of which is in communication with the atomization chamber, and the pressure sensor being used to collect the air pressure value within the atomization chamber.

The aerosol generating device provided by the present application includes a housing, a microwave module, a mounting portion, and a pressure sensor. A resonant cavity is provided within the housing. The microwave output end of the microwave module is connected to the resonant cavity, and microwaves generated by the microwave module are supplied into the resonant cavity. The mounting portion is provided within the housing. An atomization chamber is provided inside the mounting portion. The atomization chamber is used to accommodate an aerosol-generating substrate. The microwave module supplies microwaves into the resonant cavity and transmits them to the mounting portion via the resonant cavity, thereby microwave-heating the aerosol-generating substrate in the atomization chamber.

The mounting section isolates the resonant cavity from the atomization chamber, making it possible to prevent liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber from entering the resonant cavity. This prevents the aerosol generating device from breaking down due to debris entering the resonant cavity.

The aerosol generating device further includes a pressure sensor. The collection end of the pressure sensor is connected to the atomization chamber. The pressure sensor is capable of collecting the air pressure value within the atomization chamber. By providing the pressure sensor in the housing and positioning the pressure sensor outside the resonant cavity, the pressure sensor is not affected by the microwaves transmitted within the resonant cavity. By collecting the change in the air pressure value within the atomization chamber with the pressure sensor, it is possible to detect whether the aerosol generating device is in an inhalation state based on the change in the air pressure value within the atomization chamber. Then, the operation of the microwave module is controlled based on the inhalation state of the aerosol generating device.

In some embodiments, when it is detected that the aerosol generating device is in an inhalation state, the microwave module is operated to control the aerosol-generating substrate in the atomization chamber to be atomized by microwave heating. Also, when the aerosol generating device is not in an inhalation state, the operation of the microwave module is stopped to control the aerosol-generating substrate in the atomization chamber not to continue to be atomized by heating.

In some other embodiments, when the aerosol generating device receives a preheat control command in an activated state, the device controls the microwave module to operate at the first power until the indoor temperature value of the atomization chamber falls within the range of the set temperature value. This maintains the indoor temperature value within the range of the set temperature value, thereby enabling the preheating effect on the aerosol-generating substrate in the atomization chamber. The device also detects whether the aerosol generating device is in an inhalation state, and adjusts the first power based on the inhalation state of the aerosol generating device. Specifically, when it is detected that the aerosol generating device is in an inhalation state, the device controls the microwave module to operate at the second power to rapidly increase the temperature in the atomization chamber. As a result, the aerosol-generating substrate is rapidly exposed to heat and atomized, generating an aerosol. The second power is greater than the first power. On the other hand, when it is detected that the aerosol generating device is not in an inhalation state, the device controls the microwave module to maintain operation at the first power to continue preheating the aerosol-generating substrate.

In this application, the pressure sensor collects the air pressure value in the atomization chamber to detect whether the aerosol generating device is in an inhalation state, and the operation of the microwave module is controlled based on the inhalation state. As a result, after the user stops inhaling, the microwave module can be immediately controlled to stop operating, thereby avoiding waste of electrical energy and aerosol-generating substrate. In addition, since a preheating effect is achieved on the aerosol-generating substrate when the aerosol device is in a non-inhalation state, it is possible to rapidly heat the aerosol-generating substrate to the atomization temperature in the inhalation state. This reduces energy consumption and improves the atomization efficiency of the aerosol-generating substrate, and further improves the degree of atomization of the aerosol-generating substrate, improving the user experience.

In addition, the aerosol generating device in the above technical solution provided in accordance with the present application may further have the following additional technical features:

In a possible design, the mounting portion includes a base body in which the atomization chamber is provided, and a guide member having one end connected to the base body and the other end connected to the collection end of the pressure sensor.

In this design, the mounting portion includes a base body and a guide member. The base body is disposed within the housing. The base body and the atomization chamber surround and form a resonant cavity. The guide member is inserted into the housing. One end of the guide member is connected to the base body and communicates with the atomization chamber. The other end of the guide member extends to the outside of the housing and is connected to the pressure sensor. The guide member communicates the atomization chamber with the pressure sensor outside the housing, allowing the pressure sensor to directly collect the indoor pressure value of the atomization chamber.

In a possible design, the guide member includes a first tube integrally molded to the base body and a second tube mounted to the housing, the first end of which passes through the housing and is connected to the first tube, the second end of which is connected to the pressure sensor, the collection end of the pressure sensor being located within the second tube.

In this design, the guide member includes a first tube and a second tube. The first tube is in communication with the base body. The second tube is provided on a side wall of the housing. The second tube passes through the housing and is connected to the first tube. One end of the second tube located outside the housing is connected to the pressure sensor. By providing the guide member so that the first tube and the second tube are connected, the assembly process of the aerosol generating device can be simplified. It is also convenient to disassemble and clean the mounting part separately.

The first tube is molded integrally with the base body, further reducing the number of assembly steps. The second tube is attached to the housing by a fixing member. The fixing member can be a fastening member such as a screw or a rivet.

The assembly steps of the guide member and the mounting part include the following: That is, the base body with the first pipe integrally formed is inserted into the inside of the housing. Next, the second pipe is inserted into the side wall of the housing, and the second pipe and the first pipe are inserted and connected. This allows the first pipe and the second pipe to communicate with the atomization chamber in the base body, and ensures the sealing performance of the connection between the first pipe and the second pipe. Then, the second pipe is fixed to the side wall of the housing with a fastening member, completing the assembly process of the guide member and the mounting part. By providing the first pipe and the second pipe on the inside and outside of the housing, respectively, and connecting the first pipe and the second pipe to each other, it is possible to simplify the assembly steps of the guide member while ensuring the sealing performance of the guide member.

In a possible design, the mounting portion further includes an opening at one end of the base body. The opening communicates with the atomization chamber. The opening is used to allow the aerosol-generating substrate to enter the atomization chamber.

In this design, the mounting portion further includes an opening at one end of the base body. The opening faces the exterior of the housing. The opening communicates with the atomization chamber and is used to load the aerosol-generating substrate into the atomization chamber through the opening.

As can be seen, the aerosol-generating substrate is provided with an inhalation portion. The inhalation portion protrudes from the atomization chamber through an opening, and a user can inhale the aerosol-generating substrate through the inhalation portion.

In a possible design, the aerosol generating device further includes a first through hole provided in the housing, and the resonant cavity is in communication with the outside through the first through hole. The mounting portion further includes a second through hole provided in the base body, and the atomization chamber is in communication with the resonant cavity through the second through hole.

In this design, the aerosol generating device includes a first through hole and a second through hole. The first through hole is provided in the housing and connects the resonant cavity to the outside of the housing. The second through hole is provided in the base body and connects the resonant cavity to the atomization chamber. When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing passes through the first through hole, the resonant cavity, the second through hole, the atomization chamber, and the aerosol-generating substrate in this order. Then, the precipitates caused by the heat of the aerosol-generating substrate are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. As a result, a gas flow path is formed, and during the inhalation process of the aerosol-generating substrate, air outside the housing can be constantly replenished into the atomization chamber, and the aerosol-generating substrate can be sufficiently atomized. In addition, the situation in which the suction resistance of the aerosol-generating substrate becomes excessively large due to the airflow being too small can be avoided, improving the user experience.

In a possible design, the mounting portion further includes at least two protrusions provided on the inner wall of the mist chamber. The at least two protrusions protrude from the inner wall of the mist chamber. A gap is provided between two adjacent protrusions of the at least two protrusions. The at least two protrusions are used to secure the aerosol-generating substrate.

In this design, the mounting portion further includes at least two protrusions provided on the inner wall of the atomization chamber. The at least two protrusions are capable of exerting a fixing effect on the aerosol-generating substrate. When the aerosol-generating substrate is inserted into the atomization chamber through the opening, the at least two protrusions abut against the outer wall of the aerosol-generating substrate, thereby fixing the aerosol-generating substrate. This prevents the aerosol-generating substrate from slipping out of the atomization chamber.

Of the at least two protrusions, two adjacent protrusions are spaced apart. An airflow path is formed by the gap between the two adjacent protrusions and the air gap between the aerosol-generating substrate and the side wall of the atomization chamber.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing passes through the gap between two adjacent protrusions, the gap between the aerosol-generating substrate and the side wall of the atomization chamber, and then through the aerosol-generating substrate. Then, when the aerosol-generating substrate receives heat, precipitates mix with the gas to form an aerosol, and the aerosol formed is discharged from the inhalation part. This makes it possible to constantly replenish air from outside the housing into the atomization chamber during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. It also makes it possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, improving the user experience.

In a possible design, at least two protrusions are located on the inner wall of the atomization chamber adjacent to the opening. Also, the at least two protrusions are uniformly distributed around the circumference of the atomization chamber.

In this design, at least two protrusions are uniformly arranged along the axial direction of the atomization chamber. The uniformly distributed protrusions can provide a good fixing effect on the aerosol-generating substrate, preventing the aerosol-generating substrate from falling out of the atomization chamber during the inhalation process. In addition, the aerosol-generating substrate generates some dust during the inhalation process, but since at least two protrusions are arranged at one end close to the opening, the user can easily clean the dust adhering to the protrusions. This prevents dust from clogging the gaps between the protrusions, improving the stability of the operation of the aerosol generating device.

In a possible design, the mounting portion further includes a groove. The groove is provided on the inner wall of the atomization chamber and extends along the center line of the atomization chamber.

In this design, the mounting portion further includes a groove provided on the inner wall of the atomization chamber. After the aerosol-generating substrate is inserted into the atomization chamber through the opening, the aerosol-generating substrate comes into contact with the inner wall of the atomization chamber, so that the friction between the inner wall of the atomization chamber and the aerosol-generating substrate can prevent the aerosol-generating substrate from falling out of the atomization chamber.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing passes through the groove and the aerosol-generating substrate in that order. Then, when the aerosol-generating substrate receives heat, precipitates mix with the gas to form an aerosol, and the aerosol formed is discharged from the inhalation part. This makes it possible to constantly replenish air from outside the housing into the atomization chamber during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. It also makes it possible to avoid situations where the inhalation resistance of the aerosol-generating substrate becomes excessively large due to the airflow being too small, improving the user experience.

In a possible design, the number of grooves is at least two. Also, the at least two grooves are evenly distributed around the circumference of the atomization chamber.

In this design, the multiple grooves are evenly distributed on the inner peripheral side wall of the atomization chamber, allowing the outside air to come into uniform contact with the aerosol-generating substrate. This allows the precipitate of the aerosol-generating substrate to mix sufficiently with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

As can be seen, by rationally setting the number and inner diameter of the grooves, it is possible to adjust the suction resistance of the aerosol generating device.

In a possible design, the attachment further includes a spacer disposed in the nebulization chamber. The spacer divides the nebulization chamber into a first chamber and a second chamber. The first chamber is in communication with the second chamber. The first chamber is used to contain the aerosol-generating substrate.

In this design, the attachment further includes a spacer disposed within the nebulization chamber. The spacer divides the nebulization chamber into a first chamber and a second chamber that are in communication with each other. The first chamber is used to contain the aerosol-generating substrate, and the second chamber is in communication with the air outside the nebulization chamber.

When a user inhales through the inhalation part of the aerosol-generating substrate, air outside the housing passes through the second chamber, the first chamber, and the aerosol-generating substrate in that order. That is, the air passes through the second chamber, enters the first chamber, and comes into contact with the aerosol-generating substrate. Then, when the aerosol-generating substrate is heated, precipitates mix with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. As a result, during the inhalation process of the aerosol-generating substrate, air outside the housing can be constantly replenished into the atomization chamber, and the aerosol-generating substrate can be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, thereby improving the user experience.

In a possible design, the first and second chambers are distributed in a coaxial annular fashion, with the second chamber located outside the first chamber.

In this design, the second chamber is provided in an annular shape outside the first chamber, so that the air passes through the second chamber and then uniformly enters the first chamber from the outside. This allows the outside air to come into uniform contact with the aerosol-generating substrate, so that the precipitate on the aerosol-generating substrate can be sufficiently mixed with the air to form an aerosol. This improves the atomization effect of the aerosol-generating substrate.

In a possible design, the mounting portion further includes a third through hole provided in the spacer. The third through hole is located at one end of the spacer that is connected to the bottom wall of the atomization chamber.

In this design, the mounting portion further includes a third through hole. The third through hole is provided in the spacer and provides communication between the first chamber and the second chamber.

In a possible design, the mounting portion further includes a support portion provided on the bottom wall of the atomization chamber. The support portion protrudes from the bottom wall of the atomization chamber.

In this design, the mounting portion further includes a support portion provided on the bottom wall of the atomization chamber. The support portion supports the aerosol-generating substrate, thereby creating a gap between the aerosol-generating substrate and the bottom wall of the atomization chamber. This allows air entering the atomization chamber from the outside to come into contact with the bottom end of the aerosol-generating substrate, further improving the mixing effect between the air and the precipitate formed when the aerosol-generating substrate is heated. This allows the precipitate of the aerosol-generating substrate to be sufficiently mixed with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

In a possible design, the housing includes a body and an end cover removably connected to the body, with the mounting portion inserted into the end cover, and the end cover and body enclosing the resonant cavity.

In this design, the housing includes a main body and an end cover. The mounting portion is provided on the end cover, and the end cover is removably connected to the main body. This makes it convenient for a user to remove the end cover and disassemble and clean the mounting portion separately, thus avoiding failures caused by water ingress when cleaning the entire aerosol generating device.

In a possible design, the aerosol generating device further includes a resonant rod disposed within the resonant cavity. A first end of the resonant rod is connected to a bottom wall of the cavity wall of the resonant cavity, and a second end of the resonant rod is disposed opposite the mounting portion.

In this design, the resonant rod is used for resonant transmission of microwaves. The first end of the resonant rod is connected to the bottom wall of the resonant cavity, and the second end of the resonant rod is arranged to face the mounting part. The microwaves supplied by the microwave module into the resonant cavity are transmitted from the first end to the second end of the resonant rod, thereby microwave heating the aerosol-generating substrate in the atomization chamber of the mounting part.

The atomization chamber and the resonant cavity are isolated by the mounting portion, so that liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber can be prevented from entering the resonant cavity. This prevents the microwave module from failing due to debris entering the resonant cavity.

In some embodiments, the inner walls of the resonant cavity and the resonant rod are made of a conductive material, which can be a metallic material such as gold, copper, or silver.

In some embodiments, the inner wall of the resonant cavity and the outer wall of the resonant bar are provided with a conductive coating layer. The conductive coating layer is selected to be a metal coating layer, such as a gold-plated layer, a copper-plated layer, or a silver-plated layer.

In these embodiments, a metal with high stability and excellent electrical conductivity is selected to provide the resonant cavity and resonant rod. This not only prevents microwaves from leaking out, but also prevents the inner walls of the resonant cavity and the resonant rod from rusting.

In some embodiments, the portion of the mounting part that is located inside the resonant cavity is made of a material with low dielectric loss, such as a PTFE material (polytetrafluoroethylene material), a glass material, or a ceramic material. This allows microwaves to be transmitted to the atomization chamber inside the mounting part, thereby heating the aerosol-generating substrate in the atomization chamber with microwaves and generating an aerosol.

In some embodiments, the mounting portion is removably connected to the housing.

In these embodiments, the atomization chamber for containing the aerosol-generating substrate is provided within the attachment portion. This allows the atomization chamber to be disassembled and cleaned separately by removing the attachment portion, improving the user experience.

In a possible design, the resonating rod is spaced apart from the mounting part.

In this design, a gap is provided between the resonating rod and the mounting part, which makes it possible to prevent the resonating rod from being pressed during the process of assembling the mounting part to the housing. This reduces the requirements for production and assembly precision of the resonating rod and mounting part.

In a possible design, the aerosol generating device further includes a fixing part provided on the mounting part and positioned within the resonant cavity. The fixing part includes a position control chamber, and at least a portion of the resonant rod is positioned within the position control chamber.

In this design, the aerosol generating device further includes a fixing part provided on the mounting part. A position control chamber is provided within the fixing part, and at least a portion of the resonating rod is located within the position control chamber. The fixing part provides a certain degree of vibration damping effect on the resonating rod by fixing the resonating rod via the position control chamber. This prevents the resonating rod from falling out due to vibration.

In some embodiments, the fixing portion and the mounting portion are integrally molded.

In these embodiments, the fixing part and the mounting part are formed as a single unit and have a high bonding strength, improving the stabilization effect of the fixing part on the resonating rod.

In a possible design, the axis of the atomization chamber and the axis of the resonating rod are coaxial.

In this design, the atomization chamber and the resonant rod are arranged coaxially, so it is possible to ensure that the microwaves transmitted to the atomization chamber via the resonant rod are transmitted to the central position of the atomization chamber. This improves the uniformity when the microwaves heat the aerosol-generating substrate in the atomization chamber, and avoids uneven heating of the aerosol-generating substrate caused by the concentration of microwaves in the atomization chamber, further improving the atomization effect of the aerosol-generating substrate.

In a possible design, the microwave module includes a microwave introduction section provided on a side wall of the housing and communicating with the resonant cavity, and a microwave emission source connected to the microwave introduction section, where microwaves output from the microwave emission source are supplied to the resonant cavity via the microwave introduction section, and the microwaves are transmitted in a direction from the first end of the resonant rod to the second end of the resonant rod.

In this design, the microwave module includes a microwave emission source and a microwave introduction section. The microwave emission source is used to generate microwaves. The microwave introduction section, which is provided on the side wall of the housing, is used to convey the microwaves generated by the microwave emission source into the resonant cavity. The microwaves are supplied to the resonant cavity via the microwave introduction section. The microwaves can then be transmitted in a direction from the first end of the resonant rod to the second end of the resonant rod. This allows the microwaves to act directly on the aerosol-generating substrate in the atomization chamber, improving the atomization effect of the aerosol-generating substrate.

In a possible design, the microwave introduction section includes a first introduction member provided on a side wall of the housing and connected to a microwave emission source, and a second introduction member having a first end connected to the first introduction member, located within the resonant cavity, and a second end facing the bottom wall of the resonant cavity.

In this design, the microwave introduction section includes a first introduction member and a second introduction member. The first introduction member is inserted into the side wall of the housing. The first end of the first introduction member is connected to a microwave emission source. Thus, microwaves generated by the microwave emission source enter the microwave introduction section from the first end of the first introduction member. The second end of the first introduction member is connected to the first end of the second introduction member. The second end of the second introduction member faces the bottom wall of the resonant cavity. After being transmitted via the first introduction member and the second introduction member, the microwaves are transmitted from the bottom wall of the resonant cavity to the atomization chamber, where the aerosol-generating substrate in the atomization chamber is atomized by microwave heating.

The first introduction section is provided coaxially with the microwave output end of the microwave emission source. The second introduction member has a horizontal introduction section and a vertical introduction section. The axis of the horizontal introduction section is parallel to the bottom wall of the resonant cavity, and the axis of the vertical introduction section is perpendicular to the bottom wall of the resonant cavity. The horizontal introduction section is connected to the vertical introduction section via a bent section. The horizontal introduction section is also provided coaxially with the first introduction section. By providing the microwave introduction section as described above, all microwaves generated by the microwave emission source can enter the resonant cavity and be transmitted within the resonant cavity by the resonant rod.

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

In this design, the aerosol device further includes a recess. The recess is disposed in the bottom wall of the resonant cavity. The recess is disposed opposite the second end of the second introduction member, and the second end of the second introduction member extends into the recess. This allows the microwaves entering the resonant cavity to be transmitted in a direction from the second end to the first end of the resonant rod, thereby reducing energy loss during the microwave transmission process.

In a possible design, the microwave introduction section includes a third introduction member disposed on a side wall of the housing. A first end of the third introduction member is connected to the microwave emission source, and a second end of the third introduction member faces the resonant rod.

In this design, the microwave introduction section further includes a third introduction member. The third introduction member is arranged coaxially with the microwave output end of the microwave emission source. A first end of the third introduction member is connected to the microwave emission source, and a second end of the third introduction member faces the resonant rod. By arranging the third introduction member coaxially with the microwave output end of the microwave emission source and connecting the third introduction member to the resonant rod, microwaves are transmitted directly to the resonant rod. This allows all microwaves output from the microwave emission source to enter the resonant cavity.

The above and/or additional aspects and advantages of the present application will become apparent and be easily understood from the following description of the embodiments in combination with the drawings.

FIG. 1 shows a schematic structural diagram of an aerosol generating device according to one embodiment of the present application. FIG. 2 is a partial enlarged view of part A of the aerosol generating device shown in FIG. FIG. 3 shows a schematic structural diagram 2 of an aerosol generating device in one embodiment of the present application. FIG. 4 shows a schematic structural diagram 1 of a mounting portion of an aerosol generating device according to one embodiment of the present application. FIG. 5 shows a schematic structural diagram 2 of the mounting portion of the aerosol generating device in one embodiment of the present application. FIG. 6 shows a schematic structural diagram 1 of a mounting portion of an aerosol generating device in another embodiment of the present application. FIG. 7 shows a schematic structural diagram 2 of a mounting portion of an aerosol generating device in another embodiment of the present application. FIG. 8 shows a schematic structural diagram 1 of a mounting portion of an aerosol generating device in another embodiment of the present invention. FIG. 9 shows a schematic structural diagram 2 of the mounting portion of the aerosol generating device in another embodiment of the present application. FIG. 10 shows a schematic structural diagram 3 of an aerosol generating device in one embodiment of the present application.

In order to make the above-mentioned 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.

In the following description, many 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. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

Below, aerosol devices based on several embodiments of the present application are described with reference to Figures 1 to 10.

As shown in Figures 1 and 3, one embodiment of the present application provides an aerosol generating device 100 including a housing 110, a microwave module 130, a mounting portion 140, and a pressure sensor 150.

The housing 110 includes a resonant cavity 120.

The microwave module 130 is provided in the housing 110. The microwave module 130 is used to supply microwaves into the resonant cavity 120.

The mounting portion 140 is provided on the housing 110. At least a portion of the mounting portion 140 is located within the resonant cavity 120. The mounting portion 140 includes an atomization chamber 143. The atomization chamber 143 is used to accommodate an aerosol-generating substrate.

The pressure sensor 150 is mounted on the housing 110 and is located outside the resonant cavity 120. The collection end of the pressure sensor 150 is in communication with the nebulization chamber 143 and is used to collect the air pressure value within the nebulization chamber 143.

The aerosol generating device 100 provided in this embodiment includes a housing 110, a microwave module 130, a mounting portion 140, and a pressure sensor 150. A resonant cavity 120 is provided in the housing 110. The microwave output end of the microwave module 130 is connected to the resonant cavity 120, and the microwaves generated by the microwave module 130 are supplied into the resonant cavity 120. The mounting portion 140 is provided in the housing 110. An atomization chamber 143 is provided inside the mounting portion 140. The atomization chamber 143 is used to accommodate the aerosol-generating substrate. The microwave module 130 supplies microwaves into the resonant cavity 120 and transmits them to the mounting portion 140 via the resonant cavity 120, thereby microwave-heating the aerosol-generating substrate in the atomization chamber 143.

The mounting portion 140 isolates the resonant cavity 120 from the atomization chamber 143, thereby making it possible to prevent liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber 143 from entering the resonant cavity 120. This prevents the aerosol generating device 100 from breaking down due to debris entering the resonant cavity 120.

The aerosol generating device 100 further includes a pressure sensor 150. The collection end of the pressure sensor 150 is connected to the atomization chamber 143. The pressure sensor 150 can collect the air pressure value in the atomization chamber 143. By providing the pressure sensor 150 in the housing 110 and positioning the pressure sensor 150 outside the resonant cavity 120, the pressure sensor 150 is not affected by the microwaves transmitted in the resonant cavity 120. By collecting the change in the air pressure value in the atomization chamber 143 with the pressure sensor 150, it is possible to detect whether the aerosol generating device 100 is in an inhalation state based on the change in the air pressure value in the atomization chamber 143. Then, the operation of the microwave module 130 is controlled based on the inhalation state of the aerosol generating device 100.

In some embodiments, when it is detected that the aerosol generating device 100 is in an inhalation state, the microwave module 130 is operated to control the aerosol-generating substrate in the atomization chamber 143 to be atomized by microwave heating. When the aerosol generating device 100 is not in an inhalation state, the operation of the microwave module 130 is stopped to control the aerosol-generating substrate in the atomization chamber 143 not to continue to be atomized by heating.

In some other embodiments, when the aerosol generating device 100 receives a preheat control command in an activated state, it controls the microwave module 130 to operate at the first power until the indoor temperature value of the atomization chamber 143 falls within the range of the set temperature value. This maintains the indoor temperature value within the range of the set temperature value, thereby enabling the preheating effect on the aerosol-generating substrate in the atomization chamber 143 to be exerted. In addition, it detects whether the aerosol generating device 100 is in an inhalation state, and adjusts the first power based on the inhalation state of the aerosol generating device 100. Specifically, when it is detected that the aerosol generating device 100 is in an inhalation state, it controls the microwave module 130 to operate at the second power to rapidly increase the temperature in the atomization chamber 143. As a result, the aerosol-generating substrate is rapidly heated and atomized, generating an aerosol. Note that the second power is greater than the first power. On the other hand, when it is detected that the aerosol generating device 100 is not in an inhalation state, it controls the microwave module 130 to maintain operation at the first power and continue to preheat the aerosol-generating substrate.

In the present application, the pressure sensor 150 collects the air pressure value in the atomization chamber 143 to detect whether the aerosol generating device 100 is in an inhalation state, and the operation of the microwave module 130 is controlled based on the inhalation state. As a result, after the user stops inhaling, the microwave module 130 can be immediately controlled to stop operating, thereby avoiding waste of electrical energy and aerosol-generating substrate. In addition, since a preheating effect is realized on the aerosol-generating substrate when the aerosol device 100 is in a non-inhalation state, it is possible to rapidly heat the aerosol-generating substrate to the atomization temperature in the inhalation state. This reduces energy consumption and improves the atomization efficiency of the aerosol-generating substrate, and further improves the degree of atomization of the aerosol-generating substrate, improving the user experience.

In addition, the aerosol generating device 100 in the above technical solution provided by the present application may further have the following additional technical features:

As shown in Figures 1 and 3, in any of the above embodiments, the mounting portion 140 includes a base body 141, a guide member 142, and an atomization chamber 143.

The atomization chamber 143 is provided within the base body 141.

One end of the guide member 142 is connected to the base body 141 and communicates with the atomization chamber 143. The other end of the guide member 142 is connected to the collection end of the pressure sensor 150.

In this embodiment, the mounting portion 140 includes a base body 141 and a guide member 142. The base body 141 is provided in the housing 110. The base body 141 and the atomization chamber 143 surround and form the resonant cavity 120. The guide member 142 is inserted into the housing 110. One end of the guide member 142 is connected to the base body 141. The guide member 142 is connected to the atomization chamber 143. The other end of the guide member 142 extends to the outside of the housing 110 and is connected to the pressure sensor 150. The guide member 142 connects the atomization chamber 143 to the pressure sensor 150 outside the housing 110, allowing the pressure sensor 150 to directly collect the indoor pressure value of the atomization chamber 143.

As shown in FIG. 1, in any of the above embodiments, the guide member 142 includes a first tube 1422 and a second tube 1424.

The first pipe material 1422 is integrally molded with the base body 141.

The second tube 1424 is provided in the housing 110. A first end of the second tube 1424 passes through the housing 110 and is connected to the first tube 1422. A second end of the second tube 1424 is connected to the pressure sensor 150. The collection end of the pressure sensor 150 is located within the second tube 1424.

In this embodiment, the guide member 142 includes a first pipe 1422 and a second pipe 1424. The first pipe 1422 is connected to the base body 141. The second pipe 1424 is provided on the side wall of the housing 110. The second pipe 1424 penetrates the housing 110 and is connected to the first pipe 1422. One end of the second pipe 1424 located outside the housing 110 is connected to the pressure sensor 150. By providing the guide member 142 so that the first pipe 1422 and the second pipe 1424 are connected, the assembly process of the aerosol generating device 100 can be simplified. In addition, it is convenient to disassemble and clean the mounting part 140 separately.

The first pipe 1422 is molded integrally with the base body 141, further reducing the number of assembly steps. The second pipe 1424 is attached to the housing 110 by a fixing member. The fixing member can be a fastening member such as a screw or a rivet.

The assembly steps of the guide member 142 and the mounting part 140 include the following: That is, the base body 141 with the first pipe material 1422 integrally molded therewith is inserted into the inside of the housing 110. Next, the second pipe material 1424 is inserted into the side wall of the housing 110, and the second pipe material 1424 and the first pipe material 1422 are inserted and connected. This allows the first pipe material 1422 and the second pipe material 1424 to communicate with the atomization chamber 143 in the base body 141, and ensures the sealing performance of the connection between the first pipe material 1422 and the second pipe material 1424. Then, the second pipe material 1424 is fixed to the side wall of the housing 110 by a fastening member, thereby completing the assembly process of the guide member 142 and the mounting part 140. By providing a first pipe 1422 and a second pipe 1424 on the inside and outside of the housing 110, respectively, and connecting the first pipe 1422 and the second pipe 1424 to each other, it is possible to simplify the assembly steps of the guide member 142 while ensuring the sealing performance of the guide member 142.

In any of the above embodiments, the mounting portion 140 further includes an opening. The opening is provided at one end of the base body 141. The opening is in communication with the atomization chamber 143. The opening is used to allow the aerosol-generating substrate to enter the atomization chamber 143.

In this embodiment, the mounting portion 140 further includes an opening provided at one end of the base body 141. The opening faces the outside of the housing 110. The opening communicates with the atomization chamber 143 and is used to load the aerosol-generating substrate into the atomization chamber 143 through the opening.

As can be seen, the aerosol-generating substrate is provided with an inhalation portion. The inhalation portion protrudes from the atomization chamber 143 through an opening, and a user can inhale the aerosol-generating substrate through the inhalation portion.

As shown in FIG. 3, in any of the above embodiments, the aerosol generating device 100 further includes a first through hole 160.

The first through hole 160 is provided in the housing 110, and the resonant cavity 120 is connected to the outside through the first through hole 160.

The mounting portion 140 further includes a second through hole 144 provided in the base body 141. The atomization chamber 143 is in communication with the resonant cavity 120 through the second through hole 144.

In this embodiment, the aerosol generating device 100 includes a first through hole 160 and a second through hole 144. The first through hole 160 is provided in the housing 110 and connects the resonant cavity 120 to the outside of the housing 110. The second through hole 144 is provided in the base body 141 and connects the resonant cavity 120 to the atomization chamber 143. When a user inhales through the inhalation part of the aerosol generating substrate, gas outside the housing 110 passes through the first through hole 160, the resonant cavity 120, the second through hole 144, the atomization chamber 143, and the aerosol generating substrate in this order. Then, the precipitates produced by the aerosol generating substrate receiving heat are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. This creates a gas flow path, which allows air from outside the housing 110 to be constantly replenished into the atomization chamber 143 during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. It also prevents the airflow from being too small, which can cause the aerosol-generating substrate to encounter excessive resistance to inhalation, improving the user experience.

As shown in Figures 4 and 5, in any of the above embodiments, the mounting portion 140 further includes at least two protrusions 145.

At least two protrusions 145 are provided on the inner wall of the atomization chamber 143. At least two protrusions 145 protrude from the inner wall of the atomization chamber 143. A gap is provided between two adjacent protrusions 145 of the at least two protrusions 145. The at least two protrusions 145 are used to fix the aerosol-generating substrate.

In this embodiment, the attachment portion 140 further includes at least two protrusions 145 provided on the inner wall of the atomization chamber 143. The at least two protrusions 145 are capable of fixing the aerosol-generating substrate. When the aerosol-generating substrate is inserted into the atomization chamber 143 through the opening, the at least two protrusions 145 abut against the outer wall of the aerosol-generating substrate, thereby fixing the aerosol-generating substrate. This prevents the aerosol-generating substrate from slipping out of the atomization chamber 143.

Of the at least two protrusions 145, two adjacent protrusions 145 are spaced apart. An airflow path is formed by the gap between the two adjacent protrusions 145 and the gap between the aerosol-generating substrate and the side wall of the atomization chamber 143.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing 110 passes through the gap between two adjacent protrusions 145, the gap between the aerosol-generating substrate and the side wall of the atomization chamber 143, and the aerosol-generating substrate in that order. Then, precipitates produced when the aerosol-generating substrate receives heat are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. This allows air outside the housing 110 to be constantly replenished into the atomization chamber 143 during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, improving the user experience.

In any of the above embodiments, at least two protrusions 145 are located on the inner wall of the atomization chamber 143 adjacent to the opening. Also, the at least two protrusions 145 are uniformly distributed around the circumference of the atomization chamber 143.

In this embodiment, at least two protrusions 145 are uniformly arranged along the axial direction of the atomization chamber 143. The uniformly distributed protrusions 145 can exert a good fixing effect on the aerosol-generating substrate, thereby preventing the aerosol-generating substrate from falling out of the atomization chamber 143 during the inhalation process. In addition, the aerosol-generating substrate generates some dust during the inhalation process, but since at least two protrusions 145 are arranged at one end close to the opening, the user can easily clean the dust adhering to the protrusions 145. This prevents the gaps between the protrusions 145 from being clogged with dust, improving the stability of the operation of the aerosol generating device 100.

As shown in Figures 6 and 7, in any of the above embodiments, the mounting portion 140 further includes a recessed groove 146.

The groove 146 is provided on the inner wall of the atomization chamber 143. The groove 146 also extends along the center line of the atomization chamber 143.

In this embodiment, the attachment portion 140 further includes a groove 146 provided on the inner wall of the atomization chamber 143. After the aerosol-generating substrate is inserted into the atomization chamber 143 through the opening, the aerosol-generating substrate comes into contact with the inner wall of the atomization chamber 143, so that the frictional force between the inner wall of the atomization chamber 143 and the aerosol-generating substrate can prevent the aerosol-generating substrate from falling out of the atomization chamber 143.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing 110 passes through the groove 146 and the aerosol-generating substrate in that order. Then, when the aerosol-generating substrate is heated, precipitates mix with the gas to form an aerosol, and the aerosol formed is discharged from the inhalation part. This allows air outside the housing 110 to be constantly replenished into the atomization chamber 143 during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to the airflow being too small, improving the user experience.

In any of the above embodiments, the number of grooves 146 is at least two. Furthermore, the at least two grooves 146 are uniformly distributed along the circumferential direction of the atomization chamber 143.

In this embodiment, the multiple grooves 146 are uniformly distributed on the inner circumferential side wall of the atomization chamber 143, allowing the outside air to come into uniform contact with the aerosol-generating substrate. This allows the precipitate of the aerosol-generating substrate to mix sufficiently with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

As can be seen, the suction resistance of the aerosol generating device 100 can be adjusted by rationally setting the number and inner diameter of the grooves 146.

As shown in Figures 8 and 9, in any of the above embodiments, the mounting portion 140 further includes a spacer 147.

The spacer 147 is provided in the nebulization chamber 143. The spacer 147 divides the nebulization chamber 143 into a first chamber 1432 and a second chamber 1434. The first chamber 1432 is in communication with the second chamber 1434. The first chamber 1432 is used to contain the aerosol-generating substrate.

In this embodiment, the attachment portion 140 further includes a spacer 147 disposed within the nebulization chamber 143. The spacer 147 divides the nebulization chamber 143 into a first chamber 1432 and a second chamber 1434 that communicate with each other. The first chamber 1432 is used to contain the aerosol-generating substrate, and the second chamber 1434 communicates with the air outside the nebulization chamber 143.

When a user inhales through the inhalation part of the aerosol-generating substrate, air outside the housing 110 passes through the second chamber 1434, the first chamber 1432, and the aerosol-generating substrate in that order. That is, the air passes through the second chamber 1434 and enters the first chamber 1432, and comes into contact with the aerosol-generating substrate. Then, the precipitates produced by the heat of the aerosol-generating substrate are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. As a result, during the inhalation process of the aerosol-generating substrate, air outside the housing 110 can be constantly replenished into the atomization chamber 143, and the aerosol-generating substrate can be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, thereby improving the user experience.

In any of the above embodiments, the first chamber 1432 and the second chamber 1434 are distributed in a concentric ring shape. Also, the second chamber 1434 is located outside the first chamber 1432.

In this embodiment, the second chamber 1434 is provided in an annular shape outside the first chamber 1432, so that the air passes through the second chamber 1434 and then uniformly enters the first chamber 1432 from the outside. This allows the outside air to come into uniform contact with the aerosol-generating substrate, so that the precipitate of the aerosol-generating substrate can be sufficiently mixed with the air to form an aerosol. This improves the atomization effect of the aerosol-generating substrate.

In any of the above embodiments, the mounting portion 140 further includes a third through hole.

The third through hole is provided in the spacer 147. The third through hole is located at one end of the spacer 147 that is connected to the bottom wall of the atomization chamber 143.

In this embodiment, the mounting portion 140 further includes a third through hole. The third through hole is provided in the spacer 147, and connects the first chamber 1432 and the second chamber 1434 through the third through hole.

In any of the above embodiments, the mounting portion 140 further includes a support portion.

The support portion is provided on the bottom wall of the atomization chamber 143. The support portion protrudes from the bottom wall of the atomization chamber 143.

In this embodiment, the attachment portion 140 further includes a support portion provided on the bottom wall of the atomization chamber 143. The support portion supports the aerosol-generating substrate, thereby creating a gap between the aerosol-generating substrate and the bottom wall of the atomization chamber 143. This allows air entering the atomization chamber 143 from the outside to come into contact with the bottom end of the aerosol-generating substrate, further improving the mixing effect between the air and the precipitate formed when the aerosol-generating substrate is heated. This allows the precipitate of the aerosol-generating substrate to be sufficiently mixed with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

In any of the above embodiments, the housing 110 includes a main body 112 and an end cover 114.

The end cover 114 is removably connected to the main body 112. The mounting portion 140 is inserted into the end cover 114. The end cover 114 and the main body 112 surround the resonant cavity 120.

In this embodiment, the housing 110 includes a main body 112 and an end cover 114. The mounting portion 140 is provided on the end cover 114, and the end cover 114 is removably connected to the main body 112. This makes it convenient for a user to remove the end cover 114 and disassemble and clean the mounting portion 140 separately, thereby avoiding breakdowns caused by water getting in when cleaning the entire aerosol generating device 100.

In any of the above embodiments, the aerosol generating device 100 further includes a resonating rod 170.

The resonant rod 170 is provided within the resonant cavity 120. A first end of the resonant rod 170 is connected to the bottom wall of the cavity wall of the resonant cavity 120, and a second end of the resonant rod 170 is provided facing the mounting portion 140.

In this embodiment, the resonant rod 170 is used for resonant transmission of microwaves. The first end of the resonant rod 170 is connected to the bottom wall of the resonant cavity 120, and the second end of the resonant rod 170 is arranged to face the mounting part 140. The microwaves supplied by the microwave module 130 to the resonant cavity 120 are transmitted from the first end to the second end of the resonant rod 170, thereby microwave heating the aerosol-generating substrate in the atomization chamber 143 of the mounting part 140.

The atomization chamber 143 and the resonant cavity 120 are isolated by the mounting portion 140, so that liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber 143 can be prevented from entering the resonant cavity 120. This prevents the microwave module 130 from failing due to debris entering the resonant cavity 120.

In some embodiments, the inner walls of the resonant cavity 120 and the resonant rod 170 are made of a conductive material, which may be a metallic material such as gold, copper, or silver.

In some embodiments, the inner wall of the resonant cavity 120 and the outer wall of the resonant rod 170 are provided with a conductive coating layer. The conductive coating layer may be selected from metal coating layers such as a gold-plated layer, a copper-plated layer, or a silver-plated layer.

In these embodiments, a metal with high stability and excellent electrical conductivity is selected to provide the resonant cavity 120 and the resonant rod 170. This not only prevents microwaves from leaking out, but also prevents the inner wall of the resonant cavity 120 and the resonant rod 170 from rusting.

In some embodiments, the portion of the mounting portion 140 located inside the resonant cavity 120 is made of a material with low dielectric loss, such as a PTFE material (polytetrafluoroethylene material), a glass material, or a ceramic material. This allows microwaves to be transmitted to the atomization chamber 143 inside the mounting portion 140, thereby heating the aerosol-generating substrate in the atomization chamber 143 with microwaves and generating an aerosol.

In some embodiments, the mounting portion 140 is removably connected to the housing 110.

In these embodiments, the atomization chamber 143 for containing the aerosol-generating substrate is provided within the attachment portion 140. Therefore, the atomization chamber 143 can be disassembled and cleaned separately by removing the attachment portion 140, improving the user experience.

As shown in Figures 1 and 2, in any of the above embodiments, the resonating rod 170 is spaced apart from the mounting portion 140.

In this embodiment, by providing a gap between the resonating rod 170 and the mounting portion 140, it is possible to prevent the resonating rod 170 from being pressed during the process of assembling the mounting portion 140 to the housing 110. This reduces the requirements for production and assembly precision of the resonating rod 170 and the mounting portion 140.

As shown in FIG. 1, in any of the above embodiments, the aerosol generating device 100 further includes a fixing part 180 that is provided on the mounting part 140 and is located within the resonant cavity 120. The fixing part 180 includes a position restriction chamber, and at least a portion of the resonant rod 170 is located within the position restriction chamber.

In this embodiment, the aerosol generating device 100 further includes a fixing part 180 provided on the mounting part 140. A position restriction chamber is provided within the fixing part 180, and at least a portion of the resonating rod 170 is located within the position restriction chamber. The fixing part 180 provides a certain degree of vibration isolation for the resonating rod 170 by fixing the resonating rod 170 via the position restriction chamber. This prevents the resonating rod 170 from falling off due to vibration.

In some embodiments, the fixing portion 180 and the mounting portion 140 are integrally molded.

In these embodiments, the fixing portion 180 and the mounting portion 140 are formed as a single unit and have a high bonding strength, improving the stabilization effect of the fixing portion 180 on the resonating rod 170.

As shown in Figures 1 and 2, in any of the above embodiments, the axis of the atomization chamber 143 and the axis of the resonant rod 170 are coaxial.

In this embodiment, the atomization chamber 143 and the resonant rod 170 are arranged coaxially, so it is possible to ensure that the microwaves transmitted to the atomization chamber 143 via the resonant rod 170 are transmitted to the central position of the atomization chamber 143. This improves the uniformity when the microwaves heat the aerosol-generating substrate in the atomization chamber 143, and prevents uneven heating of the aerosol-generating substrate caused by the concentration of microwaves in the atomization chamber 143, thereby further improving the atomization effect of the aerosol-generating substrate.

As shown in Figures 1 and 2, in any of the above embodiments, the microwave module 130 includes a microwave introduction section 132.

The microwave introduction section 132 is provided on the side wall of the housing 110. The microwave introduction section 132 is connected to the resonant cavity 120. In addition, a microwave emission source 134 is connected to the microwave introduction section 132. The microwaves output from the microwave emission source 134 are supplied to the resonant cavity 120 via the microwave introduction section 132. As a result, the microwaves are transmitted in a direction from the first end of the resonant rod 170 to the second end of the resonant rod 170.

In this embodiment, the microwave module 130 includes a microwave emission source 134 and a microwave introduction section 132. The microwave emission source 134 is used to generate microwaves. The microwave introduction section 132 provided on the side wall of the housing 110 is used to transport the microwaves generated by the microwave emission source 134 into the resonant cavity 120. The microwaves are supplied to the resonant cavity 120 via the microwave introduction section 132. The microwaves can then be transmitted in a direction from the first end of the resonant rod 170 to the second end of the resonant rod 170. This allows the microwaves to act directly on the aerosol-generating substrate in the atomization chamber 143, improving the atomization effect of the aerosol-generating substrate.

As shown in FIG. 1, in any of the above embodiments, the microwave introduction section 132 includes a first introduction member 1322 and a second introduction member 1324.

The first introduction member 1322 is provided on the side wall of the housing 110. The first introduction member 1322 is also connected to the microwave emission source 134.

A first end of the second introduction member 1324 is connected to the first introduction member 1322. The second introduction member 1324 is located within the resonant cavity 120. Furthermore, the second end of the second introduction member 1324 faces the bottom wall of the resonant cavity 120.

In this embodiment, the microwave introduction section 132 includes a first introduction member 1322 and a second introduction member 1324. The first introduction member 1322 is inserted into the side wall of the housing 110. The first end of the first introduction member 1322 is connected to the microwave emission source 134. As a result, the microwaves generated by the microwave emission source 134 enter the microwave introduction section 132 from the first end of the first introduction member 1322. The second end of the first introduction member 1322 is connected to the first end of the second introduction member 1324. The second end of the second introduction member 1324 faces the bottom wall of the resonant cavity 120. After being transmitted via the first introduction member 1322 and the second introduction member 1324, the microwaves are transmitted from the bottom wall of the resonant cavity 120 to the atomization chamber 143, and the aerosol-generating substrate in the atomization chamber 143 is atomized by microwave heating.

The first introduction section is provided coaxially with the microwave output end of the microwave emission source 134. The second introduction member has a horizontal introduction section and a vertical introduction section. The axis of the horizontal introduction section is parallel to the bottom wall of the resonant cavity 120, and the axis of the vertical introduction section is perpendicular to the bottom wall of the resonant cavity 120. The horizontal introduction section is connected to the vertical introduction section via a bent section. The horizontal introduction section is also provided coaxially with the first introduction section. By providing the microwave introduction section 132 as described above, all of the microwaves generated by the microwave emission source 134 can enter the resonant cavity 120 and be transmitted within the resonant cavity 120 by the resonant rod 170.

As shown in FIG. 2, in any of the above embodiments, the aerosol generating device 100 further includes a recess 190.

A recess 190 is provided in the bottom wall of the resonant cavity 120, and the second end of the second introduction member is located within the recess 190.

In this embodiment, the aerosol device 100 further includes a recess 190. The recess 190 is provided in the bottom wall of the resonant cavity 120. The recess 190 is provided opposite the second end of the second introduction member, and the second end of the second introduction member extends into the recess 190. This allows the microwaves that have entered the resonant cavity 120 to be transmitted in a direction from the second end to the first end of the resonant rod 170, thereby reducing energy loss during the microwave transmission process.

As shown in FIG. 10, in any of the above embodiments, the microwave introduction section 132 includes a third introduction member 1326.

The third introduction member 1326 is provided on the side wall of the housing 110. A first end of the third introduction member 1326 is connected to the microwave emission source 134, and a second end of the third introduction member 1326 faces the resonant rod 170.

In this embodiment, the microwave introduction section 132 further includes a third introduction member 1326. The third introduction member 1326 is provided coaxially with the microwave output end of the microwave emission source 134. A first end of the third introduction member 1326 is connected to the microwave emission source 134, and a second end of the third introduction member 1326 faces the resonant rod 170. By providing the third introduction member 1326 coaxially with the microwave output end of the microwave emission source 134 and connecting the third introduction member 1326 to the resonant rod 170, the microwaves are directly transmitted to the resonant rod 170. As a result, all of the microwaves output from the microwave emission source 134 are allowed to enter the resonant cavity 120.

For clarity, in the claims, specification and drawings of this application, the term "multiple" means two or more than two. In addition, unless otherwise expressly limited, the directions or positional relationships indicated by terms such as "upper", "lower", etc. are based on the illustrations, and are merely intended to make this application easier to describe and to simplify the description process, and are not intended to expressly or imply that the subject device or component must have the specific direction described and be constructed and operated in the specific direction. Therefore, these descriptions should not be construed as restricting this application. In addition, terms such as "connect", "attach", and "fix" should all be interpreted broadly. For example, "connect" may mean a fixed connection between multiple objects, or a removable or integral connection between multiple objects. In addition, it may be a direct connection between multiple objects, or an indirect connection between multiple objects via an intermediate medium. Those skilled in the art can interpret the specific meaning of the above terms in this application based on the specific circumstances of the above data.

In the claims, specification and drawings of this application, the description of "one embodiment," "several embodiments," "specific embodiment," 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 the claims, specification and drawings of this application, 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.

The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art may have various modifications and variations of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

REFERENCE SIGNS LIST 100 Aerosol generating device 110 Housing 112 Main body 114 End cover 120 Resonant cavity 130 Microwave module 132 Microwave introduction section 1322 First introduction member 1324 Second introduction member 1326 Third introduction member 134 Microwave emission source 140 Mounting section 141 Base body 142 Guide member 1422 First pipe member 1424 Second pipe member 143 Atomization chamber 1432 First chamber 1434 Second chamber 144 Second through hole 145 Protrusion 146 Groove 147 Spacer 150 Pressure sensor 160 First through hole 170 Resonant rod 180 Fixing section 190 Recessed section

This application is in the technical field of electronic atomization, and more specifically, relates to an aerosol generating device.

A heat not burning (HNB) device is an electronic device that heats an aerosol-generating substrate (a treated plant leaf product) without burning it. The heat not burning device heats the aerosol-generating substrate to a high temperature that can generate an aerosol but does not result in combustion, allowing the aerosol-generating substrate to generate the aerosol desired by the user, without burning the substrate.

Currently, HNB devices on the market mainly adopt a resistance heating method. That is, a central heating tip or a central heating needle is inserted into the aerosol-generating substrate from the center thereof to heat it. Such devices require preheating before use, so the standby 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 cause 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 contact with the heating element becomes too high, 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 only has a heating effect on materials with specific dielectric properties. The application advantages of adopting microwave heating atomization include the following:

a. Microwave heating is radiation heating, not heat transfer, so it is possible to achieve instant inhalation and instant stopping.

b. Since it does not have a heating tip, there are no problems with tip breakage or cleaning the heating tip.

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.

However, conventional microwave-heated HNB devices cannot immediately control the microwave module to stop working after the user stops inhaling, resulting in waste of electrical energy and aerosol-generating substrates .

The purpose of this application is to solve one of the technical problems existing in the prior art or related art.

Therefore, the present application provides an aerosol generating device.

In view of the above, the present application provides an aerosol generating device. The aerosol generating device includes a housing including a resonant cavity, a microwave module provided in the housing and configured to supply microwaves into the resonant cavity, a mounting portion provided in the housing and at least a portion of which is located within the resonant cavity, the mounting portion including an atomization chamber, the atomization chamber being used to accommodate an aerosol-generating substrate, and a pressure sensor provided in the housing and located outside the resonant cavity, the collection end of which is in communication with the atomization chamber, and the pressure sensor being used to collect the air pressure value within the atomization chamber.

The aerosol generating device provided by the present application includes a housing, a microwave module, a mounting portion, and a pressure sensor. A resonant cavity is provided within the housing. The microwave output end of the microwave module is connected to the resonant cavity, and microwaves generated by the microwave module are supplied into the resonant cavity. The mounting portion is provided within the housing. An atomization chamber is provided inside the mounting portion. The atomization chamber is used to accommodate an aerosol-generating substrate. The microwave module supplies microwaves into the resonant cavity and transmits them to the mounting portion via the resonant cavity, thereby microwave-heating the aerosol-generating substrate in the atomization chamber.

The mounting section isolates the resonant cavity from the atomization chamber, making it possible to prevent liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber from entering the resonant cavity. This prevents the aerosol generating device from breaking down due to debris entering the resonant cavity.

The aerosol generating device further includes a pressure sensor. The collection end of the pressure sensor is connected to the atomization chamber. The pressure sensor is capable of collecting the air pressure value within the atomization chamber. By providing the pressure sensor in the housing and positioning the pressure sensor outside the resonant cavity, the pressure sensor is not affected by the microwaves transmitted within the resonant cavity. By collecting the change in the air pressure value within the atomization chamber with the pressure sensor, it is possible to detect whether the aerosol generating device is in an inhalation state based on the change in the air pressure value within the atomization chamber. Then, the operation of the microwave module is controlled based on the inhalation state of the aerosol generating device.

In some embodiments, when it is detected that the aerosol generating device is in an inhalation state, the microwave module is operated to control the aerosol-generating substrate in the atomization chamber to be atomized by microwave heating. Also, when the aerosol generating device is not in an inhalation state, the operation of the microwave module is stopped to control the aerosol-generating substrate in the atomization chamber not to continue to be atomized by heating.

In some other embodiments, when the aerosol generating device receives a preheat control command in an activated state, the aerosol generating device controls the microwave module to operate at a first power until the indoor temperature value of the atomization chamber falls within a range of a set temperature value. This allows the indoor temperature value to be maintained within a range of a set temperature value, thereby enabling the preheating effect on the aerosol-generating substrate in the atomization chamber to be exerted. In addition, the aerosol generating device detects whether or not the aerosol generating device is in an inhalation state, and adjusts the first power based on the inhalation state of the aerosol generating device. Specifically, when it is detected that the aerosol generating device is in an inhalation state, the microwave module is controlled to operate at a second power to rapidly increase the temperature in the atomization chamber. As a result, the aerosol-generating substrate is rapidly heated and atomized, generating an aerosol. Note that the second power is greater than the first power. On the other hand, when it is detected that the aerosol generating device is not in an inhalation state, the microwave module is controlled to maintain operation at the first power to continue preheating the aerosol-generating substrate.

In the present application, the pressure sensor collects the air pressure value in the atomization chamber to detect whether the aerosol generating device is in an inhalation state, and controls the operation of the microwave module based on the inhalation state. As a result, after the user stops inhaling, the microwave module can be immediately controlled to stop operating, thereby avoiding waste of electrical energy and aerosol-generating substrate. In addition, a preheating effect is realized on the aerosol-generating substrate when the aerosol generating device is in a non-inhalation state, so that the aerosol-generating substrate can be rapidly heated to the atomization temperature in the inhalation state. This reduces energy consumption and improves the atomization efficiency of the aerosol-generating substrate, and further improves the degree of atomization of the aerosol-generating substrate, improving the user experience.

In addition, the aerosol generating device in the above technical solution provided in accordance with the present application may further have the following additional technical features:

In a possible design, the mounting portion includes a base body in which the atomization chamber is provided, and a guide member having one end connected to the base body and the other end connected to the collection end of the pressure sensor.

In this design, the mounting portion includes a base body and a guide member. The base body is disposed within the housing. The base body and the atomization chamber surround and form a resonant cavity. The guide member is inserted into the housing. One end of the guide member is connected to the base body and communicates with the atomization chamber. The other end of the guide member extends to the outside of the housing and is connected to the pressure sensor. The guide member communicates the atomization chamber with the pressure sensor outside the housing, allowing the pressure sensor to directly collect the indoor pressure value of the atomization chamber.

In a possible design, the guide member includes a first tube integrally molded to the base body and a second tube mounted to the housing, the first end of which passes through the housing and is connected to the first tube, the second end of which is connected to the pressure sensor, the collection end of the pressure sensor being located within the second tube.

In this design, the guide member includes a first tube and a second tube. The first tube is in communication with the base body. The second tube is provided on a side wall of the housing. The second tube passes through the housing and is connected to the first tube. One end of the second tube located outside the housing is connected to the pressure sensor. By providing the guide member so that the first tube and the second tube are connected, the assembly process of the aerosol generating device can be simplified. It is also convenient to disassemble and clean the mounting part separately.

The first tube is molded integrally with the base body, further reducing the number of assembly steps. The second tube is attached to the housing by a fixing member. The fixing member can be a fastening member such as a screw or a rivet.

The assembly steps of the guide member and the mounting part include the following: That is, the base body with the first pipe integrally formed is inserted into the inside of the housing. Next, the second pipe is inserted into the side wall of the housing, and the second pipe and the first pipe are inserted and connected. This allows the first pipe and the second pipe to communicate with the atomization chamber in the base body, and ensures the sealing performance of the connection between the first pipe and the second pipe. Then, the second pipe is fixed to the side wall of the housing with a fastening member, completing the assembly process of the guide member and the mounting part. By providing the first pipe and the second pipe on the inside and outside of the housing, respectively, and connecting the first pipe and the second pipe to each other, it is possible to simplify the assembly steps of the guide member while ensuring the sealing performance of the guide member.

In a possible design, the mounting portion further includes an opening at one end of the base body. The opening communicates with the atomization chamber. The opening is used to allow the aerosol-generating substrate to enter the atomization chamber.

In this design, the mounting portion further includes an opening at one end of the base body. The opening faces the exterior of the housing. The opening communicates with the atomization chamber and is used to load the aerosol-generating substrate into the atomization chamber through the opening.

As can be seen, the aerosol-generating substrate is provided with an inhalation portion. The inhalation portion protrudes from the atomization chamber through an opening, and a user can inhale the aerosol-generating substrate through the inhalation portion.

In a possible design, the aerosol generating device further includes a first through hole provided in the housing, and the resonant cavity is in communication with the outside through the first through hole. The mounting portion further includes a second through hole provided in the base body, and the atomization chamber is in communication with the resonant cavity through the second through hole.

In this design, the aerosol generating device includes a first through hole and a second through hole. The first through hole is provided in the housing and connects the resonant cavity to the outside of the housing. The second through hole is provided in the base body and connects the resonant cavity to the atomization chamber. When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing passes through the first through hole, the resonant cavity, the second through hole, the atomization chamber, and the aerosol-generating substrate in this order. Then, the precipitates caused by the heat of the aerosol-generating substrate are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. As a result, a gas flow path is formed, and during the inhalation process of the aerosol-generating substrate, air outside the housing can be constantly replenished into the atomization chamber, and the aerosol-generating substrate can be sufficiently atomized. In addition, the situation in which the suction resistance of the aerosol-generating substrate becomes excessively large due to the airflow being too small can be avoided, improving the user experience.

In a possible design, the mounting portion further includes at least two protrusions provided on the inner wall of the mist chamber. The at least two protrusions protrude from the inner wall of the mist chamber. A gap is provided between two adjacent protrusions of the at least two protrusions. The at least two protrusions are used to secure the aerosol-generating substrate.

In this design, the mounting portion further includes at least two protrusions provided on the inner wall of the atomization chamber. The at least two protrusions are capable of exerting a fixing effect on the aerosol-generating substrate. When the aerosol-generating substrate is inserted into the atomization chamber through the opening, the at least two protrusions abut against the outer wall of the aerosol-generating substrate, thereby fixing the aerosol-generating substrate. This prevents the aerosol-generating substrate from slipping out of the atomization chamber.

Of the at least two protrusions, two adjacent protrusions are spaced apart. An airflow path is formed by the gap between the two adjacent protrusions and the air gap between the aerosol-generating substrate and the side wall of the atomization chamber.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing passes through the gap between two adjacent protrusions, the gap between the aerosol-generating substrate and the side wall of the atomization chamber, and then through the aerosol-generating substrate. Then, when the aerosol-generating substrate receives heat, precipitates mix with the gas to form an aerosol, and the aerosol formed is discharged from the inhalation part. This makes it possible to constantly replenish air from outside the housing into the atomization chamber during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. It also makes it possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, improving the user experience.

In a possible design, at least two protrusions are located on the inner wall of the atomization chamber adjacent to the opening. Also, the at least two protrusions are uniformly distributed around the circumference of the atomization chamber.

In this design, at least two protrusions are uniformly arranged along the axial direction of the atomization chamber. The uniformly distributed protrusions can provide a good fixing effect on the aerosol-generating substrate, preventing the aerosol-generating substrate from falling out of the atomization chamber during the inhalation process. In addition, the aerosol-generating substrate generates some dust during the inhalation process, but since at least two protrusions are arranged at one end close to the opening, the user can easily clean the dust adhering to the protrusions. This prevents dust from clogging the gaps between the protrusions, improving the stability of the operation of the aerosol generating device.

In a possible design, the mounting portion further includes a groove. The groove is provided on the inner wall of the atomization chamber and extends along the center line of the atomization chamber.

In this design, the mounting portion further includes a groove provided on the inner wall of the atomization chamber. After the aerosol-generating substrate is inserted into the atomization chamber through the opening, the aerosol-generating substrate comes into contact with the inner wall of the atomization chamber, so that the friction between the inner wall of the atomization chamber and the aerosol-generating substrate can prevent the aerosol-generating substrate from falling out of the atomization chamber.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing passes through the groove and the aerosol-generating substrate in that order. Then, when the aerosol-generating substrate receives heat, precipitates mix with the gas to form an aerosol, and the aerosol formed is discharged from the inhalation part. This makes it possible to constantly replenish air from outside the housing into the atomization chamber during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. It also makes it possible to avoid situations where the inhalation resistance of the aerosol-generating substrate becomes excessively large due to the airflow being too small, improving the user experience.

In a possible design, the number of grooves is at least two. Also, the at least two grooves are evenly distributed around the circumference of the atomization chamber.

In this design, the multiple grooves are evenly distributed on the inner peripheral side wall of the atomization chamber, allowing the outside air to come into uniform contact with the aerosol-generating substrate. This allows the precipitate of the aerosol-generating substrate to mix sufficiently with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

As can be seen, by rationally setting the number and inner diameter of the grooves, it is possible to adjust the suction resistance of the aerosol generating device.

In a possible design, the attachment further includes a spacer disposed in the nebulization chamber. The spacer divides the nebulization chamber into a first chamber and a second chamber. The first chamber is in communication with the second chamber. The first chamber is used to contain the aerosol-generating substrate.

In this design, the attachment further includes a spacer disposed within the nebulization chamber. The spacer divides the nebulization chamber into a first chamber and a second chamber that are in communication with each other. The first chamber is used to contain the aerosol-generating substrate, and the second chamber is in communication with the air outside the nebulization chamber.

When a user inhales through the inhalation part of the aerosol-generating substrate, air outside the housing passes through the second chamber, the first chamber, and the aerosol-generating substrate in that order. That is, the air passes through the second chamber, enters the first chamber, and comes into contact with the aerosol-generating substrate. Then, when the aerosol-generating substrate is heated, precipitates mix with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. As a result, during the inhalation process of the aerosol-generating substrate, air outside the housing can be constantly replenished into the atomization chamber, and the aerosol-generating substrate can be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, thereby improving the user experience.

In a possible design, the first and second chambers are distributed in a coaxial annular fashion, with the second chamber located outside the first chamber.

In this design, the second chamber is provided in an annular shape outside the first chamber, so that the air passes through the second chamber and then uniformly enters the first chamber from the outside. This allows the outside air to come into uniform contact with the aerosol-generating substrate, so that the precipitate on the aerosol-generating substrate can be sufficiently mixed with the air to form an aerosol. This improves the atomization effect of the aerosol-generating substrate.

In a possible design, the mounting portion further includes a third through hole provided in the spacer. The third through hole is located at one end of the spacer that is connected to the bottom wall of the atomization chamber.

In this design, the mounting portion further includes a third through hole. The third through hole is provided in the spacer and provides communication between the first chamber and the second chamber.

In a possible design, the mounting portion further includes a support portion provided on the bottom wall of the atomization chamber. The support portion protrudes from the bottom wall of the atomization chamber.

In this design, the mounting portion further includes a support portion provided on the bottom wall of the atomization chamber. The support portion supports the aerosol-generating substrate, thereby creating a gap between the aerosol-generating substrate and the bottom wall of the atomization chamber. This allows air entering the atomization chamber from the outside to come into contact with the bottom end of the aerosol-generating substrate, further improving the mixing effect between the air and the precipitate formed when the aerosol-generating substrate is heated. This allows the precipitate of the aerosol-generating substrate to be sufficiently mixed with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

In a possible design, the housing includes a body and an end cover removably connected to the body, with the mounting portion inserted into the end cover, and the end cover and body enclosing the resonant cavity.

In this design, the housing includes a main body and an end cover. The mounting portion is provided on the end cover, and the end cover is removably connected to the main body. This makes it convenient for a user to remove the end cover and disassemble and clean the mounting portion separately, thus avoiding failures caused by water ingress when cleaning the entire aerosol generating device.

In a possible design, the aerosol generating device further comprises a resonant rod disposed within the resonant cavity, a first end of the resonant rod being connected to a bottom wall of the cavity wall of the resonant cavity, and a second end of the resonant rod being disposed to correspond to the mounting portion.

In this design, a resonant rod is used for resonant transmission of microwaves, a first end of the resonant rod is connected to the bottom wall of the resonant cavity, and a second end of the resonant rod is provided corresponding to the mounting part, and the microwaves supplied by the microwave module into the resonant cavity are transmitted from the first end to the second end of the resonant rod to microwave-heat the aerosol-generating substrate in the atomization chamber of the mounting part.

The atomization chamber and the resonant cavity are isolated by the mounting portion, so that liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber can be prevented from entering the resonant cavity. This prevents the microwave module from failing due to debris entering the resonant cavity.

In some embodiments, the inner walls of the resonant cavity and the resonant rod are made of a conductive material, which can be a metallic material such as gold, copper, or silver.

In some embodiments, the inner wall of the resonant cavity and the outer wall of the resonant bar are provided with a conductive coating layer. The conductive coating layer is selected to be a metal coating layer, such as a gold-plated layer, a copper-plated layer, or a silver-plated layer.

In these embodiments, a metal with high stability and excellent electrical conductivity is selected to provide the resonant cavity and resonant rod. This not only prevents microwaves from leaking out, but also prevents the inner walls of the resonant cavity and the resonant rod from rusting.

In some embodiments, the portion of the mounting part that is located inside the resonant cavity is made of a material with low dielectric loss, such as a PTFE material (polytetrafluoroethylene material), a glass material, or a ceramic material. This allows microwaves to be transmitted to the atomization chamber inside the mounting part, thereby heating the aerosol-generating substrate in the atomization chamber with microwaves and generating an aerosol.

In some embodiments, the mounting portion is removably connected to the housing.

In these embodiments, the atomization chamber for containing the aerosol-generating substrate is provided within the attachment portion. This allows the atomization chamber to be disassembled and cleaned separately by removing the attachment portion, improving the user experience.

In a possible design, the resonating rod is spaced apart from the mounting part.

In this design, a gap is provided between the resonating rod and the mounting part, which makes it possible to prevent the resonating rod from being pressed during the process of assembling the mounting part to the housing. This reduces the requirements for production and assembly precision of the resonating rod and mounting part.

In a possible design, the aerosol generating device further includes a fixing part provided on the mounting part and positioned within the resonant cavity. The fixing part includes a position control chamber, and at least a portion of the resonant rod is positioned within the position control chamber.

In this design, the aerosol generating device further includes a fixing part provided on the mounting part. A position control chamber is provided within the fixing part, and at least a portion of the resonating rod is located within the position control chamber. The fixing part provides a certain degree of vibration damping effect on the resonating rod by fixing the resonating rod via the position control chamber. This prevents the resonating rod from falling out due to vibration.

In some embodiments, the fixing portion and the mounting portion are integrally molded.

In these embodiments, the fixing part and the mounting part are formed as a single unit and have a high bonding strength, improving the stabilization effect of the fixing part on the resonating rod.

In a possible design, the axis of the atomization chamber and the axis of the resonating rod are coaxial.

In this design, the atomization chamber and the resonant rod are arranged coaxially, so it is possible to ensure that the microwaves transmitted to the atomization chamber via the resonant rod are transmitted to the central position of the atomization chamber. This improves the uniformity when the microwaves heat the aerosol-generating substrate in the atomization chamber, and avoids uneven heating of the aerosol-generating substrate caused by the concentration of microwaves in the atomization chamber, further improving the atomization effect of the aerosol-generating substrate.

In a possible design, the microwave module includes a microwave introduction section provided on a side wall of the housing and communicating with the resonant cavity, and a microwave emission source connected to the microwave introduction section, where microwaves output from the microwave emission source are supplied to the resonant cavity via the microwave introduction section, and the microwaves are transmitted in a direction from the first end of the resonant rod to the second end of the resonant rod.

In this design, the microwave module includes a microwave emission source and a microwave introduction section. The microwave emission source is used to generate microwaves. The microwave introduction section, which is provided on the side wall of the housing, is used to convey the microwaves generated by the microwave emission source into the resonant cavity. The microwaves are supplied to the resonant cavity via the microwave introduction section. The microwaves can then be transmitted in a direction from the first end of the resonant rod to the second end of the resonant rod. This allows the microwaves to act directly on the aerosol-generating substrate in the atomization chamber, improving the atomization effect of the aerosol-generating substrate.

In a possible design, the microwave introduction section includes a first introduction member provided on a side wall of the housing and connected to a microwave emission source, and a second introduction member having a first end connected to the first introduction member, located within the resonant cavity, and a second end facing the bottom wall of the resonant cavity.

In this design, the microwave introduction section includes a first introduction member and a second introduction member. The first introduction member is inserted into the side wall of the housing. The first end of the first introduction member is connected to a microwave emission source. Thus, microwaves generated by the microwave emission source enter the microwave introduction section from the first end of the first introduction member. The second end of the first introduction member is connected to the first end of the second introduction member. The second end of the second introduction member faces the bottom wall of the resonant cavity. After being transmitted via the first introduction member and the second introduction member, the microwaves are transmitted from the bottom wall of the resonant cavity to the atomization chamber, where the aerosol-generating substrate in the atomization chamber is atomized by microwave heating.

The first introduction section is provided coaxially with the microwave output end of the microwave emission source. The second introduction member has a horizontal introduction section and a vertical introduction section. The axis of the horizontal introduction section is parallel to the bottom wall of the resonant cavity, and the axis of the vertical introduction section is perpendicular to the bottom wall of the resonant cavity. The horizontal introduction section is connected to the vertical introduction section via a bent section. The horizontal introduction section is also provided coaxially with the first introduction section. By providing the microwave introduction section as described above, all microwaves generated by the microwave emission source can enter the resonant cavity and be transmitted within the resonant cavity by the resonant rod.

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

In this design, the aerosol generating device further includes a recess, the recess is provided on the bottom wall of the resonant cavity, and the recess is provided corresponding to the second end of the second introducing member, and the second end of the second introducing member extends into the recess, so that the microwaves entering the resonant cavity can be transmitted in a direction from the second end to the first end of the resonant rod, thereby reducing the energy loss during the microwave transmission process.

In a possible design, the microwave introduction section includes a third introduction member disposed on a side wall of the housing. A first end of the third introduction member is connected to the microwave emission source, and a second end of the third introduction member faces the resonant rod.

In this design, the microwave introduction section further includes a third introduction member. The third introduction member is arranged coaxially with the microwave output end of the microwave emission source. A first end of the third introduction member is connected to the microwave emission source, and a second end of the third introduction member faces the resonant rod. By arranging the third introduction member coaxially with the microwave output end of the microwave emission source and connecting the third introduction member to the resonant rod, microwaves are transmitted directly to the resonant rod. This allows all microwaves output from the microwave emission source to enter the resonant cavity.

The above and/or additional aspects and advantages of the present application will become apparent and be easily understood from the following description of the embodiments in combination with the drawings.

FIG. 1 shows a schematic structural diagram of an aerosol generating device according to one embodiment of the present application. FIG. 2 is a partial enlarged view of part A of the aerosol generating device shown in FIG. FIG. 3 shows a schematic structural diagram 2 of an aerosol generating device in one embodiment of the present application. FIG. 4 shows a schematic structural diagram 1 of a mounting portion of an aerosol generating device according to one embodiment of the present application. FIG. 5 shows a schematic structural diagram 2 of the mounting portion of the aerosol generating device in one embodiment of the present application. FIG. 6 shows a schematic structural diagram 1 of a mounting portion of an aerosol generating device in another embodiment of the present application. FIG. 7 shows a schematic structural diagram 2 of a mounting portion of an aerosol generating device in another embodiment of the present application. FIG. 8 shows a schematic structural diagram 1 of a mounting portion of an aerosol generating device in another embodiment of the present invention. FIG. 9 shows a schematic structural diagram 2 of the mounting portion of the aerosol generating device in another embodiment of the present application. FIG. 10 shows a schematic structural diagram 3 of an aerosol generating device in one embodiment of the present application.

In order to make the above-mentioned 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.

In the following description, many 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. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

Hereinafter, an aerosol generating device according to some embodiments of the present application will be described with reference to FIGS.

As shown in Figures 1 and 3, one embodiment of the present application provides an aerosol generating device 100 including a housing 110, a microwave module 130, a mounting portion 140, and a pressure sensor 150.

The housing 110 includes a resonant cavity 120.

The microwave module 130 is provided in the housing 110. The microwave module 130 is used to supply microwaves into the resonant cavity 120.

The mounting portion 140 is provided on the housing 110. At least a portion of the mounting portion 140 is located within the resonant cavity 120. The mounting portion 140 includes an atomization chamber 143. The atomization chamber 143 is used to accommodate an aerosol-generating substrate.

The pressure sensor 150 is mounted on the housing 110 and is located outside the resonant cavity 120. The collection end of the pressure sensor 150 is in communication with the nebulization chamber 143 and is used to collect the air pressure value within the nebulization chamber 143.

The aerosol generating device 100 provided in this embodiment includes a housing 110, a microwave module 130, a mounting portion 140, and a pressure sensor 150. A resonant cavity 120 is provided in the housing 110. The microwave output end of the microwave module 130 is connected to the resonant cavity 120, and the microwaves generated by the microwave module 130 are supplied into the resonant cavity 120. The mounting portion 140 is provided in the housing 110. An atomization chamber 143 is provided inside the mounting portion 140. The atomization chamber 143 is used to accommodate the aerosol-generating substrate. The microwave module 130 supplies microwaves into the resonant cavity 120 and transmits them to the mounting portion 140 via the resonant cavity 120, thereby microwave-heating the aerosol-generating substrate in the atomization chamber 143.

The mounting portion 140 isolates the resonant cavity 120 from the atomization chamber 143, thereby making it possible to prevent liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber 143 from entering the resonant cavity 120. This prevents the aerosol generating device 100 from breaking down due to debris entering the resonant cavity 120.

The aerosol generating device 100 further includes a pressure sensor 150. The collection end of the pressure sensor 150 is connected to the atomization chamber 143. The pressure sensor 150 can collect the air pressure value in the atomization chamber 143. By providing the pressure sensor 150 in the housing 110 and positioning the pressure sensor 150 outside the resonant cavity 120, the pressure sensor 150 is not affected by the microwaves transmitted in the resonant cavity 120. By collecting the change in the air pressure value in the atomization chamber 143 with the pressure sensor 150, it is possible to detect whether the aerosol generating device 100 is in an inhalation state based on the change in the air pressure value in the atomization chamber 143. Then, the operation of the microwave module 130 is controlled based on the inhalation state of the aerosol generating device 100.

In some embodiments, when it is detected that the aerosol generating device 100 is in an inhalation state, the microwave module 130 is operated to control the aerosol-generating substrate in the atomization chamber 143 to be atomized by microwave heating. When the aerosol generating device 100 is not in an inhalation state, the operation of the microwave module 130 is stopped to control the aerosol-generating substrate in the atomization chamber 143 not to continue to be atomized by heating.

In some other embodiments, when the aerosol generating device 100 receives a preheat control command in an activated state, the aerosol generating device 100 controls the microwave module 130 to operate at the first power until the indoor temperature value of the atomization chamber 143 falls within the range of the set temperature value. This allows the indoor temperature value to be maintained within the range of the set temperature value, thereby enabling the preheating effect on the aerosol-generating substrate in the atomization chamber 143 to be exerted. In addition, the aerosol generating device 100 detects whether or not the aerosol generating device 100 is in an inhalation state, and adjusts the first power based on the inhalation state of the aerosol generating device 100. Specifically, when it is detected that the aerosol generating device 100 is in an inhalation state, the microwave module 130 is controlled to operate at the second power to rapidly increase the temperature in the atomization chamber 143. As a result, the aerosol-generating substrate is rapidly heated and atomized, generating an aerosol. Note that the second power is greater than the first power. On the other hand, when it is detected that the aerosol generating device 100 is not in an inhalation state, the microwave module 130 is controlled to maintain operation at the first power to continue preheating the aerosol-generating substrate.

In the present application, the pressure sensor 150 collects the air pressure value in the atomization chamber 143 to detect whether the aerosol generating device 100 is in an inhalation state, and controls the operation of the microwave module 130 based on the inhalation state. As a result, after the user stops inhaling, the microwave module 130 can be immediately controlled to stop operating, thereby avoiding waste of electrical energy and aerosol-generating substrate. In addition, since a preheating effect is realized on the aerosol-generating substrate when the aerosol generating device 100 is in a non-inhalation state, it is possible to rapidly heat the aerosol-generating substrate to the atomization temperature in the inhalation state. As a result, energy consumption is reduced, the atomization efficiency of the aerosol-generating substrate is improved, and further, the degree of atomization of the aerosol-generating substrate is also improved, improving the user experience.

In addition, the aerosol generating device 100 in the above technical solution provided by the present application may further have the following additional technical features:

As shown in Figures 1 and 3, in any of the above embodiments, the mounting portion 140 includes a base body 141, a guide member 142, and an atomization chamber 143.

The atomization chamber 143 is provided within the base body 141.

One end of the guide member 142 is connected to the base body 141 and communicates with the atomization chamber 143. The other end of the guide member 142 is connected to the collection end of the pressure sensor 150.

In this embodiment, the mounting portion 140 includes a base body 141 and a guide member 142. The base body 141 is provided in the housing 110. The base body 141 and the atomization chamber 143 surround and form the resonant cavity 120. The guide member 142 is inserted into the housing 110. One end of the guide member 142 is connected to the base body 141. The guide member 142 is connected to the atomization chamber 143. The other end of the guide member 142 extends to the outside of the housing 110 and is connected to the pressure sensor 150. The guide member 142 connects the atomization chamber 143 to the pressure sensor 150 outside the housing 110, allowing the pressure sensor 150 to directly collect the indoor pressure value of the atomization chamber 143.

As shown in FIG. 1, in any of the above embodiments, the guide member 142 includes a first tube 1422 and a second tube 1424.

The first pipe material 1422 is integrally molded with the base body 141.

The second tube 1424 is provided in the housing 110. A first end of the second tube 1424 passes through the housing 110 and is connected to the first tube 1422. A second end of the second tube 1424 is connected to the pressure sensor 150. The collection end of the pressure sensor 150 is located within the second tube 1424.

In this embodiment, the guide member 142 includes a first pipe 1422 and a second pipe 1424. The first pipe 1422 is connected to the base body 141. The second pipe 1424 is provided on the side wall of the housing 110. The second pipe 1424 penetrates the housing 110 and is connected to the first pipe 1422. One end of the second pipe 1424 located outside the housing 110 is connected to the pressure sensor 150. By providing the guide member 142 so that the first pipe 1422 and the second pipe 1424 are connected, the assembly process of the aerosol generating device 100 can be simplified. In addition, it is convenient to disassemble and clean the mounting part 140 separately.

The first pipe 1422 is molded integrally with the base body 141, further reducing the number of assembly steps. The second pipe 1424 is attached to the housing 110 by a fixing member. The fixing member can be a fastening member such as a screw or a rivet.

The assembly steps of the guide member 142 and the mounting part 140 include the following: That is, the base body 141 with the first pipe material 1422 integrally molded therewith is inserted into the inside of the housing 110. Next, the second pipe material 1424 is inserted into the side wall of the housing 110, and the second pipe material 1424 and the first pipe material 1422 are inserted and connected. This allows the first pipe material 1422 and the second pipe material 1424 to communicate with the atomization chamber 143 in the base body 141, and ensures the sealing performance of the connection between the first pipe material 1422 and the second pipe material 1424. Then, the second pipe material 1424 is fixed to the side wall of the housing 110 by a fastening member, thereby completing the assembly process of the guide member 142 and the mounting part 140. By providing a first pipe 1422 and a second pipe 1424 on the inside and outside of the housing 110, respectively, and connecting the first pipe 1422 and the second pipe 1424 to each other, it is possible to simplify the assembly steps of the guide member 142 while ensuring the sealing performance of the guide member 142.

In any of the above embodiments, the mounting portion 140 further includes an opening. The opening is provided at one end of the base body 141. The opening is in communication with the atomization chamber 143. The opening is used to allow the aerosol-generating substrate to enter the atomization chamber 143.

In this embodiment, the mounting portion 140 further includes an opening provided at one end of the base body 141. The opening faces the outside of the housing 110. The opening communicates with the atomization chamber 143 and is used to load the aerosol-generating substrate into the atomization chamber 143 through the opening.

As can be seen, the aerosol-generating substrate is provided with an inhalation portion. The inhalation portion protrudes from the atomization chamber 143 through an opening, and a user can inhale the aerosol-generating substrate through the inhalation portion.

As shown in FIG. 3, in any of the above embodiments, the aerosol generating device 100 further includes a first through hole 160.

The first through hole 160 is provided in the housing 110, and the resonant cavity 120 is connected to the outside through the first through hole 160.

The mounting portion 140 further includes a second through hole 144 provided in the base body 141. The atomization chamber 143 is in communication with the resonant cavity 120 through the second through hole 144.

In this embodiment, the aerosol generating device 100 includes a first through hole 160 and a second through hole 144. The first through hole 160 is provided in the housing 110 and connects the resonant cavity 120 to the outside of the housing 110. The second through hole 144 is provided in the base body 141 and connects the resonant cavity 120 to the atomization chamber 143. When a user inhales through the inhalation part of the aerosol generating substrate, gas outside the housing 110 passes through the first through hole 160, the resonant cavity 120, the second through hole 144, the atomization chamber 143, and the aerosol generating substrate in this order. Then, the precipitates produced by the aerosol generating substrate receiving heat are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. This creates a gas flow path, which allows air from outside the housing 110 to be constantly replenished into the atomization chamber 143 during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. It also prevents the airflow from being too small, which can cause the aerosol-generating substrate to encounter excessive resistance to inhalation, improving the user experience.

As shown in Figures 4 and 5, in any of the above embodiments, the mounting portion 140 further includes at least two protrusions 145.

At least two protrusions 145 are provided on the inner wall of the atomization chamber 143. At least two protrusions 145 protrude from the inner wall of the atomization chamber 143. A gap is provided between two adjacent protrusions 145 of the at least two protrusions 145. The at least two protrusions 145 are used to fix the aerosol-generating substrate.

In this embodiment, the attachment portion 140 further includes at least two protrusions 145 provided on the inner wall of the atomization chamber 143. The at least two protrusions 145 are capable of fixing the aerosol-generating substrate. When the aerosol-generating substrate is inserted into the atomization chamber 143 through the opening, the at least two protrusions 145 abut against the outer wall of the aerosol-generating substrate, thereby fixing the aerosol-generating substrate. This prevents the aerosol-generating substrate from slipping out of the atomization chamber 143.

Of the at least two protrusions 145, two adjacent protrusions 145 are spaced apart. An airflow path is formed by the gap between the two adjacent protrusions 145 and the gap between the aerosol-generating substrate and the side wall of the atomization chamber 143.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing 110 passes through the gap between two adjacent protrusions 145, the gap between the aerosol-generating substrate and the side wall of the atomization chamber 143, and the aerosol-generating substrate in that order. Then, precipitates produced when the aerosol-generating substrate receives heat are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. This allows air outside the housing 110 to be constantly replenished into the atomization chamber 143 during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, improving the user experience.

In any of the above embodiments, at least two protrusions 145 are located on the inner wall of the atomization chamber 143 adjacent to the opening. Also, the at least two protrusions 145 are uniformly distributed around the circumference of the atomization chamber 143.

In this embodiment, at least two protrusions 145 are uniformly provided along the circumferential direction of the atomization chamber 143. The uniformly distributed protrusions 145 can provide a good fixing effect on the aerosol-generating substrate, thereby preventing the aerosol-generating substrate from falling out of the atomization chamber 143 during the inhalation process. In addition, the aerosol-generating substrate generates some dust during the inhalation process, but since at least two protrusions 145 are provided at one end close to the opening, the user can easily clean the dust adhering to the protrusions 145. This prevents the gaps between the protrusions 145 from being clogged with dust, improving the stability of the operation of the aerosol generating device 100.

As shown in Figures 6 and 7, in any of the above embodiments, the mounting portion 140 further includes a recessed groove 146.

The groove 146 is provided on the inner wall of the atomization chamber 143. The groove 146 also extends along the center line of the atomization chamber 143.

In this embodiment, the attachment portion 140 further includes a groove 146 provided on the inner wall of the atomization chamber 143. After the aerosol-generating substrate is inserted into the atomization chamber 143 through the opening, the aerosol-generating substrate comes into contact with the inner wall of the atomization chamber 143, so that the frictional force between the inner wall of the atomization chamber 143 and the aerosol-generating substrate can prevent the aerosol-generating substrate from falling out of the atomization chamber 143.

When a user inhales through the inhalation part of the aerosol-generating substrate, gas outside the housing 110 passes through the groove 146 and the aerosol-generating substrate in that order. Then, when the aerosol-generating substrate is heated, precipitates mix with the gas to form an aerosol, and the aerosol formed is discharged from the inhalation part. This allows air outside the housing 110 to be constantly replenished into the atomization chamber 143 during the inhalation process of the aerosol-generating substrate, allowing the aerosol-generating substrate to be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to the airflow being too small, improving the user experience.

In any of the above embodiments, the number of grooves 146 is at least two. Furthermore, the at least two grooves 146 are uniformly distributed along the circumferential direction of the atomization chamber 143.

In this embodiment, the multiple grooves 146 are uniformly distributed on the inner circumferential side wall of the atomization chamber 143, allowing the outside air to come into uniform contact with the aerosol-generating substrate. This allows the precipitate of the aerosol-generating substrate to mix sufficiently with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

As can be seen, the suction resistance of the aerosol generating device 100 can be adjusted by rationally setting the number and inner diameter of the grooves 146.

As shown in Figures 8 and 9, in any of the above embodiments, the mounting portion 140 further includes a spacer 147.

The spacer 147 is provided in the nebulization chamber 143. The spacer 147 divides the nebulization chamber 143 into a first chamber 1432 and a second chamber 1434. The first chamber 1432 is in communication with the second chamber 1434. The first chamber 1432 is used to contain the aerosol-generating substrate.

In this embodiment, the attachment portion 140 further includes a spacer 147 disposed within the nebulization chamber 143. The spacer 147 divides the nebulization chamber 143 into a first chamber 1432 and a second chamber 1434 that communicate with each other. The first chamber 1432 is used to contain the aerosol-generating substrate, and the second chamber 1434 communicates with the air outside the nebulization chamber 143.

When a user inhales through the inhalation part of the aerosol-generating substrate, air outside the housing 110 passes through the second chamber 1434, the first chamber 1432, and the aerosol-generating substrate in that order. That is, the air passes through the second chamber 1434 and enters the first chamber 1432, and comes into contact with the aerosol-generating substrate. Then, the precipitates produced by the heat of the aerosol-generating substrate are mixed with the gas to form an aerosol, and the formed aerosol is discharged from the inhalation part. As a result, during the inhalation process of the aerosol-generating substrate, air outside the housing 110 can be constantly replenished into the atomization chamber 143, and the aerosol-generating substrate can be sufficiently atomized. In addition, it is possible to avoid a situation in which the inhalation resistance of the aerosol-generating substrate becomes excessively large due to an airflow that is too small, thereby improving the user experience.

In any of the above embodiments, the first chamber 1432 and the second chamber 1434 are distributed in a concentric ring shape. Also, the second chamber 1434 is located outside the first chamber 1432.

In this embodiment, the second chamber 1434 is provided in an annular shape outside the first chamber 1432, so that the air passes through the second chamber 1434 and then uniformly enters the first chamber 1432 from the outside. This allows the outside air to come into uniform contact with the aerosol-generating substrate, so that the precipitate of the aerosol-generating substrate can be sufficiently mixed with the air to form an aerosol. This improves the atomization effect of the aerosol-generating substrate.

In any of the above embodiments, the mounting portion 140 further includes a third through hole.

The third through hole is provided in the spacer 147. The third through hole is located at one end of the spacer 147 that is connected to the bottom wall of the atomization chamber 143.

In this embodiment, the mounting portion 140 further includes a third through hole. The third through hole is provided in the spacer 147, and connects the first chamber 1432 and the second chamber 1434 through the third through hole.

In any of the above embodiments, the mounting portion 140 further includes a support portion.

The support portion is provided on the bottom wall of the atomization chamber 143. The support portion protrudes from the bottom wall of the atomization chamber 143.

In this embodiment, the attachment portion 140 further includes a support portion provided on the bottom wall of the atomization chamber 143. The support portion supports the aerosol-generating substrate, thereby creating a gap between the aerosol-generating substrate and the bottom wall of the atomization chamber 143. This allows air entering the atomization chamber 143 from the outside to come into contact with the bottom end of the aerosol-generating substrate, further improving the mixing effect between the air and the precipitate formed when the aerosol-generating substrate is heated. This allows the precipitate of the aerosol-generating substrate to be sufficiently mixed with the air to form an aerosol, improving the atomization effect of the aerosol-generating substrate.

In any of the above embodiments, the housing 110 includes a main body 112 and an end cover 114.

The end cover 114 is removably connected to the main body 112. The mounting portion 140 is inserted into the end cover 114. The end cover 114 and the main body 112 surround the resonant cavity 120.

In this embodiment, the housing 110 includes a main body 112 and an end cover 114. The mounting portion 140 is provided on the end cover 114, and the end cover 114 is removably connected to the main body 112. This makes it convenient for a user to remove the end cover 114 and disassemble and clean the mounting portion 140 separately, thereby avoiding breakdowns caused by water getting in when cleaning the entire aerosol generating device 100.

In any of the above embodiments, the aerosol generating device 100 further includes a resonating rod 170.

The resonant rod 170 is disposed within the resonant cavity 120. A first end of the resonant rod 170 is connected to the bottom wall of the cavity wall of the resonant cavity 120, and a second end of the resonant rod 170 is disposed to correspond to the mounting portion 140.

In this embodiment, the resonant rod 170 is used for resonant transmission of microwaves. A first end of the resonant rod 170 is connected to the bottom wall of the resonant cavity 120, and a second end of the resonant rod 170 is provided to correspond to the mounting part 140. The microwaves supplied by the microwave module 130 into the resonant cavity 120 are transmitted from the first end to the second end of the resonant rod 170, thereby microwave-heating the aerosol-generating substrate in the atomization chamber 143 of the mounting part 140.

The atomization chamber 143 and the resonant cavity 120 are isolated by the mounting portion 140, so that liquid or solid debris generated after atomization of the aerosol-generating substrate in the atomization chamber 143 can be prevented from entering the resonant cavity 120. This prevents the microwave module 130 from failing due to debris entering the resonant cavity 120.

In some embodiments, the inner walls of the resonant cavity 120 and the resonant bar 170 are made of a conductive material, which can be , for example, a metallic material such as gold, copper, or silver.

In some embodiments, the inner wall of the resonant cavity 120 and the outer wall of the resonant rod 170 are provided with a conductive coating layer, which may be selected from metal coating layers such as, for example, a gold-plated layer, a copper-plated layer, or a silver-plated layer.

In these embodiments, a metal with high stability and excellent electrical conductivity is selected to provide the resonant cavity 120 and the resonant rod 170. This not only prevents microwaves from leaking out, but also prevents the inner wall of the resonant cavity 120 and the resonant rod 170 from rusting.

In some embodiments, the portion of the mounting portion 140 located inside the resonant cavity 120 is made of a material with low dielectric loss, such as a PTFE material (polytetrafluoroethylene material), a glass material, or a ceramic material. This allows microwaves to be transmitted to the atomization chamber 143 inside the mounting portion 140, thereby heating the aerosol-generating substrate in the atomization chamber 143 with microwaves and generating an aerosol.

In some embodiments, the mounting portion 140 is removably connected to the housing 110.

In these embodiments, the atomization chamber 143 for containing the aerosol-generating substrate is provided within the attachment portion 140. Therefore, the atomization chamber 143 can be disassembled and cleaned separately by removing the attachment portion 140, improving the user experience.

As shown in Figures 1 and 2, in any of the above embodiments, the resonating rod 170 is spaced apart from the mounting portion 140.

In this embodiment, by providing a gap between the resonating rod 170 and the mounting portion 140, it is possible to prevent the resonating rod 170 from being pressed during the process of assembling the mounting portion 140 to the housing 110. This reduces the requirements for production and assembly precision of the resonating rod 170 and the mounting portion 140.

As shown in FIG. 1, in any of the above embodiments, the aerosol generating device 100 further includes a fixing part 180 that is provided on the mounting part 140 and is located within the resonant cavity 120. The fixing part 180 includes a position restriction chamber, and at least a portion of the resonant rod 170 is located within the position restriction chamber.

In this embodiment, the aerosol generating device 100 further includes a fixing part 180 provided on the mounting part 140. A position restriction chamber is provided within the fixing part 180, and at least a portion of the resonating rod 170 is located within the position restriction chamber. The fixing part 180 provides a certain degree of vibration isolation for the resonating rod 170 by fixing the resonating rod 170 via the position restriction chamber. This prevents the resonating rod 170 from falling off due to vibration.

In some embodiments, the fixing portion 180 and the mounting portion 140 are integrally molded.

In these embodiments, the fixing portion 180 and the mounting portion 140 are formed as a single unit and have a high bonding strength, improving the stabilization effect of the fixing portion 180 on the resonating rod 170.

As shown in Figures 1 and 2, in any of the above embodiments, the axis of the atomization chamber 143 and the axis of the resonant rod 170 are coaxial.

In this embodiment, the atomization chamber 143 and the resonant rod 170 are arranged coaxially, so it is possible to ensure that the microwaves transmitted to the atomization chamber 143 via the resonant rod 170 are transmitted to the central position of the atomization chamber 143. This improves the uniformity when the microwaves heat the aerosol-generating substrate in the atomization chamber 143, and prevents uneven heating of the aerosol-generating substrate caused by the concentration of microwaves in the atomization chamber 143, thereby further improving the atomization effect of the aerosol-generating substrate.

As shown in Figures 1 and 2, in any of the above embodiments, the microwave module 130 includes a microwave introduction section 132.

The microwave introduction section 132 is provided on the side wall of the housing 110. The microwave introduction section 132 is connected to the resonant cavity 120. In addition, a microwave emission source 134 is connected to the microwave introduction section 132. The microwaves output from the microwave emission source 134 are supplied to the resonant cavity 120 via the microwave introduction section 132. As a result, the microwaves are transmitted in a direction from the first end of the resonant rod 170 to the second end of the resonant rod 170.

In this embodiment, the microwave module 130 includes a microwave emission source 134 and a microwave introduction section 132. The microwave emission source 134 is used to generate microwaves. The microwave introduction section 132 provided on the side wall of the housing 110 is used to transport the microwaves generated by the microwave emission source 134 into the resonant cavity 120. The microwaves are supplied to the resonant cavity 120 via the microwave introduction section 132. The microwaves can then be transmitted in a direction from the first end of the resonant rod 170 to the second end of the resonant rod 170. This allows the microwaves to act directly on the aerosol-generating substrate in the atomization chamber 143, improving the atomization effect of the aerosol-generating substrate.

As shown in FIG. 1, in any of the above embodiments, the microwave introduction section 132 includes a first introduction member 1322 and a second introduction member 1324.

The first introduction member 1322 is provided on the side wall of the housing 110. The first introduction member 1322 is also connected to the microwave emission source 134.

A first end of the second introduction member 1324 is connected to the first introduction member 1322. The second introduction member 1324 is located within the resonant cavity 120. Furthermore, the second end of the second introduction member 1324 faces the bottom wall of the resonant cavity 120.

In this embodiment, the microwave introduction section 132 includes a first introduction member 1322 and a second introduction member 1324. The first introduction member 1322 is inserted into the side wall of the housing 110. The first end of the first introduction member 1322 is connected to the microwave emission source 134. As a result, the microwaves generated by the microwave emission source 134 enter the microwave introduction section 132 from the first end of the first introduction member 1322. The second end of the first introduction member 1322 is connected to the first end of the second introduction member 1324. The second end of the second introduction member 1324 faces the bottom wall of the resonant cavity 120. After being transmitted via the first introduction member 1322 and the second introduction member 1324, the microwaves are transmitted from the bottom wall of the resonant cavity 120 to the atomization chamber 143, and the aerosol-generating substrate in the atomization chamber 143 is atomized by microwave heating.

The first introduction section is provided coaxially with the microwave output end of the microwave emission source 134. The second introduction member has a horizontal introduction section and a vertical introduction section. The axis of the horizontal introduction section is parallel to the bottom wall of the resonant cavity 120, and the axis of the vertical introduction section is perpendicular to the bottom wall of the resonant cavity 120. The horizontal introduction section is connected to the vertical introduction section via a bent section. The horizontal introduction section is also provided coaxially with the first introduction section. By providing the microwave introduction section 132 as described above, all of the microwaves generated by the microwave emission source 134 can enter the resonant cavity 120 and be transmitted within the resonant cavity 120 by the resonant rod 170.

As shown in FIG. 2, in any of the above embodiments, the aerosol generating device 100 further includes a recess 190.

A recess 190 is provided in the bottom wall of the resonant cavity 120, and the second end of the second introduction member is located within the recess 190.

In this embodiment, the aerosol generating device 100 further includes a recess 190. The recess 190 is provided on the bottom wall of the resonant cavity 120. The recess 190 is provided corresponding to the second end of the second introducing member, and the second end of the second introducing member extends into the recess 190. This allows the microwaves entering the resonant cavity 120 to be transmitted in a direction from the second end to the first end of the resonant rod 170, thereby reducing energy loss during the microwave transmission process.

As shown in FIG. 10, in any of the above embodiments, the microwave introduction section 132 includes a third introduction member 1326.

The third introduction member 1326 is provided on the side wall of the housing 110. A first end of the third introduction member 1326 is connected to the microwave emission source 134, and a second end of the third introduction member 1326 faces the resonant rod 170.

In this embodiment, the microwave introduction section 132 further includes a third introduction member 1326. The third introduction member 1326 is provided coaxially with the microwave output end of the microwave emission source 134. A first end of the third introduction member 1326 is connected to the microwave emission source 134, and a second end of the third introduction member 1326 faces the resonant rod 170. By providing the third introduction member 1326 coaxially with the microwave output end of the microwave emission source 134 and connecting the third introduction member 1326 to the resonant rod 170, the microwaves are directly transmitted to the resonant rod 170. As a result, all of the microwaves output from the microwave emission source 134 are allowed to enter the resonant cavity 120.

For clarity, in the claims, specification and drawings of this application, the term "multiple" means two or more than two. In addition, unless otherwise expressly limited, the directions or positional relationships indicated by terms such as "upper", "lower", etc. are based on the illustrations, and are merely intended to make this application easier to describe and to simplify the description process, and are not intended to expressly or imply that the subject device or component must have the specific direction described and be constructed and operated in the specific direction. Therefore, these descriptions should not be construed as restricting this application. In addition, terms such as "connect", "attach", and "fix" should all be interpreted broadly. For example, "connect" may mean a fixed connection between multiple objects, or a removable or integral connection between multiple objects. In addition, it may be a direct connection between multiple objects, or an indirect connection between multiple objects via an intermediate medium. Those skilled in the art can interpret the specific meaning of the above terms in this application based on the specific circumstances of the above data.

In the claims, specification and drawings of this application, the description of "one embodiment," "several embodiments," "specific embodiment," 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 the claims, specification and drawings of this application, 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.

The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art may have various modifications and variations of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

REFERENCE SIGNS LIST 100 Aerosol generating device 110 Housing 112 Main body 114 End cover 120 Resonant cavity 130 Microwave module 132 Microwave introduction section 1322 First introduction member 1324 Second introduction member 1326 Third introduction member 134 Microwave emission source 140 Mounting section 141 Base body 142 Guide member 1422 First pipe member 1424 Second pipe member 143 Atomization chamber 1432 First chamber 1434 Second chamber 144 Second through hole 145 Protrusion 146 Groove 147 Spacer 150 Pressure sensor 160 First through hole 170 Resonant rod 180 Fixing section 190 Recessed section

Claims (22)

a housing containing a resonant cavity;
a microwave module mounted in the housing and configured to supply microwaves into the resonant cavity;
a mounting portion disposed on the housing and positioned at least partially within the resonant cavity, the mounting portion including an atomization chamber, the atomization chamber adapted to receive an aerosol-generating substrate;
An aerosol generating device comprising: a pressure sensor provided in the housing and positioned outside the resonant cavity, the pressure sensor having a collection end communicating with the atomization chamber, the pressure sensor being used to collect air pressure values within the atomization chamber. The mounting portion is
A base body in which the atomization chamber is provided;
2. The aerosol generating device of claim 1, further comprising a guide member having one end connected to the base body and another end connected to the collection end of the pressure sensor. The guide member is
A first pipe member integrally formed with the base body;
3. The aerosol generating device of claim 2, further comprising a second tubing provided in the housing, the first end of the second tubing extending through the housing and connected to the first tubing, the second end of the second tubing being connected to the pressure sensor, the collection end of the pressure sensor being located within the second tubing. The mounting portion further includes:
3. The aerosol generating device according to claim 2, further comprising an opening provided at one end of the base body, the opening communicating with the atomization chamber, the opening being used to allow the aerosol generating substrate to enter the atomization chamber. Furthermore,
a first through hole provided in the housing, the resonant cavity communicating with the outside through the first through hole;
The mounting portion further includes:
5. The aerosol generating device according to claim 4, further comprising a second through hole provided in the base body, the atomization chamber communicating with the resonant cavity through the second through hole. The mounting portion further includes:
5. The aerosol generating device of claim 4, further comprising at least two protrusions provided on an inner wall of the mist chamber, the at least two protrusions protruding from the inner wall of the mist chamber, a gap being provided between two adjacent protrusions of the at least two protrusions, and the at least two protrusions being used to fix the aerosol generating substrate. The aerosol generating device according to claim 6, wherein the at least two protrusions are located on the inner wall of the atomization chamber adjacent to the opening, and the at least two protrusions are uniformly distributed along the circumferential direction of the atomization chamber. The mounting portion further includes:
5. The aerosol generating device according to claim 4, further comprising a groove, the groove being provided in an inner wall of the atomizing chamber, the groove extending along a center line of the atomizing chamber. The aerosol generating device according to claim 8, wherein the number of the grooves is at least two, and the at least two grooves are uniformly distributed along the circumferential direction of the atomization chamber. The mounting portion further includes:
5. The aerosol generating device of claim 4, further comprising a spacer disposed in the atomization chamber, the spacer dividing the atomization chamber into a first chamber and a second chamber, the first chamber communicating with the second chamber, and the first chamber being used to accommodate the aerosol generating substrate. The aerosol generating device according to claim 10, wherein the first chamber and the second chamber are distributed in a coaxial ring shape, and the second chamber is located outside the first chamber. The mounting portion further includes:
The aerosol generating device according to claim 10 , further comprising a third through hole provided in the spacer, the third through hole being located at one end of the spacer that is connected to the bottom wall of the atomization chamber. The mounting portion further includes:
13. The aerosol generating device according to claim 2, further comprising a support portion provided on a bottom wall of the atomization chamber, the support portion protruding from the bottom wall of the atomization chamber. The housing includes:
The main body,
An aerosol generating device as described in any one of claims 1 to 12, comprising an end cover that is removably connected to the main body, the mounting portion being inserted into the end cover, and the end cover and the main body surrounding the resonant cavity. Furthermore,
An aerosol generating device as described in any one of claims 1 to 12, comprising a resonant rod provided within the resonant cavity, a first end of the resonant rod being connected to a bottom wall of the cavity wall of the resonant cavity, and a second end of the resonant rod being provided facing the mounting portion. The aerosol generating device according to claim 15, wherein the resonating rod is spaced apart from the mounting portion. Furthermore,
16. The aerosol generating device according to claim 15, further comprising a fixing portion provided on the mounting portion and positioned within the resonant cavity, the fixing portion including a position control chamber, and at least a portion of the resonant rod being positioned within the position control chamber. The aerosol generating device according to claim 15, wherein the axis of the atomization chamber and the axis of the resonating rod are coaxial. The microwave module comprises:
a microwave introduction portion provided on a side wall of the housing and communicating with the resonant cavity;
The aerosol generating device of claim 15, further comprising: a microwave emission source connected to the microwave introduction section, wherein the microwaves output from the microwave emission source are supplied to the resonant cavity via the microwave introduction section, and the microwaves are transmitted in a direction from a first end of the resonant rod to a second end of the resonant rod. The microwave introduction section is
a first introduction member provided on a side wall of the housing and connected to the microwave emission source;
20. The aerosol generating device of claim 19, further comprising: a second introduction member having a first end connected to the first introduction member, the second introduction member being positioned within the resonant cavity, and a second end facing a bottom wall of the resonant cavity. Furthermore,
21. The aerosol generating device of claim 20, further comprising a recess in a bottom wall of the resonant cavity, the second end of the second introduction member being located within the recess. The microwave introduction section is
20. The aerosol generating device of claim 19, further comprising a third introduction member provided on a side wall of the housing, a first end of the third introduction member being connected to the microwave emission source, and a second end of the third introduction member facing the resonant rod.

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