79 results about "Airway structure" patented technology

The invention discloses a spiral portable breathing machine which comprises a machine body, an air supply mechanism used for forming a turbine drive type air supply structure, a ventilation mechanism used for forming a spiral air channel structure and a mask mechanism used for forming a buffer type mask structure. The air supply mechanism is arranged in the machine body, the ventilation mechanism is arranged on one side of the air supply mechanism, and the mask mechanism is assembled on the upper portion of the machine body corresponding to the ventilation mechanism. A spiral air channel structure is adopted, the venturi principle is utilized, air can be accelerated to improve the air filtering efficiency and the air supply effect of the breathing machine, the mask mechanism is arranged and provided with a buffering assembly, high-speed air exhausted by the ventilation mechanism can be buffered to achieve the slow air supply effect, and the breathing comfort of a user is improved.

The application discloses an air passage structure and an electronic atomizer. The air passage structure comprises a plate body, a communication hole, a communication channel, a first air outlet and a second air outlet. The plate body comprises a first plate surface and a second plate surface facing away from each other. The communication hole, the first air outlet and the second air outlet are respectively arranged in the plate body and penetrate through the first plate surface and the second plate surface. The communication hole is used for communicating with the outside atmosphere. The communication channel is formed in the first plate surface and / or the second plate surface. The first air outlet is used for communicating with a suction nozzle of the atomizer. The communication hole, the communication channel and the first air outlet are sequentially connected to form a first air passage capable of connecting and awakening a sensing component of the atomizer. The second air outlet is used for communicating with a mist suction channel of the atomizer and the outside atmosphere. The second air outlet is connected to the first air outlet. The air passage structure can improve the sensitivity of awakening the sensing component to start.

The invention relates to an air passage structure of an atomizing device, which comprises a shell and an atomizing core, and is characterized in that the shell is provided with at least one substance storage passage and at least one air passage; and the at least one substance storage channel and the at least one gas channel are mutually independent. According to the atomization device, the substance storage channel and the air channel are independent of each other, so that the atomized substance flowing out of the atomization device is separated from the substance storage channel, a user can suck the atomized substance after atomization, the atomized substance to be atomized cannot be sucked in, and the atomization device is safe and sanitary. In addition, when atomized substances are injected into the substance storage channel, the channel opening of the substance storage channel may be polluted. In addition, due to the fact that the substance storage channel and the air channel are independent of each other, a user can avoid a channel opening of the polluted substance storage channel and cannot make contact with the channel opening of the polluted substance storage channel, and safety and sanitation of the atomization device are further guaranteed.

This utility model relates to the field of laser welding technology, specifically disclosing a laser welding gun and laser welding equipment with a gas channel structure. The welding gun includes a working part and a gun barrel. The working part has a gas supply channel with an inlet at its input end, which is connected to a gas source. The working part has an output port connected to the gas source, and the output end of the gas supply channel is connected to the output port via an outlet channel, which connects the gas supply channel and the output port. The gun barrel is detachably connected to the working part, and the output port is connected to the input end of the gun barrel. This welding method solves the problem of potential impact damage to externally located gas channels, improves the structural stability, durability, and operational safety of the equipment, and ensures welding quality and energy transfer efficiency.

The utility model relates to an aerosol generating device which comprises a shell, a suction nozzle and a filter tip, wherein the suction nozzle and the filter tip are used for a user to suck; a heating cavity is formed in the inner side of the shell, and an air channel structure is arranged on the shell. The air passage structure is communicated with the heating cavity and is configured to be detachably connected and communicated with one of the suction nozzle and the filter tip; when the air passage structure is connected with the suction nozzle, aerosol generated by the heating cavity is output through the suction nozzle; when the air channel structure is connected with the filter tip, aerosol generated by the heating cavity is filtered by the filter tip and output. According to the aerosol generating device, the air channel structure, communicated with the heating cavity, on the shell is configured to be detachably connected and communicated with one of the suction nozzle and the filter tip, and then the suction nozzle or the filter tip can be selected to be connected with the air channel structure according to user requirements. The aerosol generating device has the advantages of being convenient to use, wide in application range and high in user experience.

The invention relates to a device and a method for preparing polycrystalline silicon carbide, polycrystalline silicon carbide and application thereof. The apparatus comprises: a crucible; the graphite substrate is arranged on the crucible and is positioned at the upper part of the crucible; the air channel structure is arranged in the crucible and is used for introducing air into the crucible; the baffle is arranged in the crucible, a gap is formed between the baffle and the graphite substrate, a projection covers the graphite substrate, and a gap is formed between the baffle and the bottom wall of the crucible; and the heater is arranged in the crucible and is lower than the baffle. The device can be used for manufacturing polycrystalline silicon carbide with low resistivity.

The invention provides a respiratory tract normalization model construction method and system based on a medical image, and relates to the technical field of medical image modeling, and the method comprises the steps: obtaining an airway segmentation result of a target group chest CT image, and obtaining a volume median model as a reference model; performing affine registration on other models by taking the reference model as a target to form a preliminary registration model group; a sample subset is selected from the sample subsets for nonlinear deformation registration, and a precise registration model set is obtained; then, superposing the fine registration model group and the reference model to generate an airway occurrence probability graph, and calculating a spatial adaptive threshold graph according to the spatial consistency of airway skeletons of the fine registration model group and the reference model; and finally, voxels with probability values higher than corresponding threshold values are extracted to generate a normalized respiratory tract model, statistical shape modeling is performed in combination with the fine registration model group, and a main variation mode of the airway form of the target group is extracted, so that standardization of the airway structure of the target group can be realized, a basic template is provided for group comparison, disease recognition and the like, and main variation of the form is quantified.

The invention relates to the technical field of aerosol generating devices, and discloses an air passage structure and an aerosol generating device. According to the air passage structure provided by the invention, the flow guide surface is arranged between the inlet of the main air passage and the confluence cavity, and the flow guide surface is gradually shrunk, so that air flow can smoothly enter the main air passage through the flow guide surface after being converged in the confluence cavity and changing the flow direction, and the converged air flow is prevented from directly impacting a sharp edge or a right-angle turning area in an original structure; and the phenomena of airflow separation, violent vortex and flow velocity sudden change caused by sudden airflow blocking and sudden direction change are improved, so that the aerodynamic noise is reduced. Meanwhile, due to the gradual shrinking design of the flow guide face, airflow can stably enter the main air channel in an accelerated mode, flow resistance and energy loss are reduced, suction resistance is reduced, and the suction smoothness degree of a user is improved.

The utility model discloses a hand -held oxygen generator's integrated type air intake subassembly of oxygen generating equipment field, including air flue board, first solenoid valve and second solenoid valve, be equipped with air intake passage, connecting channel and exhaust passage on air flue board, the number of connecting channel is two, is connected with air intake passage and exhaust passage through first solenoid valve and second solenoid valve respectively, when the power of first solenoid valve and second solenoid valve is off, corresponding connecting channel is communicated with air intake passage, when the power is on, corresponding connecting channel is communicated with exhaust passage. The utility model discloses through the structural design to air intake passage, connecting channel and exhaust passage, make two molecular sieve tank share air intake passage and exhaust passage to reduce the air flue number, make the structure more compact and simple, and under the cooperation of solenoid valve and air flue structure, when the equipment is in the closed state, the air intake end of two molecular sieve tanks is cut off with outside through air flue board and solenoid valve, can avoid the problem that molecular sieve inhales the moisture failure.

This utility model provides an airway structure for a foolproof e-cigarette cartridge, including a cartridge body, an atomizing core assembly, and a lower sealing e-liquid assembly. The atomizing core assembly is disposed within the cartridge body, and the lower sealing e-liquid assembly is disposed at the lower end of the cartridge body. The lower sealing e-liquid assembly includes a lower sealing silicone, a cartridge base, a central electrode block, and an electrode component. The lower end face of the cartridge base has an air inlet and a central mounting groove. The central electrode block is disposed in the central mounting groove, and the air inlet is disposed on the side of the central mounting groove. An airway groove and a connecting cylinder are disposed within the cartridge base. The lower sealing silicone is sleeved on the cartridge base, and the inner wall of the lower sealing silicone and the airway groove form an air intake channel. One end of the air intake channel communicates with the air inlet. The lower end of the atomizing core assembly is installed in the connecting cylinder, and the connecting cylinder has an air intake notch communicating with the other end of the air intake channel. The beneficial effect is that the combination of the air inlet, airway groove, and air intake notch improves the user's vaping experience.

This utility model relates to the field of air conditioning ducts and discloses a ventilation duct structure for air conditioning in ship cabins. The duct includes a flattened oval shape. One end of the duct is fixedly connected to a flange, and the other end is fixedly connected to a flange. Two sets of ducts are provided, and an airflow stabilizing component is installed at the right-angle connection between the two sets of ducts. The airflow stabilizing component includes a fixing groove formed on the inner wall of the duct. In this utility model, by setting the airflow stabilizing component and installing an adjusting block at the right-angle connection of the duct, the crescent-shaped adjusting block is embedded in the bend of the duct to change the local cross-sectional shape, making it similar to the cross-section of the flattened oval duct, thus guiding the airflow to a smooth direction. Simultaneously, a T-shaped connecting block stably fixes the adjusting block to the two sets of ducts, and a magnetic strip is used to stably adhere it to the inner wall of the duct, ensuring that the adjusting block does not shift under the impact of high-speed airflow, thereby improving the stability of the gas flow inside the duct.

The invention discloses an oil tank breather valve which comprises a mounting shell, an air guide pipe, a manual pressing assembly and a valve shaft. One end of the mounting shell is provided with an air inlet hole and mounting threads and is used for being fixedly connected with an oil tank; the manual pressing assembly comprises a manual valve shell, a hand pushing shaft and a torsional spring, and a structure capable of achieving manual air inlet and exhaust control is arranged in the manual pressing assembly. The valve shaft is of an integrated three-section structure and sequentially comprises a damping part, a guiding part and an air channel sealing part which are used for guiding positioning, air channel control and sealing damping. The valve sealing seat is matched with the sealing body, pre-pressing is provided through the spring, the valve shaft is driven to be opened or closed when external air pressure changes, and automatic air inlet or exhaust is achieved. The air channel structure integrates an annular air channel, a horizontal air channel and an air hole and is matched with a groove in the valve shaft to form a high-integration-level conduction path. By arranging multiple sealing rings and a damping pressure equalizing structure, the sealing performance and the operation stability are effectively improved.

The present invention provides a carrier device and semiconductor processing equipment. The carrier device includes a base body, wherein the plane on which the base body carries the wafer is a reference plane. The base body has an annular protrusion, the top surface of which is flush with the reference plane and is used to support and seal the edge area of ​​the wafer. The base body also has a first surface and a second surface below the reference plane, the first surface being close to the inner peripheral edge of the annular protrusion and the second surface being located in the center area of ​​the base body. The base body also has a third surface located between the first and second surfaces and recessed away from the reference plane. The first, second, and third surfaces are all distributed with interconnected airway structures. This solution can improve the uniformity of pressure distribution between the wafer and the base, thereby improving process uniformity.

The utility model relates to the field of electronic cigarette discloses an air switch air channel structure of preventing condensate, including zinc alloy shell, PCB assembly, air adjusting device, POD oil storehouse base and data line storage mechanism, data line storage mechanism includes fixed box, the fixed box in top end fixed setting has micro motor, the micro motor output fixedly covers and sets up one no. In the utility model, the data line does not need to be carried additionally, the problem that traditional data line is lost or forgotten can be effectively avoided, after charging, the micro motor can be started to wind the data line neatly back to the outer end of the first binding roller.

The utility model relates to the technical field of heat exchange equipment, in particular to an exchanger air channel structure and a shell and tube type evaporator heat exchange assembly with the same, which comprise a shell and tube type evaporator main body and a fin type heat exchanger main body, and an air inlet pipe and an air outlet pipe of the fin type heat exchanger main body are both fixedly connected with the shell and tube type evaporator main body. A heat exchange cavity is formed in the shell and tube evaporator body, and a shell and tube evaporator core is fixedly installed in the heat exchange cavity. According to the aluminum plate-fin heat exchanger, high-temperature fluid is primarily cooled through the high heat transfer coefficient of the aluminum plate-fin heat exchanger, the pre-cooled fluid enters a shell and tube evaporator, efficient heat exchange is still kept under the low temperature difference, residual heat is deeply recycled, the heat recovery efficiency is greatly improved, and compared with the prior art, the heat recovery efficiency is remarkably improved.

The invention relates to the technical field of atomization equipment, in particular to an atomizer and an electronic atomization device. The atomizer comprises a shell, wherein one end of the shell in the first direction is provided with a suction nozzle setting position; the heating body is arranged in the shell; the cache cavity is formed in the side, away from the suction nozzle arrangement position, of the heating body and used for caching aerosol generated by the heating body; the air inlet channel and the discharge channel are both communicated with the buffer cavity, and the buffer cavity is located between the air inlet channel and the discharge channel to jointly form an atomization air channel of the atomizer; the air inlet channel is provided with an air inlet communicated with the outside of the shell, and the air inlet is located between the buffer cavity and the suction nozzle arrangement position in the first direction, so that when the atomizer is in the posture that the suction nozzle arrangement position faces upwards, atomized liquid is limited to block the air inlet before the buffer cavity is filled with the atomized liquid; the discharge channel extends to the suction nozzle arrangement position so that the aerosol in the cache cavity can be discharged. The problem that the atomization air channel is prone to being blocked by leaked liquid is solved, and the reliability of the air channel structure is improved.

The invention relates to the technical field of cardio-pulmonary resuscitation (CPR) and automatic external defibrillator (AED) training and assessment, in particular to a multi-sensing CPR-AED integrated assessment method capable of real-time feedback and data reporting, which comprises a model main body, a sensor array module, an action standard sensing module, a data processing module, a human-computer interaction module, a power supply module and a working mode, the model main body simulates an upper body structure of a human body and comprises a chest area used for cardio-pulmonary resuscitation (CPR) operation, an electrode plate pasting area used for electric defibrillation (AED) operation and a simulated airway structure, and the chest area is made of a high-elasticity material; data are collected through the model main body and the sensor array module, specifications are detected through the action specification sensing module, and an exercise and assessment mode is set; the other part introduces an intelligent model containing multiple types of sensors and a data processing and interaction unit aiming at traditional assessment pain points, dual modes are set, data can be acquired and analyzed to generate a report, and the assessment objectivity is technically improved through the two modes.

The utility model relates to the technical field of compressors, in particular to a noise reduction non-return structure for a special-shaped air passage of a rotary vane compressor, which comprises a shell and a front end cover arranged on one side of the shell, an air inlet and an air outlet are arranged on the outer surface of the shell, and the air inlet is arranged close to one end of the front end cover; an end cover cavity is formed in the side, facing the shell, of the front end cover, an air guide cavity, a working cavity and an exhaust cavity are formed in the shell, the air guide cavity is formed in the air inlet, the end cover cavity communicates with the air guide cavity and the working cavity, and the exhaust cavity is formed in the air outlet and communicates with the end, away from the end cover cavity, of the working cavity; and the air guide cavity is L-shaped, and a check valve is clamped in the air guide cavity. The air passage structure is optimized, airflow noise during operation of the compressor is effectively reduced, comfort of a driver and passengers is improved, the check valve is arranged in the air passage structure, the reverse rotation trend during shutdown of the compressor is controlled, abrasion and noise caused by reverse rotation are eliminated, and therefore the service life of the compressor is prolonged, and the working performance of the compressor is improved.

A needle seat structure for reducing particle pollution of an electrode needle of a static eliminator belongs to the field of static elimination. Comprising an electrode needle, a cylindrical electrode needle mounting piece fixedly connected with the electrode needle is arranged on the electrode needle, and a cylindrical boss is arranged on the top of the cylindrical electrode needle mounting piece; an electric connection fixing piece with an inverted barrel-shaped structure is arranged; the electrode needle is located at the center of the shaft and penetrates through the whole electrode needle mounting piece, and the tail of the electrode needle is higher than a cylindrical boss at the top of the electrode needle mounting piece; the electrode needle mounting piece and the electric connection fixing piece are fixed together to form a cylindrical structure as a whole; an air channel component which is matched with the electrode needle mounting piece and is used for forming a circular-tube-shaped air channel is arranged; the air channel component is of an axial symmetry structure and is coaxially installed on the rod core of the ion rod with the electrode needle installation piece. By arranging a circular-tube-shaped air channel structure, the protection space of the electrode needle and the needle cone part of the electrode needle is enlarged, and the adsorption probability of pollution particles is reduced.

The application discloses a woven forming airway pneumatic pressing device and a preparation method thereof, and aims to solve the problems of low durability and low sealing property of the device in the prior art. The device comprises a main body, a gas path interface assembly is arranged on one side of the main body, the main body comprises at least one airway structure and at least one air-permeable structure, the airway structure is connected with the air-permeable structure, the airway structure comprises a first composite layer and a second composite layer, the first composite layer and the second composite layer are oppositely arranged, and the inner surfaces of the first composite layer and the second composite layer form a closed airway inner cavity. The airway structure for inflation and deflation is directly formed in the main body, and the sealing connection of the airway and the gas path interface assembly is considered in the process of forming the air-tight structure, so that the durability and the sealing property of the device are improved.

This relates to a device to prevent clogging of a garbage collection net, which is mainly used to cover the garbage collection basket of a kitchen sink drain. [Solution] The dust net clogging prevention device is an airway structure 1 made of a combination of shaped plates or cylindrical supports that is interposed between the dust basket 13 provided at the drain outlet of the sink and the dust net, and secures a compartment for air to pass through when water is running.

The utility model relates to the technical field of electronic cigarettes, in particular to an independent airway structure of an electronic cigarette. The independent air channel structure comprises an oil cup, oil storage cotton and lower silica gel. Lower silica gel is sealed at the lower end of the oil cup; the device further comprises an airway support and a lower shell. An air outlet matched with the lower silica gel is formed in the top end of the air passage bracket, and the bottom end of the air passage bracket is open; the lower shell is in sealing fit with the bottom end of the air channel support and provided with an air inlet. According to the utility model, the problems caused by the adoption of a silica gel airway are solved; the method can be applied to the airway structure of the electronic cigarette.

This invention discloses an electromagnetic registration method, device, and medium for a bronchial navigation system, relating to the fields of medical navigation and electromagnetic positioning technology. The method first acquires CT image data of the target bronchus, constructs a three-dimensional image space, and completes airway image segmentation. Then, based on the airway image segmentation results, it extracts key points of the bronchus and the airway centerline in the image space, while simultaneously acquiring the corresponding key points and centerline point sets in the actual space using an electromagnetic positioning system. Subsequently, it uses the dual-space key points to complete coarse registration of the discrete point set, obtaining an initial rigid body transformation matrix. Finally, it uses this matrix to initialize the pose of the image centerline, and employs a point cloud iterative algorithm to complete fine registration of the centerline, outputting the final spatial transformation matrix. This invention employs a deep learning key point extraction and a two-stage coarse and fine registration strategy, significantly improving the robustness and accuracy of bronchial navigation registration, and adapting to precise navigation of equipment with complex airway structures.

The application belongs to the field of flexible airtight sealing, and particularly relates to a flexible airtight sealing method for a large opening of an aircraft exhaust duct. According to the profile design principle of a rigid device on the cross section of a large opening at the rear end of an exhaust duct structure determined according to the airtight sealing principle, a flexible device is arranged to perform flexible plugging of the gap. The maximum deformation of a circumference in theoretical deformation data is selected as a unified size design allowance of the rigid device and the large opening at the rear end of the exhaust duct structure. Based on the ballast value and the pressure center, a load transmission device is connected to the rigid device of the sealing device of the large opening at the rear end of the exhaust duct structure, and the internal pressurized load acting on the sealing device of the large opening at the rear end is transmitted to a test bearing device. The flexible airtight sealing of the aircraft exhaust duct structure by the flexible device can ensure the airtightness of the aircraft exhaust duct structure without being limited by geometric characteristics, and is not only suitable for conventional exhaust duct structures, but also suitable for more complex special-shaped curved structures.

This invention relates to the field of image data visualization technology, and more particularly to an imaging system and method for visualizing pulmonary edema. The visualization catheter includes a broadband image sensor disposed at a probe at the catheter's tip, and a multi-band LED light source surrounding the broadband image sensor. An image analysis module is used to determine the airway structural complexity by acquiring the airway cross-sectional area and airway contraction frequency based on airway images. A light source driving module is used to determine the operating mode of the multi-band LED light source based on the airway structural complexity and lung imaging sensitivity. A light source adjustment module is used to determine the operating adjustment strategy of the multi-band LED light source in response to a strong bias in imaging deviation, combined with the operating mode of the multi-band LED light source. An image adjustment module is used to adjust the spectral feature threshold or the fusion weight of each spectral image according to the result of the adjustment strategy. This invention improves the accuracy of the imaging system for visualizing pulmonary edema.

This utility model relates to the field of electronic cigarette technology and discloses an integrated dual-core, dual-airflow structure for electronic cigarettes. It includes a shell, a display screen shell attached to the left end of the shell, a button assembly located at the left end of the display screen shell, a mouthpiece at the top of the shell, a sealing assembly inserted into the bottom of the shell, and an airflow regulating assembly attached to the bottom of the shell. An oil tank assembly is located inside the shell, and an atomizing assembly is located inside the oil tank assembly. A battery bracket is fixedly connected to the bottom of the inner wall of the shell. This utility model uses atomizing core heating to evaporate the e-liquid inside the oil reservoir. The aerosol generated during heating rises through airflow channels inside a steel tube and enters the mouthpiece through two sets of airflow channels. The user inhales the aerosol through the mouthpiece. The two horizontally arranged atomizing cores and dual airflow channels enhance atomization to achieve optimal effect and taste, providing a better user experience.

The utility model relates to an airway structure which comprises an airway body, an air hole is formed in the airway body, the airway body is connected with an adjusting plate capable of relatively moving, an adjusting hole is formed in the adjusting plate, and the adjusting hole and the air hole at least partially coincide. The utility model further relates to the protective door. The adjusting plate is opposite to the gas pipe main body, so that the overlapping area of the adjusting holes in the adjusting plate and the gas holes in the side face of the gas pipe main body is changed, the area of gas passing through the holes is reduced, the initial speed of the gas ejected out of the holes is higher, and therefore it is guaranteed that the ejected gas can cover a wider range.

This application relates to a gas path structure and a ventilator. The gas path structure is used for gas delivery in the ventilator and includes a gas source, a pressure reducing valve, and a detection branch. The pressure reducing valve includes an input end and an output end. The input end is connected to the gas source, and the output end is used to connect to the user. The detection branch is connected to the output end of the pressure reducing valve and is used to detect the pressure at the output end. Because the detection branch is connected to the output end of the pressure reducing valve, it can detect the pressure at the output end in real time, providing a reference for adjusting the pressure of the pressure reducing valve. Compared to traditional technologies that require disassembling the pressure reducing valve for separate pressure adjustment, the gas path structure provided in this application, by setting a detection branch that can detect the pressure at the output end of the pressure reducing valve, allows for pressure adjustment of the pressure reducing valve without disassembling it. This improves the convenience of pressure adjustment during factory testing, fault diagnosis, troubleshooting, and maintenance. A ventilator including the above-mentioned gas path structure makes pressure adjustment of the pressure reducing valve more convenient.

The present invention provides a method, device, equipment and medium for intrabronchial navigation, including: obtaining navigation data collected in real time during the operation, the navigation data including the position coordinates of the first sensor, the bronchoscope image and the respiratory curve; determining the current bronchial tree model and the current planned path point cloud data corresponding to the current respiratory phase according to the respiratory curve; obtaining the current virtual coordinates of the first sensor in the medical image coordinate system according to the first conversion relationship and the position coordinates of the first sensor; determining whether the current intervention end is located on the planned path according to the bronchoscope image, the current bronchial tree model, the current planned path point cloud data and the current virtual coordinates. The present invention eliminates the influence of respiratory movement on the airway structure and improves the registration accuracy. The virtual planned path is mapped to the corresponding cavity of the bronchoscope image through path matching recognition, indicating the route of travel, and adaptively fitting movement and deformation to improve the accuracy of registration navigation.

The utility model provides an air channel structure and an atomization device, and relates to the technical field of electronic atomization, the air channel structure comprises an air inlet, an air outlet and a first airflow channel, and the first airflow channel is configured to allow airflow to flow from the air inlet to a first air outlet end; the second airflow channel is configured to allow airflow to flow from the second air inlet end to the air outlet; the air inlet end of the air inlet distribution mechanism is communicated with the first air outlet end, and the air outlet end is communicated with the air outlet and the second air inlet end; the air inlet distribution mechanism is configured to distribute air flow exhausted by the first air flow channel to the air outlet or at least partially distribute the air flow exhausted by the first air flow channel to the second air flow channel. The atomization device comprises an airway structure and a first aerosol generation assembly used for generating first aerosol. The first airflow channel penetrates through the first aerosol generating assembly; the second aerosol generating component is used for generating second aerosol; the second airflow channel passes through the second aerosol-generating component. According to the invention, switching adjustment of various aerosol tastes is realized.