Energy absorbing device and method

Abstract

The embodiment of the present application discloses an energy absorption device, which comprises a microwave transmission line, the microwave transmission line comprises a transmission conductor, a first energy absorption medium and a transmission ground, the transmission ground is arranged around the transmission conductor to form a shielding shell, and the first energy absorption medium and the transmission conductor are arranged in the shielding shell; the transmission conductor comprises a first end, the first end of the transmission conductor penetrates through the shielding shell; and the first energy absorption medium is used for absorbing the energy of a microwave signal when the microwave signal is fed into the first end of the transmission conductor. The embodiment of the present application utilizes the medium in the microwave transmission line to realize energy absorption. The energy absorption of the medium can be controlled by adjusting a microwave signal source, the energy utilization rate is improved, and abundant application scenarios are provided.

Description

Technical Field

[0001] This application relates to the field of microwave application technology, and in particular to a microwave absorption device and method. Background Technology

[0002] Given the current situation of a large population, severe energy shortages, and deteriorating environmental conditions, achieving energy conservation and emission reduction, and promoting new energy sources are urgently needed. How to improve energy efficiency is a problem that existing technologies urgently need to solve. Summary of the Invention

[0003] This application provides an energy absorption device to solve or alleviate one or more technical problems in the prior art.

[0004] As one aspect of the embodiments of this application, this application provides an energy absorption device, including a microwave transmission line. The microwave transmission line includes a transmission conductor, a first energy absorption medium, and a transmission ground. The transmission ground is arranged to form a shielding shell around the transmission conductor. The first energy absorption medium and the transmission conductor are disposed within the shielding shell. The transmission conductor includes a first end, which penetrates the shielding shell. The first energy absorption medium is used to absorb the energy of the microwave signal when a microwave signal is fed into the first end of the transmission conductor.

[0005] As one aspect of the embodiments of this application, this application provides an energy absorption device, including a transmission conductor and a transmission ground. The transmission ground is arranged around the transmission conductor to form a liquid storage tank, and the transmission conductor is disposed inside the liquid storage tank. The liquid in the liquid storage tank, the transmission conductor, and the transmission ground form a microwave transmission line. The transmission conductor includes a first end, and the first end of the transmission conductor penetrates the shielding shell. When a microwave signal is fed into the first end of the transmission conductor, the liquid in the liquid storage tank absorbs the energy of the microwave signal.

[0006] As one aspect of the embodiments of this application, this application provides an energy absorption method, applied to the energy absorption device provided in any embodiment of this application, the method comprising:

[0007] The working status of the target position in the first energy absorption medium is obtained;

[0008] Based on the working status of the target location, the working parameters of the microwave signal output by the microwave generator are determined; the microwave output port of the microwave generator is connected to the first end of the microwave transmission line in the energy absorption device.

[0009] This application's embodiments employ the above-described technical solution, utilizing the medium in a microwave transmission line to achieve energy absorption. By adjusting the microwave signal source, the energy absorption of the medium can be controlled, improving energy utilization and providing a wide range of application scenarios.

[0010] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0011] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0012] Figure 1 A schematic diagram of the structure of a microwave heating device according to an embodiment of this application is shown.

[0013] Figure 2 A schematic diagram of a microwave transmission segment according to an embodiment of this application is shown.

[0014] Figure 3 A schematic diagram of a microwave transmission segment according to an embodiment of this application is shown.

[0015] Figure 4 A schematic diagram of a microwave transmission segment according to an embodiment of this application is shown.

[0016] Figure 5 A schematic diagram of the structure of a microwave heating device according to an embodiment of this application is shown.

[0017] Figure 6 A schematic diagram of the structure of a microwave heating system according to an embodiment of this application is shown.

[0018] Figure 7 A schematic diagram of the structure of a gaseous substance generating apparatus according to an embodiment of this application is shown.

[0019] Figure 8 A schematic diagram of the structure of a gaseous substance generating apparatus according to an embodiment of this application is shown.

[0020] Figure 9 A schematic diagram of the structure of a gaseous substance generating apparatus according to an embodiment of this application is shown.

[0021] Figure 10 A schematic diagram of a shielding housing according to an embodiment of this application is shown.

[0022] Figure 11A schematic diagram of a shielding housing according to an embodiment of this application is shown.

[0023] Figure 12 A schematic diagram of the structure of a gaseous substance generating apparatus according to an embodiment of this application is shown.

[0024] Figure 13 A schematic diagram of the structure of a gaseous material generating system according to an embodiment of this application is shown.

[0025] Figure 14 A schematic diagram of the structure of a non-combustion smoking device according to an embodiment of this application is shown.

[0026] Figure 15 A schematic diagram of the structure of a non-combustion smoking device according to an embodiment of this application is shown.

[0027] Figure 16 A schematic diagram of the structure of the shielding cavity according to an embodiment of this application is shown.

[0028] Figure 17 A schematic diagram of the structure of a non-combustion smoking device according to an embodiment of this application is shown.

[0029] Figure 18 A schematic diagram of the structure of a non-combustion smoking device according to an embodiment of this application is shown.

[0030] Figure 19 A schematic diagram illustrating an example structure of a non-combustion smoking device according to an embodiment of this application is shown.

[0031] Figure 20 A schematic diagram of the structure of a tobacco product according to an embodiment of this application is shown.

[0032] Figure 21 This is a schematic flowchart illustrating the microwave output control method provided in an embodiment of this application.

[0033] Figure 22 This is a schematic flowchart illustrating the microwave output control method provided in an embodiment of this application.

[0034] Figure 23 This document shows a flowchart illustrating the output frequency control method provided in an embodiment of this application.

[0035] Figure 24 This is a flowchart illustrating the method for controlling the output of a microwave generator according to an embodiment of this application.

[0036] Figure 25 This is a flowchart illustrating a method for determining the range of output frequencies provided in an embodiment of this application.

[0037] Figure 26 A schematic diagram of the structure of the microwave heating device provided in the embodiments of this application is shown.

[0038] Figure 27 This diagram illustrates the output frequency adaptive control process provided in an embodiment of this application.

[0039] Figure 28 This diagram illustrates the power adaptive control process provided in an embodiment of this application.

[0040] Figures 29 to 32 The following are schematic diagrams of the structure of the microwave heating device provided in the embodiments of this application.

[0041] Figure 33 This is a schematic diagram of the structure of the microwave output control device provided in an embodiment of this application.

[0042] Figure 34 This is a schematic diagram of the structure of the terminal device provided in an embodiment of this application. Detailed Implementation

[0043] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0044] This application provides an energy absorption device. In one exemplary embodiment, such as... Figure 1 The energy absorption device shown includes a microwave transmission line 100, which includes a transmission conductor 10, a first energy absorption medium 30, and a transmission ground. The transmission ground is arranged around the transmission conductor 10 to form a shielding shell 40. The first energy absorption medium 30 and the transmission conductor 10 are disposed within the shielding shell 40. The transmission conductor 10 includes a first end 11, which penetrates the shielding shell 40. The first energy absorption medium 30 is used to absorb the energy of the microwave signal when a microwave signal is fed into the first end 11 of the transmission conductor 10.

[0045] In some embodiments, the shielding housing 40 can be a fully enclosed housing or a semi-open housing. In some embodiments, the first end 11 of the transmission conductor 10 penetrates through the shielding housing 40, or the first end 11 may be exposed on the outer surface of the shielding housing 40, so that the first end 11 can be coupled to the microwave signal source. Exemplarily, the first end 11 may protrude partially relative to the outer surface of the shielding housing 40, or the first end 11 may be flush with the shielding housing 40.

[0046] The transmission conductor and transmission ground of a microwave transmission line can take many forms.

[0047] In some embodiments, the transmission conductor may include a microwave transmission segment. As an example, such as... Figure 2 As shown, the microwave transmission segment is arranged to form a columnar structure with an internal cavity. The microwave transmission segment can be formed around a central axis to form this columnar structure, and the internal cavity can accommodate a first energy-absorbing medium.

[0048] For example, the microwave transmission segment forms the side of the columnar structure through multiple bends. As another example, the microwave transmission segment can be shaped like a helical spring.

[0049] In some embodiments, the shielding shell is a hollow cylinder, sphere, frustum, cuboid, or cone.

[0050] The functions and effects of the various forms of transmission conductors and transmission grounds provided in the embodiments of this application will be described in detail in the following application examples.

[0051] In one exemplary embodiment, the energy absorption device may include a transmission conductor and a transmission ground, wherein the transmission ground is disposed around the transmission conductor to form a liquid storage tank, and the transmission conductor is disposed within the liquid storage tank; the liquid in the liquid storage tank, the transmission conductor, and the transmission ground form a microwave transmission line, the transmission conductor including a first end, the first end of the transmission conductor penetrating the shielding housing; the liquid in the liquid storage tank absorbs the energy of the microwave signal when a microwave signal is fed into the first end of the transmission conductor.

[0052] For example, the energy absorption device including the liquid storage tank can be an appliance such as an iron, water heater, or humidifier.

[0053] This application also provides an energy absorption method, which can be applied to the energy absorption device provided in any embodiment of this application. The method includes:

[0054] The working status of the target position in the first energy absorption medium is obtained;

[0055] Based on the working status of the target location, the working parameters of the microwave signal output by the microwave generator are determined; the microwave output port of the microwave generator is connected to the first end of the microwave transmission line in the energy absorption device.

[0056] This application embodiment adjusts the operating parameters of the microwave generator according to the working state of the target location, enabling the microwave generator's operating parameters to adaptively adjust to the ideal working state, thereby improving energy utilization.

[0057] For example, obtaining the operating state of a target location in a first energy-absorbing medium includes:

[0058] Within the set operating parameter range, determine the operating parameters of the microwave signal output by the microwave generator according to the set step value;

[0059] Based on the operating status of the target location, determine the operating parameters of the microwave signal output by the microwave generator, including:

[0060] Based on the working state of the first energy absorbing medium, determine whether the energy absorbed at the target location is higher than the energy absorbed at multiple non-target locations of the first energy absorbing medium;

[0061] If the energy absorbed at the target location is higher than the energy absorbed at multiple non-target locations of the first energy absorbing medium, then the operating parameters of the microwave signal output by the microwave generator are determined.

[0062] In an exemplary embodiment, the operating parameters of the microwave signal output by the microwave generator are adjusted to maximize the energy at the target location.

[0063] For example, before obtaining the working state of the target position in the first energy absorption medium, the method further includes: setting the target position.

[0064] In an exemplary embodiment, the target position can be customized, and the operating parameters of the microwave signal output by the microwave generator can be adaptively adjusted as the target position changes.

[0065] In the embodiments of this application, the first energy-absorbing medium absorbs energy in the form of dielectric loss, and the energy can be utilized in various ways. The embodiments of this application provide a wide range of energy utilization methods.

[0066] It should be understood that this application provides various application examples, describing the detailed features of energy absorption devices and methods for different application scenarios. However, these features are not only applicable to specific application scenarios but can also be applied to other application scenarios. Therefore, the various embodiments and application examples of this application can be freely combined.

[0067] Application Example 1

[0068] The energy absorption device provided in this application embodiment can be used for heating, as a microwave heating device.

[0069] As an exemplary implementation method, reference can be made to Figure 1 According to an embodiment of this application, the microwave heating device may include a microwave transmission line 100 and a microwave feed port (not shown in the figure). The microwave transmission line 100 includes a transmission conductor 10, an auxiliary medium 20, and a transmission ground. The transmission ground is arranged to form a shielding shell 40 around the transmission conductor 10, and the auxiliary medium 20 and the transmission conductor 10 are disposed within the shielding shell 40. The transmission conductor 10 includes a first end 11, which penetrates the shielding shell 40; the microwave feed port is connected to the first end 11.

[0070] The microwave feed port is used to receive microwave signals; the shielding housing 40 is used to place the object to be heated 30; the microwave heating device is used to heat the object to be heated 30.

[0071] The transmission ground of the microwave transmission line 100 forms a shielded housing 40. The microwave signal input from the microwave feed port enters the shielded housing 40 and is transmitted along the transmission conductor 10. The shielded housing reduces microwave signal leakage. In some embodiments, the shielded housing 40 can be a fully enclosed housing or a semi-open housing. In some embodiments, the first end 11 of the transmission conductor 10 penetrates the shielded housing 40, or the first end 11 may be exposed on the outer surface of the shielded housing 40, allowing the first end 11 to couple with the microwave signal source. For example, the first end 11 may protrude slightly from the outer surface of the shielded housing 40, or it may be flush with the shielded housing 40. An auxiliary medium 20 is used to fill the shielded housing 40 to form a microwave transmission line. The microwave signal is transmitted in the microwave transmission line 100. The object to be heated 30 is placed in the shielded housing 40. The object to be heated 30 can be considered a medium in the microwave transmission line. During transmission, microwave energy is converted into heat energy by the object to be heated 30 and the auxiliary medium 20 and consumed, thus achieving microwave heating.

[0072] The auxiliary medium 20 may include an electrical and / or magnetic medium, and the transmission conductor 10 may include a conductive material, such as a metal. The auxiliary medium 20 can also be used to isolate the transmission conductor 10 from the object to be heated 30 to prevent direct contact between the two, which could damage the transmission conductor 10, such as causing it to rust, corrode, or leave harmful substances on it. In some embodiments, the auxiliary medium 20 may include one or more of air, plastic, PCB board, or ceramic.

[0073] As an exemplary embodiment, the loss tangent of the object to be heated 30 is greater than the loss tangent of the auxiliary medium 20, meaning the microwave heating device is used to heat the object to be heated 30, whose loss tangent is greater than that of the auxiliary medium 20. Because the loss tangent of the object to be heated 30 is greater than that of the auxiliary medium 20, more energy is lost on the high-loss object to be heated 30, thus achieving the heating of the object to be heated 30.

[0074] For example, the loss tangent of the auxiliary medium 20 is less than 0.02. Having a loss tangent less than 0.02 ensures that the loss tangent of the auxiliary medium 20 is less than the loss tangent of most objects requiring heating, thus meeting the heating requirements of most current application scenarios. Furthermore, using 0.02 as the critical value, rather than an excessively small loss tangent value, increases the influence of the auxiliary medium 20 on the heating effect and improves the adjustability of the heating effect.

[0075] For example, the auxiliary medium 20 is air or ceramic. The loss tangent of air is 0.0009, and the loss tangent of ceramic is 0.001. Air or ceramic are common materials with small loss tangents, which reduces the cost and implementation difficulty of microwave heating devices while ensuring heating effect.

[0076] As an exemplary implementation, this application also provides a microwave heating device for heating an object to be heated. The microwave heating device includes a transmission conductor, a transmission ground, and a microwave feed port. The transmission conductor, transmission ground, and the object to be heated form a microwave transmission line. A shielding shell is formed around the transmission conductor, and the transmission conductor is disposed within the shielding shell. The shielding shell is used to hold the object to be heated. The transmission conductor includes a first end that penetrates the shielding shell. The microwave feed port is connected to the first end. The microwave feed port is used to receive microwave signals. In this application embodiment, the object to be heated can also be used as the medium of the microwave transmission line, with microwave energy loss occurring on the object to be heated, thus achieving heating.

[0077] Based on any of the above embodiments, as an exemplary embodiment, the transmission conductor 10 further includes a second end, which is disposed within the shielding housing 40, and is either open-circuited or short-circuited with the shielding housing 40. An open circuit means the second end is not in direct contact with the shielding housing 40, while a short circuit means the second end is in direct contact with the shielding housing 40.

[0078] For example, such as Figure 1 As shown, the transmission conductor 10 also includes a microwave transmission section 12. The microwave transmission section 12 is disposed inside the shielding housing, and the microwave transmission section 12 may be in the shape of a helical spring.

[0079] like Figures 2 to 4 The diagram shown illustrates a microwave transmission segment; the microwave transmission segment can also be presented as... Figure 3 The zigzag shape shown. Alternatively, it can be formed by multiple bends. Figure 4 The harpoon-shaped or Figure 2 The hollow column shape shown. For example, as... Figure 2 As shown, the microwave transmission section of the transmission conductor forms a columnar structure with an internal cavity. This columnar structure can be formed around a central axis, and the internal cavity can accommodate the object to be heated or an auxiliary medium. Exemplarily, the microwave transmission section can form the sides of this columnar structure through multiple bends.

[0080] The transmission conductor has one or more bends or spirals within the shielded housing, which can increase the transmission path in a limited space and improve the heating speed and effect.

[0081] As an exemplary implementation, the shielding shell of this application embodiment includes a cover and a container that cooperates with the cover, with a first end penetrating through the cover or the container. Figure 5 The schematic diagram of the microwave heating device shown indicates that the transmission conductor 10 can be straight. The transmission conductor 10 can be fixed above, below, or at other locations on the object 30 to be heated. The shielding shell 40 formed by the transmission can be a cuboid with a cover on top, consisting of a cover 41 and a container 42, facilitating the placement and removal of the object 30 to be heated. Small holes can be made in the cover 41 or container 42 to provide space for the coaxial feed structure of the transmission conductor 10. The first end of the transmission conductor 10 passes through the cover or container and connects to the microwave feed port. It should be understood that the shielding shell 40 can also be other shapes, such as a column, platform, or cone.

[0082] For example, the auxiliary medium can be a solid medium, and the auxiliary medium is provided with a placement part for placing the object to be heated. For example, the auxiliary medium can be ceramic, the shielding shell includes a cover and a container, a transmission conductor is provided at the bottom of the container, the auxiliary medium is provided above the transmission conductor, and the placement part of the auxiliary medium is used to place the object to be heated. The ceramic medium plays an insulating role. The shape of the placement part is not limited, and various structures that are conducive to the placement of objects can be designed to improve practicality.

[0083] For example, the shielding housing may also have holes, the diameter of which is smaller than the wavelength of the microwave signal input to the microwave feed port. This embodiment of the application utilizes the loss of the microwave transmission line for heating, and the shielding housing can have holes; therefore, the microwave heating device of this embodiment can heat volatile substances and maintain internal and external air pressure balance.

[0084] As an exemplary implementation, such as Figure 6 The schematic diagram of the microwave heating system shown illustrates that this application also provides a microwave heating system including a microwave generator 50 and a microwave heating device 60 as provided in any embodiment of this application. The microwave output terminal of the microwave generator 50 is connected to the microwave feed port of the microwave heating device 60. The number of microwave generators 50 and microwave heating devices 60 can be one or more. The microwave generator 50 may include a semiconductor microwave generator or an electronic vacuum microwave generator.

[0085] For example, the microwave signal output by the microwave generator 50 is a continuous wave or a pulsed microwave. Pulsed microwaves are discontinuous waves, which can save power consumption in the heating process while maintaining temperature stability.

[0086] For example, the microwave generator 50 may include a controller 51. The controller 51 can set one or more of the waveform, frequency, operating phase, power, and duty cycle of the microwave signal output by the microwave generator. For instance, the controller 51 can set the microwave signal output by the microwave generator 50 to be a square wave, sine wave, or triangle wave, etc. The controller 51 can also set the microwave generator 50 to output a phase-modulated or frequency-modulated microwave signal. The free combination of various waveforms, frequencies, operating phases, power, and duty cycles can correspond to various operating modes. This application embodiment provides a microwave generator 50 with adjustable waveform, frequency, operating phase, power, and duty cycle, which can flexibly adjust the heating effect of the microwave transmission line.

[0087] For example, the microwave heating system may also include a power supply 70, which is connected to the power supply port of the microwave generator 50 to provide electrical energy to the microwave generator 50. The power supply 70 may be a DC power supply, including a battery, a DC-DC power supply, or an AC-DC power supply, etc.

[0088] For example, the microwave heating system may further include a human-machine interface unit 80, which is connected to the microwave generator 50. The human-machine interface unit 80 may include a mouse, keyboard, touchscreen, or a button system mounted on the microwave generator. The human-machine interface unit 80 is used to receive control commands from the user and output control signals according to the user's control commands. The controller 51 of the microwave generator 50 sets the microwave signal output by the microwave generator 50 according to the control signal.

[0089] For example, the microwave heating system may further include a network module 90, which records the status information and usage information of the microwave heating system and sends the status information and usage information to a server via a network. The status information may include, for example, the temperature of the microwave heating device or the output power of the microwave generator. The usage information may include, for example, the target heating temperature, heating time, heating duration, or heating mode. The network module 90 may be located inside or outside the microwave generator 50.

[0090] For example, the microwave heating system may also include a sensor 200. For instance, the microwave heating system includes a temperature sensor, which may be disposed within the shielding housing of the microwave heating device, for real-time monitoring of the temperature inside the microwave heating device and feeding it back to the controller, allowing the controller to adjust various operating attributes of the microwave heating device based on the real-time temperature. For instance, the microwave heating system includes a power sensor for detecting the transmission power of the microwave generator and feeding it back to the controller, allowing the controller to adjust various operating attributes of the microwave heating device based on the transmission power.

[0091] For example, the microwave heating system may also include a microwave signal amplifier (not shown in the figure). The microwave signal amplifier may be located between the microwave generator and the microwave feed port of the microwave heating device. The microwave signal amplifier is used to amplify the microwave signal.

[0092] Application Example 2

[0093] The energy absorption device provided in this application embodiment can also be used to generate gaseous substances, serving as a gaseous substance generating device. For example, during the process of energy absorption by a medium, various physical or chemical reactions can be used to generate gas, a group of liquid particles suspended in the gas (e.g., mist), or a group of solid particles suspended in the gas (e.g., flue gas).

[0094] As an exemplary implementation, Figure 7 A schematic diagram of a gaseous substance generating apparatus according to an embodiment of this application is shown. Figure 7 As shown, the gaseous substance generating device includes a microwave transmission line 100 and a microwave feed port 200. The microwave transmission line 100 includes a transmission conductor 10, a gaseous substance generating substrate 30, and a transmission ground. A shielding shell 40 is formed around the transmission conductor 10, and the gaseous substance generating substrate 30 and the transmission conductor 10 are disposed within the shielding shell. A first through-hole 41 is provided on the shielding shell 40. The transmission conductor 10 includes a first end that penetrates the shielding shell. The microwave feed port 200 is connected to the first end. The microwave feed port is used to receive microwave signals.

[0095] The transmission ground of the microwave transmission line 100 forms a shielded housing 40. The microwave signal input from the microwave feed port enters the shielded housing 40 and is transmitted along the transmission conductor 10 to prevent microwave energy leakage. A gas generating substrate 30 is placed in the shielded housing 40. The gas generating substrate 30 can be regarded as a medium in the microwave transmission line. During the transmission process, microwave energy is absorbed and consumed by the gas generating substrate 30, generating gas. The gas can be dissipated from the first through hole 41 to the outside of the shielded housing 40.

[0096] For example, such as Figure 7 As shown, the shielding housing may also be provided with a second through hole 42, the diameter of which is smaller than the wavelength of the microwave signal input to the microwave feed port. The second through hole 42 can be used as an air inlet to balance the air pressure inside and outside the shielding housing. The diameter of the first through hole 41 or the second through hole 42 being smaller than the wavelength of the microwave signal can prevent microwave energy loss.

[0097] For example, the first through hole 41 is disposed opposite to the gas generating substrate 30 so that the gas can flow directly out through the first through hole 41 after it is generated, thereby improving the efficiency of gas application.

[0098] As an exemplary embodiment, the transmission conductor 10 further includes a second end, which is disposed within the shielding housing 40, and is either open-circuited or short-circuited with the shielding housing 40. The open circuit means that the second end does not directly contact the shielding housing 40 (e.g., ...). Figure 7 As shown in the diagram, a short circuit can occur when the second end is in direct contact with the shielding housing 40. Alternatively, the second end can penetrate the shielding housing 40.

[0099] This application adopts the above-described technical solution, in which the transmission ground in the microwave transmission line forms a shielded shell. During the transmission of microwave signal energy along the transmission conductor within the shielded shell, it is absorbed and consumed by the gaseous material generating substrate. Through energy absorption and consumption, the gaseous material generating substrate can be uniformly heated and generate gaseous material, solving the problem of uneven heating caused by the Joule effect in existing technologies, which results in residual gaseous material in the substrate.

[0100] In some embodiments, such as Figure 8 As shown, the gaseous substance generating device further includes an auxiliary medium 20, which may include an electrical and / or magnetic medium. The auxiliary medium 20 is disposed within the shielding housing. The auxiliary medium 20 can also serve as the transmission medium for a microwave transmission line. The auxiliary medium 20 can be used to fill the shielding housing 40. Figure 8 As shown, the auxiliary medium can also be used to isolate the transmission conductor 10 from the gas generating substrate 30, preventing the transmission conductor from rusting or corroding, or leaving harmful substances on the transmission conductor 10.

[0101] As an exemplary embodiment, the loss tangent of the gas generating substrate 30 is greater than the loss tangent of the auxiliary medium 20. Because the loss tangent of the gas generating substrate 30 is greater than the loss tangent of the auxiliary medium 20, more energy is consumed in the high-loss gas generating substrate 30, and the energy is mainly used to generate gas, thus improving energy utilization efficiency.

[0102] For example, the loss tangent of the auxiliary medium 20 is less than 0.02. Having a loss tangent of less than 0.02 ensures that the loss tangent of the auxiliary medium 20 is less than the loss tangent of most gaseous material generating substrates. Furthermore, using 0.02 as the critical value, rather than an excessively small loss tangent, increases the influence of the auxiliary medium 20 on energy consumption, improves the adjustability of energy distribution, and facilitates the setting of different operating modes for the gaseous material generating device.

[0103] For example, the auxiliary medium 20 is ceramic. Ceramic has a low loss tangent and is suitable as an insulating material.

[0104] As an exemplary embodiment, the solid auxiliary medium 20 may be provided with a placement portion for placing a gaseous substance generating substrate.

[0105] As an exemplary embodiment, the shielding housing 40 may be provided with an opening for taking in and removing the gaseous material generating substrate. This allows the gaseous material generating substrate to be replaced, avoiding the overall waste of the gaseous material generating device after the gaseous material generating substrate is consumed.

[0106] In some embodiments, such as Figure 9 As shown, the aerosol generating substrate 30 can penetrate the shielding shell 40 and is divided into a first substrate part and a second substrate part. The first substrate part is inside the shielding shell 40, and a part of it is outside the shielding shell 40.

[0107] In any of the above embodiments, the transmission conductor 10 can be straight.

[0108] In some embodiments, the transmission conductor 10 may further include a microwave transmission segment. The microwave transmission segment is disposed within a shielding housing, and the microwave transmission end may be in the shape of a helical spring, a bent line, or may be bent in multiple places to form a harpoon shape or a hollow column shape. The transmission conductor including one or more bends or helical shapes within the shielding housing can increase the transmission path in a limited space, improving the heating speed and effect of the gaseous material generating substrate. For example, the microwave transmission segment of the transmission conductor may form a columnar structure with an internal cavity. The microwave transmission segment may form this columnar structure around a central axis, and the internal cavity may accommodate the object to be heated or an auxiliary medium. Exemplarily, the microwave transmission segment may form the side of this columnar structure through multiple bends.

[0109] As an exemplary embodiment, such as Figure 10 and Figure 11 The schematic diagram of the shielding housing shown shows that the first through hole 41 and / or the second through hole 42 may include multiple small circular holes with radii much smaller than the microwave wavelength, effectively preventing electromagnetic leakage.

[0110] The gaseous substance generating device of this application embodiment can have various application forms:

[0111] Example 1: The gas-generating device can be an electric mosquito repellent, where the gas-generating substrate can be a mosquito repellent tablet or liquid. For example, the mosquito repellent tablet is entirely placed inside a shielded housing, and access and replacement of the tablet are achieved through an opening in the shielded housing. The mosquito repellent tablet acts as a medium for the microwave transmission line, absorbing and consuming microwave energy to generate mosquito-repelling gas.

[0112] Example 2: The gas-generating device can be an electronic cigarette, and the gas-generating substrate can be e-liquid. Inside the shielding shell of the electronic cigarette, a solid auxiliary medium isolates the transmission conductor and the e-liquid. The e-liquid can completely or partially fill the shielding shell. A first and second through-hole on the shielding shell can be located at the top to prevent liquid spillage. Caps can also be provided outside the first and second through-holes on the shielding shell. An opening can be provided on the shielding shell for adding e-liquid. The e-liquid absorbs and consumes microwave energy to generate vapor.

[0113] Example 3: The gas-generating device can be a humidifier, where the gas-generating substrate can be water or a mixture of water and aromatherapy essential oils. The gas-generating substrate absorbs and consumes microwave energy to produce steam.

[0114] It should be understood that the embodiments of this application may have other applications, and are not limited to the application examples described above. Without contradicting each other, the technical features in the various embodiments and application examples of this application can be freely combined.

[0115] This application also provides a liquid-heated gaseous substance generating device, including a microwave transmission line, a microwave feed port, a liquid suction rod, and a bottle. The microwave transmission line includes a transmission conductor and a transmission ground. The transmission ground surrounds the transmission conductor to form a shielding shell, and the transmission conductor is disposed within the shielding shell. A first through-hole is provided on the shielding shell. The transmission conductor includes a first end that penetrates the shielding shell. The microwave feed port is connected to the first end and is used to receive microwave signals. The liquid suction rod includes a first liquid suction section within the shielding shell and a second liquid suction section outside the shielding shell. The second liquid suction section is placed inside the bottle, which is used to hold a liquid gaseous substance generating substrate. The liquid suction rod is used to draw the gaseous substance generating substrate from the bottle to the first liquid suction section. When the gaseous substance generating substrate is liquid, the bottle for holding the liquid is separated from the microwave transmission line, which avoids problems such as rust caused by excessive liquid in the microwave transmission line and optimizes the structure of the microwave transmission line.

[0116] For example, the liquid-based gas-generating matrix can be a mosquito repellent liquid. Figure 12 The diagram shows a schematic of a liquid-heated gaseous substance generating device. As an example, the device is an electric mosquito repellent, including a microwave transmission line 100, a microwave feed port 200, a liquid-absorbing rod 300, and a bottle 400.

[0117] The microwave transmission line 100 includes a transmission conductor 10 and a transmission ground. A shielding housing 40 is formed around the transmission conductor 10, and the transmission conductor 10 is disposed within the shielding housing 40. A first through-hole 41 is provided on the shielding housing 40. The transmission conductor 10 includes a first end that penetrates through the shielding housing 40. A microwave feed port 200 is connected to the first end. The microwave feed port 200 is used to receive microwave signals.

[0118] The liquid-absorbing stick 300 includes a first liquid-absorbing section 310 inside the shielding housing and a second liquid-absorbing section 320 outside the shielding housing. The second liquid-absorbing section 320 is placed inside the bottle 400, which is used to hold mosquito repellent 500. The liquid-absorbing stick 300 is used to draw mosquito repellent 500 from the bottle 400 to the first liquid-absorbing section 310, so that a portion of the mosquito repellent 500 also becomes part of the medium of the microwave transmission line 100. The mosquito repellent 500 can absorb and consume energy in the microwave transmission line 100 and generate mosquito-repellent gas, which is dispersed from the first through-hole 41 to the outside of the shielding housing 40.

[0119] The liquid-heated gaseous material generating device of this application embodiment has a liquid bottle and a microwave transmission line that are separately set up. This avoids problems such as rust caused by excessive liquid in the microwave transmission line and optimizes the structure of the microwave transmission line.

[0120] As an exemplary embodiment, a second through hole is provided on the shielding housing ( Figure 12 (Not explicitly shown), the diameter of the first and / or second through-holes is smaller than the wavelength of the microwave signal input to the microwave feed port. Both the first and second through-holes can be a single hole or multiple holes. Furthermore, the first and second through-holes may include multiple small circular holes with radii much smaller than the microwave signal wavelength to prevent electromagnetic leakage.

[0121] like Figure 12 As shown in the exemplary embodiment, the suction stick 300 is a T-shaped suction stick; the upper part of the T-shaped suction stick is the first suction section 310, and the lower part of the T-shaped suction stick is the second suction section 320.

[0122] As an exemplary embodiment, the device further includes a microwave signal generator 600 and a power supply 700, the output of which is connected or coupled to a microwave feed port 200. For example, an electric mosquito repellent may include an AC power interface 800, such as an AC plug. The power supply may be an AC-DC power supply, outputting DC power to the microwave signal generator to enable it to output a microwave signal. Optionally, the device may include a controller to control its operating mode.

[0123] As an exemplary embodiment, the device further includes a switch 900. The switch 900 includes a button for receiving a user command and a connecting portion for activating power and the microwave generator.

[0124] As an exemplary implementation, such as Figure 13 The schematic diagram of the gaseous substance generation system shown illustrates that this application also provides a gaseous substance generation system, including a microwave generator 50 and a gaseous substance generation device 60 as provided in any embodiment of this application. The microwave output terminal of the microwave generator 50 is connected to the microwave feed port of the gaseous substance generation device 60. The number of microwave generators 50 and gaseous substance generation devices 60 can each be one or more. The microwave generator 50 may include a semiconductor microwave generator or an electrovacuum microwave generator.

[0125] For example, the microwave signal output by the microwave generator 50 is a continuous wave or a pulsed microwave. Pulsed microwaves are discontinuous waves, which can save power consumption in the heating process while maintaining temperature stability.

[0126] For example, the microwave generator 50 may include a controller 51. The controller 51 can set one or more of the waveform, frequency, operating phase, power, and duty cycle of the microwave signal output by the microwave generator. For instance, the controller 51 can set the microwave signal output by the microwave generator 50 to be a square wave, sine wave, or triangle wave, etc. The controller 51 can also set the microwave generator 50 to output a phase-modulated or frequency-modulated microwave signal. The free combination of various waveforms, frequencies, operating phases, power, and duty cycles can correspond to various operating modes. This application embodiment provides a microwave generator 50 with adjustable waveform, frequency, operating phase, power, and duty cycle, which can flexibly adjust the gaseous emission effect of the gaseous material generating device 60.

[0127] For example, the gaseous substance generation system may also include a power supply 70 connected to the power supply port of the microwave generator 50 to provide electrical energy to the microwave generator 50. The power supply 70 may be a DC power supply, including a battery, a DC-DC power supply, or an AC-DC power supply, etc.

[0128] For example, the gaseous substance generation system may further include a human-machine interface unit 80, which is connected to the microwave generator 50. The human-machine interface unit 80 may include a mouse, keyboard, touchscreen, or a button system mounted on the microwave generator. The human-machine interface unit 80 is used to receive control commands from the user and output control signals according to the user's control commands. The controller 51 of the microwave generator 50 sets the microwave signal output by the microwave generator 50 according to the control signal.

[0129] For example, the gaseous substance generating system may further include a network module 90, which records the status information and usage information of the gaseous substance generating system and sends the status information and usage information to a server via a network. Status information may include, for example, the temperature of the gaseous substance generating device or the output power of the microwave generator. Usage information may include, for example, usage duration or usage mode. The network module 90 may be located inside or outside the microwave generator 50.

[0130] For example, the gaseous substance generating system may also include a sensor 200. For instance, the gaseous substance generating system includes a temperature sensor, which may be disposed within the shielding housing of the gaseous substance generating device, for real-time monitoring of the temperature inside the gaseous substance generating device and feeding it back to the controller, allowing the controller to adjust various operating attributes of the gaseous substance generating device according to the real-time temperature. For instance, the gaseous substance generating system includes a power sensor for detecting the transmission power of the microwave generator and feeding it back to the controller, allowing the controller to adjust various operating attributes of the gaseous substance generating device according to the transmission power.

[0131] By way of example, the gaseous material generating system may also include a microwave signal amplifier (not shown in the figure). The microwave signal amplifier may be located between the microwave generator and the microwave feed port of the gaseous material generating device. The microwave signal amplifier is used to amplify the microwave signal.

[0132] Application Example 3

[0133] The energy absorption device provided in this application embodiment can also be used as a non-combustion smoke device.

[0134] As an exemplary implementation, Figure 14 A schematic diagram of a non-combustion smoking device according to an embodiment of this application is shown. The non-combustion smoking device is used to heat a tobacco substrate 30 to be heated. The tobacco substrate 30 to be heated may be in a solid or liquid state, such as tobacco or e-liquid. Figure 14 As shown, the non-combustion smoking appliance includes a transmission conductor 10, a transmission ground, and a microwave feed port. A shielded cavity 40 is formed around the transmission conductor 10, and the transmission conductor 10 is disposed within the shielded cavity 40. A smoke substrate 30 to be heated can be placed within the shielded cavity 40. The smoke substrate 30 can be considered as a medium in the microwave transmission line, forming a microwave transmission line together with the transmission conductor 10 and the shielded cavity 40. A shielding cover 50 is provided on the shielded cavity 40. When the shielding cover 50 is open, the smoke substrate 30 to be heated can be placed into the shielded cavity 40, or the inner chamber of the shielded cavity 40 can be cleaned. When the shielding cover 50 is closed, it forms a sealed chamber with the shielded cavity 40, preventing microwave energy leakage. One or more shielding covers 50 can be provided.

[0135] The transmission conductor 10 penetrates the shielded cavity 40 and connects to the microwave feed port. The microwave feed port is used to receive microwave signals. In some embodiments, the end face of the transmission conductor 10 penetrating the shielded cavity 40 may be exposed on the outer surface of the shielded cavity 40 and coupled to the microwave signal source. Exemplarily, this port may be a portion protruding relative to the outer surface of the shielded cavity 40, or it may be flush with the shielded cavity 40. During the transmission of microwave signal energy in the transmission line, it is absorbed and consumed by the smoke substrate 30 to be heated, thereby achieving microwave heating and generating smoke.

[0136] In some embodiments, such as Figure 15 As shown, the non-combustible smoking appliance may also include an auxiliary medium 20. The auxiliary medium 20 is disposed within the shielding cavity 40 to isolate the transmission conductor 10 from the smoke substrate 30 to prevent direct contact between the transmission conductor 10 and the smoke substrate 30, thus preventing damage to the transmission conductor 10. For example, it could cause the transmission conductor 10 to rust, corrode, or leave harmful substances on the transmission conductor 10. In some embodiments, the auxiliary medium 20 may include one or more of air, plastic, PCB board, or ceramic.

[0137] As an exemplary embodiment, the loss tangent of the tobacco substrate 30 to be heated is greater than the loss tangent of the auxiliary medium 20. That is, the non-combustion smoking device is used to heat the tobacco substrate 30, which has a loss tangent greater than that of the auxiliary medium 20. Because the loss tangent of the tobacco substrate 30 to be heated is greater than that of the auxiliary medium 20, more energy is lost in the high-loss tobacco substrate 30, thus achieving heating of the tobacco substrate 30.

[0138] For example, the loss tangent of the auxiliary medium 20 is less than 0.02. Having a loss tangent less than 0.02 ensures that the loss tangent of the auxiliary medium 20 is lower than the loss tangent of most tobacco products requiring heating, thus meeting the heating requirements of most current types of tobacco products. Furthermore, using 0.02 as the critical value, rather than an excessively small loss tangent value, increases the influence of the auxiliary medium 20 on the heating effect and improves the adjustability of the heating effect.

[0139] For example, the auxiliary medium 20 can be air or ceramic. Air or ceramic are common materials with small loss tangents, which can reduce the cost and implementation difficulty of microwave heating devices while ensuring heating effect.

[0140] For example, the auxiliary medium 20 can be used to support the smoke substrate 30 to be heated. The auxiliary medium 20 can serve as a substrate, disposed on the surface of the transmission conductor 10, to support and isolate the smoke substrate 30 to be heated.

[0141] As an exemplary implementation, such as Figure 16As shown, the non-combustion smoking appliance may also include an impedance matching element 60. The impedance matching element 60 cooperates with the auxiliary medium 20 to form impedance matching for the transmission conductor 10. The transmission conductor 10 may be disposed between the impedance matching element 60 and the auxiliary medium 20.

[0142] For example, such as Figure 16 As shown, the shielding cavity 40 includes an auxiliary medium 20, a transmission conductor 10, an impedance matching element 60, and an electromagnetic shield 70. The auxiliary medium 20 can serve as a substrate for the transmission conductor 10 and is disposed on one side surface of the transmission conductor 10. The other side surface of the transmission conductor 10 is connected to a fixing element 80 and fixed within the electromagnetic shield 70 by the fixing element 80. The impedance matching element 60 can be disposed between the transmission conductor 10 and the electromagnetic shield 70, and the impedance matching element 60 and the auxiliary medium 20 cooperate to match the impedance of the transmission conductor 10. A non-combustible smoking appliance may include one or more shielding cavities 40. In the case where a non-combustible smoking appliance includes multiple shielding cavities 40, multiple tobacco products can be heated.

[0143] For example, one or more shielding covers 50 may be provided on the shielding cavity 40, and the material of the shielding cover 50 has good electrical conductivity. The shielding cover 50 may be magnetic, attracting the electromagnetic shield 70 magnetically, facilitating the closure of the shielding cavity 40. Furthermore, after being opened, the shielding cover 50 may be adhered to the electromagnetic shield 70.

[0144] For example, one or more openings are provided on the shielding cavity 40 or the shielding cover 50. The shape of the opening can be orifice-shaped, square, or irregular. The opening can serve as an air inlet or a smoke outlet. The maximum aperture of the opening is smaller than the wavelength of the microwave signal at the microwave feed port.

[0145] In the above embodiments, the input characteristic impedance value of the shielding cavity 40 with the shielding cover 50 closed can be a standard 25 ohms, 50 ohms, 75 ohms, 100 ohms, etc.

[0146] Based on any of the above embodiments, as an exemplary embodiment, such as... Figure 17 As shown, the transmission conductor 10 may further include a first end 11 and a second end 13. The first end 11 is connected to the microwave feed port, and the second end 13 is disposed inside the shielding cavity 40. The second end 13 and the shielding cavity 40 are either open-circuited or short-circuited. An open circuit means that the second end 13 and the shielding cavity 40 are not in direct contact, while a short circuit means that the second end 13 and the shielding cavity 40 are in direct contact.

[0147] For example, such as Figure 17 As shown, the transmission conductor 10 also includes a microwave transmission section 12. The microwave transmission section 12 is disposed within the shielding cavity 40, and the microwave transmission end may be in the shape of a helical spring.

[0148] like Figures 2 to 4 The schematic diagram of the microwave transmission section 12 shown can also be presented as follows: Figure 3 The zigzag shape shown. Alternatively, it can be formed by multiple bends, as shown. Figure 4 The harpoon-shaped or Figure 2 The hollow column shape shown. For example, as... Figure 4 As shown, the microwave transmission section of the transmission conductor forms a columnar structure with an internal cavity. This columnar structure can be formed around a central axis, and the internal cavity can accommodate the object to be heated or an auxiliary medium. Exemplarily, the microwave transmission section can form the sides of this columnar structure through multiple bends.

[0149] The transmission conductor 10 includes one or more bends or spiral shapes within the shielded cavity 40, which can increase the transmission path in a limited space and improve the heating speed and effect.

[0150] As an exemplary implementation, such as Figure 18 The diagram shows a non-combustion smoking device. The non-combustion smoking device in any of the above embodiments also includes a microwave generator 201. The microwave output terminal of the microwave generator 201 is connected to a microwave feed port. The number of microwave generators 201 and electronic cigarettes can each be one or more. The microwave generator 201 can include a semiconductor microwave generator or an electronic vacuum microwave generator.

[0151] For example, the microwave signal output by the microwave generator 201 can be a pulsed microwave or a continuous microwave. Pulsed microwaves are discontinuous waves, which can save power consumption in the heating process while maintaining temperature stability. The output characteristic impedance value of the microwave generator 201 can be a standard 25 ohms, 50 ohms, 75 ohms, 100 ohms, etc.

[0152] Exemplarily, the microwave generator 201 may further include a controller 202. The controller 202 can set one or more of the waveform, frequency, operating phase, power, and duty cycle of the microwave signal output by the microwave generator 201. For example, the controller 202 can set the microwave signal output by the microwave generator 201 to be a square wave, sine wave, or triangle wave, etc. The controller 202 can also set the microwave generator 201 to output a phase-modulated or frequency-modulated microwave signal. The free combination of various waveforms, frequencies, operating phases, power, and duty cycles can correspond to various operating modes. This application embodiment provides a microwave generator 201 with adjustable waveform, frequency, operating phase, power, and duty cycle, which can flexibly adjust the heating effect of the microwave transmission line.

[0153] For example, the non-combustion smoke appliance may also include a microwave signal amplifier 203. The microwave signal amplifier 203 may be positioned between the microwave generator 201 and the microwave feed terminal of the non-combustion smoke appliance. The microwave signal amplifier 203 is used to amplify the microwave signal. The output characteristic impedance values ​​of the microwave generator 201 and the microwave signal amplifier 203 may be standard 25 ohms, 50 ohms, 75 ohms, 100 ohms, etc.

[0154] For example, the non-combustion smoke appliance may also include a power supply 204, which is connected to the power supply port of the microwave generator 201 to provide power to the microwave generator 201. The power supply may be a DC power supply, including a battery, a DC-DC power supply, or an AC-DC power supply, etc. The power supply may also include boost, buck, or voltage regulation circuits, etc. The controller 202 in the non-combustion smoke appliance may also control the switching of the power supply, the output voltage, the output power, etc.

[0155] For example, the non-combustible smoke appliance may also include a sensor 205. For instance, the non-combustible smoke appliance may include a temperature sensor, which can be disposed within the shielding cavity 40 of the non-combustible smoke appliance, for real-time monitoring of the temperature within the microwave heating device and feeding it back to the controller 202, allowing the controller 202 to adjust various operating attributes of the non-combustible smoke appliance based on the real-time temperature. For instance, the non-combustible smoke appliance may include a power sensor for detecting the transmission power of the microwave generator 201 and feeding it back to the controller 202, allowing the controller 202 to adjust various operating attributes of the non-combustible smoke appliance based on the transmission power. These operating attributes may include the heating temperature or duration, the particle concentration that the generated smoke can contain, etc.

[0156] For example, the non-combustible smoke appliance may further include a network module 206, which records the status information and usage information of the non-combustible smoke appliance and sends the status information and usage information to a server via a network. The status information may include, for example, the temperature of the non-combustible smoke appliance or the output power of the microwave generator 201. The usage information may include, for example, the target heating temperature, heating time, heating duration, or heating mode. The network module 206 may be located inside or outside the microwave generator 201.

[0157] See Figure 19 This illustrates the actual structure of a non-combustion smoking device. The electronic cigarette also includes a housing 44 with a first opening 41, and a shielding cavity 40 formed inside the housing 44. The opening of the shielding cavity 40 is connected to the first opening 41. The opening of the shielding cavity 40 is flush with or slightly protrudes from the first opening 41, and the other end corresponding to the opening of the shielding cavity 40 is provided with a microwave feed port, which is connected to the microwave output terminal of a microwave generator. For example, as shown... Figure 19As shown in Figure 43, this is the connection point between the microwave feed port and the microwave output port of the microwave generator. The shielding cover 51 of the shielding cavity 40 can cover the opening of the shielding cavity 40, and at the same time cover the first opening 41 of the housing 44.

[0158] In some embodiments, the housing 44 may further include a microwave generator disposed inside the housing but outside the shielding cavity, and may be adjacent to the shielding cavity. The microwave output terminal of the microwave generator is connected to the microwave feed port.

[0159] For example, a filter (not shown in the figure) is provided in the shielding cover 51 of the first opening 41, which can filter large particles and improve user comfort. After use, the shielding cover 51 of the first opening 41 can be opened so that the shielding cover 51 is no longer covering the first opening 41. Then, the tobacco substrate 30 to be heated can be removed from the shielding cavity 40.

[0160] For example, this non-combustible smoking device may also have a second opening 42 in the housing 44, with the first opening 41 and the second opening 42 respectively located at opposite ends or sides of the housing 44. The shielding cavity 40 has two openings, which are respectively connected to the first opening 41 and the second opening 42 of the housing 44. The shielding cavity 40 extends from the first opening 41 through the housing 44 to the second opening 42. Alternatively, the shielding cavity 40 extends from the second opening 42 through the housing 44 to the first opening 41. The shielding cavity 40 has two shielding covers (51, 52), which respectively cover the two openings of the shielding cavity 40, and also cover the first opening 41 and the second opening 42. After removing the smoking substrate 30 to be heated, the shielding cover 52 of the second opening 42 can be opened to clean the inside of the shielding cavity 40. In some embodiments, the shielding cavity 40 can be cylindrical, i.e. hollow columnar. The inner surface of the shielding cavity 40 is provided with an auxiliary medium 20 for isolating the transmission conductor 10 and the smoke substrate 30 to be heated. The auxiliary medium 20 is evenly distributed on the inner surface of the shielding cavity 40, making the inner surface of the shielding cavity 40 smooth and facilitating the cleaning of residual substances from the smoke substrate 30 to be heated.

[0161] See Figure 20 , Figure 20The diagram illustrates the structure of a tobacco product for a non-combustible smoking device. The tobacco product 30 includes a tobacco product body 31 (the tobacco product substrate to be heated) and a gas cooling chamber 32. A first end of the gas cooling chamber 32 is connected to the tobacco product substrate 31, and a metal film 321 covers the end face of the second end of the gas cooling chamber 32. The metal film 321 has holes 322, the diameter of which is smaller than the wavelength of the microwave signal input to the microwave feed port. The tobacco product 30 is placed within a shielding cavity 40 of the non-combustible smoking device, and the shape of the tobacco product 30 matches the shape of the chamber of the shielding cavity 40. For example, the shielding cavity 40 may be a hollow column, and the tobacco product 30 may be cylindrical, with a cross-sectional diameter smaller than the inner cross-sectional diameter of the shielding cavity 40. The end face of the second end of the gas cooling chamber 32 is aligned with or slightly protrudes from the opening of the shielding chamber 40. The outer surface of the gas cooling chamber 32 can contact the opening of the shielding chamber 40 or the inner wall surface of the shielding chamber 40. For example, the outer surface of the gas cooling chamber 32 can be fitted to the opening of the shielding chamber 40 or the inner wall surface of the shielding chamber 40. The metal film 321 can be equivalent to the aforementioned shielding cover, which can significantly reduce electromagnetic wave leakage while allowing air to pass through.

[0162] In some embodiments, the metal film 321 extends to the outer surface of the gas cooling cavity 32, forming a metal contact surface 323. The metal contact surface 323 can be a stepped contact surface or a plane, and can completely or partially cover the outer surface of the gas cooling cavity 32. The metal contact surface 323 contacts the opening of the shielding cavity 40 or the inner wall surface of the shielding cavity 40. This is beneficial because when the smoke substrate 31 to be heated is placed in the shielding cavity 40, the metal contact surface contacts the shielding cavity to form a better shielding effect, significantly reducing electromagnetic wave leakage.

[0163] In some embodiments, the tobacco product 30 further includes a filter 34, which is connected to the second end of the gas cooling chamber 32. The filter 34 can be fitted into the filter 34, either partially or completely, to filter particulate matter in the gas passing through the gas cooling chamber 32, thereby improving user comfort.

[0164] In some embodiments, the outer surface of the filter tip 34 may also be covered with a metal layer. The metal layer may cover all or part of the outer surface of the filter tip 34. However, the metal layer shall at least cover the connection edge between the filter tip 34 and the gas cooling chamber 32. The metal layer may be in contact with the metal contact surface 323 or the metal film 321 on the surface of the gas cooling chamber 32, or it may be integrally formed with the metal contact surface 323 or the metal film 321 on the surface of the gas cooling chamber 32.

[0165] Application Example 4

[0166] The energy absorption device provided in this application embodiment can also improve energy utilization efficiency through power control.

[0167] As an exemplary implementation, Figure 21 A flowchart illustrating an embodiment of the microwave output control method is shown below, including steps S100 and S200:

[0168] S100, Obtain the operating state of the microwave heating. The operating state may include the state of the object to be heated and the state of the microwave transmission line heating the object. The object to be heated is part of the microwave transmission line. In some embodiments, the microwave transmission line is disposed within a shielded cavity. This shielded cavity may be semi-enclosed, with a shielding cover provided at the opening of the shielded cavity to close the opening. The object to be heated can be placed inside the shielded cavity through the opening, forming an integral part with the microwave transmission line. Of course, this shielded cavity may be fully enclosed. The loss tangent of the object to be heated is greater than the loss tangent of the portion of the microwave transmission line in contact with the object. Because the loss tangent of the object to be heated is greater than the loss tangent of the portion of the microwave transmission line in contact with it, more energy is lost on the object with the higher loss tangent, thus achieving heating of the object by the microwave transmission line.

[0169] For example, the state of the object to be heated may include its temperature, shape, positional relationship with the microwave transmission line, and the material composition of the object. The state of the microwave transmission line may include its temperature and reflected power.

[0170] S200: Based on the acquired operating status, determine the operating parameters of the microwave generator output microwave signal; wherein, the microwave generator is connected to the microwave transmission line.

[0171] Operating parameters may include the output frequency, output power, phase, and output waveform of the microwave signal. The output waveform may include pulse waveforms, continuous waves, sawtooth waves, etc. The microwave generator may include multiple microwave output ports, and the microwave transmission line may also include multiple microwave feed ports. Each microwave feed port of the microwave transmission line is connected to a microwave output port. In this way, the microwave generator can output multiple microwave signals to the microwave transmission line to heat the object to be heated.

[0172] Therefore, operating parameters may also include controlling whether each microwave output port outputs or not.

[0173] In the embodiments of this application, the control of microwave output can be adjusted in real time based on the state feedback from microwave heating, which can effectively improve the energy efficiency ratio of microwave heating.

[0174] In some embodiments, the microwave generator can also be connected to a microwave transmission line via a microwave power amplifier. The microwave power amplifier is configured for gain and gate voltage adjustment. For example... Figure 22As shown, the microwave control method provided in this embodiment may further include step S300, as follows:

[0175] S300 determines the operating parameters of the microwave power amplifier for amplifying microwave signals based on the acquired operating status. The operating parameters of the microwave power amplifier may include at least one of gain and gate voltage.

[0176] In some embodiments, based on the acquired operating status, the operating parameters of both the microwave generator and the microwave power amplifier can be adjusted simultaneously, or only one of them can be adjusted. Adjusting the microwave power amplifier in conjunction with adjusting the output power of the microwave generator ensures that the microwave power amplifier operates at a high-power, high-efficiency operating point, while also protecting it from damage due to excessive input power. In some embodiments, controlling the output waveform of the microwave generator can be coordinated with adjusting the gate voltage of the microwave power amplifier, minimizing the power dissipation of the microwave power amplifier during periods when the microwave generator has no output.

[0177] For example, examples of the two types of coordinated regulation mentioned above can be as follows:

[0178] In some embodiments, the microwave generator can scan at specific frequency steps, which can significantly improve the uniformity of microwave heating. Simultaneously, by continuously adjusting the microwave output and heating through frequency steps, the relatively optimal or best energy feed point, i.e., the output frequency, can be found by utilizing feedback status information. For example... Figure 23 As shown, the process of controlling the output frequency of the microwave generator provided in this embodiment may include steps S110, S120 and S210, as follows:

[0179] S110 sets the output frequency of the microwave generator within a set frequency range and at set frequency intervals. For example, the set frequency range can be 300Hz~400Hz, with a frequency interval of 10Hz. The microwave generator can start at 300Hz and increase the frequency value every 10Hz, so that the microwave generator outputs microwave signals with frequencies of 300Hz, 310Hz, 320Hz, 330Hz, ..., 400Hz. The microwave transmission line continuously generates losses under the excitation of the microwave signal, achieving a uniform heating effect.

[0180] S120: Obtain the operating status of microwave heating at each output frequency.

[0181] S210 determines the output frequency of the microwave generator based on the operating status of each output frequency.

[0182] In the embodiments of this application, when the microwave generator outputs microwave signals of corresponding frequencies in steps at certain frequency intervals, the feedback power of the microwave transmission at each output frequency can be obtained. Based on the changes in the feedback power, the range or a certain value of the output frequency of the microwave generator can be determined, which can ensure that the energy fed into the microwave generator achieves better utilization efficiency.

[0183] In some embodiments, the temperature change of the object to be heated and the change of the substance produced by the object to be heated at each output frequency can be obtained to determine the range or a certain value of the output frequency of the microwave generator, and can also ensure that the feed capability of the microwave generator achieves better utilization efficiency.

[0184] In some embodiments, during the microwave heating process using a step-set microwave generator, the presence of the object to be heated in the microwave transmission line can be determined by the change in reflected power.

[0185] For example, see Figure 24 , Figure 24 The control process for whether or not a microwave generator outputs is shown, including steps S410 to S440, as follows:

[0186] S410, obtains the reflected power of the microwave transmission line that performs microwave heating at each output frequency.

[0187] S420, determine whether the reflected power is less than the first reflected power threshold.

[0188] S430, if the reflected power is greater than the first reflected power threshold, the output of the microwave generator is turned off.

[0189] S440, if the reflected power is less than the first reflected power threshold, maintain the output of the microwave generator.

[0190] In this embodiment, a first reflected power threshold is used to determine whether an object to be heated exists. Its value range is related to the loss tangent of the object and the transmission line in contact with it. A smaller loss tangent results in greater reflected power, while the loss tangent of the object is typically large, leading to less reflected power. Therefore, this embodiment sets a reflected power threshold, i.e., a first reflected power threshold. If the reflected power is greater than the first reflected power threshold, it indicates that the object to be heated does not exist, and the output of the microwave generator can be turned off.

[0191] Typically, the first reflection power threshold is less than the rated output power of the microwave generator. For example, if the rated output power is 40 dBm, the first reflection power threshold can be set to 34 dBm or less.

[0192] Typically, the first reflected power threshold can be determined based on the loss tangent between the loss tangent of the object to be heated and the loss tangent of the transmission line in contact with the object. For example, when the object to be heated is not connected to the microwave transmission line, the reflected power is 36 dBm; when the object to be heated is connected to the microwave transmission line, the reflected power is 20 dBm; in this case, the value of the first reflected power threshold can be between 20 and 36 dBm.

[0193] In some embodiments, if the reflected power is less than a first reflected power threshold, it indicates the presence of an object to be heated, and the output of the microwave generator can be maintained. Simultaneously, the output frequency of the microwave generator can be adjusted to improve the energy efficiency of microwave heating. Specifically, the output frequency of the microwave generator can be adjusted as follows:

[0194] First, select the reflected power within a set range from the acquired reflected power. This set range can be one or more reflected powers selected in a sorted order, such as the minimum reflected power. Alternatively, this set range can be an interval with an upper and lower limit.

[0195] Then, it is determined whether the reflected power within this set range is less than the second reflected power threshold. For example, it is determined whether the minimum reflected power is less than the second reflected power threshold.

[0196] At this point, if the reflected power within the set range is less than the second reflected power threshold, the output frequency of the microwave generator is set according to the output frequency corresponding to the reflected power within the set range. For example, the output frequency corresponding to the minimum reflected power within this set range can be selected as the output power of the microwave generator.

[0197] Furthermore, if the reflected power within the set range exceeds the second reflected power threshold, the frequency interval is reduced. Using this frequency interval, the output frequency of the microwave generator is continued to be set, and the corresponding reflected power is obtained. This process is repeated until the reflected power within the set range is less than the second reflected power threshold.

[0198] In some embodiments, during the microwave heating process of a step-set microwave generator, the frequency range in which the microwave generator operates can be determined.

[0199] For example, see Figure 25 , Figure 25 The control process for the output frequency range of a microwave generator is shown below, including steps S510 to S530:

[0200] S510, obtains the reflected power of the microwave transmission line that performs microwave heating at each output frequency.

[0201] S520 determines the range of output frequencies of the microwave generator when the reflected power of the microwave transmission line is below a second reflected power threshold. Generally, the second reflected power threshold is smaller than the first reflected power threshold.

[0202] S530, keeps the output frequency of the microwave generator within a defined range.

[0203] In this embodiment, the second reflection power threshold is used to determine the operating state of the power source. Output frequencies with reflection power lower than the second reflection power threshold are beneficial for microwave energy feeding, i.e., effective heating. Using the second reflection power threshold as a boundary, any output frequency with reflection power lower than the second reflection power threshold can be used as the operating frequency of the microwave generator. Naturally, the lower the reflection power, the more beneficial the output frequency is for microwave signal energy feeding, i.e., heating. The value of the second reflection power threshold is within a certain range, and this range is related to the rated output power of the microwave generator. For example, when the rated output power is 40dBm, the second reflection power threshold can be set to 30dBm or lower.

[0204] During microwave heating, the reflected power of the microwave transmission line may experience frequency shifts. For example, with an output power of F and an operating frequency of F for the microwave transmission line, at time t1, the reflected power of the microwave transmission line may be less than the second reflected power threshold, but at time t2, the reflected power may be at the second reflected power threshold. However, we need to ensure that the microwave generator continues to operate with the reflected power always below the second reflected power threshold. This requires the embodiments of this application to automatically track the output power and operate at the minimum output power when the reflected power is below the second reflected power threshold, thus achieving optimization.

[0205] For example, using the current output power *f* as a reference, three output powers are generated in 1MHz increments, such as: *f-2*, *f-1*, *f*; or *f-1*, *f*, *f+1*; or *f*, *f+1*, *f+2*. Then, the microwave generator sequentially outputs the corresponding microwave signal to the microwave transmission line according to the generated output power and obtains the reflected power at each output power. The output power corresponding to the minimum reflected power is selected as the current output power of the microwave generator. After the microwave generator operates at the selected output power for 2 seconds, the above operation is repeated. It should be noted that the above increments are not limited to 1MHz; they can also be 2MHz, 3MHz, etc. The continuous operating time is not limited to 2 seconds; it can be 4 seconds, 5 seconds, etc. This is merely an example for convenience.

[0206] In some embodiments, the operating state includes at least one of the following: the amount of gas generated by the object to be heated, the temperature of the object to be heated, the temperature of the microwave transmission line, and the duration of microwave heating; the determination process includes:

[0207] Determine whether the working status has reached the corresponding threshold.

[0208] If the operating state reaches the corresponding threshold, the output waveform of the microwave generator is determined.

[0209] For example, if the heating time of the object to be heated reaches a preset time threshold, the output waveform of the microwave generator can be dynamically adjusted. Alternatively, the gain or gate voltage of the microwave power amplifier can be adjusted so that the output power of the microwave signal input to the microwave transmission line can meet the heating requirements. If the amount of gas generated by the object to be heated reaches a preset gas content threshold, the output waveform of the microwave generator can also be adjusted. For example, the continuous wave microwave signal can be changed to a pulsed microwave signal. Another example is adjusting the duty cycle of the pulsed microwave signal. Alternatively, if the temperature of the object to be heated reaches a preset temperature threshold, the output waveform of the microwave generator can be adjusted. Furthermore, if the temperature of the microwave transmission line reaches a preset temperature threshold, the output waveform of the microwave generator can also be adjusted.

[0210] In some embodiments, the microwave generator may include multiple microwave output ports. The microwave transmission line may include multiple microwave feed ports, each connected to a microwave output port for receiving multiple microwave signals. The operating state may include the properties of the object to be heated and the positional relationship between each microwave feed port and the object. The properties of the object to be heated may include its shape, size, type, etc. The positional relationship may include distance, angle, etc. When the various microwave signals are transmitted to the object to be heated, they can be combined into a single microwave signal to improve the microwave energy feed efficiency.

[0211] For example, step S200 may include: determining the output phase of each microwave signal fed into each microwave feed port by the microwave generator, based on the properties of the object to be heated and the positional relationship between each microwave feed port and the object to be heated. For example, assuming there are four microwave feed ports, based on the positional relationship between each microwave feed port and the object to be heated, and the shape of the object to be heated, the output phases of each microwave signal fed into each microwave feed port are determined to be 15 degrees, 45 degrees, 75 degrees, and 90 degrees, respectively. When these microwave signals with different phases are transmitted to the object to be heated, they can be combined into a single microwave signal to heat the object.

[0212] See Figure 26 , Figure 26This illustration shows the structure of a microwave heating device provided in an embodiment of this application. The microwave heating device includes a microwave generator 1, a microwave power amplifier 2, a control unit 4, and a microwave transmission line 3. The microwave transmission line 3 includes a shielded cavity, within which an object 6 to be heated can be placed and forms part of the microwave transmission line 3. The object 6 to be heated can include solid or liquid substances, such as tobacco, ashtrays, or aromatherapy oils. The microwave output port of the microwave generator is connected to the microwave feed port of the microwave transmission line. The microwave output port and the microwave feed port can use a standard 50Ω impedance or a non-standard impedance.

[0213] Control unit 4 controls microwave generator 1 to generate microwave signals. Microwave generator 1 transmits the generated microwave signals to microwave power amplifier 2. Microwave power amplifier 2 amplifies the received microwave signals and feeds them into microwave transmission line 3. Excited by the microwave signals, microwave transmission line 3 generates heat through self-dissipation, thereby heating the object 6 to be heated. Simultaneously, control unit 4 acquires the state of the object 6 to be heated or the state of microwave transmission line 3, and adaptively adjusts the operating parameters of microwave generator 1 or microwave power amplifier 2 according to the acquired state, so that the power of the microwave signal fed into microwave transmission line 3 meets the heating requirements. For example, if the object 6 to be heated is a gaseous substrate, the required amount of vapor produced by heating must be met.

[0214] For example, the control unit 4 monitors the temperature of the microwave transmission line 3 in real time. When the temperature of the microwave transmission line 3 reaches a certain preset value, the control unit 4 will initiate corresponding operations. For example, changing the output waveform of the microwave generator 1, changing the gain of the microwave power amplifier 2, etc. This ensures that the microwave transmission line 3 will not become unusable or even damaged due to excessive temperature.

[0215] For example, the control unit 4 monitors the reflected power of the microwave transmission line 3 in real time and directly or indirectly determines the conditions for the microwave generator 1 and microwave power amplifier 2 to be turned on or off, the output frequency range of energy input, etc.

[0216] For example, the control unit 4 monitors the temperature and aerosol generation of the gaseous substrate in real time. The microwave transmission line 3 continuously heats the gaseous substrate, and when a certain temperature range is reached, for example, 280℃±5℃, the aerosol generation reaches an optimal state. At this time, the control unit 4 can adaptively adjust the operating parameters of the microwave generator 1 and the microwave power amplifier, so that the temperature of the gaseous substrate tends to be constant and the aerosol generation is maintained at an optimal state.

[0217] Based on the above embodiments, the output frequency adaptive control process of this application embodiment can be as follows:

[0218] The first step involves step-by-step microwave feeding and determining whether the microwave generator is on or off. The microwave generator feeds microwaves into the microwave transmission line at a set frequency. During feeding, the control unit detects the reflected power from the microwave transmission line back to the microwave generator. The control unit determines whether the reflected power is less than a first reflected power threshold. If the reflected power is less than the first reflected power threshold, the output of the microwave generator is maintained. If the reflected power is greater than the first reflected power threshold, it indicates that the object to be heated does not exist, and the output of the microwave generator needs to be turned off.

[0219] The second step is to determine the range of the microwave generator's output frequency. The control unit compares the reflected power corresponding to each output power and determines the range of output power corresponding to reflected power less than a second reflected power threshold. It then controls the output power of the microwave signal from the microwave generator to fall within this determined range.

[0220] The third step is to dynamically adjust the output frequency of the microwave generator. The reflected power from the microwave transmission line is monitored in real time. Through preset steps, the output frequency of the microwave generator is dynamically adjusted at regular intervals to ensure that the reflected power value of the microwave transmission line remains below the second reflected power threshold.

[0221] For example, see Figure 27 It illustrates a flow of output frequency adaptive control according to an embodiment of this application, including the following steps:

[0222] S610 sets the output frequency of the microwave generator in steps according to a preset frequency.

[0223] S620, determine whether the reflected power fed back from the microwave transmission line at each output frequency is less than the first reflected power threshold P0.

[0224] S630, if not, shut down the output of the microwave generator.

[0225] S640, if so, then extract the output frequency with the minimum reflected power from each output frequency.

[0226] S650, determine whether the reflected power corresponding to the extracted output frequency is less than the second reflected power threshold P1.

[0227] S660, if not, starting from the extracted output frequency, reduce the frequency step and repeat the aforementioned steps S610 to S650 until the reflex power corresponding to the extracted output frequency is less than the second reflection power threshold, and then execute step S670.

[0228] S670, if so, use the extracted output frequency as the output frequency of the microwave generator. And at certain time intervals, starting from the extracted output frequency, repeat the aforementioned steps S610 to S650.

[0229] Through the above adaptive operation, it can be ensured that when microwaves are fed in at the output power of the microwave generator, the reflected power of the microwave transmission line is less than the second reflected power threshold, and the output power is the minimum value within the range of output power corresponding to the reflected power being less than the second reflected power threshold.

[0230] See Figure 28 The following illustrates the power adaptive control flow of an embodiment of this application:

[0231] S710 starts timing when the microwave generator starts working.

[0232] S720 determines whether the heating time has reached the preset time, whether the temperature of the gaseous material generating substrate has reached the preset temperature, whether the temperature of the microwave transmission line has reached the preset temperature, and whether the amount of mist generated by the gaseous material generating substrate has reached the preset amount of mist.

[0233] S730, if one or more of the above four conditions are met, adjust the output waveform of the microwave generator to pulsed microwave, synchronously control the gate voltage of the microwave power amplifier, and dynamically adjust the duty cycle of the pulsed microwave so that the power fed into the microwave transmission line meets the actual power requirements for generating the required amount of mist.

[0234] Figures 29 to 32 The structures of the microwave heating devices according to embodiments of this application are shown below. The structures of each microwave heating device will be described below:

[0235] See Figure 29 The microwave heating device comprises a microwave generator 1, a microwave power amplifier 2, and a control unit 4. The microwave power amplifier includes a gain adjustment circuit 201, a gate voltage bias 202, a cascaded microwave power amplifier tube 203, an output matching circuit 204, a circulator 205, a detector circuit 206, and an absorption load 207. The aerosol generating substrate typically exhibits good bandwidth response and good microwave absorption capability at a lower impedance than 50Ω, such as 35Ω. Therefore, the output matching circuit 204 is matched to an impedance of 35Ω, and the port impedance of the circulator 205 is designed to be 35Ω. This makes it easier for the aerosol generating substrate 6 to absorb microwave energy, while also reducing the loss of the microwave power source and adapting to the manufacturing size of smaller products.

[0236] See Figure 30The microwave heating device includes a microwave generator 1, a microwave power amplifier 2, and a control unit 4. The microwave power amplifier 2 may include a gain adjustment circuit 201, a gate voltage bias 202, a cascaded microwave power amplifier tube 203, an output matching circuit 204, a circulator 205, a detector circuit 206, and an absorption load 207. Therefore, the output matching circuit 204 can be matched to an impedance of 35Ω, and the port impedance of the circulator 205 can also be designed to be 35Ω. This makes it easier for the aerosol generating substrate 6 to absorb microwave energy, while also reducing the loss of the microwave power source and adapting to the manufacturing size of smaller products.

[0237] See Figure 31 The microwave heating device may include a microwave generator 1, a microwave power amplifier 2, and a control unit 4. The microwave power amplifier 2 may include a gain adjustment circuit 201, a gate voltage bias 202, a cascaded microwave power amplifier tube 203, an output matching circuit 204, an isolator 208, and a detection circuit 206. Therefore, the output matching circuit 204 can be matched to 35Ω, and the port impedance of the isolator 208 can be designed to be 35Ω. This makes it easier for the aerosol generating substrate 6 to absorb microwave energy, while also reducing the loss of the microwave power source and adapting to the manufacturing size of smaller products.

[0238] See Figure 32 The microwave heating device may include a microwave generator 1, a microwave power amplifier 2, and a control unit 4. The microwave power amplifier 2 may include a gain adjustment circuit 201, a gate voltage bias 202, a cascaded microwave power amplifier tube 203, an output matching circuit 204, and a detection circuit 206. When the aerosol generating substrate 6 exhibits good characteristic impedance at 50Ω and is unaffected by ambient temperature, adopting this solution can significantly improve the operating efficiency of the microwave power source, reduce circuit size, and decrease product manufacturing costs.

[0239] As an example of an embodiment of this application, Figure 33 An embodiment of this application illustrates a microwave output control device, comprising:

[0240] The working status acquisition module 100 is used to acquire the working status of microwave heating; the working status includes the status of the object to be heated and the status of the microwave transmission line that heats the object to be heated; the object to be heated constitutes a part of the microwave transmission line.

[0241] The first parameter determination module 200 is used to determine the operating parameters of the microwave generator output microwave signal according to the operating state; wherein the microwave generator is connected to the microwave transmission line.

[0242] In some embodiments, the apparatus further includes:

[0243] The second parameter determination module 300 is used to determine the operating parameters of the microwave power amplifier for amplifying the microwave signal based on the operating state.

[0244] In some embodiments, the operating parameters include the output frequency of the microwave generator, and the operating status acquisition module 100 includes:

[0245] The frequency setting unit is used to set the output frequency of the microwave generator within a set frequency range and at set frequency intervals.

[0246] A status acquisition unit is used to acquire the operating status of microwave heating at each of the output frequencies; and

[0247] The first parameter determination module 200 includes:

[0248] The output frequency determination unit is used to determine the output frequency of the microwave generator based on the operating status of each output frequency.

[0249] In some embodiments, the state acquisition unit is used to acquire the reflected power of the microwave transmission line being microwave heated at each of the output frequencies.

[0250] In some embodiments, the first parameter determination module 200 includes:

[0251] A reflection power determination unit is used to determine whether the reflection power is less than a first reflection power threshold.

[0252] The output shutdown unit is used to shut down the output of the microwave generator if the reflected power is greater than the first reflected power threshold.

[0253] A holding output unit is configured to hold the output of the microwave generator if the reflected power is less than the first reflected power threshold.

[0254] In some embodiments, the first parameter determination module 200 includes:

[0255] A frequency range determination unit is used to determine the range of the output frequency of the microwave generator when the reflected power of the microwave transmission line is lower than a second reflected power threshold.

[0256] A frequency-maintaining unit is used to keep the output frequency of the microwave generator within the range.

[0257] In some embodiments, the operating state includes at least one of the following: the amount of gas generated by the object to be heated, the temperature of the object to be heated, the temperature of the microwave transmission line, and the duration of microwave heating. The first parameter determination module 200 includes:

[0258] A status determination unit is used to determine whether the working state has reached the threshold corresponding to the working state;

[0259] An output waveform determination unit is used to determine the output waveform of the microwave generator if the operating state reaches the threshold corresponding to the operating state.

[0260] In some embodiments, the microwave generator includes multiple microwave output ports, the microwave transmission line includes multiple microwave feed ports, and each microwave feed port is connected to one of the microwave output ports; the operating state includes the properties of the object to be heated and the positional relationship between each microwave feed port and the object to be heated, and the first parameter determination module 200 includes:

[0261] The phase determination unit is used to determine the output phase of each microwave signal fed into each microwave feed port by the microwave generator based on the properties of the object to be heated and the positional relationship between each microwave feed port and the object to be heated.

[0262] In some embodiments, the operating parameters of the microwave power amplifier include at least one of gain and gate voltage.

[0263] The functions of the device can be implemented in hardware or by executing corresponding software within the hardware. The hardware or software includes one or more modules corresponding to the functions described above.

[0264] As an example of an embodiment of this application, this application provides a design in which the structure of a microwave output control includes a processor and a memory. The memory is used by the microwave output control device to execute a program corresponding to the microwave output control method described above, and the processor is configured to execute the program stored in the memory. The microwave output control device also includes a communication interface for communication with other devices or communication networks.

[0265] The device also includes:

[0266] Communication interface 23 is used for communication between processor 22 and external devices.

[0267] The memory 21 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage.

[0268] If the memory 21, processor 22, and communication interface 23 are implemented independently, they can be interconnected via a bus to communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Component (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 34 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0269] Optionally, in a specific implementation, if the memory 21, processor 22 and communication interface 23 are integrated on a single chip, the memory 21, processor 22 and communication interface 23 can communicate with each other through an internal interface.

[0270] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0271] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-including system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device.

[0272] The computer-readable medium in embodiments of this application may be a computer-readable signal medium, a computer-readable storage medium, or any combination thereof. More specific examples of computer-readable storage media include, at least (in a non-exhaustive list), the following: an electrical connection (electronic device) having one or more wirings, a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), an optical fiber device, and a portable read-only memory (CDROM). Furthermore, the computer-readable storage medium may even be paper or other suitable media on which programs can be printed, because programs can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0273] In this embodiment, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. This propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, input method, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wireline, optical fiber, radio frequency (RF), etc., or any suitable combination thereof.

[0274] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0275] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0276] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0277] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0278] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0279] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0280] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0281] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0282] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An energy absorption device, characterized in that, The system includes a microwave transmission line comprising a transmission conductor, a first energy-absorbing medium, and a transmission ground. The transmission ground is arranged around the transmission conductor to form a shielding shell, and the first energy-absorbing medium and the transmission conductor are disposed within the shielding shell. The transmission conductor includes a first end that penetrates the shielding shell. The shielding shell is provided with a first through-hole and a second through-hole. The first through-hole is used to dissipate gaseous substances to the outside of the shielding shell, and the second through-hole serves as an air inlet to balance the air pressure inside and outside the shielding shell. The diameters of both the first and second through-holes are smaller than the wavelength of the microwave signal input to the microwave feed port. The first energy-absorbing medium is used to absorb the energy of the microwave signal when a microwave signal is fed into the first end of the transmission conductor; The first energy-absorbing medium absorbs energy in the form of dielectric loss. The first energy-absorbing medium includes the object to be heated placed inside the shielding shell; the microwave transmission line further includes an auxiliary medium, which includes an electrical medium and / or a magnetic medium, and the transmission conductor includes a conductor; the loss tangent of the first energy-absorbing medium is greater than the loss tangent of the auxiliary medium; The operating state of the target position in the first energy absorption medium is used to determine the operating parameters of the microwave signal output by the microwave generator; the microwave output port of the microwave generator is connected to the first end.

2. The energy absorption device according to claim 1, characterized in that, The transmission conductor includes a microwave transmission segment that surrounds a columnar structure having an internal cavity.

3. The energy absorption device according to claim 2, characterized in that, The microwave transmission section forms the side of the columnar structure through multiple bends.

4. The energy absorption device according to claim 1, characterized in that, The transmission conductor includes a microwave transmission section, which is in the shape of a helical spring.

5. The energy absorption device according to claim 1, characterized in that, The shielding shell is a hollow cylinder, sphere, frustum, cuboid, or cone.

6. An energy absorption method, characterized in that, The method, applied to the energy absorption device as described in any one of claims 1 to 5, comprises: The working status of the target position in the first energy absorption medium is obtained; Based on the working status of the target location, the working parameters of the microwave signal output by the microwave generator are determined; the microwave output port of the microwave generator is connected to the first end of the microwave transmission line in the energy absorption device.

7. The energy absorption method according to claim 6, characterized in that, The operational status of the target location in the first energy absorption medium is obtained, including: Within the set operating parameter range, determine the operating parameters of the microwave signal output by the microwave generator according to the set step value; Based on the operating status of the target location, determine the operating parameters of the microwave signal output by the microwave generator, including: Based on the working state of the first energy absorbing medium, determine whether the energy absorbed at the target location is higher than the energy absorbed at multiple non-target locations of the first energy absorbing medium; If the energy absorbed at the target location is higher than the energy absorbed at multiple non-target locations of the first energy absorbing medium, then the operating parameters of the microwave signal output by the microwave generator are determined.

8. The energy absorption method according to claim 7, characterized in that, Before acquiring the working state of the target location in the first energy absorption medium, the following steps are also included: Set the target location.

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