Microwave heating non-combustible smoking set and temperature measuring device thereof

Abstract

The application discloses a microwave heating non-combustible smoking set and a temperature measuring device thereof, and the temperature measuring device comprises a microwave energy source, a microwave transducer, a power module, a microwave suppression module, a sampling module and a controller; the microwave transducer is used for converting microwave energy signals output by the microwave energy source into heat energy to heat cigarettes in the microwave heating non-combustible smoking set; the microwave suppression module is used for outputting low-frequency direct current output by the power module to the microwave transducer; the sampling module is used for sampling voltage signals of the microwave transducer at different heating temperatures and converting the voltage signals into digital signals; the microwave suppression module is further used for inhibiting the conduction of the microwave energy signals to the sampling module; and the controller is used for obtaining the heating temperature corresponding to the microwave transducer according to the digital signals. The temperature measuring device integrates the power module and the microwave transducer to realize temperature measurement, can make the overall structure of the microwave heating non-combustible smoking set more compact, and is favorable to the overall miniaturization design.

Description

Technical Field

[0001] This application relates to the field of electronic technology, specifically to a microwave-heated non-combustible smoke appliance and its temperature measuring device. Background Technology

[0002] Microwave-heated non-combustible cigarettes are a new type of tobacco product that has emerged in recent years. They utilize a microwave energy source, converting microwave energy into a microwave energy field within a resonant cavity via a microwave converter. Taking advantage of the penetrating power of microwaves, this energy is directed onto the tobacco within the resonant cavity. The periodicity of the microwave energy signal causes the polar molecules in the tobacco to periodically flip, following the microwave energy field. Friction between these polar molecules and other non-polar molecules converts the microwave energy into heat. When the tobacco temperature rises to a certain level, the high temperature accelerates the volatilization and release of aromatic compounds and active ingredients, producing smoke when inhaled, thus enabling the smoking of cigarettes.

[0003] Microwave heating of tobacco products using non-combustible smoking devices can significantly reduce the release of harmful components from tobacco. However, to optimize the heating process and ensure the temperature remains within a safe range, monitoring the cigarette heating temperature is necessary. Currently, microwave-heated smoking devices require separate temperature sensors, increasing the complexity of the structural design.

[0004] Therefore, the technology still needs to be improved and enhanced. Utility Model Content

[0005] This application provides a microwave-heated non-combustible smoke appliance and its temperature measuring device, which can effectively alleviate the technical problem that the current microwave-heated smoke appliances have increased structural design complexity due to the separate setting of temperature sensors.

[0006] This application provides a temperature measuring device for microwave-heated non-combustible smoke appliances, the temperature measuring device comprising:

[0007] A microwave energy source is used to output microwave energy signals.

[0008] A microwave transducer is connected to a microwave energy source and is used to convert microwave energy signals into heat energy to heat cigarettes in microwave-heated non-combustible smoking devices.

[0009] The power module is used to output low-frequency DC power.

[0010] The microwave suppression module is connected to both the power supply module and the microwave transducer; the microwave suppression module is used to output low-frequency DC power to the microwave transducer.

[0011] The sampling module is connected to the microwave suppression module. The sampling module is used to sample the voltage signal of the microwave transducer at different heating temperatures and convert the voltage signal into a digital signal. The microwave suppression module is also used to suppress the transmission of microwave energy signal to the sampling module.

[0012] The controller is connected to the sampling module; the controller is used to obtain the heating temperature corresponding to the microwave transducer based on the digital signal.

[0013] In some embodiments of the temperature measuring device for microwave-heated non-combustible smoke appliances, the microwave suppression module includes a filtering unit, which is connected to the power supply module and the microwave transducer respectively; the filtering unit is used to filter the microwave energy signal.

[0014] In some embodiments of the temperature measuring device for microwave-heated non-combustible smoke appliances, the filtering unit includes a first resistor, a first capacitor, and a second capacitor. One end of the first resistor is connected to a power supply module, and the other end of the first resistor is connected to a microwave transducer. One end of the first capacitor is connected to one end of the first resistor, and the other end of the first capacitor is grounded. One end of the second capacitor is connected to the other end of the first resistor, and the other end of the second capacitor is grounded. The other end of the first resistor is also connected to a sampling module and a microwave transducer.

[0015] In some embodiments of the temperature measuring device for microwave-heated non-combustible smoke appliances, the filtering unit includes a first inductor, a third capacitor, and a fourth capacitor; one end of the first inductor is connected to the power supply module, and the other end of the first inductor is connected to the microwave transducer; one end of the third capacitor is connected to one end of the first inductor, and the other end of the third capacitor is grounded; one end of the fourth capacitor is connected to the other end of the first inductor, and the other end of the fourth capacitor is grounded; the other end of the first inductor is also connected to the sampling module and the microwave transducer.

[0016] In some embodiments of the temperature measuring device for microwave-heated non-combustible smoke appliances, the microwave suppression module includes a microstrip line with a length of one-quarter wavelength; one end of the microstrip line is connected to a power supply module, and the other end of the microstrip line is connected to a microwave transducer; the other end of the microstrip line is also connected to a sampling module.

[0017] This application embodiment also provides a temperature measuring device for microwave-heated non-combustible smoke appliances, the temperature measuring device comprising:

[0018] A microwave energy source is used to output microwave energy signals.

[0019] Microwave transducers are used to convert microwave energy signals into heat energy to heat cigarettes in microwave-heated non-combustible smoking devices.

[0020] The power module is used to output low-frequency DC power.

[0021] The microwave suppression module is connected to the microwave energy source, the power supply module, and the microwave transducer. The microwave suppression module is used to output low-frequency DC power to the microwave transducer and to output microwave energy signals to the microwave transducer.

[0022] The sampling module is connected to the microwave suppression module. The sampling module is used to sample the voltage signal of the microwave transducer at different heating temperatures and convert the voltage signal into a digital signal. The microwave suppression module is also used to suppress the transmission of microwave energy signal to the sampling module.

[0023] The controller is connected to the sampling module and is used to obtain the heating temperature corresponding to the microwave transducer based on the digital signal.

[0024] In some embodiments of the temperature measuring device for microwave-heated non-combustible smoke appliances, the microwave suppression module includes a choke bias unit, which is connected to a microwave energy source, a power supply module, and a microwave transducer. The choke bias unit is used to output low-frequency DC power to the microwave transducer and to output microwave energy source power to the microwave transducer.

[0025] In some embodiments of the temperature measuring device for microwave-heated non-combustible smoke appliances, the choke bias unit includes a second inductor, one end of which is connected to a power supply module, and the other end of which is connected to a microwave transducer; the other end of the second inductor is also connected to a sampling module and a microwave energy source.

[0026] In some embodiments of the temperature measuring device for microwave-heated non-combustible smoke appliances, the choke bias unit includes a transformer, with the first pin of the transformer connected to a microwave energy source, the second pin of the transformer grounded, the third pin of the transformer connected to a power supply module, the fourth pin of the transformer connected to a microwave transducer, and the fourth pin of the transformer also connected to a sampling module.

[0027] This application also provides a microwave-heated non-flammable smoke appliance, which includes the temperature measuring device described above.

[0028] This application provides a microwave-heated non-combustible smoking device and its temperature measuring apparatus. In the temperature measuring apparatus, the microwave transducer is made of a metal material with good conductivity. Through the action of microwave energy, the cigarette is continuously heated. Simultaneously, through heat conduction between the cigarette and tobacco, the metal temperature of the microwave transducer continuously increases. Since metal exhibits different resistivities at different temperatures, the microwave energy signal is a periodically changing high-frequency AC signal. A microwave suppression module between the microwave transducer and the sampling module can suppress the transmission of the microwave energy signal to the sampling module. The sampling module can sample the low-frequency DC resistivity characterization signal and perform digital quantization to obtain a digital signal. The controller processes the digital signal to obtain a precise heating temperature, thereby realizing the measurement of the cigarette heating temperature. The temperature measuring apparatus in this application integrates the power module and the microwave transducer to achieve temperature measurement. Compared to using a separate temperature sensor, this allows for a more compact overall structure of the microwave-heated non-combustible smoking device, which is beneficial for overall miniaturization design. Attached Figure Description

[0029] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0030] Figure 1 This is a first structural block diagram of a temperature measuring device for a microwave-heated non-combustible smoke appliance provided in an embodiment of this application.

[0031] Figure 2 This is a structural block diagram of the filter unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application.

[0032] Figure 3 This is a first circuit diagram of the filter unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application.

[0033] Figure 4 This is a second circuit diagram of the filter unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application.

[0034] Figure 5 This is a third circuit diagram of the filter unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application.

[0035] Figure 6 This is a fourth circuit diagram of the filter unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application.

[0036] Figure 7 This is a circuit diagram of a microwave suppression module in a temperature measuring device for a microwave-heated non-combustible smoke appliance provided in an embodiment of this application.

[0037] Figure 8This is a second structural block diagram of the temperature measuring device for a microwave-heated non-combustible smoke appliance provided in an embodiment of this application.

[0038] Figure 9 This is a structural block diagram of the choke bias unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application.

[0039] Figure 10 The first circuit diagram of the choke bias unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application is shown.

[0040] Figure 11 The second circuit diagram of the choke bias unit in the temperature measuring device of the microwave-heated non-combustible smoke appliance provided in the embodiments of this application. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] 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. Features thus defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0043] Please see Figure 1 This embodiment provides a temperature measuring device for microwave-heated non-combustible smoke appliances. The temperature measuring device includes a microwave energy source, a microwave transducer, a power supply module, a microwave suppression module, a sampling module, and a controller. The microwave transducer is connected to the microwave energy source, the microwave suppression module is connected to both the power supply module and the microwave transducer, the sampling module is connected to the microwave suppression module, and the controller is connected to the sampling module.

[0044] In practical implementation, the microwave energy source is used to output microwave energy signals, the microwave transducer is used to convert the microwave energy signals into heat energy to heat the cigarettes in the microwave-heated non-combustible tobacco device, the power supply module is used to output low-frequency DC power, the microwave suppression module is used to output low-frequency DC power to the microwave transducer, the sampling module is used to sample the voltage signals of the microwave transducer at different heating temperatures and convert the voltage signals into digital signals; the microwave suppression module is also used to suppress the transmission of microwave energy signals to the sampling module; the controller is used to obtain the heating temperature corresponding to the microwave transducer based on the digital signals, and then measure the heating temperature of the microwave transducer.

[0045] Microwave-heated non-combustible tobacco devices utilize the principle of microwave heating. Alternating microwave energy signals generated by a microwave energy source are converted into a microwave energy field within a resonant cavity via a microwave transducer. The excellent penetrability of microwaves irradiates the cigarette, and precise, uniform temperature control is achieved by manipulating the microwave energy signal. This promotes the release of effective tobacco substances from the tobacco cartridge, resulting in a superior smoking experience. The microwave transducer uses a highly conductive metal material as the radiator. It converts microwave energy into electromagnetic field energy within the resonant cavity, applying this penetrating power to the cigarette. The periodicity of the microwave energy signal causes polar molecules in the tobacco to periodically flip in sync with the microwave energy field. Friction between these polar molecules and other non-polar molecules converts microwave energy into heat. The close contact between the cigarette and the microwave transducer allows for synchronized temperature changes through conduction; therefore, obtaining the heating temperature of the microwave transducer is equivalent to obtaining the heating temperature of the cigarette.

[0046] Because microwave transducers use a highly conductive metallic material as the radiator, the resistivity of the metallic material changes at different temperatures. In this application, a low-frequency DC current is applied to the microwave transducer by a power supply module, so that the microwave transducer converts the temperature-varying resistivity into a corresponding voltage signal. The sampling circuit samples this voltage signal and converts it into a digital signal. The controller acquires this digital signal corresponding to the heating temperature, and the heating temperature of the microwave transducer can be determined based on this digital signal, thereby realizing the temperature measurement of the microwave-heated non-combustible tobacco device and enabling effective control of the cigarette temperature. A microwave suppression module is installed between the power supply module and the microwave transducer to suppress the transmission of microwave energy signals to the sampling module. The microwave energy signal is a periodically varying high-frequency AC signal, which reduces the interference of high-frequency AC signals on the sampling module and the power supply module, thereby improving the accuracy of temperature measurement and enhancing the safety and reliability of the microwave-heated non-combustible tobacco device.

[0047] Please see Figure 2 In some embodiments, the microwave suppression module includes a filtering unit, which is connected to the power supply module and the microwave transducer respectively. The filtering unit is used to filter the microwave energy signal so as to suppress the high-frequency AC signal, while the low-frequency DC signal can pass through and be provided to the sampling circuit to realize subsequent signal processing and complete temperature measurement.

[0048] Please see Figure 3In one embodiment, the filtering unit includes a first resistor, a first capacitor, and a second capacitor. One end of the first resistor is connected to the power supply module, and the other end is connected to the microwave transducer. One end of the first capacitor is connected to one end of the first resistor, and the other end of the first capacitor is grounded. One end of the second capacitor is connected to the other end of the first resistor, and the other end of the second capacitor is grounded. The other end of the first resistor is also connected to the sampling module (corresponding to the S1 signal terminal in the figure) and the microwave transducer (corresponding to R in the figure). ANT One end) connected, R ANT This refers to the resistor corresponding to the microwave transducer. The RF1 signal terminal is connected to a microwave energy signal source to acquire the microwave energy signal. In this embodiment, a filter circuit composed of capacitors and resistors is used to filter the microwave energy signal, thereby suppressing high-frequency AC signals and preventing interference from high-frequency AC signals to the sampling module and power supply module, thus achieving accurate measurement of the heating temperature of the microwave-heated non-combustible smoke appliance.

[0049] Please see Figure 4 In one embodiment, the filtering unit includes a first inductor, a third capacitor, and a fourth capacitor; one end of the first inductor is connected to the power supply module, and the other end of the first inductor is connected to the microwave transducer; one end of the third capacitor is connected to one end of the first inductor, and the other end of the third capacitor is grounded; one end of the fourth capacitor is connected to the other end of the first inductor, and the other end of the fourth capacitor is grounded; the other end of the first inductor is also connected to the sampling module (corresponding to the S1 signal terminal in the figure) and the microwave transducer (corresponding to R in the figure). ANT One end is connected. In this embodiment, an inductor and capacitor form a filter circuit to filter the microwave energy signal, so as to suppress the high-frequency AC signal and avoid the interference of the high-frequency AC signal to the sampling module and the power supply module, thereby realizing the accurate measurement of the heating temperature of the microwave heating non-combustible smoke appliance.

[0050] Please see Figure 5 As one embodiment, the filtering unit includes a microstrip circuit, which is a planar transmission line structure. By setting the microstrip circuit as a filtering unit, high-frequency AC signals can also be suppressed, avoiding interference from high-frequency AC signals to the sampling module and power supply module, thereby realizing accurate measurement of the heating temperature of microwave heating non-combustible smoke appliances.

[0051] Please see Figure 6 As one embodiment, the filtering unit also includes a low-pass filter formed by high-temperature or low-temperature co-fired ceramic technology. This low-pass filter suppresses high-frequency AC signals, avoids interference with the sampling circuit, and achieves accurate sampling.

[0052] Please see Figure 7In other embodiments, the microwave suppression module includes a microstrip line with a length of one-quarter wavelength. One end of the microstrip line is connected to the power supply module, and the other end is connected to the microwave transducer. The other end of the microstrip line is also connected to the sampling module. Here, wavelength refers to the propagation distance of an electromagnetic wave within one complete cycle. The one-quarter wavelength microstrip line can also achieve high impedance for high-frequency AC signals, ensuring suppression of high-frequency AC signals and avoiding interference to the power supply system and sampling circuit. Low-frequency DC signals can be provided to the sampling circuit through the one-quarter wavelength line, suppressing high-frequency signals and reducing interference to the sampling circuit. Low-frequency DC signals resulting from changes in the resistivity of the microwave transducer due to temperature variations are provided to the sampling circuit through the one-quarter wavelength line for subsequent signal processing and temperature measurement.

[0053] Please see Figure 8 This application also provides a temperature measuring device for microwave-heated non-combustible smoke appliances. The temperature measuring device includes a microwave energy source, a microwave transducer, a power supply module, a microwave suppression module, a sampling module, and a controller. In this embodiment, the microwave suppression module is connected to the microwave energy source, the power supply module, and the microwave transducer, respectively, and the sampling module is connected to the microwave suppression module. In this embodiment, the microwave energy source can be connected to the microwave transducer through the microwave suppression module.

[0054] Specifically, the microwave energy source is used to output microwave energy signals, the microwave transducer is used to convert the microwave energy signals into heat energy to heat the cigarettes in the microwave-heated non-combustible smoking device, the power supply module is used to output low-frequency DC power, the microwave suppression module is used to output low-frequency DC power to the microwave transducer and output microwave energy signals to the microwave transducer, the sampling module is used to sample the voltage signals of the microwave transducer at different heating temperatures and convert the voltage signals into digital signals; the microwave suppression module is also used to suppress the transmission of microwave energy signals to the sampling module, and the controller is used to obtain the heating temperature corresponding to the microwave transducer based on the digital signals.

[0055] In this application, a low-frequency DC current is applied to the microwave transducer by a power supply module. This allows the microwave transducer to convert the temperature-dependent resistivity into a corresponding voltage signal. The sampling circuit samples this voltage signal and converts it into a digital signal. The controller acquires this digital signal corresponding to the heating temperature, and the heating temperature of the microwave transducer can be determined based on this digital signal. This enables temperature measurement of the microwave-heated non-combustible tobacco device, facilitating effective control of cigarette temperature. A microwave suppression module is installed between the power supply module and the microwave transducer to suppress the transmission of microwave energy signals to the sampling module. Since the microwave energy signal is a periodically varying high-frequency AC signal, this reduces interference from the high-frequency AC signal to the sampling module and the power supply module, thereby improving the accuracy of temperature measurement and enhancing the safety and reliability of the microwave-heated non-combustible tobacco device.

[0056] Please see Figure 9 In some embodiments, the microwave suppression module includes a choke bias unit, which is connected to the microwave energy source, the power supply module, and the microwave transducer. The choke bias unit is used to output low-frequency DC power to the microwave transducer and to output microwave energy from the microwave transducer. In this embodiment, the choke bias unit enables the low-frequency DC power from the power supply module to be applied to the microwave transducer, while the high-frequency AC signal output by the microwave energy source can only be applied to the microwave transducer and cannot reach the power supply module and the sampling module, thereby avoiding interference from the high-frequency AC signal to the sampling module and the power supply module.

[0057] Please see Figure 10 In one embodiment, the choke bias unit includes a second inductor. One end of the second inductor is connected to the power supply module, and the other end is connected to the microwave transducer. The other end of the second inductor is also connected to the sampling module and the microwave energy source. In this embodiment, the choke bias unit formed by the second inductor can effectively suppress high-frequency AC signals and avoid interference to the sampling module and the power supply module. Furthermore, this circuit structure is simple, which helps to simplify the structure of the temperature measuring device, thereby facilitating the miniaturization of microwave-heated non-combustible smoke appliances.

[0058] Please see Figure 11 In one embodiment, the choke bias unit includes a transformer. Pin 1 of the transformer is connected to the microwave energy source, pin 2 is grounded, pin 3 is connected to the power module, and pin 4 is connected to the microwave transducer and also to the sampling module. In this embodiment, the microwave energy source provides microwave energy signals to the microwave transducer through the transformer. This embodiment uses a transformer to form a choke bias unit, which allows the low-frequency DC power supply to be applied to the microwave transducer, while the high-frequency AC signal output by the microwave energy source can only be applied to the microwave transducer and cannot reach the power module and sampling circuit. The low-frequency DC signal applied by the power module can pass through and be supplied to the microwave transducer. The temperature change causing the radiator resistivity change of the microwave transducer is fed to the sampling circuit for subsequent signal processing and temperature measurement.

[0059] Of course, the choke bias unit in this embodiment can also be formed using high-temperature or low-temperature co-fired ceramic technology to prevent high-frequency signals from entering the DC power supply, thereby avoiding signal interference to the power supply module and sampling module. Since high-temperature or low-temperature co-fired ceramic technology is a known technology, the choke bias unit formed using high-temperature or low-temperature co-fired ceramic technology will not be described in detail.

[0060] It should be noted that the sampling module in this embodiment includes a sampling circuit and an analog-to-digital converter. The sampling module has a known structure, so the structure and principle of the sampling circuit and the analog-to-digital converter will not be described in detail here.

[0061] This application also provides a microwave-heated non-flammable smoke appliance, which includes the temperature measuring device of the microwave-heated non-flammable smoke appliance described above; since the temperature measuring device of the microwave-heated non-flammable smoke appliance has been described in detail above, it will not be repeated here.

[0062] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0063] The temperature measuring device for microwave-heated non-combustible smoke appliances provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A temperature measuring device for a microwave-heated non-combustible smoke appliance, characterized in that, The temperature measuring device includes: A microwave energy source, wherein the microwave energy source is used to output a microwave energy signal; A microwave transducer is connected to the microwave energy source and is used to convert the microwave energy signal into heat energy to heat the cigarette in the microwave-heated non-combustible smoking device. Power module, the power module being used to output low-frequency DC power; A microwave suppression module is connected to both the power supply module and the microwave transducer; the microwave suppression module is used to output the low-frequency DC power to the microwave transducer. A sampling module is connected to the microwave suppression module; the sampling module is used to sample the voltage signal of the microwave transducer at different heating temperatures and convert the voltage signal into a digital signal; the microwave suppression module is also used to suppress the conduction of the microwave energy signal to the sampling module; A controller is connected to the sampling module; the controller is used to obtain the heating temperature corresponding to the microwave transducer based on the digital signal.

2. The temperature measuring device for microwave-heated non-combustible smoke appliances according to claim 1, characterized in that, The microwave suppression module includes a filtering unit, which is connected to the power supply module and the microwave transducer respectively; the filtering unit is used to filter the microwave energy signal.

3. The temperature measuring device for microwave-heated non-combustible smoke appliances according to claim 2, characterized in that, The filtering unit includes a first resistor, a first capacitor, and a second capacitor. One end of the first resistor is connected to the power supply module, and the other end of the first resistor is connected to the microwave transducer. One end of the first capacitor is connected to one end of the first resistor, and the other end of the first capacitor is grounded. One end of the second capacitor is connected to the other end of the first resistor, and the other end of the second capacitor is grounded. The other end of the first resistor is also connected to the sampling module and the microwave transducer.

4. The temperature measuring device for microwave-heated non-combustible smoke appliances according to claim 2, characterized in that, The filtering unit includes a first inductor, a third capacitor, and a fourth capacitor; one end of the first inductor is connected to the power supply module, and the other end of the first inductor is connected to the microwave transducer; one end of the third capacitor is connected to one end of the first inductor, and the other end of the third capacitor is grounded; one end of the fourth capacitor is connected to the other end of the first inductor, and the other end of the fourth capacitor is grounded; the other end of the first inductor is also connected to the sampling module and the microwave transducer.

5. The temperature measuring device for microwave-heated non-combustible smoke appliances according to claim 3, characterized in that, The microwave suppression module includes a microstrip line with a length of one-quarter wavelength; one end of the microstrip line is connected to the power supply module, and the other end of the microstrip line is connected to the microwave transducer. The other end of the microstrip line is also connected to the sampling module.

6. A temperature measuring device for a microwave-heated non-combustible smoke appliance, characterized in that, The temperature measuring device includes: A microwave energy source, wherein the microwave energy source is used to output a microwave energy signal; A microwave transducer, wherein the microwave transducer is used to convert the microwave energy signal into heat energy to heat the cigarette in the microwave-heated non-combustible smoking device; Power module, the power module being used to output low-frequency DC power; A microwave suppression module is provided, which is connected to the microwave energy source, the power supply module, and the microwave transducer respectively. The microwave suppression module is used to output the low-frequency DC power to the microwave transducer and to output the microwave energy signal to the microwave transducer. A sampling module is connected to the microwave suppression module; the sampling module is used to sample the voltage signal of the microwave transducer at different heating temperatures and convert the voltage signal into a digital signal; the microwave suppression module is also used to suppress the conduction of the microwave energy signal to the sampling module; A controller, connected to the sampling module, is used to obtain the heating temperature corresponding to the microwave transducer based on the digital signal.

7. The temperature measuring device for microwave-heated non-combustible smoke appliances according to claim 6, characterized in that, The microwave suppression module includes a choke bias unit, which is connected to the microwave energy source, the power supply module, and the microwave transducer. The choke bias unit is used to output the low-frequency DC power to the microwave transducer and to output the microwave energy source to the microwave transducer.

8. The temperature measuring device for microwave-heated non-combustible smoke appliances according to claim 7, characterized in that, The choke bias unit includes a second inductor, one end of which is connected to the power module and the other end of which is connected to the microwave transducer; the other end of the second inductor is also connected to the sampling module and the microwave energy source.

9. The temperature measuring device for microwave-heated non-combustible smoke appliances according to claim 7, characterized in that, The choke bias unit includes a transformer. The first pin of the transformer is connected to the microwave energy source, the second pin of the transformer is grounded, the third pin of the transformer is connected to the power module, the fourth pin of the transformer is connected to the microwave transducer, and the fourth pin of the transformer is also connected to the sampling module.

10. A microwave-heated non-combustible smoke hood, characterized in that, The microwave-heated non-combustible smoke appliance includes a temperature measuring device as described in any one of claims 1-9.

Images