Control system and method for microwave heating non-combustion smoking set and smoking set

Abstract

The invention is suitable for the technical field of smoking set heating, and provides a control system and method for a microwave heating non-combustion smoking set and the smoking set, and the system comprises a microwave transducer, a microwave isolation module and a microwave power source; the microwave oscillation source is used for providing microwave pulse energy for the microwave transducer; the microwave transducer is used for heating tobacco in a heating cavity of the microwave heating non-combustion smoking set, isolating a microwave alternating current signal and collecting a direct current signal; the microwave isolation module is connected with the microwave transducer and is used for filtering and amplifying a direct current signal of the microwave transducer; the direct-current signal is a direct-current signal corresponding to the temperature value and generated due to the fact that the temperature of the cigarette and the temperature of the microwave transducer change in the heating process; preset impedance is formed between the microwave transducer and the microwave isolation module; the preset impedance is used for performing energy reflection on a microwave alternating current signal of the microwave transducer. The structural complexity of the smoking set can be reduced, and meanwhile the temperature measurement accuracy and the temperature control precision are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of smoking article heating, and in particular, relates to a control system, method and smoking article for microwave heating non-combustion smoking articles. Background Art

[0002] As a new type of tobacco product in recent years, microwave-heated non-burning cigarette products have gained wide attention due to their unique working principle. This type of product uses external microwave energy, through the penetration of microwaves and the friction heating of polar molecules in tobacco, to effectively release the active ingredients in tobacco to produce smoke. Compared with traditional burning tobacco, microwave-heated non-burning tobacco products can significantly reduce the release of harmful components in tobacco, thereby significantly improving the safety of the product. In addition, this type of tobacco product also has many advantages such as rich taste, mellow smoke, and no ash pollution, so it has been widely recognized in the market.

[0003] At present, there are certain limitations in the design of traditional microwave heating smoking utensils. Specifically, these smoking utensils usually require separate temperature sensors to achieve temperature monitoring, which undoubtedly increases the complexity of structural design. More importantly, the temperature sensors in traditional microwave heating smoking utensils are often difficult to achieve close contact with the heated cigarettes, which not only affects the accuracy of temperature measurement, but also brings challenges to temperature control, resulting in poor accuracy of temperature measurement and temperature control.

[0004] In view of the shortcomings of traditional microwave heating smoking utensils in the design and application of temperature sensors, the main technical problem currently faced is how to improve the measurement accuracy and temperature control precision of the temperature sensor while simplifying the structural complexity of the smoking utensils. Summary of the invention

[0005] To overcome the problems existing in the related art, the embodiments of the present application provide a control system, method and smoking device for microwave heating non-combustion smoking devices, which can improve the temperature measurement accuracy and temperature control precision while reducing the structural complexity of the smoking device.

[0006] This application is implemented through the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a control system for a microwave heating non-burning smoking article, including a microwave transducer, a microwave isolation module and a microwave power source;

[0008] The microwave oscillation source is used to provide microwave pulse energy to the microwave transducer;

[0009] The microwave transducer is used to heat the tobacco in the heating cavity of the microwave heated non-burning smoking device and isolate the microwave AC signal to collect the DC signal;

[0010] The microwave isolation module is connected to the microwave transducer and is used to filter and amplify the DC signal of the microwave transducer; the DC signal is a DC electrical signal corresponding to the temperature value generated when the temperature of the cigarette and the microwave transducer changes during the heating process; a preset impedance is formed between the microwave transducer and the microwave isolation module; the preset impedance is used to reflect the energy of the microwave AC signal of the microwave transducer.

[0011] In a possible implementation manner of the first aspect, the microwave transducer includes a support body, a radiator, and a tap structure;

[0012] The radiator is formed of a hollow metal pattern made of metal material, and the whole is rolled into a hollow tubular shape;

[0013] The support body is used to support the radiator;

[0014] The metal pattern is connected to the tap structure; the tap structure is used as a microwave energy feed end and a signal sampling lead; the microwave energy feed end is connected to a microwave power source; the microwave isolation module is connected to a microwave transducer through a signal sampling lead; the signal sampling lead is used to isolate the microwave AC signal through the microwave isolation module to extract a DC signal; the DC signal is used to convert into the temperature in the smoking device cavity.

[0015] In a possible implementation manner of the first aspect, the radiator includes a first impedance matching structure, a first microwave radiating unit, and a second microwave radiating unit;

[0016] The first impedance matching structure, the first microwave radiation unit and the second microwave radiation unit are designed as one body; the first microwave radiation unit and the second microwave radiation unit are symmetrically arranged with respect to the first impedance matching structure.

[0017] In a possible implementation manner of the first aspect, the tap structure includes a first tap and a second tap;

[0018] The first tap is led out from the first impedance matching structure, connected to the microwave power source and the microwave isolation module respectively, and serves as a microwave energy feeding end and a signal sampling lead;

[0019] The second tap is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead.

[0020] In a possible implementation manner of the first aspect, the tap structure includes a third tap, a fourth tap, and a fifth tap;

[0021] The third tap is led out from the first impedance matching structure, connected to the microwave power source, and used as a microwave energy feeding end;

[0022] The fourth tap is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead;

[0023] The fifth tap is led out from the second microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead.

[0024] In a possible implementation manner of the first aspect, the radiator further includes a transducer component;

[0025] The energy conversion component, the first impedance matching structure, the first microwave radiation unit and the second microwave radiation unit are designed separately;

[0026] The tap structure includes a sixth tap, a seventh tap, an eighth tap, a ninth tap and a tenth tap;

[0027] The sixth tap is led out from the first impedance matching structure, connected to the microwave power source, and used as a microwave energy feeding end;

[0028] The seventh tap is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead;

[0029] The eighth tap is led out from the second microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead;

[0030] The ninth tap and the tenth tap are led out from the transducer assembly, are connected to the microwave isolation module, and are used as signal sampling leads.

[0031] In a possible implementation manner of the first aspect, a first impedance is provided between the seventh tap and the eighth tap; a second impedance is provided between the ninth tap and the tenth tap; and the first impedance and the second impedance have different values.

[0032] In a possible implementation of the first aspect, the control system of the microwave heating non-burning smoking article further includes a power supply, a power management module and a microprocessor;

[0033] The power management module is used to provide charge and discharge management for the power supply and provide electrical energy for the microwave power source;

[0034] The microprocessor is used to quantify the DC signal to obtain the specific tobacco temperature.

[0035] In a second aspect, the present application provides a control method for a microwave heating non-burning smoking utensil, which is applied to the control system of the microwave heating non-burning smoking utensil in the first aspect, comprising:

[0036] After the smoking device is turned on, the microwave oscillator source is controlled to provide microwave pulse energy to the microwave transducer, and the DC signal output from the microwave isolation module is monitored to obtain temperature information;

[0037] Based on the temperature information, it is determined whether a cigarette is inserted; if no cigarette is inserted, the microwave power source is controlled to stop output and an alarm message is issued; the alarm message is used to remind the user that a cigarette is not inserted; if a cigarette is inserted, the heating mode is turned on, and based on the temperature information obtained from the DC signal output by the microwave isolation module, the microwave pulse energy is controlled to perform constant temperature heating;

[0038] When the user inhales, the temperature fluctuates under the influence of the smoke flow. Based on the electrical signal output by the microwave isolation module, the DC signal fluctuation is detected, and the number of puffs is counted according to the fluctuation law of the DC signal.

[0039] In a third aspect, the present application provides a microwave heating without burning smoking article, which is provided with a control system of the microwave heating without burning smoking article as in the first aspect.

[0040] It can be understood that the beneficial effects of the second to third aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0041] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0042] In the embodiment of the present application, microwave energy is converted into a uniform electromagnetic field around the cigarette through a microwave transducer, polar molecules in the tobacco are stimulated to flip with the alternating electromagnetic field, friction between molecules generates heat, and the effective ingredients of the tobacco are released. At the same time, the electrical signal output by the microwave transducer passes through a microwave isolation module. The microwave isolation module presents high impedance to high-frequency microwave AC signals. The energy of the microwave AC signal is reflected back and concentrated on the microwave transducer, and does not affect the impedance of the microwave energy feed end. The DC signal caused by the resistance change caused by temperature change on the metal material can pass through the microwave isolation module. After filtering and amplifying the DC signal, the microwave isolation module realizes the output of the DC signal, thereby realizing the integrated design of the temperature detection unit and the transducer, which can effectively simplify the structure of the microwave smoking device and realize high-sensitivity temperature detection capability.

[0043] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0045] Figure 1It is a structural schematic diagram of a control system of a microwave heating non-combustion smoking utensil provided in one embodiment of the present application;

[0046] Figure 2 This is a plan view showing a radiator of a microwave transducer provided in one embodiment of the present application;

[0047] Figure 3 This is a diagram showing a microwave transducer provided by an embodiment of the present application rolled into a hollow tubular shape;

[0048] Figure 4 is a schematic diagram of signal transmission corresponding to the tap structure provided in an embodiment of the present application;

[0049] Figure 5 This is a plan view showing a radiator of a three-tap microwave transducer provided in one embodiment of the present application;

[0050] Figure 6 This is a display diagram of a three-tap microwave transducer provided in an embodiment of the present application rolled into a hollow tubular shape;

[0051] Figure 7 It is a signal transmission schematic diagram corresponding to a three-tap tap structure provided in an embodiment of the present application;

[0052] Figure 8 This is a plan view showing a radiator of another three-tap microwave transducer provided in one embodiment of the present application;

[0053] Fig. 9 This is a display diagram of another three-tap microwave transducer provided by an embodiment of the present application rolled into a hollow tubular shape;

[0054] Fig.10 This is a plan view showing a radiator of a five-tap microwave transducer provided in one embodiment of the present application;

[0055] Fig.11 This is a diagram showing a five-tap microwave transducer rolled into a hollow tubular shape according to an embodiment of the present application;

[0056] Fig.12 It is a signal transmission schematic diagram corresponding to a five-tap tap structure provided in an embodiment of the present application;

[0057] Fig.13 It is a schematic diagram of the structure of a microprocessor provided in one embodiment of the present application. DETAILED DESCRIPTION

[0058] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0059] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0060] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0061] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0062] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0063] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0064] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0065] Figure 1This is a schematic diagram of the control system structure of a microwave heating non-combustion smoking utensil provided in an embodiment of the present application, with reference to Figure 1 The control system of the microwave heating non-burning smoking device is described in detail as follows:

[0066] A control system for a microwave heating non-burning smoking article is applied to the microwave heating non-burning smoking article and comprises a microwave transducer, a microwave isolation module and a microwave power source.

[0067] The microwave oscillation source is used to provide microwave pulse energy to the microwave transducer.

[0068] The microwave transducer is used to heat the tobacco in the heating cavity of the microwave heated non-burning smoking device and to isolate the microwave AC signal to collect the DC signal.

[0069] The microwave isolation module is connected to the microwave transducer and is used to filter and amplify the DC signal of the microwave transducer; the DC signal is a DC electrical signal corresponding to the temperature value generated when the temperature of the cigarette and the microwave transducer changes during the heating process; a preset impedance is formed between the microwave transducer and the microwave isolation module; the preset impedance is used to reflect the energy of the microwave AC signal of the microwave transducer.

[0070] In this embodiment, microwave energy propagates on the surface of the metal pattern due to the skin effect, and the metal material exhibits different resistances at different temperatures due to the different activity levels of electrons. The electrical signal output by the microwave transducer passes through the microwave isolation module, and the microwave isolation module presents high impedance to the high-frequency microwave AC signal. The energy of the microwave AC signal is reflected back and does not affect the impedance of the feed-in end of the microwave energy. The DC signal caused by the resistance change on the metal material due to temperature change can pass through the microwave isolation module. After the microwave isolation module filters and amplifies the DC signal, the specific value can be obtained through the ADC of the microprocessor, and then the accurate corresponding temperature data can be obtained according to the standard material characteristic curve.

[0071] Figure 2 is a plan view of a radiator of a microwave transducer provided in an embodiment of the present application, referring to Figure 2 , the microwave transducer includes a supporting body, a radiator and a tap structure.

[0072] The radiator is formed of a hollow metal pattern made of metal material, such as Figure 1 As shown, the whole is rolled into a hollow tubular shape, such as Figure 3 shown.

[0073] The support body is used to support the radiator. In order to clearly show the structure of the radiator, the specific form of the support body is not shown in the figure. Figure 2 and Figure 3 Displayed in.

[0074] The metal pattern is connected to the tap structure; the tap structure is used as a microwave energy feed end and a signal sampling lead; the microwave energy feed end is connected to a microwave power source; the microwave isolation module is connected to a microwave transducer through a signal sampling lead; the signal sampling lead is used to isolate the microwave AC signal through the microwave isolation module to extract a DC signal; the DC signal is used to convert into the temperature in the smoking device cavity.

[0075] The above microwave transducer is used in microwave peripheral heating tobacco products. Microwave heating non-combustion tobacco products adopt the microwave heating principle, transmit the microwave energy from the microwave source to the tobacco through the transducer, utilize the good penetration of microwaves, and control the microwave irradiation energy to achieve accurate and uniform temperature control and heating of cigarettes, promote the release of effective tobacco substances in the tobacco cartridge, and achieve a good smoking experience.

[0076] In this embodiment, the diameter of the microwave heating non-burning tobacco cartridge is about 7.2 mm, wherein the length of the tobacco segment is generally controlled to be about 12 mm to 14 mm, and the rest is the filter segment.

[0077] Exemplarily, the material of the support body can be ceramic or high temperature resistant polymer material. The material of the support body can clamp the radiator by forming a film or printing, support the radiator, and improve the strength of the metal pattern. When in use, the heated cigarette is located in the middle of the hollow tubular radiator. The microwave power source of the microwave heating tobacco set feeds microwave energy to the microwave transducer through the microwave energy feeding end. The microwave transducer forms a uniform electromagnetic field in the hollow part of the transducer. The polar molecules in the tobacco are reversed in orientation under the action of the alternating electromagnetic field, and the friction between the molecules generates heat and stimulates the release of effective ingredients in the tobacco.

[0078] Metal materials will produce resistance changes when the temperature changes. Sampling is achieved through the tap structure and microwave isolation module to detect changes in DC parameters such as resistance, voltage, and current. After processing, the actual temperature changes are mapped. Therefore, this embodiment separates and samples the microwave AC signal and the DC signal on the control system of the microwave heating non-burning tobacco by connecting the metal pattern designed in the microwave transducer and the tap structure to the microwave isolation module. It is possible to sense the temperature change of the cigarette by identifying the change of the DC signal through the sampling circuit without affecting the impedance and radiation characteristics of the microwave port of the transducer.

[0079] In the tobacco section of the cigarette cartridge, the radiator of the microwave converter is made of metal foil, and the feed end of the microwave energy is marked as O. Microwave energy propagates on the surface of the metal pattern due to the skin effect, and the metal material exhibits different resistances due to the different activity levels of electrons at different temperatures. By adding a tap structure or a separate detection pattern to the metal pattern design of the microwave transducer and leading out the corresponding lead, the lead passes through the microwave isolation module. The microwave isolation module presents high impedance to high-frequency AC signals, and the energy of the AC signal is reflected back, and does not affect the impedance of the feed end of the microwave energy. The DC signal caused by the resistance change on the metal material due to temperature change can pass through the microwave isolation module, and then the specific value can be obtained through the ADC of the microprocessor, and then the accurate corresponding temperature data can be obtained according to the standard material characteristic curve.

[0080] In this embodiment, microwave energy is converted into a uniform electromagnetic field around the cigarette through a transducer, which excites the polar molecules in the tobacco to flip with the alternating electromagnetic field, and generates heat through friction between the molecules, thereby releasing the effective ingredients of the tobacco. At the same time, taps are added to the metal graphic design of the microwave transducer to lead out the corresponding leads. The leads present high impedance to high-frequency AC signals through the microwave isolation module. The energy of the AC signal is reflected back and concentrated on the transducer, and does not affect the impedance of the microwave energy feed end, thereby realizing the output of a DC signal, thereby realizing the integrated design of the temperature detection unit and the transducer, which can effectively simplify the structure of the microwave smoking device and achieve high-sensitivity temperature detection capability.

[0081] In one embodiment, the radiator includes a first impedance matching structure, a first microwave radiating unit and a second microwave radiating unit.

[0082] The first impedance matching structure, the first microwave radiation unit and the second microwave radiation unit are designed as one body; the first microwave radiation unit and the second microwave radiation unit are symmetrically arranged with respect to the first impedance matching structure.

[0083] For example, see Figures 2 to 4 , the tap structure has two taps. Then, the tap structure includes a first tap O and a second tap A.

[0084] The first tap O is led out from the first impedance matching structure, connected to the microwave power source and the microwave isolation module respectively, and used as a microwave energy feeding end and a signal sampling lead; the second tap A is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead.

[0085] Exemplarily, the first tap O is used as both a microwave energy feed-in terminal and a signal sampling lead, and the second tap A is used as a signal sampling lead. The positions in the figure are only examples, and can be other positions different from the O point. After passing through the microwave isolation module, the DC signals O' and A' are extracted, and the ADC of the microprocessor completes the quantization processing of the sampled signal to obtain the specific temperature.

[0086] In one embodiment, see Figures 5 to 7 , the tap structure has three taps. Then, the tap structure includes a third tap O1, a fourth tap A1 and a fifth tap B1.

[0087] The third tap O1 is led out from the first impedance matching structure, connected to the microwave power source, and used as a microwave energy feeding end; the fourth tap A1 is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead; the fifth tap B1 is led out from the second microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead.

[0088] Exemplarily, after the two signal sampling leads pass through the microwave isolation module, the DC signals A1' and B1' are extracted, and the microprocessor completes the quantization processing of the sampling signals to obtain the specific temperature.

[0089] For example, see Figures 8 to 9 , two of the taps in the tap structure can be set at Figure 5 The radiator further includes a transducer component P, and the two taps of the tap structure can be arranged on the transducer component P.

[0090] The transducer component P and the radiator including the first impedance matching structure, the first microwave radiating unit and the second microwave radiating unit are designed separately. The transducer component P can be wrapped around the metal pattern, and when the whole is rolled into a hollow tubular shape, the transducer component P is bent correspondingly at the bottom side of the hollow tubular shape, and the fourth tap A1 and the fifth tap B1 are butt-jointed.

[0091] The third tap O1 is led out from the first impedance matching structure, connected to the microwave power source, and used as a microwave energy feeding end; the fourth tap A1 and the fifth tap B1 are led out from the transducer component P, both connected to the microwave isolation module, and used as signal sampling leads. Figure 7 As shown, after passing through the microwave isolation module, the DC signals A1' and B1' are extracted, and the ADC function of the microprocessor completes the quantization processing of the sampled signals to obtain the specific temperature.

[0092] In one embodiment, see Figures 10 to 12 The tap structure has five taps, and the transducer component P is designed separately from the first impedance matching structure, the first microwave radiation unit and the second microwave radiation unit.

[0093] The tap structure includes a sixth tap O2, a seventh tap A2, an eighth tap B2, a ninth tap C and a tenth tap D; the sixth tap O2 is led out from the first impedance matching structure, connected to the microwave power source, and used as a microwave energy feeding end; the seventh tap A2 is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead; the eighth tap B2 is led out from the second microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead; the ninth tap C and the tenth tap D are led out from the transducer component P, both connected to the microwave isolation module, and used as signal sampling leads.

[0094] Exemplarily, there is a first impedance between the seventh tap A2 and the eighth tap B2; there is a second impedance between the ninth tap C and the tenth tap D; and the first impedance and the second impedance have different values.

[0095] After the above two groups of signal sampling leads pass through the microwave isolation module, a group of DC signals A2' and B2', and a group of DC signals C' and D' are extracted. Since the values ​​of the first impedance and the second impedance are different, the two groups of DC signals output after passing through the microwave isolation module are different, so that the ADC function of the microprocessor completes the quantization processing of the sampling signal and obtains two groups of data at the same time with a difference. The relationship between the difference information and the resistance can be used to achieve more accurate temperature identification, which can be more accurate than using a group of DC signals to obtain a specific temperature in the above embodiment.

[0096] It should be noted that the tap positions in the above embodiments are examples and may also be set at other positions of the radiator.

[0097] See also Figure 1 , a control system for a microwave heating non-burning smoking device, also includes a power supply, a power management module, a microwave power source and a microprocessor.

[0098] The power management module is used to provide charge and discharge management for the power supply and provide electrical energy for the microwave power source;

[0099] The microprocessor is used to quantify the DC signal to obtain the specific tobacco temperature.

[0100] Exemplarily, the various structures of the microwave transducer and the microwave isolation module are in the microwave resonant cavity, and together with the microwave power source, they form a microwave front end. The power supply of the microwave heating non-burning smoking device can be powered by a lithium battery, the DCDC power management module provides charge and discharge management for the lithium battery, and the microprocessor MCU monitors the lithium battery power through the ADC function. The DCDC power management module provides +8V drain voltage and -1.2V gate voltage for the microwave power source. The microprocessor outputs a pulse signal through the IO port to control the start and output of the microwave power source, and realizes the microwave output energy by adjusting the duty cycle of the control signal. The microprocessor monitors the DC signal output by the microwave isolation module through the ADC to achieve temperature measurement.

[0101] It can be seen that the control system of the microwave heating non-burning smoking device of the present invention converts microwave energy into a uniform electromagnetic field around the cigarette through a microwave transducer, thereby stimulating the polar molecules in the tobacco to flip with the alternating electromagnetic field, generating heat through friction between the molecules, and realizing the release of the effective ingredients of the tobacco. At the same time, based on the microwave isolation module, an integrated design of the temperature detection unit and the transducer is realized, which can effectively simplify the structure of the microwave smoking device, realize high-sensitivity temperature detection capability, and realize the temperature control of the smoking device by utilizing temperature changes.

[0102] The present application provides a control method for a microwave heating non-burning smoking article, which is applied to a control system of a microwave heating non-burning smoking article as in the above-mentioned embodiment, comprising:

[0103] After the smoking device is turned on, the microwave oscillation source is controlled to provide microwave pulse energy to the microwave transducer, and the DC signal output from the microwave isolation module is monitored to obtain temperature information.

[0104] Based on the temperature information, it is determined whether a cigarette has been inserted; if no cigarette has been inserted, the microwave power source is controlled to stop output and an alarm message is issued; the alarm message is used to remind the user that a cigarette has not been inserted; if a cigarette has been inserted, the temperature rise heating mode is turned on, and based on the temperature information obtained from the DC signal output from the microwave isolation module, the microwave pulse energy is controlled to perform constant temperature heating.

[0105] As an example, the specific control process of the microwave heating non-burning smoking device after it is turned on is introduced. First, the microprocessor controls the DCDC power management module to provide a test pulse to the microwave power source, and at the same time monitors the electrical signal output from the microwave isolation module to obtain temperature information, and judges whether a cigarette is inserted according to the temperature rise change rate. If no cigarette is inserted, it is no-load, and the microprocessor controls the DCDC power management module to turn off the gate voltage and drain voltage output, so that the microwave power source stops outputting, and sends out sound, light, vibration and other alarm information through the IO port, such as Figure 1 As shown, the user is prompted that the cigarette is not inserted.

[0106] When the smoking device detects that a cigarette has been inserted, the microprocessor starts the heating mode, obtains temperature information from the DC signal output by the microwave isolation module, and realizes microwave energy control by controlling the signal duty cycle of the DCDC power management module to achieve constant temperature heating.

[0107] When the user inhales, the temperature fluctuates under the influence of the smoke flow. Based on the electrical signal output by the microwave isolation module, the DC signal fluctuation is detected, and the number of puffs is counted according to the fluctuation law of the DC signal.

[0108] For example, when the user draws, the temperature fluctuates under the influence of the smoke flow, and the microprocessor detects the signal fluctuation from the electrical signal output by the microwave isolation module, and counts the number of puffs according to the fluctuation law. When the number of puffs reaches a preset threshold or the heating time reaches a preset heating time, the microprocessor prompts the user to use the cigarette through sound, light, vibration and other alarm information, and automatically shuts down.

[0109] The present application provides a microwave heating non-burning smoking article, which is provided with a control system of the microwave heating non-burning smoking article as described in the above embodiment.

[0110] See also Fig.13 An embodiment provides a microprocessor, which is used to execute the control method of the microwave heating non-burning smoking device in the above embodiment.

[0111] The present application also provides a microprocessor, see Fig.13 The microprocessor 200 may include: at least one processor 210 and a memory 220, wherein the memory 220 stores a computer program that can be run on at least one processor 210, and when the processor 210 executes the computer program, the steps in any of the above method embodiments are implemented.

[0112] Exemplarily, the computer program may be divided into one or more modules / units, one or more modules / units are stored in the memory 220, and executed by the processor 210 to complete the present application. One or more modules / units may be a series of computer program segments capable of completing specific functions, and the program segments are used to describe the execution process of the computer program in the microprocessor 200.

[0113] Those skilled in the art will understand that Fig.13 This is only an example of a microprocessor and does not constitute a limitation of the microprocessor. The microprocessor may include more or fewer components than shown in the figure, or a combination of certain components, or different components, such as input and output devices, network access devices, buses, etc.

[0114] The processor 210 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0115] The memory 220 may be an internal storage unit of the microprocessor or an external storage device of the microprocessor, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. The memory 220 is used to store computer programs and other programs and data required by the microprocessor. The memory 220 may also be used to temporarily store data that has been output or is to be output.

[0116] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0117] The rapid intelligent detection method for physical and chemical indicators of hazardous waste provided in the embodiments of the present application can be applied to microprocessors such as computers, tablet computers, laptops, netbooks, personal digital assistants (PDAs), etc. The embodiments of the present application do not impose any restrictions on the specific type of microprocessor.

[0118] For example, the above-mentioned smoking device is a smoking device that is heated by microwaves but not burned. The control system can be built into the smoking device, or the microprocessor part can be made an external device, and the operation of the smoking device can be controlled by the built-in device of the wireless control part.

[0119] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0120] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A control system for a microwave heating non-burning smoking device, characterized in that: Applied to microwave heating non-burning smoking utensils, including microwave transducer, microwave isolation module and microwave power source; The microwave oscillation source is used to provide microwave pulse energy to the microwave transducer; The microwave transducer is used to heat the tobacco in the heating cavity of the microwave-heated non-combustion smoking device and isolate the microwave AC signal to collect the DC signal; The microwave isolation module is connected to the microwave transducer and is used to filter and amplify the DC signal of the microwave transducer; the DC signal is a DC signal corresponding to the temperature value generated when the temperature of the cigarette and the microwave transducer changes during the heating process; a preset impedance is formed between the microwave transducer and the microwave isolation module; the preset impedance is used to reflect the energy of the microwave AC signal of the microwave transducer.

2. The control system of the microwave heating non-burning smoking article according to claim 1, characterized in that: The microwave transducer comprises a supporting body, a radiator and a tap structure; The radiator is formed of a hollow metal pattern made of metal material and rolled into a hollow tubular shape as a whole; The support body is used to support the radiator; The metal pattern is connected to the tap structure; the tap structure is used as a microwave energy feed end and a signal sampling lead; the microwave energy feed end is connected to the microwave power source; the microwave isolation module is connected to the microwave transducer through the signal sampling lead; the signal sampling lead is used to isolate the microwave AC signal through the microwave isolation module to extract a DC signal; the DC signal is used to convert into the temperature in the smoking device cavity.

3. The control system of the microwave heating non-burning smoking article according to claim 2, characterized in that: The radiator comprises a first impedance matching structure, a first microwave radiating unit and a second microwave radiating unit; The first impedance matching structure, the first microwave radiation unit and the second microwave radiation unit are designed as one body; the first microwave radiation unit and the second microwave radiation unit are symmetrically arranged with respect to the first impedance matching structure.

4. The control system of the microwave heating non-burning smoking article according to claim 3, characterized in that: The tap structure includes a first tap and a second tap; The first tap is led out from the first impedance matching structure, connected to the microwave power source and the microwave isolation module respectively, and serves as a microwave energy feeding end and a signal sampling lead; The second tap is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead.

5. The control system of the microwave heating non-burning smoking article according to claim 3, characterized in that: The tap structure includes a third tap, a fourth tap and a fifth tap; The third tap is led out from the first impedance matching structure, connected to the microwave power source, and used as a microwave energy feeding end; The fourth tap is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead; The fifth tap is led out from the second microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead.

6. The control system of the microwave heating non-burning smoking article according to claim 3, characterized in that: The radiator also includes a transducer component; The energy conversion component is designed separately from the first impedance matching structure, the first microwave radiation unit and the second microwave radiation unit; The tap structure includes a sixth tap, a seventh tap, an eighth tap, a ninth tap and a tenth tap; The sixth tap is led out from the first impedance matching structure, connected to the microwave power source, and used as a microwave energy feeding end; The seventh tap is led out from the first microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead; The eighth tap is led out from the second microwave radiation unit, connected to the microwave isolation module, and used as a signal sampling lead; The ninth tap and the tenth tap are led out from the energy conversion component, are connected to the microwave isolation module, and are used as signal sampling leads.

7. The control system of the microwave heating non-burning smoking article according to claim 6, characterized in that: There is a first impedance between the seventh tap and the eighth tap; there is a second impedance between the ninth tap and the tenth tap; and the first impedance and the second impedance have different values.

8. The control system of the microwave heating non-burning smoking article according to claim 1, characterized in that: Also includes a power supply, a power management module and a microprocessor; The power management module is used to provide charge and discharge management for the power supply and provide electrical energy for the microwave power source; The microprocessor is used to obtain the specific tobacco temperature after quantizing the DC signal.

9. A method for controlling a microwave heating non-burning smoking device, characterized in that: A control system applied to a microwave heating non-burning smoking article as claimed in any one of claims 1 to 8, comprising: After the smoking device is turned on, the microwave oscillation source is controlled to provide microwave pulse energy to the microwave transducer, and the DC signal output from the microwave isolation module is monitored to obtain temperature information; Based on the temperature information, it is determined whether a cigarette is inserted; if no cigarette is inserted, the microwave power source is controlled to stop outputting and an alarm message is issued; the alarm message is used to remind the user that a cigarette is not inserted; if a cigarette is inserted, the temperature rise heating mode is turned on, and based on the temperature information obtained from the DC signal output by the microwave isolation module, the microwave pulse energy is controlled to perform constant temperature heating; When the user inhales, the temperature fluctuates under the influence of the smoke flow, and the DC signal fluctuation is detected based on the electrical signal output by the microwave isolation module, and the number of puffs is counted according to the fluctuation law of the DC signal.

10. A microwave heating non-burning smoking device, characterized in that: A control system for the microwave heating non-burning smoking article as claimed in any one of claims 1 to 8 is provided.

Images