RU2840151C2 - Temperature control method and equipment for magnetically heated heating body and electronic device - Google Patents

Abstract

FIELD: smoking accessories.

SUBSTANCE: method and apparatus for controlling temperature of a magnetic heat-generating body, as well as electronic device (400). Method of controlling temperature includes: obtaining information about parameters of at least one heat-generating body in a cigarette intended for smoking; calculation of first magnetic field strength corresponding to Curie temperature, and controlling the first amount of current passing through the coil inside the smoking device so that the magnetic field strength generated by the coil is constant and equal to the first magnetic field strength; as well as receiving the temperature control command, determining the required temperature corresponding to the temperature control command, calculating the second current value based on the desired temperature and the temperature coefficient of resistance, as well as controlling the amount of current passing through the fuel element until a second current value is achieved.

EFFECT: after heat-generating body heating to Curie temperature by means of magnetic field strength generated by coil, heating and temperature control of current-inductive resistance material in heat-generating body is carried out by means of TCR (temperature coefficient of resistance), which provides accuracy of temperature control and adjustment.

9 cl, 4 dwg

Description

[0001] This application claims priority to Chinese Patent Application No. 202111460311.2, entitled "TEMPERATURE CONTROL METHOD AND APPARATUS FOR MAGNETIC HEAT-EMITTING BODY, AND ELECTRONIC DEVICE", filed on December 2, 2021, in the State Intellectual Property Office of China, which is incorporated herein by reference in its entirety.

Field of technology to which the invention relates

[0002] The present disclosure relates to the technical field of temperature control of heating elements, and in particular to a temperature control method and temperature control equipment for a heating element with magnetic heating, as well as to an electronic device.

State of the art

[0003] During the heating of the combustion-free heating vaping kit, the cigarette inserted into the combustion-free heating vaping kit is heated to generate an aerosol. According to the traditional heating method, an inductive resistance material such as a heating wire is inserted into the cigarette and is powered by the vaping kit, and the temperature of the inductive resistance material for heating is controlled by the TCR (temperature coefficient of resistance). Generally, the aerosol generation matrix is heated to a temperature of several hundred degrees to efficiently and stably generate an aerosol, which requires a large current and may cause a portion of the aerosol generation matrix inside the cigarette to be burned due to overheating.

[0004] At present, a heating element made of a magnetic material is placed inside a cigarette, and magnetic induction heating of the heating element is carried out by heating a magnetic coil located inside a vaping kit with heating without combustion. However, since the magnetic material has the characteristic of a Curie temperature, the magnetic material has a significant difference in the rate of change of temperature before and after the Curie temperature, and heating elements made of different magnetic materials differ in Curie temperature, resulting in low accuracy in regulating the heating temperature of a cigarette by magnetic induction heating.

The essence of the invention

[0005] To solve the above problem, according to embodiments of the present disclosure, a temperature control method and equipment for a heating element with magnetic heating, as well as an electronic device, are provided.

[0006] In a first aspect, according to an embodiment of the present disclosure, a method for regulating a temperature for a heating element with magnetic heating is provided, the method including:

obtaining information about the parameters of at least one heating element in a cigarette intended for smoking, where said at least one heating element includes a current-inductive resistance material, and the information about the parameters includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current-inductive resistance material;

calculating a first magnetic field strength corresponding to the Curie temperature and controlling the magnitude of the current flowing through the coil within the vaping kit until the first current value is reached in order to maintain the magnetic field strength generated by the coil constant at the first magnetic field strength; and

receiving a temperature control command, determining a desired temperature corresponding to the temperature control command, calculating a second current value based on the desired temperature and a temperature coefficient of resistance, and controlling the current value flowing through the heating element until the second current value is reached.

[0007] Preferably, calculating the value of the first magnetic field strength corresponding to the Curie temperature includes:

determining, in the case where at least two Curie temperatures exist, the Curie temperature with the lowest temperature as the first Curie temperature and calculating a first magnetic field strength corresponding to the first Curie temperature; and

defining, in the case where there is only one Curie temperature, this Curie temperature as the first Curie temperature and calculating the first magnetic field strength corresponding to the first Curie temperature.

[0008] Preferably, calculating the value of the second current quantity based on the required temperature and the temperature coefficient of resistance includes:

calculating the first temperature difference between the desired temperature and the first Curie temperature; and

calculation of the second current value based on the first temperature difference and the temperature coefficient of resistance.

[0009] Preferably, after adjusting the magnitude of the current flowing through the coil inside the vaping kit to a first magnitude of the current to maintain the magnitude of the magnetic field intensity generated by the coil constant at the level of the magnitude of the first magnetic field intensity, the method further comprises:

determining, in the case where at least two Curie temperatures exist, a second Curie temperature and calculating the value of a second temperature difference between the second Curie temperature and the first Curie temperature, where the second Curie temperature is a Curie temperature different from the first Curie temperature; and

calculating a value of a third current magnitude based on a temperature coefficient of resistance corresponding to a second Curie temperature and a value of a second temperature difference, and adjusting the magnitude of the current flowing through the second heating element to a value of the third current magnitude, where the heating element includes a first heating element and a second heating element, the first heating element corresponds to the first Curie temperature, and the second heating element corresponds to the second Curie temperature.

[0010] Preferably, calculating the value of the second current magnitude based on the value of the first temperature difference and the temperature coefficient of resistance includes:

calculating a value of a second current magnitude based on the value of the first temperature difference and the temperature coefficient of resistance in the case where the heating element is the first heating element; and

determining the value of the actual temperature difference based on the value of the first temperature difference and the value of the second temperature difference, and then calculating the second current value based on the value of the actual temperature difference and the temperature coefficient of resistance in the case where the heating element is the second heating element.

[0011] Preferably, receiving a temperature control command and determining a desired temperature corresponding to the temperature control command includes: receiving a temperature control command, determining a desired temperature corresponding to the temperature control command, and determining a target heating element corresponding to the desired temperature.

[0012] In a second aspect, according to an embodiment of the present disclosure, a temperature control equipment for a heating element with magnetic heating is proposed, wherein the equipment includes: an obtaining module, a calculating module and a receiving module. The obtaining module is configured to obtain information about the parameters of said at least one heating element in a cigarette intended for smoking, wherein said at least one heating element includes a current-inductive resistance material, and the parameter information includes a Curie temperature of the heating element and a temperature coefficient of resistance of the current-inductive resistance material. The calculating module is configured to calculate a first magnetic field strength corresponding to the Curie temperature and to control the magnitude of the current flowing through a coil inside the vaping kit so that it is equal to the first current value, in order to control the magnetic field strength generated by the coil so that it is constant at the level of the first magnetic field strength. The receiving module is configured to receive a temperature control command, determine a desired temperature corresponding to the temperature control command, calculate a second current value based on the desired temperature and a temperature coefficient of resistance, and control a current value flowing through the heating element so that it is equal to the second current value.

[0013] According to an embodiment of the present invention, an electronic device is proposed, wherein the electronic device comprises a memory device, a processor and a computer program stored in the memory device and executed by the processor. The processor, when executing the computer program, performs the steps in the method according to the first aspect or any possible implementation in the first aspect.

[0014] In a fourth aspect, a computer-readable storage medium is provided according to an embodiment of the present disclosure. The computer-readable storage medium stores a computer program. The computer program, when executed by a processor, causes the processor to perform the steps in the method according to the first aspect or any possible implementation in the first aspect.

[0015] The advantageous effects of the present invention are as follows. A current-inductive resistance material is added to the heating element, the heating element is heated to the Curie temperature by a magnetic field generated by a coil, and temperature control is performed on the current-inductive resistance material in the heating element by a TCR, ensuring the accuracy of temperature control. In addition, since the temperature of the heating element has already reached the Curie temperature under the action of a magnetic field, the heating element is heated by the TCR only from the Curie temperature, which can avoid the problem of the burnt matrix for generating a local aerosol caused by excessive current in the conventional TCR heating method.

Brief description of the drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings to be used in the embodiments are briefly described below. It is obvious that the drawings described below show only the embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art from the drawings without creative efforts.

[0017] Fig. 1 is a flow chart of a method for controlling the temperature of a magnetic heating element according to an embodiment of the present invention;

[0018] Fig. 2 is a schematic diagram showing the relationship between resistance and temperature of a ferrite according to an embodiment of the present invention;

[0019] Fig. 3 is a schematic structural diagram of a temperature control equipment of a magnetic heating element according to an embodiment of the present invention; and

[0020] Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed description of embodiments

[0021] The technical solutions of the embodiments of the present disclosure are clearly and completely described hereinafter in conjunction with the drawings of the embodiments of the present disclosure.

[0022] In the introduction hereinafter, the terms "first", "second" are merely for the purpose of description and should not be understood as indicating or implying relative importance. The introduction below provides several embodiments according to the present disclosure, and different embodiments may be substituted or combined. Therefore, the present disclosure may also be considered to include all possible combinations of the described identical and/or different embodiments. Thus, if one embodiment comprises features A, B and C, and another embodiment comprises features B and D, then the present disclosure shall also be considered to include all other possible combinations comprising one or more of A, B, C and D, although this embodiment may not be clearly written in the content below.

[0023] The following description provides examples and does not limit the scope, applicability, or examples described in the claims. Changes may be made in the function and arrangement of the described elements without departing from the scope of the present disclosure. Various examples may be omitted, replaced, or added with respect to various procedures or components as appropriate. For example, the described methods may be performed in an order different from the order described, and various steps may be added, omitted, or combined. In addition, features described with respect to some examples may be combined in other examples.

[0024] Referring to Fig. 1, which is a flow chart of a method for controlling the temperature of a heating element with magnetic heating according to an embodiment of the present invention. In this embodiment of the present invention, the method includes the following steps S101-S103.

[0025] In step S101, information about the parameters of said at least one heating element in the cigarette intended for smoking is obtained. Said at least one heating element includes a current-inductive resistance material, and the information about the parameters includes a Curie temperature of the heating element and a temperature coefficient of resistance of the current-inductive resistance material.

[0026] The subject of the present invention may be a controller in a non-combustion heating vaping kit.

[0027] In the embodiments of the present invention, the conventional heating element is generally made of a magnetic material such as alloys, and thus generates heat under the action of a magnetic field of a coil. In the present invention, in the process of producing the heating element, in addition to the magnetic material, the heating element further includes a current-induction resistance material such as manganese bronze. It should be noted that the material for producing the conventional heating element is selected as a solid that can generate an eddy current under the action of a magnetic field. The heating element has a Curie temperature characteristic, that is, the temperature quickly rises to the Curie temperature and is difficult to control, the heating element is formed as a paramagnetic after the Curie temperature, and the temperature rises relatively smoothly and is easy to control. Therefore, in order to match the temperature reached by the heating element with the actual heating requirement, the Curie temperature of the heating element is generally close to the normal actual heating temperature of the vaping kit, the heating element located in the cigarette is generally made of alloy, and the Curie temperature is adjusted by the ratio of different materials in the alloy. The metal material in the current-induction resistance material can also serve as the material for making the alloy, and thus it is quite feasible to add the current-induction resistance material to the heating element. As long as the final adjustable Curie temperature is suitable, this method does not affect the electromagnetic heating process of the heating element.

[0028] For example, as shown in Fig. 2, the heating element used in the present invention may be a ferrite with a negative temperature coefficient of resistance on the surface of the metal to be heated, so that the material has a zero temperature coefficient of resistance in the low temperature range, i.e., the resistance does not change depending on the temperature. The ferrite has a Curie temperature in the range of 200°C to 300°C and has high temperature protection and chemical protection on the metal to be heated. When the heating temperature reaches the Curie temperature of the ferrite, the ferrite decreases in magnetism and heating efficiency, causing an increase in the inductor current. The calibration temperature is recognized by the inductor current increase signal. As the temperature continues to rise, the increase in the metal resistance predominates, and thus the overall resistance increases. In addition, temperature control and temperature recognition are achieved using the TCR.

[0029] Specifically, after a cigarette intended for smoking is inserted into the combustion-free heating vaping kit, the controller may obtain information about parameters of a heating element in the cigarette intended for smoking by recognizing a two-dimensional code on the cigarette intended for smoking or by another method, thereby determining a Curie temperature of the heating element and a temperature coefficient of resistance of a current-inductive resistance material added to the heating element.

[0030] In step S102, a first magnetic field strength corresponding to the Curie temperature is calculated, and a current value flowing through the coil inside the vaping kit is adjusted so that it is equal to the first current value, in order to control the magnetic field strength generated by the coil so that it is constant at the level of the first magnetic field strength.

[0031] In an embodiment of the present invention, since the coil inside the vaping kit has a constant number of turns and a constant thickness, the magnetic field strength generated by the coil can be determined based on the current flowing through the coil, thereby determining the heat generated by the heated object in the magnetic field. This correspondence can be determined by experimental modeling and other methods when designing the vaping kit. Therefore, after the Curie temperature of the heating element is determined, and the Curie temperature serves as the temperature generated by the heating element for normal heating operation of the vaping kit, so that the first magnetic field strength for heating the heating element to the Curie temperature can be calculated to determine the first current value corresponding to the first magnetic field strength. The magnitude of the current flowing through the coil is adjusted so that it is equal to the first magnitude of the current, so that the magnetic field strength generated by the coil is constant at the level of the first magnetic field strength, ensuring that the temperature of the heating element is maintained at the Curie temperature.

[0032] In one embodiment, the first magnetic field strength corresponding to the Curie temperature is calculated as follows: determining, in the case where at least two Curie temperatures exist, the Curie temperature with the lowest temperature as the first Curie temperature, and calculating the first magnetic field strength corresponding to the first Curie temperature; and determining, in the case where only one Curie temperature exists, the Curie temperature as the first Curie temperature and calculating the first magnetic field strength corresponding to the first Curie temperature.

[0033] In an embodiment of the present invention, a cigarette intended for smoking may include more than one heating element, different parts of the cigarette must be heated at different temperatures, and thus different heating elements in the same cigarette differ in material composition, i.e. the heating elements differ in Curie temperature. In this case, generating heat only by a magnetic field may create a new problem, i.e. as the magnetic field changes, different heating elements change in temperature and differ in the amplitude of the change, which further affects the accuracy of temperature control by the magnetic field strength. The prior art proposes the following solution. Magnetic field coils of different number and thickness are arranged in different positions of the vaping kit to change the magnetic field strength at different positions. Thus, it is necessary to manufacture magnetic field coils with different characteristics, respectively, the devices are expensive, and the problem that the temperature is roughly controlled in a range by heating by the magnetic field of the coil cannot be solved. In addition, the devices have a relatively narrow scope of application, and the accuracy of temperature control cannot be guaranteed when changing the cigarette intended for smoking.

[0034] In particular, in the present invention, the temperature control does not depend on the magnetic field strength, the heating element is preheated only by the magnetic field strength, and then the temperature control is performed by the TCR. Different heating elements differ slightly in the Curie temperature. Therefore, in the case where two or more Curie temperatures exist, i.e. two or more different heating elements are turned on, the Curie temperature with the lowest temperature among the two or more Curie temperatures is determined as the first Curie temperature, and the first magnetic field strength corresponding to the first Curie temperature is used for heating. When the heating element is heated to the first Curie temperature, the temperature control can be further performed by the TCR on another heating element that has not reached the corresponding Curie temperature. In the case where only one Curie temperature exists, the Curie temperature is directly determined as the first Curie temperature for calculation.

[0035] In step S103, a temperature control command is received, a desired temperature corresponding to the temperature control command is determined, a second current value is calculated based on the desired temperature and the temperature coefficient of resistance, and the current value flowing through the heating element is controlled so that it is equal to the second current value.

[0036] In an embodiment of the present invention, the temperature control command can be understood as a command generated in response to a control operation performed by the user by pressing a button or by other means on the heating temperature inside the vaping kit.

[0037] In an embodiment of the present invention, different users have different requirements for heating the cigarette. Some users want to have a higher heating temperature in order to accelerate the formation of aerosol and improve the vaping experience every time. The temperature control command is generated in response to an operation of the user to adjust the heating temperature of the vaping kit. When receiving the temperature control command, the controller determines a desired temperature to be adjusted by analyzing the temperature control command, calculates a second current value based on the desired temperature and the temperature coefficient of resistance corresponding to the heating element, and adjusts the current value flowing through the heating element so that it is equal to the second current value in order to control the resistance of the current-inductive resistance material, thereby achieving regulation of the TCR temperature on the heating element by changing the resistance. Using the magnetic field of the coil, the heating element can be roughly heated to a certain temperature range, and precise temperature control is impossible. Only the Curie temperature can be accurately determined. Therefore, in the present invention, the heating element is heated to the Curie temperature by electromagnetic heating, and then the TCR temperature control is performed on the heating element by the temperature coefficient of resistance. Since the temperature coefficient of resistance is determined, that is, the relationship between resistance and temperature is determined, the accuracy of temperature control can be achieved in this way. In addition, the heating element is heated by regulating the TCR temperature only from the Curie temperature, that is, the temperature range to be regulated is small, and the required current is also small, which avoids the problem that the temperature is regulated so that it increases by several hundred degrees only by TCR, which affects the matrix for forming a local aerosol by subjecting it to excessive current in the traditional heating method.

[0038] A heating element in a cigarette intended for smoking may be formed in a cross-sectional shape such that the heating element is adjacent to and directly contacts an inner wall of a vaping kit, thereby directly contacting circuits located on the inner wall of the vaping kit, facilitating connection of the heating element to a power source of the vaping kit.

[0039] In one embodiment, the second current value is calculated based on the desired temperature and the temperature coefficient of resistance by: calculating a first temperature difference between the desired temperature and the first Curie temperature; and calculating the second current value based on the first temperature difference and the temperature coefficient of resistance.

[0040] In an embodiment of the present invention, the desired temperature set by the user is the actual heating temperature desired by the user. In the TCR heating mode, heating is performed only by the difference between the first Curie temperature and the desired temperature. Therefore, the first temperature difference is first calculated before the second current value is calculated, and then the resistance value to be changed is calculated from the first temperature difference and the temperature coefficient of resistance to determine the second current value.

[0041] In one embodiment, after the magnitude of the current flowing through the coil inside the vaping kit is adjusted so that it is equal to the first magnitude of the current, in order to control the strength of the magnetic field generated by the coil so that it is constant at the level of the first strength of the magnetic field, the method further includes: determining, in case at least two Curie temperatures exist, a second Curie temperature and calculating a second temperature difference between the second Curie temperature and the first Curie temperature, where the second Curie temperature is a Curie temperature different from the first Curie temperature; and calculating the magnitude of the third current based on the temperature coefficient of resistance corresponding to the second Curie temperature and the second temperature difference, and adjusting the magnitude of the current flowing through the second heating element so that it is equal to the magnitude of the third current. The heating element includes a first heating element and a second heating element. The first heating element corresponds to the first Curie temperature. The second heating element corresponds to the second Curie temperature.

[0042] In an embodiment of the present invention, for multiple heating elements, only the heating element with the lowest Curie temperature is heated to the Curie temperature in the above heating step, while the remaining heating elements are not heated to the corresponding Curie temperatures. From the above description, it is clear that when designing a heating element, the Curie temperature is the operating temperature of the heating element expected by the designer, which is the expected heating temperature of the heating element during normal smoking of a cigarette. Therefore, the remaining heating elements must be heated to the corresponding Curie temperatures by adjusting the TCR temperature.

[0043] In particular, in the case where there are two or more Curie temperatures, the first Curie temperature is excluded from the obtained Curie temperatures to obtain second Curie temperatures. For each of the second Curie temperatures, the difference between the second Curie temperature and the first Curie temperature is calculated, i.e., it is determined how much higher the temperature of each of the heating elements that must be heated to reach the second Curie temperature is. After determining all the second temperature differences, the magnitude of the third current is calculated based on the second temperature differences, and the magnitude of the current flowing through the second heating element is adjusted so that it is equal to the magnitude of the third current, so that all of the heating elements can reach the corresponding Curie temperatures in the initial state without adjusting the temperature.

[0044] In one embodiment, the second current value is calculated based on the first temperature difference and the temperature coefficient of resistance by: calculating the second current value based on the first temperature difference and the temperature coefficient of resistance in the case where the heating element is the first heating element; and determining the actual temperature difference based on the first temperature difference and the second temperature difference and calculating the second current value based on the actual temperature difference and the temperature coefficient of resistance in the case where the heating element is the second heating element.

[0045] In an embodiment of the present invention, for the second heating element, a current with a second current value is supplied to the second heating element in order to reach the Curie temperature corresponding to the second heating element. Therefore, when the temperature control is performed on the second heating element, the actual temperature difference is determined based on the first temperature difference and the second temperature difference, and the second current value is calculated based on the actual temperature difference and the temperature coefficient of resistance in order to ensure the accuracy of the temperature control. For the first heating element, since no additional current is supplied to the first heating element, the second current value is calculated directly based on the first temperature difference.

[0046] In one embodiment, a temperature control command is received and a desired temperature corresponding to the temperature control command is determined by receiving the temperature control command, determining desired temperatures corresponding to the temperature control command, and determining a target heating element corresponding to the desired temperature.

[0047] In an embodiment of the present invention, for a cigarette including multiple heating elements, temperature control may be performed on each of the heating elements individually. Specifically, when receiving a temperature control command, in addition to determining the required temperatures, the controller further determines a target heating element corresponding to each of the required temperatures from the temperature control command, thereby achieving temperature control for multiple heating elements.

[0048] A temperature control device for a magnetic heating element according to embodiments of the present invention is described in detail below with reference to Fig. 3. It should be noted that the temperature control device for a magnetic heating element shown in Fig. 3 is configured to perform the method according to the embodiment shown in Fig. 1 of the present invention, and only those parts thereof that relate to the embodiment of the present invention are shown for illustration. For specific technical details not disclosed, reference should be made to the embodiment shown in Fig. 1 according to the present disclosure.

[0049] Referring to Fig. 3, which is a schematic structural diagram of a temperature control equipment for a heating element with magnetic heating according to an embodiment of the present invention. As shown in Fig. 3, the equipment includes: an obtaining module 301, a calculating module 302, and a receiving module 303.

[0050] The obtaining module 301 is configured to obtain information about the parameters of at least one heating element in a cigarette intended for smoking. The at least one heating element includes a current-inductive resistance material. The information about the parameters includes a Curie temperature of the heating element and a temperature coefficient of resistance of the current-inductive resistance material.

[0051] The calculation module 302 is configured to calculate a first magnetic field strength corresponding to the Curie temperature and control a current value flowing through the coil inside the vaping kit so that it is equal to the first current value, in order to control the magnetic field strength generated by the coil so that it is constant at the level of the first magnetic field strength.

[0052] The receiving module 303 is configured to receive a temperature control command, determine a desired temperature corresponding to the temperature control command, calculate a second current value based on the desired temperature and a temperature coefficient of resistance, and control a current value flowing through the heating element so that it is equal to the second current value.

[0053] In one embodiment, the calculation module 302 includes a first temperature determination unit and a second temperature determination unit.

[0054] The first temperature determination unit is configured to determine, in the case where at least two Curie temperatures exist, the Curie temperatures with the lowest temperature as the first Curie temperature and calculate a first magnetic field strength corresponding to the first Curie temperature.

[0055] The second temperature determination unit is configured to determine, in a case where only one Curie temperature exists, the Curie temperature as a first Curie temperature and calculate a first magnetic field strength corresponding to the first Curie temperature.

[0056] In one embodiment, the receiving module 303 includes a first computing unit and a second computing unit.

[0057] The first computing unit is configured to calculate a first temperature difference between the desired temperature and the first Curie temperature.

[0058] The second computing unit is configured to calculate a second current value based on the first temperature difference and the temperature coefficient of resistance.

[0059] In one embodiment, the second temperature determination unit includes a first computing element and a second computing element.

[0060] The first computing element is configured to determine, in the case where at least two Curie temperatures exist, a second Curie temperature and to calculate a second temperature difference between the second Curie temperature and the first Curie temperature. The second Curie temperature is a Curie temperature different from the first Curie temperature.

[0061] The second computing element is configured to calculate the magnitude of the third current based on the temperature coefficient of resistance corresponding to the second Curie temperature and the second temperature difference, and to control the magnitude of the current flowing through the second heating element so that it is equal to the magnitude of the third current. The heating element includes a first heating element and a second heating element, the first heating element corresponds to the first Curie temperature, and the second heating element corresponds to the second Curie temperature.

[0062] In one embodiment, the receiving module 303 further includes a first processing unit and a second processing unit.

[0063] The first processing unit is configured to calculate a second current value based on the first temperature difference and the temperature coefficient of resistance in case the heating element is the first heating element.

[0064] The second processing unit is configured to determine an actual temperature difference based on the first temperature difference and the second temperature difference and calculate a second current value based on the actual temperature difference and the temperature coefficient of resistance in the event that the heating element is the second heating element.

[0065] In one embodiment, the receiving module 303 further includes a receiving unit.

[0066] The receiving unit is configured to receive a temperature control command, determine a desired temperature corresponding to the temperature control command, and determine a target heating element corresponding to the desired temperature.

[0067] Those skilled in the art may clearly understand that the technical solutions of the embodiments of the present disclosure may be implemented by software and/or hardware. "Block" and "module" in this specification mean software and/or hardware that can independently completely execute or interact with other components to completely execute specific functions, where the hardware may, for example, be a field programmable gate array (FPGA) or an integrated circuit (IC).

[0068] Each block and/or processing module in an embodiment of the present disclosure may be implemented by analog circuitry to implement the functions described in the embodiments of the present disclosure, or may be implemented by software to perform the functions described in the embodiments of the present disclosure.

[0069] Refer to Fig. 4, which is a schematic block diagram of an electronic device according to an embodiment of the present disclosure. The device may be used to implement the method in the embodiment shown in Fig. 1. As shown in Fig. 4, the electronic device 400 may include: at least one central processor 401, at least one network interface 404, a user interface 403, a memory 405, and at least one communication bus 402.

[0070] The communication bus 402 is used to implement connection and communication between modules.

[0071] The user interface 403 may include a display screen (Display) and a camera (Camera). In one embodiment, the user interface 403 may further include a standard wired interface and a wireless interface.

[0072] In one embodiment, the network interface 404 may include a standard wired interface and a wireless interface (e.g., a WI-FI interface).

[0073] The central processor 401 may include one or more processing cores. The central processor 401 connects various parts in the electronic device 400 by using various interfaces and lines and performs various functions of the terminal 400 and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 405 and calling up data stored in the memory 405. In an embodiment, the central processor 401 may be implemented by at least one hardware method selected from digital signal processing (DSP), a field programmable gate array (FPGA) and a programmable logic array (PLA). The central processor 401 may integrate one or a combination of a central processing unit (CPU), a graphic central processing unit (GPU), a modem, and the like. The CPU mainly processes an operating system, a user interface, application programs, and the like; the GPU is used to render and draw content displayed on the display screen; the modem is used to process wireless communications. It should be understood that the above modem may not be integrated into the central processor 401, but may be implemented as a separate microcircuit.

[0074] The memory device 405 may include a random access memory (RAM) or may include a read-only memory. In an embodiment, the memory device 405 includes a non-volatile computer-readable storage medium. The memory device 405 may be used to store instructions, programs, codes, sets of codes, or sets of instructions. The memory device 405 may include a program storage area and a data storage area, where the program storage area may store instructions for implementing an operating system, instructions for at least one function (e.g., a touch function, a sound reproduction function, an image reproduction function, etc.) and instructions for implementing the embodiments of the method described above; the data storage area may store data, etc., provided in the embodiments of the method described above. In an embodiment, the memory device 405 may be at least one data storage device located separately from the above-mentioned central processor 401. As shown in Fig. 4, the memory device 405 as a computer storage medium may include an operating system, a network communication module, a user interface module and a program instruction.

[0075] In the electronic device 400 shown in Fig. 4, the user interface 403 is mainly used to provide the user with an input interface for receiving data input by the user; and the central processor 401 can be used to call the temperature control application program for the magnetic heating element, which is stored in the memory 405, to perform the following operations:

obtaining information about the parameters of at least one heating element in a cigarette intended for smoking, where said at least one heating element includes a current-inductive resistance material, and the information about the parameters includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current-inductive resistance material;

calculating a first magnetic field strength corresponding to the Curie temperature and controlling the magnitude of the current flowing through the coil within the vaping kit until the first current value is reached in order to maintain the magnetic field strength generated by the coil constant at the first magnetic field strength; and

receiving a temperature control command, determining a desired temperature corresponding to the temperature control command, calculating a second current value based on the desired temperature and a temperature coefficient of resistance, and controlling the current value flowing through the heating element until the second current value is reached.

[0076] According to the present invention, a computer-readable storage medium is further provided. The computer-readable storage medium stores a computer program, where the computer program, when executed by a processor, performs the steps of the method described above. The computer-readable storage medium may include, but is not limited to, any type of disk, including a floppy disk, an optical disk, a DVD, a CD-ROM, a microdrive, a magneto-optical disk, ROM, RAM, EPROM, EEPROM, DRAM, VRAM, a flash memory device, a magnetic card or an optical card, a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and/or data.

[0077] It should be noted that for the above embodiments of the method, for simplicity of description, they are expressed as a sequence of combinations of actions, but those skilled in the art should know that the present disclosure is not limited by the described sequence of actions. Depending on the present disclosure, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments given in the description of the invention represent some preferred embodiments, and the provided actions and modules are not necessarily required by the present disclosure.

[0078] In the above embodiments, the descriptions of each embodiment have their own emphasis, and for parts not described in detail in one embodiment, reference should be made to the relevant descriptions of other embodiments.

[0079] In several embodiments presented in the present description, it should be understood that the disclosed equipment can be implemented in other ways. For example, the embodiments of the equipment described above are illustrative only. For example, the separation of the blocks is only a logical separation of functions. In an actual implementation, there may be other ways of separation. For example, several blocks or components can be combined or integrated into another system, or some features can be ignored or not implemented. Additionally, the shown or explained mutual communication or direct communication or communication connection can be carried out through some service interfaces, and indirect communication or communication connection of equipment or blocks can be carried out in electrical or other forms.

[0080] Blocks described as separate components may or may not be physically separate, and components shown as blocks may or may not be physical blocks, i.e., they may be located in one place or may be distributed across several network blocks. Some or all of the blocks may be selected according to actual need to achieve the solution objective of the embodiments.

[0081] In addition, each functional block in each embodiment of the present disclosure may be integrated into one processing block, each block may exist separately physically, or two or more blocks may be integrated into one block. The integrated blocks described above may be implemented in the form of hardware or in the form of a software functional block.

[0082] If the integrated block is implemented in the form of a software functional block and sold or used as an independent product, the integrated block may be stored in a computer-readable memory. Based on this understanding, the technical solutions of the embodiments of the present disclosure, essentially or a part that contributes to the conventional technology, or all or a part of the technical solutions may be implemented in the form of a software product. The computer program product is stored in the memory and includes several instructions so that a computer device (such as a personal computer, a server, or a network device) performs all or a part of the steps of the method described in the embodiments of the present disclosure. The above memory device includes: various media capable of storing program codes, such as a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0083] Those skilled in the art may understand that all or some of the steps in the various methods of the embodiments described above may be completely performed by a program instructing the associated hardware. The program may be stored in a computer-readable memory device, and the memory device may include: a flash memory disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, and the like.

[0084] The embodiments described above are merely some exemplary embodiments of the present disclosure and are not intended to limit the scope of the present disclosure. That is, all equivalent changes and modifications made in accordance with the teachings of the present disclosure still fall within the scope of the present disclosure. Embodiments of the present disclosure will become apparent to those skilled in the art upon examination of the description of the invention and practice of the disclosure herein. This application is intended to cover any variation, application or adaptation of the present disclosure. This variation, application or adaptation adheres to the general principles of the present disclosure and includes common knowledge or conventional techniques in the art not described in the present disclosure. The specifications and embodiments are to be considered exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims (28)

1. A method for controlling the temperature of a heating element with magnetic heating in a cigarette intended for smoking, comprising: obtaining information about the parameters of at least one heating element in a cigarette intended for smoking, wherein said at least one heating element comprises a current-inductive resistance material, and the information about the parameters includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current-inductive resistance material; calculating a first magnetic field strength corresponding to the Curie temperature and controlling the magnitude of the current flowing through the coil within the vaping kit until the first current value is reached in order to maintain the magnetic field strength generated by the coil constant at the first magnetic field strength; and receiving a temperature control command, determining a desired temperature corresponding to the temperature control command, calculating a second current value based on the desired temperature and a temperature coefficient of resistance, and controlling the current value flowing through the heating element until the second current value is reached. 2. The method according to claim 1, wherein the calculation of the first magnetic field strength corresponding to the Curie temperature includes: determining, in the case where at least two Curie temperatures exist, the Curie temperature with the lowest temperature as the first Curie temperature and calculating the first magnetic field strength corresponding to the first Curie temperature; and defining, in the case where there is only one Curie temperature, this Curie temperature as the first Curie temperature and calculating the first magnetic field strength corresponding to the first Curie temperature. 3. The method according to claim 2, wherein calculating the second current value based on the required temperature and the temperature coefficient of resistance includes: calculating the first temperature difference between the desired temperature and the first Curie temperature; and calculation of the second current value based on the first temperature difference and the temperature coefficient of resistance. 4. The method according to claim 3, wherein after controlling the magnitude of the current flowing through the coil inside the vaping kit until a first magnitude of the current is reached, in order to maintain the magnetic field strength generated by the coil constant at the level of the first magnetic field strength, wherein the method further includes: determining, in the case where at least two Curie temperatures exist, a second Curie temperature and calculating a second temperature difference between the second Curie temperature and the first Curie temperature, where the second Curie temperature is a Curie temperature different from the first Curie temperature; and calculating a third current value based on the temperature coefficient of resistance corresponding to the second Curie temperature and the second temperature difference, and controlling the current value flowing through the second heating element to the value of the third current value, where the heating element includes a first heating element and a second heating element, the first heating element corresponds to the first Curie temperature, and the second heating element corresponds to the second Curie temperature. 5. The method according to claim 4, wherein calculating the second current value based on the first temperature difference and the temperature coefficient of resistance includes: calculating, in the case where the heating element is a first heating element, a second current value based on the first temperature difference and the temperature coefficient of resistance; and determining, in the case where the heating element is a second heating element, an actual temperature difference based on the first temperature difference and the second temperature difference, and then calculating a second current value based on the actual temperature difference and the temperature coefficient of resistance. 6. The method according to claim 1, wherein receiving a temperature control command and determining a desired temperature corresponding to the temperature control command includes: receiving a temperature control command, determining a desired temperature corresponding to the temperature control command, and determining a target heating element corresponding to the desired temperature. 7. A device for controlling the temperature of a heating element with magnetic heating in a cigarette intended for smoking, comprising: a receiving module configured to receive information about the parameters of at least one heating element in a cigarette intended for smoking, wherein said at least one heating element comprises a current-inductive resistance material, and the information about the parameters includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current-inductive resistance material; a calculation module configured to calculate a first magnetic field strength corresponding to the Curie temperature and control the magnitude of the current flowing through the coil inside the vaping kit until the first current value is reached in order to maintain the magnetic field strength generated by the coil constant at the level of the first magnetic field strength; and a receiving module configured to receive a temperature control command, determine a desired temperature corresponding to the temperature control command, calculate a second current value based on the desired temperature and the temperature coefficient of resistance, and control the current value flowing through the heating element until the second current value is reached. 8. An electronic device for a cigarette intended for smoking, comprising: storage device; processor; and a computer program stored in a storage device and executed by a processor; wherein the processor, when executing the computer program, carries out the method according to any of paragraphs 1-6. 9. A machine-readable data storage medium for a cigarette intended for smoking, storing a computer program, wherein the computer program, when executed by a processor, instructs the processor to carry out the method according to any one of paragraphs 1-6.