Method and system for induction heating

Abstract

To provide a method and system for induction heating.SOLUTION: A system may provide a first induction coil 125 wrapped around a metal cylinder and a second induction coil 130 wrapped around the metal cylinder. The first induction coil may carry a current in a first direction and the second induction coil may carry a current in an opposite, second direction. The currents may be generated in an alternating sequence.SELECTED DRAWING: Figure 1

Description

Background Art

[0001] Many electronic devices use a battery, such as a lithium-ion battery, to provide a primary power source to the electronic device. In some applications, such as electronic cigarettes (also referred to as vaping devices, e-cigarettes, vape pens, nicotine evaporators, hybrid e-cigarettes, and real tobacco e-smokes), the battery powers a heating element that is used to heat a liquid or dry tobacco to generate vapor. Some conventional systems use a heater to indirectly heat a final target (often a metal cylinder). However, indirect heating methods can require an undesired amount of time to heat to the desired temperature, and increasing the temperature at a faster rate requires an increase in power consumption. It may be desirable to directly heat the final target using induction heating with a minimal circuit network. 電池は、液体又は乾燥タバコを加熱して蒸気を生成するために使用される加熱素子に給電する。いくつかの従来のシステムは、加熱器を使用して、最終目標(多くの場合、金属シリンダ)を間接的に加熱する。しかしながら、間接加熱方法は、所望の温度まで加熱するのに望ましくない時間を要し得、より速い速度で温度を上昇させることは、電力消費の増加を必要とする。最小回路網を有する誘導加熱を使うことが所望され得る。 ペン、ニコチン蒸発器、ハイブリッドeシガレット、及びリアルタバコeスモークとも称される)などのいくつかの用途では、電池は、液体又は乾燥タバコを加熱して蒸気を生成するために使用される加熱素子に給電する。いくつかの従来のシステムは、加熱器を使用して、最終目標(多くの場合、金属シリンダ)を間接的に加熱する。しかしながら、間接加熱方法は、所望の温度まで加熱するのに望ましくない時間を要し得、より速い速度で温度を上昇させることは、電力消費の増加を必要とする。最小回路網を有する誘導加熱を使うことが所望され得る。 される)などのいくつかの用途では、電池は、液体又は乾燥タバコを加熱して蒸気を生成するために使用される加熱素子に給電する。いくつかの従来のシステムは、加熱器を使用して、最終目標(多くの場合、金属シリンダ)を間接的に加熱する。しかしながら、間接加熱方法は、所望の温度まで加熱するのに望ましくない時間を要し得、より速い速度で温度を上昇させることは、電力消費の増加を必要とする。最小回路網を有する誘導加熱を使うことが所望され得る。 するために使用される加熱素子に給電する。いくつかの従来のシステムは、加熱器を使用して、最終目標(多くの場合、金属シリンダ)を間接的に加熱する。しかしながら、間接加熱方法は、所望の温度まで加熱するのに望ましくない時間を要し得、より速い速度で温度を上昇させることは、電力消費の増加を必要とする。最小回路網を有する誘導加熱を使うことが所望され得る。 して、最終目標(多くの場合、金属シリンダ)を間接的に加熱する。しかしながら、間接加熱方法は、所望の温度まで加熱するのに望ましくない時間を要し得、より速い速度で温度を上昇させることは、電力消費の増加を必要とする。最小回路網を有する誘導加熱を使うことが所望され得る。 加熱方法は、所望の温度まで加熱するのに望ましくない時間を要し得、より速い速度で温 度を上昇させることは、電力消費の増加を必要とする。最小回路網を有する誘導加熱を使 用して、最終目標を直接加熱することが所望され得る。

Summary of the Invention

[0002] Various embodiments of the present technology provide methods and systems for induction heating. The system may provide a first induction coil wound around a metal cylinder and a second induction coil wound around the metal cylinder. The first induction coil may carry a current in a first direction, and the second induction coil may carry a current in an opposite second direction. The current may be generated in an alternating current arrangement. は、金属シリンダの周りに巻き付けられた第1の誘導コイルと、金属シリンダの周りに巻 き付けられた第2の誘導コイルとを提供し得る。第1の誘導コイルは、第1の方向に電流 を流し得、第2の誘導コイルは、反対の第2の方向に電流を流し得る。電流は、交流配列 で発生され得る。

Brief Description of the Drawings

[0003] A more complete understanding of the present technology can be derived by considering the following exemplary figures in conjunction with the detailed description. In the following figures, like reference numbers refer to similar elements and steps throughout the drawings. を参照することによって導出され得る。以下の図では、同様の参照番号は、図面全体を通 [[ID=​

[0004] [Figure 1] A representative induction heating system according to an exemplary embodiment of this technology is shown.

[0005] [Figure 2] This is a flowchart for operating the system according to an exemplary embodiment of this technology.

[0006] [Figure 3] The operating states of the pulse signals corresponding to the first switch and the second switch, according to an exemplary embodiment of this technology, are illustrated.

[0007] [Figure 4] This graph illustrates the relationship between the battery voltage and the relative charge state of the battery, according to an exemplary embodiment of this technology.

[0008] [Figure 5] This graph illustrates the relationship between the pulse period of the operating state and the relative charge state of the battery, according to an exemplary embodiment of this technology.

[0009] [Figure 6] This is a block diagram of a control circuit according to an exemplary embodiment of the present technology. [Modes for carrying out the invention]

[0010] This technology can be described in relation to functional block components and various processing steps. A functional block is an arbitrary block configured to perform a specific function and achieve various results. It can be realized by a number of constituent elements. For example, this technology can perform various functions, Heating elements, signal and pulse generators, voltage sensors, current sensors, Coulomb counters, logic Semiconductor devices such as gates, memory devices, transistors, and capacitors are used. It can be used. In addition, this technology can be implemented with any number of systems , and the systems described are merely exemplary applications for this technology. Furthermore, this technology can employ any number of conventional technologies for measuring voltage, measuring current, calculating battery capacity, performing various mathematical calculations, storing data, etc. .

[0011] Methods and apparatuses for dielectric heating according to various aspects of this technology can operate with any suitable electronic systems and / or devices such as home appliances, portable devices, battery-powered heating devices, etc. Referring to FIG. 1, an exemplary system 100 can include a heating element 103 powered by a rechargeable battery 115 and a control circuit 105 for controlling the amount of power supplied to the heating element 103. In one application, the system 100 can be incorporated into various electronic cigarettes, such as an electronic cigarette used to heat a cartridge containing a liquid (i.e., a vapor cartridge), and a hybrid electronic cigarette used to heat dry tobacco leaves or conventional cigarettes. In various embodiments, the system 100 can further include a sensor 192 for detecting when a user applies a suction force (i.e., a puff) to the electronic cigarette, which activates the control circuit 105 and / or the heating element 10 3. In one application, the system 100 can be incorporated into various electronic cigarettes, such as an electronic cigarette used to heat a cartridge containing a liquid (i.e., a vapor cartridge), and a hybrid electronic cigarette used to heat dry tobacco leaves or conventional cigarettes. In various embodiments, the system 100 can further include a sensor 192 for detecting when a user applies a suction force (i.e., a puff) to the electronic cigarette, which activates the control circuit 105 and / or the heating element 10 3. In various embodiments, the system 100 can further include a sensor 192 for detecting when a user applies a suction force (i.e., a puff) to the electronic cigarette, which activates the control circuit 105 and / or the heating element 10 3. 3. 3.

[0012] The battery 115 supplies power to other components within the system 100, such as the heating element 103 and / or the control circuit 105. The battery 115 can include a rechargeable battery such as a rechargeable lithium-ion battery. Alternatively, the battery 115 can be a nickel-metal hydride battery, nickel metal hydride battery, nickel metal hydride battery, nickel It may include a lithium-ion battery such as a lithium-cadmium battery, or a lithium-based battery such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery. It may include a lithium-based battery such as a lithium-cadmium battery, or a lithium-based battery such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery.

[0013] The heating element 103 may be configured as an induction heater including a hollow container 120 surrounded by a first induction coil 125 and a second induction coil 130. The container 120 may be formed of a magnetic material, for example, a carbon steel alloy, or any other alloy steel. In an exemplary embodiment, the container 120 may be in a cylindrical shape having a first end 180 and an opposite second end 185. The container 120 may be further adapted to hold or contain substances such as dried tobacco, conventional cigarettes, or vapor cartridges. The heating element 103 may be configured as an induction heater including a hollow container 120 surrounded by a first induction coil 125 and a second induction coil 130. The container 120 may be formed of a magnetic material, for example, a carbon steel alloy, or any other alloy steel. In an exemplary embodiment, the container 120 may be in a cylindrical shape having a first end 180 and an opposite second end 185. The container 120 may be further adapted to hold or contain substances such as dried tobacco, conventional cigarettes, or vapor cartridges. The heating element 103 may be configured as an induction heater including a hollow container 120 surrounded by a first induction coil 125 and a second induction coil 130. The container 120 may be formed of a magnetic material, for example, a carbon steel alloy, or any other alloy steel. In an exemplary embodiment, the container 120 may be in a cylindrical shape having a first end 180 and an opposite second end 185. The container 120 may be further adapted to hold or contain substances such as dried tobacco, conventional cigarettes, or vapor cartridges.

[0014] The first induction coil 125 may include a first end 160 and a second end 165. The first induction coil 125 may be wound around the outer wall of the container 120 to form a helical shape along the length of the container 120. Similarly, the second induction coil 130 may include a first end 170 and a second end 175. The second induction coil 130 may be wound around the outer wall of the container 120 to form a helical shape along the length of the container 120. In various embodiments, each induction coil 125, 130 operates independently of each other. The first induction coil 125 may include a first end 160 and a second end ********************** a second end 175. The second induction coil 130 may be wound around the outer wall of the container 120 to form a helical shape along the length of the container 120. In various embodiments, each induction coil 125, 130 operates independently of each other. The first induction coil 125 may include a first end 160 and a second end 165. The first induction coil ********** a second end 175. The second induction coil 130 may be wound around the outer wall of the container 120 to form a helical shape along the length of the container 120. In various embodiments, each induction coil 125, 130 operates independently of each other.

[0015] According to an exemplary embodiment, the first end 160 of the first induction coil 125 may be connected to the positive terminal (+) of the battery 115, and the second end 165 may be selectively connected to a reference voltage such as a ground potential via the first switch 145. In addition, the second end 175 of the second induction coil 130 may be connected to the positive terminal (+) of the battery 115, and the first end 170 may be connected to the second a second end 175. The second induction coil 130 may be wound around the outer wall of the container 120 to form a helical shape along the length of the container 120. In various embodiments, each induction coil 125, 130 operates independently of each other. According to an exemplary embodiment, the first end 160 of the first induction coil 125 may be connected to the positive terminal (+) of the battery 115, and the second end 165 may be selectively connected to a reference voltage such as a ground potential via the first switch 145. In addition, the second end 175 of the second induction coil 130 may be connected to the positive terminal (+) of the battery 115, and the first end 170 may be connected to the second According to an exemplary embodiment, the first end 160 of the first induction coil 125 may be connected to the positive terminal (+) of the battery 115, and the second end 165 may be selectively connected to a reference voltage such as a ground potential via the first switch 145. In addition, the second end 175 of the second induction coil 130 may be connected to the positive terminal (+) of the battery 115, and the first end 170 may be connected to the second It can be selectively connected to a reference voltage via switch 140.

[0016] Alternatively, the first end 160 of the first induction coil 125 is connected to the negative terminal (-) of the battery 115. The second end 165 may be connected to the first switch 145, and the second end 165 is selectively switched to a positive voltage potential. It can be connected to the second end 175 of the second induction coil 130. The first end 170 may be connected to the negative terminal (-), and a positive voltage is applied via the second switch 140. It can be selectively connected to the potential.

[0017] In addition, system 100 ensures stable operation of the heating element 103 and / or the first induction co One for providing stable generation of current through the second induction coil 125 and 130 The above capacitors may be provided. For example, the first capacitor 155 is connected to the first induction coil 1 The first end 160 and the second end 165 of 25 may be connected. Similarly, the second con Densa 150 is located between the first end 170 and the second end 175 of the second induction coil 130. It can be connected to.

[0018] According to an exemplary embodiment, the control circuit 105 controls the first switch 145 and the second switch By applying a signal (or pulse) to the switch 140, the heating element 103 can be selectively moved. To cause this to happen. For example, the control circuit 105 selectively operates the first switch 145 to perform the first A first current I1 can be generated via the induction coil 125 or controlled in another way. Similarly, the control circuit 105 selectively operates the second switch 140 to activate the second induction A second current I2 can be generated via coil 130 or controlled by another means. Switches 140 and 145 respond to a signal and between two or more devices and / or a desired voltage It may include any device suitable for providing selective connection to an electric potential.

[0019] Each of the first switch 145 and the second switch 140 uses an electric field to control the device Examples of field-effect transistors (FETs) that control electrical behavior. It may include transistors. Many different implementations of field-effect transistors exist. Effect transistors generally exhibit very high input impedance at low frequencies. Therefore, this could be a desirable implementation.

[0020] Referring to Figures 1 and 6, the control circuit 105 receives various input signals from the sensor 192, etc. The functions of the battery 115 and the heating element 120 are controlled and / or managed according to various input signals. The control circuit 105 operates together with various components to provide the desired output and / or control signals. It may include an integrated circuit that includes circuits and / or systems. In addition, the control circuit 105 is It is connected to battery 115 and configured to measure various battery characteristics such as voltage, current, and temperature. It is possible.

[0021] According to an exemplary embodiment, the control circuit 105 controls the voltage sensor 198 and the on / off control cycle. Path 182, Logic circuit 191, Memory 194, Pulse generator 190, Pulse controller 1 97, a timer 193, a first driver 196, and a second driver 195 may be included, These work together to perform various functions of system 100 (for example, measuring the voltage of battery 115). To determine, calculate the relative charge state of battery 115, and determine the desired pulse period. Controlling power to the heating element 103, etc., or controlling it by other means The control circuit 105 may be formed as an integrated circuit on a single chip, or on multiple chips. It can be accumulated across multiple points.

[0022] The on / off control circuit 182 determines whether the user has removed the "rev" from the electronic cigarette lighter. It may respond to a signal from sensor 192 indicating that. In such a case, the on / off control circuit 1 82 can generate one or more activation signals to initiate various operations, such as on / off. The control circuit 182 sends a start signal to the logic circuit 191, and the logic circuit 191 and / or The operation of Immer 193 can be activated, and the operation of Timer 193 can be activated. On / Off control cycle The path 182 acts as an interface between the sensor 192 and the control circuit 105, and controls Any circuit and / or device suitable for activating other components within circuit 105 may be provided. Yes, it is possible.

[0023] The voltage sensor 198 detects and / or measures the voltage of the battery 115. For example, the voltage sensor The 198 can be connected to the positive terminal of the battery 115 and measures the voltage based on a conventional voltage divider. It may be equipped with a voltage sensor. The voltage sensor 198 may also be connected to the logic circuit 191 and battery 1 It may be configured to provide the 15 measurement voltages to the logic circuit 191. Alternatively, or in addition The voltage sensor 198 can transmit the measured voltage to the memory 194.

[0024] The logic circuit 191 performs various calculations and determines the desired timing for operating the heating element 103. It may be configured to determine the timing. For example, the logic circuit 191 is relative to the battery 115. Determine the relative state of charge (RSOC), and based on the RSOC, It can be configured to select the Luth period.

[0025] According to an exemplary embodiment, the logic circuit 191 is connected to the on / off control circuit 182. , it can respond to a startup signal. For example, logic circuit 191 can respond to a startup signal. It can then be configured to perform a series of steps.

[0026] In addition, the logic circuit 191 may be communicating with the memory 194. For example, the logic circuit Route 191 delivers data to memory 194 and / or retrieves data from memory 194. It is possible. In an exemplary embodiment, the logic circuit 191 receives data stored in the memory 194. This can be used to perform calculations and / or make decisions regarding the operation of the heating element 103.

[0027] Memory 194 may be accessible to the logic circuit 191, and various data points and / or It can be configured to store a set of data. In an exemplary embodiment, memory 194 is Note the battery voltage value and the corresponding RSOC value for each voltage value (such as the data shown in Figure 4). It can be remembered. For example, memory 194 is a suitable look for storing relational data. The battery voltage and RSOC values ​​are recorded in an uptable or any other storage solution. It can be remembered. In addition, memory 194 stores the RSOC value and the corresponding program for each RSOC value. It can store the relay period (such as the data shown in Figure 5). For example, memory 194 can store relay A lookup table or other storage solution suitable for storing personal data The RSOC value and pulse period can be stored internally.

[0028] In an exemplary embodiment, memory 194 shows the relationship between the RSOC value and the pulse period. Multiple sets of data can be stored, and each set of data is associated with the heating element 103 (and the corresponding target). It is specific to the temperature of the power. For example, when the heating element 103 is in its initial state, the temperature and / or when the power is at its initial value, the first set of data may be used. The second set of data The combination can be used after the heating element 103 has been operated, and the temperature of the heating element 103 is the same as the initial state. It's higher than the middle.

[0029] The pulse generator 190 can respond to the logic circuit 191, and a first pulse signal and a second pulse It may be configured to generate an output that can be represented as a pulse signal, and the first and second pulse signals are , non-superimposed pulses. For example, pulse generator 190 generates a first pulse signal and a second pulse It can generate an AC pulse waveform that can be divided into a thrust signal. Alternatively, pulse generator 190 , it can generate two separate pulse signals. The pulse generator 190 generates AC pulse signals It may be equipped with any circuit and / or system suitable for doing so, the pulse period and / Alternatively, the duty cycle is controllable.

[0030] In one embodiment, the pulse generator 190 operates according to the signal (voltage) from the logic circuit 191. H-shaped transistors comprising a set of transistors that can be switched "on" and "off" in an AC arrangement. It may be equipped with a ridge circuit. The AC operating arrangement is the first output terminal and the second of the pulse generator 190. This results in an inverted state at the output terminal. For example, the polarity at the output terminal is reversed, and the positive The arrangement can be switched from positive to negative. Therefore, if one terminal is positive, the remaining terminals are negative. In this case, the first output terminal may generate a first pulse signal, and the second output terminal may generate a first pulse signal. This can generate a second pulse signal.

[0031] In various embodiments, the pulse generator 190 may also respond to the timer 193. The 193 may be configured to generate a count value, and the on / off control circuit 182 It can be activated. Timer 193 can send a count value to pulse generator 190, The rush generator 190 outputs a waveform (parallel) according to the signal and count value from the logic circuit 191. Then it generates the first and second pulse signals.

[0032] The first driver 196 is connected to the first output terminal of the pulse generator 190, and the first The thrust signal can be configured to be applied to the first switch 145. Similarly, the second dry B195 is connected to pulse generator 190, and the second pulse signal is transmitted to second switch 140 It can be configured to apply to the switch. Therefore, drivers 195 and 196 will then switch to the next They operate alternately. In other words, when one switch is on, the other switches It is off. Driver 195, 195 sends signals to loads such as switch 140, 145. It may include any circuit and / or device suitable for relaying and / or driving.

[0033] The pulse controller 197 may be connected to the pulse generator 190, and the first and second pulses It can be configured to prevent the superposition of S signals. The pulse controller 197 provides a delay. It may include any circuit and / or device suitable for doing so.

[0034] During operation, and referring to Figures 1-6, the control circuit 105 controls the first switch 1 in AC mode. 45 and the second switch 140 are activated, thereby the first induction coil 125 and Furthermore, alternating current and the opposite current can be generated through the second induction coil 130. In addition, the control circuit 105 controls the first switch 145 and according to the pulse period based on the battery voltage and RSOC. This can also activate the second switch 140.

[0035] In the example operation, the on / off control circuit 182, based on information from the sensor 192 The start condition can be triggered. For example, the on / off control circuit 182 can trigger the operation of the logic circuit 191. It can be started. When the logic circuit 191 is started, it takes the target power from memory 194 (200). The target power can be obtained. The target power is determined by the desired operating specifications and / or measured temperature of the system 100. and / or may be preset values ​​based on the operating specifications of the device incorporating System 100. Next, the logic circuit 191 can measure the voltage of the battery 115 (205). For example, The logic circuit 191 can measure voltage using the voltage sensor 198. Next, the logic circuit 19 1 can determine the RSOC of battery 115 (210). For example, logic circuit 191 is memo The RSOC value corresponding to the voltage measured from step 194 (from step 205) can be obtained. Example For example, referring to Figure 4, if the measured voltage is 3.8V, the corresponding RSOC is 70%. be.

[0036] Next, the logic circuit 191 is based on the RSOC value (such as that determined from step 210) The pulse period can then be determined (215). For example, referring to Figure 5, R from the previous step If the SOC is 70%, the corresponding pulse period is, for example, approximately 73 seconds, and if it is 50%, It has a duty cycle. As RSOC increases, the pulse period also increases, and vice versa. Similarly, RSOC and pulse period are directly proportional in this manner.

[0037] Next, the logic circuit 191 generates a corresponding signal (e.g., voltage or current), and the signal The pulses can then be transmitted to the pulse generator 190. The pulse generator 190 then processes the first and second pulses. It is possible to generate an output waveform including a pulse signal, and the first and second pulse signals are not superimposed, and each is Having a desired pulse period (as determined from step 215), the first pulse signal is first The second pulse signal is applied to the switch 145 and the second switch 140 respectively (2 20) Longer pulse periods result in lower frequency signals, while shorter pulses Period results in higher frequency signals. In an exemplary application, higher frequencies result in cigarettes. This brings about a higher temperature and lower frequency on the container 120 into which the tents or dry tobacco are inserted. The number leads to a lower temperature.

[0038] When switches 140 and 145 are switched on and off, each switch will These induction coils are connected to ground potential, and a current flow is generated through each induction coil. Since switches 140 and 145 are operated one after the other, the current flow is also generated one after the other. In addition, since the induction coils 125 and 130 are arranged in an inverted manner, the first current I1 is Current 1 flows in the direction of 1, and the second current I2 flows in the opposite direction of 2. Furthermore, the reverse within the induction coil... Paired currents generate opposite magnetic fluxes. The AC operation of induction coils 125 and 130 is stable. This can provide magnetic flux, efficient energy use, and rapid heating of the container 120.

[0039] In various embodiments, the logic circuit 191 responds to changes in the temperature of the heating element 103 during operation. Then, a new target power (230) can be obtained. Next, the logic circuit 191 will obtain a new target A new pulse period can be determined based on changes in standard power and / or temperature. For example, logic Circuit 191 can obtain a new pulse period from memory 194.

[0040] Periodically, while system 100 is operating, control circuit 105 changes the battery voltage (205 ) is measured periodically to determine the new RSOC(210) and the new pulse period(215). Determine the value and apply the pulse signal to switches 140, 145 (220) as described above. A stable temperature can be maintained for the heat element 103. For example, a battery with a higher voltage can be used in a cigarette lighter. It provides a higher temperature on the container 120 into which the lettuce or cigarette is inserted, and has a lower voltage. The battery provides a lower temperature. Therefore, the temperature of the heating element 103 is kept stable. To maintain this, system 100 follows the battery voltage (which has an inverse relationship with RSOC). This manages the frequency of the pulse signal. For example, if the battery voltage is high, system 100 , it may generate pulse signals with lower frequencies, and when the battery voltage is low, system 100 This can generate pulse signals with higher frequencies.

[0041] In the preceding description, the technology has been described with reference to specific exemplary embodiments. The specific implementations illustrated and described are illustrative of the technology and its best form, and in no event However, this is not intended to limit the scope of this technology in any other way. In fact, to make it concise... Therefore, conventional methods for manufacturing, connecting, preparing, and other functional aspects of the methods and systems will be described in detail. This may not always be the case. Furthermore, the connecting lines shown in various diagrams are illustrative of the connections between various elements. It is intended to represent functional relationships and / or processes. In practical systems, many Alternative or additional functional relationships or physical connections may exist.

[0042] This technology has been described with reference to specific exemplary embodiments. However, this technology Various modifications and changes can be made without deviating from the scope. The description and drawings are It should be considered illustrative, not restrictive, and all such modifications are not part of this technology. It is intended to be included within the scope. Therefore, the scope of the technology is not merely the specific implementation described above. Rather than by examples, by the general embodiments described and their legal equivalents, It should be determined. For example, the steps described in any embodiment of the method or process are Unless otherwise explicitly stated, the steps may be performed in any order, as presented in a particular embodiment. The order is not limited to the explicit order in which they are described. Furthermore, the components described in any embodiment of the device and The elements are assembled in various permutations to produce substantially the same results as in this technique. It may be configured to operate in a different way, and therefore, in a particular embodiment Not limited to the specific configurations described.

[0043] The benefits, advantages, and solutions to problems relating to specific embodiments have been described above. However, any benefit, advantage, solution to a problem, or any specific benefit, advantage, Any element that can produce or make a solution more prominent is important and necessary. It should not be interpreted as a required or essential feature or component.

[0044] The terms "comprises," "comprising," or any variation thereof are, This is intended to refer to non-exclusive inclusion, and therefore the process involves a list of elements. The method, article, composition, or apparatus may include not only the elements described, but also such parts. Processes, methods, articles, compositions, or apparatus are not expressly listed and are not specific to them. It may also include other elements not specifically mentioned. In addition to those used in the implementation of this technology Other combinations of the above-mentioned structures, arrangements, uses, proportions, elements, materials, or components and / or modifications shall be made without deviating from those general principles, or otherwise. The law may specifically adapt the product to certain environments, manufacturing specifications, design parameters, or other operating requirements.

[0045] This technology has been described above with reference to exemplary embodiments. However, the scope of this technology is limited. Changes and modifications to the exemplary embodiments may be made without departing from this. These and any other changes or modifications are included within the scope of the Technology as expressed in the following claims. That is the intention.

[0046] According to the first embodiment, the device for induction heating powered by a battery is located at the node A first induction coil having a first end connected to the terminals of a battery, and an electric current via a node A second induction coil having a second end connected to the battery terminal, and the battery terminal via a node. A second induction coil having a second end connected to the child, and the second end of the first induction coil A first switch device configured to selectively connect to a voltage potential, and a second A second switch is configured to selectively connect the first end of the induction coil to a voltage potential. It includes a touch device.

[0047] In one embodiment, the first induction coil and the second induction coil are located around a single magnetic cylinder. Wrapped around a magnetic cylinder, the magnetic cylinder comprises a first end and a second end.

[0048] In one embodiment, the first end of the first induction coil is directly connected to the first end of the magnetic cylinder. Adjacent to each other, the second end of the first induction coil is directly adjacent to the second end of the magnetic cylinder. Furthermore, the first end of the second induction coil is directly adjacent to the second end of the magnetic cylinder, and the second The second end of the induction coil is directly adjacent to the first end of the magnetic cylinder.

[0049] In one embodiment, the device is connected between the first end and the second end of the first induction coil. A first capacitor is connected between the first and second ends of the second induction coil. It further includes a second capacitor.

[0050] In one embodiment, the battery terminals are negative battery terminals, and the voltage potential is positive voltage potential.

[0051] In one embodiment, the battery terminals are positive battery terminals, and the voltage potential is the ground potential.

[0052] In one embodiment, the first induction coil generates a first current flowing in a first direction. The second induction coil is configured to generate a second current that flows in the opposite second direction. It is composed of.

[0053] According to the second aspect, a method for operating an induction heater powered by a battery, The induction heater has a first induction coil and a second induction coil, and this method is induction heating The process involves determining the target power to be applied to the heat source, determining the battery characteristics, and then proceeding according to the battery characteristics. Then, a pulse signal is generated, and according to the target power and pulse signal, the first induction coil Through this, a first current having a first direction is generated, and the target power and pulse signal are used. Therefore, through the second induction coil, a second electric current having a second direction opposite to the first direction... This includes generating a flow.

[0054] In one embodiment, determining the battery characteristics involves measuring the battery voltage while under no-load conditions. This includes determining the relative charge state of the battery based on the measured voltage.

[0055] In one embodiment, generating a pulse signal according to the battery characteristics is determined relative The pulse period is determined based on the charge state, and the pulse is determined based on the pulse period. This includes generating a signal.

[0056] In one embodiment, the length of the pulse period is directly proportional to the relative charge state value.

[0057] In one embodiment, generating a first current is performed on a first portion of the generated pulse signal. Therefore, the operation of the first switch and the generation of the second current are generated. This includes operating a second switch according to a second portion of the pulse signal.

[0058] In one embodiment, the first portion of the generated pulse signal and the second portion of the generated pulse signal The part indicated is a non-superimposed pulse.

[0059] In one embodiment, generating a first current is achieved by selectively bringing the first induction coil to ground potential. This includes connecting to and generating a second current, and selecting the second induction coil to ground potential. This includes selective connection.

[0060] According to a third aspect, the system is connected to the positive terminal of the battery at the node, and the sensor A control circuit that responds to a signal, and an induction heating device connected to the control circuit and battery via a node. It is positioned such that the first end is wrapped around the magnetic cylinder and connected to a node It is equipped with a first induction coil, which is wound around the magnetic cylinder and connected to a node. An induction heating device comprising a second induction coil having a second end, and a control circuit A first switch device that responds and is connected to the second end of the first induction coil, and A second switch device that responds to your circuit and is connected to the first end of the second induction coil It is equipped with a [specific feature].

[0061] In one embodiment, the first and second switch devices are also connected to the earth potential.

[0062] In one embodiment, the first end of the first induction coil is directly connected to the first end of the magnetic cylinder. Adjacent to each other, the second end of the first induction coil is directly adjacent to the second end of the magnetic cylinder. Furthermore, the first end of the second induction coil is directly adjacent to the second end of the magnetic cylinder, and the second The second end of the induction coil is directly adjacent to the first end of the magnetic cylinder.

[0063] In one embodiment, the system is connected between the first end and the second end of the first induction coil. The first capacitor is connected to the first end and the second end of the second induction coil. It further comprises a second capacitor.

[0064] In one embodiment, the control circuit generates a first pulse signal and a second pulse signal. The system is configured such that the first and second pulse signals are non-superimposed pulse signals.

[0065] In one embodiment, the first switch device responds to a first pulse signal and a second switch The switch device responds to the second pulse signal.

Claims

1. An electronic cigarette that performs induction heating and is powered by a battery, which is a DC power source, A first induction coil having a first end connected to the positive terminal of the battery at the node, A second induction coil having a second end connected to the positive terminal of the battery via the node, A first switch device configured to selectively connect the second end of the first induction coil to ground potential, A second switch device configured to selectively connect the first end of the second induction coil to the ground potential, pulse generator, A first driver connected to the pulse generator and configured to supply a first pulse signal to the first switch device, A second driver connected to the pulse generator and configured to supply a second pulse signal to the second switch device, Equipped with, The first driver and the second driver are configured to operate the first switch device and the second switch device alternately. The pulse generator generates the first pulse signal and the second pulse signal such that the frequencies of the first pulse signal and the second pulse signal increase as the voltage of the battery decreases. The first end of the first induction coil is positioned directly adjacent to the first end of the second induction coil, rather than to the second end of the first induction coil and the second end of the second induction coil. An electronic cigarette in which the second end of the second induction coil is positioned directly adjacent to the second end of the first induction coil, more so than the first end of the second induction coil and the first end of the first induction coil.

2. An electronic cigarette according to claim 1, wherein the pulse generator is further configured to operate so that the first pulse signal and the second pulse signal do not overlap.

3. An electronic cigarette according to claim 1, wherein the first induction coil and the second induction coil are wound around a single magnetic cylinder, the magnetic cylinder having a first end and a second end.

4. The electronic cigarette according to claim 1, A first capacitor connected between the first end and the second end of the first induction coil, A second capacitor connected between the first end and the second end of the second induction coil, An electronic cigarette with even more features.

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