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CN-121986545-A - Heater control method and aerosol generating device for performing the same

CN121986545ACN 121986545 ACN121986545 ACN 121986545ACN-121986545-A

Abstract

According to an embodiment, there is provided a heater control method of an aerosol-generating device, including the steps of applying a first signal having a first frequency to a coil of the heater to generate an alternating magnetic field, determining a first value based on an electrical characteristic of an induction heating body exhibited by the first signal, determining a first heating frequency based on the first value, and applying the first heating signal having the first heating frequency to the coil of the heater to perform a power PID (program-Integral-Differential) control based on a first power curve.

Inventors

  • LI ZAIMIN
  • Pu Xianggui

Assignees

  • 韩国烟草人参公社

Dates

Publication Date
20260505
Application Date
20250822
Priority Date
20240829

Claims (15)

  1. 1. A method for controlling a heater of an aerosol-generating device, characterized in that, The method comprises the following steps: Applying a first signal having a first frequency to a coil of the heater to generate an alternating magnetic field, Determining a first value based on an electrical characteristic of the induction heating element exhibited by the first signal, Determining a first heating frequency based on the first value, and A first heating signal having the first heating frequency is applied to the coil of the heater for power PID control based on a first power profile.
  2. 2. A method of controlling a heater of an aerosol-generating device according to claim 1, The step of determining the first heating frequency comprises the steps of: the first heating frequency is determined such that a second value of the electrical characteristic of the induction heating body, which is exhibited based on a second signal having the first heating frequency, corresponds to a first reference value.
  3. 3. A method of controlling a heater of an aerosol-generating device according to claim 2, The first reference value is based on the electric characteristic of the induction heating element when the temperature of the induction heating element is a first reference temperature, The step of determining the first heating frequency based on the first value further comprises the steps of: acquiring a first sensor temperature with a first temperature sensor arranged within a body of the aerosol-generating device, and The first value is calibrated based on the first sensor temperature such that the first value corresponds to the electrical characteristic of the induction heating element when the temperature of the induction heating element is a first reference temperature.
  4. 4. A method of controlling a heater of an aerosol-generating device according to claim 1, A step of determining the first heating frequency based on the first value, comprising the steps of: Applying a third signal having a second frequency determined based on the first value to the coil of the heater to generate an alternating magnetic field, Determining a third value based on the electrical characteristic of the induction heating element exhibited by the third signal, and The first heating frequency is determined based on the third value.
  5. 5. A method of controlling a heater of an aerosol-generating device according to claim 1, A step of determining the first value of the electrical characteristic of the induction heating element, comprising the steps of: The first value is determined based on at least one of a current, a voltage, and a power of a first output signal that is presented at an output of the coil of the heater.
  6. 6. A method of controlling a heater of an aerosol-generating device according to claim 5, The electrical characteristic of the induction heating element is an eddy current.
  7. 7. A method of controlling a heater of an aerosol-generating device according to claim 1, The method also comprises the following steps: When the temperature of the induction heating body reaches a first target temperature through the electric PID control, a second heating signal is applied to the coil of the heater to perform temperature PID control based on a first temperature profile.
  8. 8. A method of controlling a heater of an aerosol-generating device according to claim 7, The method also comprises the following steps: when the temperature of the induction heating element reaches a second target temperature through the temperature PID control, a notification is output to a user that the aerosol-generating article is ready for smoking.
  9. 9. A method of controlling a heater of an aerosol-generating device according to claim 7, The frequency of the second heating signal is the first frequency.
  10. 10. A method of controlling a heater of an aerosol-generating device according to claim 7, The frequency of the second heating signal is the first heating frequency.
  11. 11. A method of controlling a heater of an aerosol-generating device according to claim 1, When an input to heat the induction heating body of the aerosol-generating device is received, the first signal having the first frequency is applied to the coil of the heater.
  12. 12. A method of controlling a heater of an aerosol-generating device according to claim 1, The method also comprises the following steps: acquiring a second sensor temperature with a first temperature sensor disposed within a body of the aerosol-generating device when an input is received that heats the induction heating element of the aerosol-generating device; applying the first signal having the first frequency to the coil of the heater when the second sensor temperature is within a preset temperature range, When the second sensor temperature exceeds a preset temperature range, the first heating signal having the previously determined first heating frequency is applied to the coil of the heater to perform the electric PID control.
  13. 13. A computer-readable recording medium storing a program for executing the method of claim 1.
  14. 14. An aerosol-generating device, characterized in that, Comprising the following steps: an induction coil for generating an alternating magnetic field, and A control unit that controls the aerosol-generating device; the control section is configured to: Applying a first signal having a first frequency to a coil of the heater to generate an alternating magnetic field, Determining a first value based on an electrical characteristic of the induction heating element exhibited by the first signal, Determining a first heating frequency based on the first value, and A first heating signal having the first heating frequency is applied to the coil of the heater for power PID control based on a first power profile.
  15. 15. An aerosol-generating device according to claim 14, wherein: Further comprising a first temperature sensor arranged within the body of the aerosol-generating device; the control portion may determine the first heating frequency, Acquiring a first sensor temperature using the first temperature sensor, Calibrating the first value based on the first sensor temperature such that the first value corresponds to the electrical characteristic of the induction heating element when the temperature of the induction heating element is a first reference temperature, The first heating frequency is determined such that a second value of the electrical characteristic of the induction heating body, which is exhibited based on a second signal having the first heating frequency, corresponds to a first reference value.

Description

Heater control method and aerosol generating device for performing the same Technical Field The following embodiments relate to a technique for controlling an aerosol-generating device, and more particularly, to a technique for controlling a heater for heating an induction heating element in an aerosol-generating device. Background In recent years, demand for electronic cigarette devices is growing. With the increasing demand for electronic cigarette devices, related functions of electronic cigarette devices have also been continuously developed. In particular, related functions based on the kind and characteristics of the electronic cigarette device are continuously developing. Generally, in order to heat cigarettes using an induction heating method, an electronic cigarette device generates an alternating magnetic field using a coil to generate an eddy current (eddy current) in an induction heating body near the cigarettes. Eddy currents generated in the induction heating element cause the induction heating element to heat up. The electronic cigarette device for heating cigarettes can preheat the induction heating body before a user smokes so as to reach the target temperature. Disclosure of Invention Problems to be solved by the invention An embodiment provides an aerosol-generating device that preheats an induction heating element based on power curve control of power to heat the induction heating element. An embodiment provides an aerosol-generating device that determines a frequency of a signal applied to a coil of a heater to heat an induction heating element based on an electrical characteristic of the induction heating element. However, the problems to be solved by the present invention are not limited to the above-described problems, and other technical problems may be present. Technical means for solving the problems According to an embodiment, there is provided a heater control method of an aerosol-generating device, comprising the steps of applying a first signal having a first frequency to a coil of a heater to generate an alternating magnetic field, determining a first value based on an electrical characteristic of an induction heating body exhibited by the first signal, determining a first heating frequency based on the first value, and applying a first heating signal having the first heating frequency to the coil of the heater to perform a Proportional-Integral-derivative (PID) control based on a first power curve. According to an embodiment, there is provided an aerosol-generating device comprising an induction coil that generates an alternating magnetic field, and a control section that controls the aerosol-generating device, the control section being configured to apply a first signal having a first frequency to a coil of a heater to generate the alternating magnetic field, to determine a first value based on an electrical characteristic of an induction heating body exhibited by the first signal, to determine a first heating frequency based on the first value, and to apply a first heating signal having the first heating frequency to the coil of the heater to perform a Proportional-Integral-Differential (PID) control of electric power based on a first electric power curve. Effects of the invention According to at least one embodiment of the present disclosure, an aerosol-generating device may be provided that preheats an induction heating element to a target temperature by controlling power for heating the induction heating element based on a power curve in a partial section of a preheating section of the induction heating element. According to at least one embodiment of the present disclosure, there may be provided an aerosol-generating device capable of determining a frequency of a signal applied to a coil of a heater for heating an induction heating element based on a magnitude of an eddy current in the induction heating element that is exhibited at a signal of a specific frequency. Drawings Fig. 1 is a block diagram of an aerosol-generating device according to an embodiment. Fig. 2 is a diagram illustrating an aerosol-generating device according to an embodiment. Fig. 3 is a diagram illustrating an aerosol-generating device according to an embodiment. Fig. 4 is a diagram illustrating an aerosol-generating device according to an embodiment. Fig. 5 is a flowchart of a heater control method according to an embodiment. FIG. 6 is a flow diagram of a method of determining whether to perform an act of determining a heating frequency, according to an embodiment. FIG. 7 is a flow chart of a method of determining an electrical characteristic of an induction heating unit according to one embodiment. FIG. 8 is a flow chart of a method of determining a heating frequency based on a sensor temperature according to an embodiment. Fig. 9 is a flowchart of a method of determining a heating frequency such that an electric characteristic of an induction heating body corresponds to a reference value accord