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CN-224219523-U - Aerosol generating device

CN224219523UCN 224219523 UCN224219523 UCN 224219523UCN-224219523-U

Abstract

The application discloses an aerosol generating device, which comprises a power amplifying tube for amplifying the power of a generated microwave signal, an antenna for radiating the amplified microwave signal to an aerosol generating substrate, a circulator and an absorption resistor, wherein the input end of the circulator is connected with the output end of the power amplifying tube, the output end of the circulator is connected with the antenna, the isolation end of the circulator is connected with the first end of the absorption resistor, and the second end of the absorption resistor is grounded. By implementing the technical scheme of the application, even if the aerosol generating substrate is subjected to phase change in the atomization heating process, the dielectric property of a heated object is changed, the reflected microwave signal can be ensured not to greatly influence a preceding-stage circuit, so that the electrical performance of the power amplifying tube is improved, and the overall performance of the aerosol generating device is further improved.

Inventors

  • CHEN ZHIJUN

Assignees

  • 深圳麦时科技有限公司

Dates

Publication Date
20260512
Application Date
20250313

Claims (10)

  1. 1. The aerosol generating device comprises a power amplifying tube for amplifying the power of the generated microwave signal and an antenna for radiating the amplified microwave signal to an aerosol generating substrate, and is characterized by further comprising a circulator and an absorption resistor, wherein the input end of the circulator is connected with the output end of the power amplifying tube, the output end of the circulator is connected with the antenna, the isolation end of the circulator is connected with the first end of the absorption resistor, and the second end of the absorption resistor is grounded.
  2. 2. An aerosol-generating device according to claim 1, further comprising: The forward coupler is connected between the output end of the power amplifying tube and the input end of the circulator and used for coupling the amplified microwave signals; and a reverse coupler connected between the isolation end of the circulator and the first end of the absorption resistor and used for coupling the reflected microwave signals.
  3. 3. An aerosol-generating device according to claim 2, further comprising: a first sampling unit for sampling the microwave signal coupled by the forward coupler; And the second sampling unit is used for sampling the microwave signals coupled by the reverse coupler.
  4. 4. An aerosol-generating device according to claim 3, wherein the forward coupler comprises a first resistor, and a first transmission microstrip and a first coupling microstrip coupled together, wherein a first end of the first transmission microstrip is connected to the output of the power amplifier, a second end of the first transmission microstrip is connected to the input of the circulator, a coupling end of the first coupling microstrip is connected to the input of the first sampling unit, and an isolation end of the first coupling microstrip is grounded via the first resistor, and/or, The reverse coupler comprises a second resistor, a second transmission microstrip line and a second coupling microstrip line, wherein the second transmission microstrip line and the second coupling microstrip line are coupled, a first end of the second transmission microstrip line is connected with an isolation end of the circulator, a second end of the second transmission microstrip line is connected with a first end of the absorption resistor, a coupling end of the second coupling microstrip line is connected with an input end of the second sampling unit, and the isolation end of the second coupling microstrip line is grounded through the second resistor.
  5. 5. An aerosol-generating device according to claim 3, wherein, The first sampling unit comprises a first inductor and a first detector, wherein the first end of the first inductor and the input end of the first detector are respectively connected with the coupling end of the forward coupler, the second end of the first inductor is grounded, the output end of the first detector is the output end of the first sampling unit, and/or, The second sampling unit comprises a second inductor and a second detector, the first end of the second inductor and the input end of the second detector are respectively connected with the coupling end of the reverse coupler, the second end of the second inductor is grounded, and the output end of the second detector is the output end of the second sampling unit.
  6. 6. An aerosol-generating device according to claim 5, wherein the first detector and/or the second detector is a zero-offset schottky detector.
  7. 7. An aerosol-generating device according to claim 3, further comprising: The first low-pass filter is connected between the coupling end of the forward coupler and the input end of the first sampling unit, the variation trend of the amplitude-frequency characteristic of the first low-pass filter in a preset frequency band is opposite to the variation trend of the coupling degree of the forward coupler in the preset frequency band, and/or, The second low-pass filter is connected between the coupling end of the reverse coupler and the input end of the second sampling unit, and the change trend of the amplitude-frequency characteristic of the second low-pass filter in a preset frequency band is opposite to the change trend of the coupling degree of the reverse coupler in the preset frequency band.
  8. 8. An aerosol-generating device according to claim 2, further comprising: An output microstrip line connected between the output of the power amplifier and the input of the forward coupler, and/or, And an input microstrip line connected with the input end of the power amplifier tube.
  9. 9. An aerosol-generating device according to claim 8, wherein, The width of the microstrip line at the output end is reduced stepwise along the transmission direction of the microwave signal; the width of the input microstrip line increases stepwise along the transmission direction of the microwave signal.
  10. 10. An aerosol-generating device according to claim 8, further comprising at least two filter capacitors, and wherein one ends of the at least two filter capacitors are respectively connected to different positions of the output microstrip line, and the other ends of the at least two filter capacitors are respectively grounded.

Description

Aerosol generating device Technical Field The utility model relates to the field of electronic atomization, in particular to an aerosol generating device. Background Along with the continuous development of scientific technology, although atomization heating has made great progress, electronic atomization equipment still has the shortcoming of slow heating speed, can't satisfy user's zero waiting requirement, and then has appeared microwave atomization technology. The microwave atomization is to amplify the power of the generated microwave signal and radiate the amplified microwave signal to the heating cavity so as to heat and atomize the atomized medium in the heating cavity. At present, the design structure of the microwave atomization technology is generally that a power amplifier tube is connected with an antenna unit. In the design structure, the frequency of the microwave signal is high, so that the atomization medium is easily influenced by external factors such as environment, temperature, humidity and the like to generate phase change. When heating, the phase change of the atomization medium can change the dielectric constant of the atomization medium, so that the traction of a front-stage circuit occurs, the electrical performance of a front power amplifier tube is deteriorated, and the overall performance of a microwave atomization product is finally affected. Disclosure of utility model The application aims to solve the technical problem that the electrical performance of a power amplifier tube is poor in the heating process in the prior art, and provides an aerosol generating device. The technical scheme includes that the aerosol generating device comprises a power amplifying tube for amplifying power of a generated microwave signal, an antenna for radiating the amplified microwave signal to an aerosol generating substrate, a circulator and an absorption resistor, wherein the input end of the circulator is connected with the output end of the power amplifying tube, the output end of the circulator is connected with the antenna, the isolation end of the circulator is connected with the first end of the absorption resistor, and the second end of the absorption resistor is grounded. Preferably, the method further comprises: The forward coupler is connected between the output end of the power amplifying tube and the input end of the circulator and used for coupling the amplified microwave signals; and a reverse coupler connected between the isolation end of the circulator and the first end of the absorption resistor and used for coupling the reflected microwave signals. Preferably, the method further comprises: a first sampling unit for sampling the microwave signal coupled by the forward coupler; And the second sampling unit is used for sampling the microwave signals coupled by the reverse coupler. Preferably, the forward coupler comprises a first resistor, a first transmission microstrip line and a first coupling microstrip line which are coupled, wherein a first end of the first transmission microstrip line is connected with the output end of the power amplification tube, a second end of the first transmission microstrip line is connected with the input end of the circulator, a coupling end of the first coupling microstrip line is connected with the input end of the first sampling unit, and an isolation end of the first coupling microstrip line is grounded through the first resistor, The reverse coupler comprises a second resistor, a second transmission microstrip line and a second coupling microstrip line, wherein the second transmission microstrip line and the second coupling microstrip line are coupled, a first end of the second transmission microstrip line is connected with an isolation end of the circulator, a second end of the second transmission microstrip line is connected with a first end of the absorption resistor, a coupling end of the second coupling microstrip line is connected with an input end of the second sampling unit, and the isolation end of the second coupling microstrip line is grounded through the second resistor. Preferably, the first sampling unit includes a first inductor and a first detector, a first end of the first inductor and an input end of the first detector are respectively connected to a coupling end of the forward coupler, a second end of the first inductor is grounded, an output end of the first detector is an output end of the first sampling unit, and/or, The second sampling unit comprises a second inductor and a second detector, the first end of the second inductor and the input end of the second detector are respectively connected with the coupling end of the reverse coupler, the second end of the second inductor is grounded, and the output end of the second detector is the output end of the second sampling unit. Preferably, the first detector and/or the second detector is a zero-offset schottky detector. Preferably, the method further comprises: The firs