CN-122028819-A - Aerosol generating device comprising a plurality of circuit substrates

Abstract

According to an embodiment, an aerosol-generating device may include a power supply, a first circuit substrate mounted with a processor, a second circuit substrate arranged to be spaced apart from the first circuit substrate, and mounted with a Radio Frequency (RF) signal generating circuit for generating an RF signal using power supplied from the power supply and at least one amplifier for amplifying the generated RF signal, and a radiating portion radiating the amplified RF signal in the form of electromagnetic waves into an insertion space into which an aerosol-generating article is inserted to heat the aerosol-generating article, wherein the processor may be configured to control the RF signal generating circuit and the at least one amplifier.

Inventors

• XU ZHANGYUAN
• JIN ZHENGHAO
• Pu Xiangzhe
• LI YUANJING
• ZHANG ZHEHAO
• ZHENG ZHENZHE

Assignees

• 韩国烟草人参公社

Dates

Publication Date

20260512

Application Date

20250808

Priority Date

20240912

Claims (15)

1. 1. An aerosol-generating device, comprising, as an aerosol-generating device: A power supply; A first circuit substrate on which a processor is mounted; A second circuit substrate arranged to be spaced apart from the first circuit substrate, and mounted with a radio frequency signal generating circuit for generating a radio frequency signal using power supplied from the power source and at least one amplifier for amplifying the generated radio frequency signal, and A radiation section that radiates the amplified radio frequency signal in the form of electromagnetic waves into an insertion space into which the aerosol-generating article is inserted to heat the aerosol-generating article, Wherein the processor is configured to control the radio frequency signal generation circuit and the at least one amplifier.
2. 2. An aerosol-generating device according to claim 1, wherein, Within the second circuit substrate, a first region in which the radio frequency signal generating circuit is mounted and a second region in which the at least one amplifier is mounted are physically separated.
3. 3. An aerosol-generating device according to claim 1, wherein, The radio frequency signal generating circuit and the at least one amplifier are arranged close to two edges or corners of the second circuit substrate, respectively, which are opposite to each other with reference to the center of the second circuit substrate.
4. 4. An aerosol-generating device according to claim 1, wherein, The second circuit substrate includes a first ground connected to the radio frequency signal generating circuit and a second ground arranged to be separated from the first ground and connected to the at least one amplifier, and The first ground and the second ground are electrically connected at a single location by a noise reduction element.
5. 5. An aerosol-generating device according to claim 4, wherein, The noise reduction element includes at least one of a zero ohm resistor and magnetic beads.
6. 6. An aerosol-generating device according to claim 4, wherein, In the case where the second circuit substrate is a multilayer circuit substrate including at least one ground layer inside, the first ground and the second ground are respectively arranged in physically separated areas within the at least one ground layer.
7. 7. An aerosol-generating device according to claim 1, wherein, The at least one amplifier includes: a driving amplifier for amplifying the level of the generated radio frequency signal, and And a power amplifier for amplifying power of the radio frequency signal received from the driving amplifier.
8. 8. An aerosol-generating device according to claim 7, further comprising: a temperature sensing circuit mounted on the second circuit substrate, Wherein the temperature sensing circuit is arranged adjacent to the power amplifier.
9. 9. An aerosol-generating device according to claim 8, wherein, The processor stops operation of at least one of the radio frequency signal generating circuit and the at least one amplifier in response to determining that the temperature measured by the temperature sensing circuit exceeds a preset threshold.
10. 10. The aerosol-generating device according to claim 1, further comprising: and a heat radiating part for effectively releasing or dispersing heat generated from the second circuit substrate to minimize transfer of the heat generated from the second circuit substrate to the power supply.
11. 11. An aerosol-generating device according to claim 10, wherein, The second circuit board is arranged so as not to overlap the power supply in any of the left-right direction, the front-rear direction, and the up-down direction, and The heat dissipation portion is disposed in contact with or adjacent to at least one surface of the second circuit substrate.
12. 12. The aerosol-generating device according to claim 1, further comprising: And a directional coupler for separating the amplified radio frequency signal and the reflected electromagnetic wave radiated by the radiating portion and reflected from the insertion space and receiving the separated radio frequency signal and the reflected electromagnetic wave.
13. 13. An aerosol-generating device according to claim 12, wherein, The directional coupler and the at least one amplifier are arranged close to two edges or corners of the second circuit substrate facing each other with reference to the center of the second circuit substrate, respectively.
14. 14. An aerosol-generating device according to claim 12, wherein, The directional coupler and the at least one amplifier are arranged on different surfaces of the second circuit substrate from each other.
15. 15. The aerosol-generating device according to claim 1, further comprising: At least one power conversion circuit mounted on the first circuit substrate and configured to convert power supplied from the power supply into power suitable for each of the processor, the radio frequency signal generation circuit, and the at least one amplifier, Wherein, within the first circuit substrate, a region in which a digital circuit including the processor is mounted and a region in which an analog circuit including the at least one power conversion circuit is mounted are electrically and physically separated.

Description

Aerosol generating device comprising a plurality of circuit substrates Technical Field The present disclosure relates to an aerosol-generating device comprising a plurality of circuit substrates. Background Instead of the method of generating an aerosol by burning cigarettes, there is an increasing demand for aerosol generating devices that generate an aerosol by a non-burning method. An aerosol-generating device refers to, for example, a device that generates an aerosol from an aerosol-generating substance in a non-combustion manner and provides the aerosol to a user, or generates a flavored aerosol by passing vapor generated from the aerosol-generating substance through a flavor medium. The aerosol-generating device may heat the aerosol-generating substance in a variety of ways, such as resistive heating, inductive heating, ultrasound transducer based heating, etc. In addition to the above-described methods, research is also being conducted into aerosol-generating devices that can heat an aerosol-generating substance by utilizing the principle of dielectric heating. However, achieving dielectric heating may require new circuit elements not included in existing aerosol-generating devices, and may require techniques for properly distributing and/or arranging the new circuit elements within at least one circuit substrate. Disclosure of Invention Technical problem Various embodiments of the present disclosure relate to an aerosol-generating device comprising a plurality of circuit substrates. The type of circuit substrate suitable for each circuit element may be different due to the different operating conditions and/or operating characteristics of the circuit elements. In addition, since circuit elements mounted on the same circuit substrate may affect each other, a preferable arrangement in consideration of each operating condition and/or operating characteristic may be required. Various embodiments may provide techniques for distributing and/or arranging circuit elements for achieving dielectric heating in an appropriate manner within at least one circuit substrate. The problems to be solved by the embodiments of the present disclosure are not limited to the above-described problems, and the non-mentioned problems can be clearly understood by those of ordinary skill in the art to which the embodiments belong from the description and the drawings. Technical proposal An aerosol-generating device according to an embodiment may include a power supply, a first circuit substrate mounted with a processor, a second circuit substrate arranged to be spaced apart from the first circuit substrate, and mounted with a Radio Frequency (RF) signal generating circuit for generating an RF signal using power supplied from the power supply and at least one amplifier for amplifying the generated RF signal, and a radiating part radiating the amplified RF signal in the form of electromagnetic waves into an insertion space into which an aerosol-generating article is inserted to heat the aerosol-generating article, wherein the processor may be configured to control the RF signal generating circuit and the at least one amplifier. An aerosol-generating device according to another embodiment may include a power supply, a first circuit substrate mounted with a processor and an RF signal generating circuit for generating an RF signal using power supplied from the power supply, a second circuit substrate directly mounted on a surface of the first circuit substrate and mounted with at least one amplifier for amplifying the generated RF signal, and a radiating part radiating the amplified RF signal in an electromagnetic wave form into an insertion space into which an aerosol-generating article is inserted to heat the aerosol-generating article, wherein the processor may be configured to control the RF signal generating circuit and the at least one amplifier, and a dielectric constant of the second circuit substrate may be lower than that of the first circuit substrate. Advantageous effects An aerosol-generating device according to various embodiments of the present disclosure may comprise a circuit substrate mounted with circuit elements for controlling the overall operation of the aerosol-generating device and a circuit substrate mounted with circuit elements for generating and/or amplifying RF signals. In other words, the aerosol-generating device can appropriately distribute the circuit elements corresponding to the respective functions to the circuit substrates more suitable for realizing each function by functionally distinguishing the circuit elements and mounting the circuit elements on different circuit substrates. In addition, the circuit elements mounted within the same circuit substrate may be arranged in an appropriate manner in consideration of the operating condition and/or the operating characteristics of each thereof. Thus, stable operation of the circuit element that realizes dielectric heating can be ensured. In addition