CN-122029940-A - Aerosol generating device and system

Abstract

An aerosol-generating device comprises a chamber for housing an aerosol-generating article, a radiating element and a printed circuit board. The printed circuit board may include a ground layer, a first dielectric, a second dielectric, a source layer, and a control layer separated from the source layer by a gap, the first dielectric having a relative permittivity less than a relative permittivity of the second dielectric.

Inventors

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

Assignees

• 韩国烟草人参公社

Dates

Publication Date

20260512

Application Date

20250724

Priority Date

20240911

Claims (12)

1. 1. An aerosol-generating device, characterized in that, Comprising the following steps: A chamber for receiving an aerosol-generating article, A radiating element radiating a radio frequency signal to the chamber, an A printed circuit board; The printed circuit board includes: A ground layer including a first region and a second region different from the first region, A first dielectric disposed on the first region, A second dielectric disposed on the second region, A source layer disposed on the first dielectric and having an antenna pattern, an A control layer disposed on the second dielectric and separated from the source layer by a gap, the control layer for controlling the source layer to generate a radio frequency signal; the relative permittivity of the first dielectric is smaller than the relative permittivity of the second dielectric.
2. 2. An aerosol-generating device according to claim 1, wherein, The relative dielectric constant of the first dielectric is about 2.0 or more and about 3.5 or less.
3. 3. An aerosol-generating device according to claim 1, wherein, Further comprises: And a heat dissipation element disposed on the source layer.
4. 4. An aerosol-generating device according to claim 3, wherein, The heat dissipating element comprises graphite.
5. 5. An aerosol-generating device according to claim 1, wherein, Further comprises: and a transmission line configured to connect the source layer and the control layer.
6. 6. An aerosol-generating device according to claim 1, wherein, Further comprises: A resonant structure at least partially surrounding the chamber.
7. 7. An aerosol-generating system, characterized in that, Comprising the following steps: an aerosol-generating article, and An aerosol-generating device configured to heat the aerosol-generating article; The aerosol-generating device comprises: A chamber for receiving an aerosol-generating article, A radiating element radiating a radio frequency signal to the chamber, an A printed circuit board; The printed circuit board includes: A ground layer including a first region and a second region different from the first region, A first dielectric disposed on the first region, A second dielectric disposed on the second region, A source layer disposed on the first dielectric and having an antenna pattern, an A control layer disposed on the second dielectric and separated from the source layer by a gap, the control layer for controlling the source layer to generate a radio frequency signal; the relative permittivity of the first dielectric is smaller than the relative permittivity of the second dielectric.
8. 8. An aerosol-generating system according to claim 7, wherein, The relative dielectric constant of the first dielectric is about 2.0 or more and about 3.5 or less.
9. 9. An aerosol-generating system according to claim 7, wherein, The aerosol-generating device further comprises: And a heat dissipation element disposed on the source layer.
10. 10. An aerosol-generating system according to claim 9, wherein, The heat dissipating element comprises graphite.
11. 11. An aerosol-generating system according to claim 7, wherein, The aerosol-generating device further comprises: and a transmission line configured to connect the source layer and the control layer.
12. 12. An aerosol-generating system according to claim 7, wherein, The aerosol-generating device further comprises: A resonant structure at least partially surrounding the chamber.

Description

Aerosol generating device and system Technical Field The present invention relates generally to an aerosol-generating device and system. Background Currently, techniques for introducing an air stream into an aerosol-generating article to achieve atomization performance are under investigation. For example, an aerosol-generating device is being developed that generates an aerosol from an aerosol-generating article in a non-combustion manner. The foregoing background art is known or learned by the inventors during the course of their derivation and should not be construed as necessarily the general known art disclosed to the public prior to the application of the invention. Disclosure of Invention Problems to be solved by the invention An aspect of the present disclosure provides an aerosol-generating device and system with improved system stability. Technical means for solving the problems An aerosol-generating device comprising a chamber for receiving an aerosol-generating article, a radiating element radiating a Radio Frequency (RF) signal to the chamber, and a printed circuit board comprising a ground plane comprising a first region and a second region different from the first region, a first dielectric disposed on the first region, a second dielectric disposed on the second region, a source layer disposed on the first dielectric and having an antenna pattern, and a control layer disposed on the second dielectric and separated from the source layer by a gap, the control layer for controlling the source layer to generate the RF signal, the relative permittivity of the first dielectric being less than the relative permittivity of the second dielectric. The relative dielectric constant of the first dielectric is about 2.0 or more and about 3.5 or less. The aerosol-generating device may further comprise a heat dissipating element arranged on the source layer. The heat dissipating element comprises graphite. The aerosol-generating device may further comprise a transmission line configured to connect the source layer and the control layer. The aerosol-generating device may further comprise a resonant structure at least partially surrounding the chamber. An aerosol-generating system comprising an aerosol-generating article, and an aerosol-generating device configured to heat the aerosol-generating article, the aerosol-generating device comprising a chamber for housing the aerosol-generating article, a radiating element to radiate a radio frequency signal to the chamber, and a printed circuit board comprising a ground plane comprising a first region and a second region different from the first region, a first dielectric arranged on the first region, a second dielectric arranged on the second region, a source layer arranged on the first dielectric and having an antenna pattern, and a control layer arranged on the second dielectric and separated from the source layer by a gap, the control layer for controlling the source layer to generate a radio frequency signal, the relative permittivity of the first dielectric being smaller than the relative permittivity of the second dielectric. The relative dielectric constant of the first dielectric is about 2.0 or more and about 3.5 or less. The aerosol-generating device further comprises a heat dissipating element arranged on the source layer. The heat dissipating element comprises graphite. The aerosol-generating device may further comprise a transmission line configured to connect the source layer and the control layer. The aerosol-generating device may further comprise a resonant structure at least partially surrounding the chamber. Effects of the invention According to an embodiment, the energy efficiency of the aerosol-generating device and system may be improved. According to an embodiment, the temperature stability of the aerosol-generating device and system may be improved. According to an embodiment, the aerosol-generating device and system may reduce transmission losses. According to an embodiment, the signal transmission performance and/or the heating performance of the aerosol-generating device and system may be improved. The effects of the aerosol-generating device according to an embodiment are not limited to the above description, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. Drawings The above and other aspects, features and advantages of specific embodiments of the present disclosure will become more apparent from the detailed description taken in conjunction with the accompanying drawings. Fig. 1 is a block diagram of an aerosol-generating device according to an embodiment. Fig. 2 is a schematic diagram illustrating an aerosol-generating device. Fig. 3 is a cross-sectional view of a printed circuit board. Fig. 4 is a cross-sectional view of a printed circuit board and a heat dissipating element. Fig. 5 is a cross-sectional view of a printed circuit board and a transmission line. Detai