US-12622466-B2 - Aerosol generating device

US12622466B2US 12622466 B2US12622466 B2US 12622466B2US-12622466-B2

Abstract

An aerosol generating device includes a first housing including an article insertion portion, wherein the article insertion portion includes at least one first airflow path and is configured to receive an aerosol generating article, a second housing including at least one second airflow path in fluid communication with the at least one first airflow path, wherein the second housing is positioned in the first housing and configured to accommodate the aerosol generating article and heat the aerosol generating article, a sensor configured to sense air pressure and positioned in the first housing such that the sensor recognizes airflow between the at least one first airflow path and the at least one second airflow path, and a heat spreader positioned on the sensor and configured to diffuse heat transferred from the second housing to the sensor.

Inventors

Dong Sung Kim
Yong Hwan Kim
Hunil LIM
Seok Su JANG

Assignees

KT&G CORPORATION

Dates

Publication Date: 20260512
Application Date: 20221118
Priority Date: 20211123

Claims (9)

1 . An aerosol generating device, comprising: a first housing comprising an article insertion portion, wherein the article insertion portion comprises at least one first airflow path and is configured to receive an aerosol generating article; a second housing comprising at least one second airflow path in fluid communication with the at least one first airflow path, wherein the second housing is positioned in the first housing and configured to accommodate the aerosol generating article and heat the aerosol generating article; a sensor configured to sense air pressure and positioned in the first housing such that the sensor recognizes airflow between the at least one first airflow path and the at least one second airflow path; and a heat spreader positioned on the sensor and configured to diffuse heat transferred from the second housing to the sensor.
2 . The aerosol generating device of claim 1 , wherein the sensor comprises a sensor body, and a sensor hole formed in the sensor body, and the heat spreader comprises a heat dissipation plate positioned on a surface of the sensor body on which the sensor hole is provided.
3 . The aerosol generating device of claim 2 , wherein the heat dissipation plate is formed of a metal material.
4 . The aerosol generating device of claim 2 , wherein the heat spreader further comprises a support body configured to support the heat dissipation plate with respect to the first housing.
5 . The aerosol generating device of claim 4 , wherein the support body is formed of an elastic material.
6 . The aerosol generating device of claim 4 , wherein the heat dissipation plate and the support body are detachably coupled to each other.
7 . The aerosol generating device of claim 4 , wherein the heat dissipation plate and the support body are bonded to each other.
8 . The aerosol generating device of claim 1 , wherein the heat spreader surrounds at least a portion of the sensor.
9 . The aerosol generating device of claim 2 , wherein the heat dissipation plate comprises a first portion positioned on a first surface of the sensor body and on a surface of the sensor body on which the sensor hole is provided, and a second portion positioned on a second surface connected to the first surface of the sensor body.

Description

This Application is a National Stage of International Application No. PCT/KR2022/018303 filed Nov. 18, 2022, claiming priority based on Korean Patent Application No. 10-2021-0162184 filed Nov. 23, 2021. TECHNICAL FIELD The disclosure relates to an aerosol generating device. BACKGROUND ART Aerosol generating devices that generate an aerosol from an aerosol generating article in a non-burning manner have been developed. In particular, techniques for introducing external air into an aerosol generating article have been developed to enhance atomization performance. DISCLOSURE OF INVENTION Technical Problems One or more embodiments may provide an aerosol generating device that improves the recognition accuracy of a sensor. Solutions to Problem According to an aspect, there is provided an aerosol generating device including a first housing including an article insertion portion, wherein the article insertion portion includes at least one first airflow path and is configured to receive an aerosol generating article, a second housing including at least one second airflow path in fluid communication with the at least one first airflow path, wherein the second housing is positioned in the first housing and configured to accommodate the aerosol generating article and heat the aerosol generating article, a sensor configured to sense air pressure and positioned in the first housing such that the sensor recognizes airflow between the at least one first airflow path and the at least one second airflow path, and a heat spreader positioned on the sensor and configured to diffuse heat transferred from the second housing to the sensor. The sensor may include a sensor body, and a sensor hole formed in the sensor body, and the heat spreader may include a heat dissipation plate positioned on a surface of the sensor body on which the sensor hole is provided. The heat dissipation plate may be formed of a metal material. The heat spreader may further include a support body configured to support the heat dissipation plate with respect to the first housing. The support body may be formed of an elastic material. The heat dissipation plate and the support body may be detachably coupled to each other. The heat dissipation plate and the support body may be bonded to each other. The heat spreader may surround at least a portion of the sensor. The heat dissipation plate may include a first portion positioned on a first surface of the sensor body and on a surface of the sensor body on which the sensor hole is provided, and a second portion positioned on a second surface connected to the first surface of the sensor body. Advantageous Effects of Invention According to an example embodiment, it is possible to protect a sensor in a high-temperature environment. According to an example embodiment, it is possible to improve the recognition accuracy of a sensor in a high-temperature environment. The effects of the aerosol generating device according to one example embodiment are not limited to the above-mentioned effects, and other unmentioned effects can be clearly understood from the following description by one of ordinary skill in the art. BRIEF DESCRIPTION OF DRAWINGS The foregoing and other aspects, features, and advantages of example embodiments in the disclosure will become apparent from the following detailed description with reference to the accompanying drawings. FIG. 1 is a block diagram of an aerosol generating device according to an example embodiment. FIG. 2 is a perspective view of an aerosol generating system according to an example embodiment. FIG. 3 is a cross-sectional view of the aerosol generating system of FIG. 2 viewed along a line 3-3. FIG. 4 is an exploded perspective view of an aerosol generating device according to an example embodiment. FIG. 5 is a view showing a cross section of an aerosol generating system according to an example embodiment. FIGS. 6 through 8 are diagrams illustrating examples of an aerosol generating article (e.g., a cigarette) inserted into an aerosol generating device according to an example embodiment. FIGS. 9 and 10 are diagrams illustrating examples of an aerosol generating article (e.g., a cigarette) according to an example embodiment. MODE FOR THE INVENTION The terms used in the example embodiments are selected from among common terms that are currently widely used, in consideration of their function in the example embodiments. However, the terms may become different according to an intention of one of ordinary skill in the art, a precedent, or the advent of new technology. Also, in particular cases, the terms are discretionally selected by the applicant of the disclosure, and the meaning of those terms will be described in detail in the corresponding part of the detailed description. Therefore, the terms used in the disclosure are not merely designations of the terms, but the terms are defined based on the meaning of the terms and content throughout the disclosure. It will be understood that