WO-2026092022-A1 - HEATING BODY, ATOMIZER, AND AEROSOL GENERATION DEVICE

WO2026092022A1WO 2026092022 A1WO2026092022 A1WO 2026092022A1WO-2026092022-A1

Abstract

A heating body (10), an atomizer (100), and an aerosol generation device (1000). The heating body (10) comprises a base body (11) and a heating member (13). One end of a first sub-portion (1355) is connected to one end of a heating portion (131) and one end of a second sub-portion (1357), the other end of the first sub-portion (1355) passes through a first end (111) of the base body (11), and the other end of the second sub-portion (1357) extends towards a second end (113) of the base body (11) or a side wall of the base body (11).

Inventors

YIN, FENG
CHU, QINGCHEN

Assignees

深圳麦克韦尔科技有限公司

Dates

Publication Date: 20260507
Application Date: 20250926
Priority Date: 20241029

Claims (10)

A heating element, comprising: The matrix includes a first end, a second end, a sidewall connecting the first end and the second end, and an atomization passage penetrating the first end and the second end. The matrix also includes a liquid guiding passage communicating with the atomization passage and used for the flow of the aerosol generation matrix. A heating element is embedded in the substrate and includes a heating part, a first conductive part, and a second conductive part. The heating part surrounds the atomization channel and is used to generate heat when energized to heat the aerosol generation matrix. The first conductive part and the second conductive part are both electrically connected to the heating part and pass through a first end of the substrate. The second conductive part includes a first sub-part and a second sub-part. One end of the first sub-part is connected to one end of both the heating part and the second sub-part. The other end of the first sub-part passes through the first end of the substrate, and the other end of the second sub-part extends toward the second end of the substrate or the sidewall of the substrate.
According to claim 1, the heating element is embedded in the substrate and spaced apart from both the first end and the second end of the substrate.
According to claim 1, the heating element includes a first end and a second end opposite to each other, wherein the first end of the heating element is closer to the first end of the substrate than the second end of the heating element. The first end of the first conductive part passes through the first end of the substrate, and the second end of the first conductive part is electrically connected to the first end of the heating part; the first end of the second conductive part passes through the first end of the substrate, and the second end of the second conductive part is further away from the first end of the substrate than the heating part.
According to claim 3, the second end of the second conductive part is flush with the second end of the substrate.
According to claim 1, the cross-sections of the first conductive part and the second conductive part are both larger than the cross-section of the heating part.
According to claim 5, the cross-sections of the first conductive part, the second conductive part, and the heating part are all circular. The cross-sectional diameter of the first conductive part is 0.35mm-0.50mm; and/or, The cross-sectional diameter of the second conductive part is 0.35mm-0.50mm; and/or, The cross-sectional diameter of the heating element is 0.10mm-0.15mm.
The heating element according to claim 1, wherein the substrate is a porous ceramic, and the liquid guiding passage includes micropores in the substrate.
The heating element according to any one of claims 1-7, wherein the first sub-part and the second sub-part are an integral structure; or, The first sub-part and the second sub-part are separate structures.
An atomizer, comprising: The heating element according to any one of claims 1-8.
An aerosol generating apparatus, comprising: The atomizer according to claim 9; and A power source, which is electrically connected to the atomizer.

Description

Heating element, atomizer and aerosol generating device Priority information This application claims priority and benefits to patent application No. 202422629929.2, filed with the China National Intellectual Property Administration on October 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of electronic atomization technology, and more specifically, to a heating element, an atomizer, and an aerosol generating device. Background Technology An aerosol generating device is a small device that uses heating technology to act on an aerosol generating matrix and generate aerosols. It mainly includes two types of devices: those for atomizing solid matrices and those for atomizing liquid matrices. In related technologies, the atomizer in an aerosol generating device for a liquid matrix includes a heating element, which comprises a substrate and a heating element. The heating element heats and atomizes the aerosol generating matrix in the substrate to generate aerosols. The heating element is disposed inside the substrate, which includes a first end and a second end. The heating element includes a heating section, which also includes a first end and a second end, with the first end of the heating section being closer to the first end of the substrate than the second end. Generally, the two leads connecting to the first and second ends of the heating section are both led out from the same end of the substrate, for example, both from the first end. However, this arrangement results in a long lead distance for the leads connected to the second end of the heating section, leading to unstable structural support of the heating element before molding, which in turn makes the molded heating element prone to changes and results in poor product consistency. Summary of the Invention The embodiments of this application provide a heating element, an atomizer, and an aerosol generating device. The heating element of this application includes a substrate and a heating element. The substrate includes a first end, a second end, a sidewall connecting the first end and the second end, and an atomization passage penetrating the first end and the second end. The substrate also includes a liquid guiding passage, which communicates with the atomization passage and is used to allow the aerosol generation matrix to flow. The heating element is embedded in the substrate and includes a heating part, a first conductive part, and a second conductive part. The heating part surrounds the atomization passage and is used to generate heat when energized to heat the aerosol generation matrix. The first conductive part and the second conductive part are both electrically connected to the heating part and pass through the first end of the substrate. The second conductive part includes a first sub-part and a second sub-part. One end of the first sub-part is connected to one end of both the heating part and the second sub-part. The other end of the first sub-part passes through the first end of the substrate, and the other end of the second sub-part extends toward the second end of the substrate or the sidewall of the substrate. In some embodiments, the heating element is embedded in the substrate and spaced apart from both the first end and the second end of the substrate. In some embodiments, the heating element includes a first end and a second end opposite to each other, wherein the first end of the heating element is closer to the first end of the substrate than the second end of the heating element. The first end of the first conductive element passes through the first end of the substrate, and the second end of the first conductive element is electrically connected to the first end of the heating element; the first end of the second conductive element passes through the first end of the substrate, and the second end of the second conductive element is further away from the first end of the substrate than the heating element. In some embodiments, the second end of the second conductive portion is flush with the second end of the substrate. In some embodiments, the cross-sections of both the first conductive portion and the second conductive portion are larger than the cross-section of the heating portion. In some embodiments, the cross-sections of the first conductive part, the second conductive part, and the heating part are all circular; the cross-sectional diameter of the first conductive part is 0.35mm-0.50mm; and/or, the cross-sectional diameter of the second conductive part is 0.35mm-0.50mm; and/or, the cross-sectional diameter of the heating part is 0.10mm-0.15mm. In some embodiments, the substrate is a porous ceramic, and the liquid-conducting pathway includes micropores in the substrate. In some embodiments, the first sub-part and the second sub-part are an integral structure. In some embodiments, the first sub-part and the second sub-part are separate struct