Atomization component, atomizer, and electronic atomization device

Patent metadata

Field	Value
Publication number	US-12543790-B2
Application number	US-202217814035-A
Country	US
Kind code	B2
Filing date	Jul 21, 2022
Priority date	Aug 13, 2021
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

An atomization component includes: a matrix; and a heating film. The matrix includes an atomization surface. The heating film is arranged on the atomization surface, and when energized, heats and atomizes an aerosol-generating substrate on the atomization surface. The heating film includes a metal heating layer and an inorganic protection layer that are stacked, the inorganic protection layer being arranged on a surface of the metal heating layer that is away from the matrix. The metal heating layer includes at least two sub-metal layers that are sequentially stacked. Any two adjacent sub-metal layers have different components.

First claim

What is claimed is:

1 . An atomization component, comprising:
a matrix; and a heating film, wherein the matrix comprises an atomization surface, wherein the heating film is arranged on the atomization surface, and when energized, is configured to heat and atomize an aerosol-generating substrate on the atomization surface, wherein the heating film comprises a metal heating layer and an inorganic protection layer that are stacked, the inorganic protection layer being arranged on a surface of the metal heating layer that is away from the matrix, wherein the metal heating layer comprises at least two sub-metal layers that are sequentially stacked, wherein any two adjacent sub-metal layers have different components, wherein the metal heating layer comprises a first sub-metal layer and a second sub-metal layer that are stacked, and wherein the first sub-metal layer comprises NiCr or 316L stainless steel, and the second sub-metal layer comprises TiZr.

2 . The atomization component of claim 1 , wherein the matrix comprises a porous matrix, or wherein the metal heating layer and/or the inorganic protection layer comprise porous structures.

3 . The atomization component of claim 1 , wherein the inorganic protection layer comprises at least one of a ceramic material or a glass material.

4 . The atomization component of claim 3 , wherein the inorganic protection layer has lipophilicity and/or hydrophilicity.

5 . The atomization component of claim 1 , wherein the metal heating layer comes into contact with the matrix through the second sub-metal layer.

6 . The atomization component of claim 1 , wherein there are at least two first sub-metal layers and at least two second sub-metal layers.

7 . The atomization component of claim 1 , wherein a total thickness of the first sub-metal layer is 1 μm to 20 μm, a total thickness of the second sub-metal layer is 0.5 μm to 5 μm, and a thickness of the inorganic protection layer is 0.1 μm to 5 μm.

8 . The atomization component of claim 1 , wherein a shape of the heating film or the metal heating layer is an S shape, a circle, an ellipse, a semicircle, or a ring.

9 . The atomization component of claim 1 , further comprising:
two electrodes, respectively arranged on two opposite sides of the metal heating layer and electrically connected to the metal heating layer, wherein the inorganic protection layer covers a portion of the metal heating layer that is located between the two electrodes.

10 . The atomization component of claim 9 , the heating film comprises a rectangle,
wherein the two electrodes are arranged on two opposite sides of the rectangle, and wherein a hollowed-out portion that does not generate heat is provided in the rectangular heating film.

11 . The atomization component of claim 10 , wherein the hollowed-out portion comprises a first hollowed-out portion and a second hollowed-out portion, the first hollowed-out portion being located in other opposite sides of the rectangle, and the first hollowed-out portion being a sector, and
wherein the second hollowed-out portion is located in a middle of the heating film, the second hollowed-out portion being an ellipse or a circle.

12 . The atomization component of claim 2 , wherein the atomization surface of the porous matrix comprises a modification layer, and
wherein a thickness of the modification layer is 50 μm to 300 μm.

13 . The atomization component of claim 12 , wherein the modification layer comprises in parts by mass: 56 to 67.5 parts of silicon dioxide, 12 to 18 parts of aluminum oxide, and 2.8 to 5.5 parts of lithium oxide.

14 . An atomizer, comprising:
a liquid storage device; and the atomization component of claim 1 , wherein the liquid storage device is configured to store an aerosol-generating substrate.

15 . An electronic atomization device, comprising:
a battery assembly; and the atomizer of claim 14 , wherein the battery assembly is configured to supply power to the atomizer.

16 . An atomization component, comprising:
a matrix; and a heating film, wherein the matrix comprises an atomization surface, wherein the heating film is arranged on the atomization surface, and when energized, is configured to heat and atomize an aerosol-generating substrate on the atomization surface, wherein the heating film comprises a metal heating layer and an inorganic protection layer that are stacked, the inorganic protection layer being arranged on a surface of the metal heating layer that is away from the matrix, wherein the metal heating layer comprises at least two sub-metal layers that are sequentially stacked, wherein any two adjacent sub-metal layers have different components, wherein the matrix comprises a porous matrix, or wherein the metal heating layer and/or the inorganic protection layer comprise porous structures, wherein the atomization surface of the porous matrix comprises a modification layer, and wherein a thickness of the modification layer is 50 μm to 300 μm.

17 . The atomization component of claim 16 , wherein the modification layer comprises in parts by mass: 56 to 67.5 parts of silicon dioxide, 12 to 18 parts of aluminum oxide, and 2.8 to 5.5 parts of lithium oxide.

Assignees

• Shenzhen Smoore Technology Ltd

Inventors

• Lv Hongxia
• Jiang Zhenlong
• Li Pei

Classifications

• H05B2203/021

  Heaters specially adapted for heating liquids · CPC title

• H05B2203/016

  Heaters using particular connecting means · CPC title

• H05B2203/013

  Heaters using resistive films or coatings · CPC title

• H05B3/18

  the conductor being embedded in an insulating material · CPC title

• H05B3/12

  characterised by the composition or nature of the conductive material · CPC title