HEATING ELEMENT, AEROSOL PRODUCER, AND AEROSOL ARTICLE
A heating element includes a main body. The main body includes a thermal air chamber and at least one through hole communicating with the thermal air chamber.
1 . A heating element, comprising a main body; wherein the main body comprises a thermal air chamber and at least one through hole communicating with the thermal air chamber.
2 . The heating element of claim 1 , wherein the main body is in an elongated shape; and the thermal air chamber extends along a length of the main body.
3 . The heating element of claim 1 , wherein the thermal air chamber comprises a first chamber.
4 . The heating element of claim 3 , wherein the heating element further comprises a temperature sensor disposed in the first chamber.
5 . The heating element of claim 3 , wherein the first chamber is surrounded by a side wall and the at least one through hole is disposed on the side wall; and the first chamber communicates with outside air of the main body through the at least one through hole.
6 . The heating element of claim 3 , wherein the thermal air chamber further comprises a second chamber communicating with the first chamber.
7 . The heating element of claim 6 , wherein the second chamber is surrounded by a side wall and the at least one through hole is disposed on the side wall; and the second chamber communicates with outside air of the main body through the at least one through hole.
8 . The heating element of claim 3 , wherein the main body further comprises an elongated sheet, a first side wall, and a second side wall; the first side wall and the second side wall are disposed oppositely to each other; the first chamber is surrounded by the first side wall and/or the second side wall; and the first side wall and/or the second side wall is disposed on the elongated sheet.
9 . The heating element of claim 8 , wherein the elongated sheet comprises a notch extending along a length of the main body; the notch is surrounded by the first side wall and the second side wall, thus forming the first chamber; and at least one of the first side wall and the second side wall is convex with respect to the elongated sheet.
10 . The heating element of claim 5 , wherein the main body further comprises a top part and the first chamber comprises a top portion; a preset distance exists between the top part and the top portion; and the first chamber is disposed in the middle of the main body and extends along a length of the main body.
11 . The heating element of claim 7 , wherein the main body further comprises a top part and the first chamber comprises a top portion; a preset distance exists between the top part and the top portion; and the first chamber is disposed in the middle of the main body and extends along a length of the main body.
12 . The heating element of claim 6 , wherein the main body further comprises an annular wall surrounding an annular space; the annular wall comprises a first side wall and a second side wall disposed oppositely to the first side wall; the first chamber is surrounded by the first side wall and the second side wall; and the annular space outside the first chamber defines the second chamber.
13 . The heating element of claim 1 , wherein the main body comprises a rigid conductive material; optionally, the main body further comprises a rigid non-conductive material, and a conductive layer is disposed on an outer wall of the main body.
14 . The heating element of claim 13 , wherein the main body comprises a rigid non-metallic material, and the conductive layer is further disposed on an inner wall of the thermal air chamber; the conductive layer is further disposed on a side wall surrounding the at least one through hole; and the main body further comprises a passivation layer disposed on the conductive layer.
15 . An aerosol-generating device, comprising a cavity, and the heating element of claim 1 disposed in the cavity.
16 . An aerosol-generating article, comprising a tobacco material and the heating element of claim 1 disposed in the tobacco material.