The invention discloses an
electronic cigarette heating core, and belongs to the technical field of electronic cigarettes. The
electronic cigarette heating core comprises a sealing sleeve, a sleeve head, a sleeve middle and a sleeve bottom, the left and the right of the top of the sleeve head are each perpendicularly provided with a first hole channel, the left and the right of the lower portion of the sleeve head are each horizontally provided with a second hole channel, the middle of the sleeve middle and the middle of the sleeve bottom are a main
air channel, and the upper portion of the main
air channel is communicated with the first hole channels and the second hole channels; a first annular groove is formed in the center of the top of the sleeve bottom, and a second annular groove is formed in the side edge of the top of the sleeve bottom. The
electronic cigarette heating core has the advantages that in the
air channel, the first hole channels and the second hole channels are mutually staggered, air can flow smoothly, and cigarette
tar can be prevented from entering; by means of the first annular groove formed in the sleeve bottom, redundant cigarette
tar heaped on the joint of the sealing sleeve and an electronic cigarette shell is reduced, the aging speed of the sealing sleeve is decreased, and leakage of the cigarette
tar is prevented; the second annular groove is combined with an original groove, and sealing is achieved through a sealing ring which is made of materials harmless to a
human body, so that the sealing performance of the heating core is particularly good.