Heater assembly and cartridge

A cartridge, comprising:

• a cartridge tube provided with a flue and a liquid storage chamber;
• an integrated member installed in the cartridge tube and sealing the liquid storage chamber;
• an atomizing core installed inside the integrated member;
• and
• a base fixed to the cartridge tube to limit the integrated member within the cartridge tube;
• wherein the integrated member includes a cavity recessed upward from the bottom thereof, an e-liquid passage penetrating the integrated member vertically, and an air passage disposed in isolation from the e-liquid passage, the atomizing core is mounted in the cavity;
• the flue is in communication with the air passage, and the air passage communicates with a portion of the cavity located below the atomizing core;
• the atomizing core includes a heating wire, a porous body, a pair of extending walls extending upward from two longitudinal sides of the porous body, and a transverse through-groove enclosed by the porous body and a pair of the extending walls;
• wherein the atomizing core is provided with a seepage surface and an atomizing surface;
• the seepage surface is in communication with and faces the e-liquid passage;
• a bottom surface of the porous body serves as the atomizing surface, and the atomizing surface is exposed in the cavity and provided with the heating wire.

A cartridge, comprising:

• a cartridge tube provided with a flue and a liquid storage chamber;
• a heating assembly installed in the cartridge tube and sealing the liquid storage chamber, wherein a cavity is formed by being recessed upward at a bottom of the heating assembly, the heating assembly includes an atomizing core mounted in the cavity;
• a seepage surface of the atomizing core is in communication with with the liquid storage chamber, and an atomizing surface of the atomizing core faces away from the liquid storage chamber and is exposed in the cavity;
• and
• a base fixed to the cartridge tube to limit the heating assembly within the cartridge tube;
• wherein the base includes a substrate, a first step formed by extending upward from the substrate, a second step formed by extending upward from the first step, and a recessed portion formed by recessing downward from a middle of the second step;
• an upper surface of the first step abuts against a lower surface of the heating assembly to support the heating assembly, and an atomizing cavity of the heating assembly is formed between the recessed portion and the atomizing surface of the heating assembly.