Vaporizer having vaporization cavity at inner bottom of vaporization core

A vaporizer having a vaporization cavity at an inner bottom of a vaporization core, comprising a housing including a mouthpiece end and a connecting end, wherein the mouthpiece end is provided with a mouthpiece extending downwards and integrally formed with a mouthpiece tube, the connecting end is provided with an opening closed by a bottom cap, the connecting end is capable of being connected with a battery part to form an electronic vaporizing device, wherein a vaporizing assembly is provided inside the housing and is connected between the mouthpiece tube and the bottom cap, a liquid storage chamber is defined between the vaporizing assembly and an inner wall of the housing, the vaporizing assembly comprises a vaporization core and a vaporizing base, a bottom portion of the vaporizing base is disposed on the bottom cap, a lower portion of the vaporization core is inserted in a central accommodation cavity of the vaporizing base, an upper end of the vaporization core is sleeved on a lower end of the mouthpiece tube, the vaporization cavity is provided at the inner bottom of the vaporization core, the vaporization core is provided with a central through-hole extending vertically, the bottom cap is centrally provided with a bottom cap air inlet, the vaporizing base is centrally provided with a vaporizing base inlet hole, the vaporizing base inlet hole is in communication with the vaporization cavity, and the vaporization cavity is in communication with the central through-hole, the mouthpiece tube, and the mouthpiece in an upward direction;

• the vaporizing assembly further comprises an isolation plate placed on an upper surface of the vaporizing base, wherein the isolation plate is provided with an isolation plate central hole, a wall of the lower portion of the vaporization core is integrally engaged into the isolation plate central hole, and the isolation plate is provided on two sides with isolation plate filling through-holes;
• the vaporizing base is provided on two sides with vaporizing base filling through-holes, and the bottom cap is provided with plugs for respectively plugging the vaporizing base filling through-holes at positions corresponding to respective vaporizing base filling through-holes;
• a cover plate is disposed above the bottom cap air inlet, and an outlet opening for the bottom cap air inlet is provided on a side wall of the lower portion of the cover plate, at a position above an inner bottom plate of the bottom cap;
• characterized in that, the vaporization core comprises a sleeve, a liquid guiding member, a heating sheet, and electrode leads, wherein the liquid guiding member is disposed inside the sleeve, the sleeve is provided with side wall through-holes above the vaporizing base, the side wall through-holes are covered by an outer wall of the liquid guiding member, the liquid guiding member is provided with the central through-hole, the heating sheet is disposed at bottom of the liquid guiding member, the electrode leads are disposed on two sides of the heating sheet, a portion of the sleeve below the heating sheet is provided with a bottom cavity which defines the vaporization cavity, and a portion of the sleeve above the liquid guiding member is provided with an empty chamber which defines the vapor chamber.