Heating assembly, vaporizer, and electronic vaporization device

A vaporizer, comprising:

• a liquid storage cavity, configured to store an aerosol-generation substrate;
• and
• a heating assembly, comprising:
• a first substrate, comprising a first surface and a second surface arranged opposite to each other;
• and
• a second substrate, comprising a third surface and a fourth surface arranged opposite to each other, wherein:
• the second surface and the third surface are arranged opposite to each other to form a gap having a capillary effect and a gradually changing height from a first end of the gap to a second end of the gap,
• an edge of the first substrate is provided with a liquid inlet formed thereon or by the edge of the first substrate with another component,
• the gap communicates the plurality of second micropores and the liquid inlet, and
• the second substrate comprises a plurality of second micropores configured to guide the aerosol-generation substrate from the gap to the fourth surface.

An electronic vaporization device, comprising:

• a vaporizer including a liquid storage cavity configured to store an aerosol-generation substrate and a heating assembly;
• and
• a main unit configured to supply electric energy for operation of the vaporizer and control the heating assembly to vaporize the aerosol-generation substrate, wherein the heating assembly comprises:
• a first substrate, comprising a first surface and a second surface arranged opposite to each other, and
• a second substrate, comprising a third surface and a fourth surface arranged opposite to each other, wherein:
• the second surface and the third surface are arranged opposite to each other to form a gap having a capillary effect and a gradually changing height from a first end of the gap to a second end of the gap,
• an edge of the first substrate is provided with a liquid inlet formed thereon or by the edge of the first substrate with another component,
• the gap communicates the plurality of second micropores and the liquid inlet, and
• the second substrate comprises a plurality of second micropores configured to guide the aerosol-generation substrate from the gap to the fourth surface.