Electronic atomization device and atomizer thereof

A vaporizer, comprising:

• a liquid storage tube, an inner side wall of the liquid storage tube defining a liquid storage cavity configured to store a vaporizable liquid substrate;
• a sleeve arranged in the liquid storage cavity, an accommodating cavity being arranged in the sleeve, the sleeve having a first surface and a second surface adjacent to the first surface in a circumferential direction, and at least one liquid guiding port on the first surface;
• a vaporization core arranged in the accommodating cavity and configured to heat and vaporize the vaporizable liquid substrate;
• and
• a seal member accommodated in the accommodating cavity and sandwiched between an outer wall of the vaporization core and a side wall of the sleeve, at least one liquid inlet hole that communicates the at least one liquid guiding port with the vaporization core being arranged in the seal member,
• wherein a distance between the first surface that comprises the at least one liquid guiding port and the inner side wall of the liquid storage tube opposite to the first surface is greater than a distance between the second surface having no liquid guiding port and the inner side wall of the liquid storage tube opposite to the second surface, such that the vaporizable liquid substrate in the liquid storage cavity enters the at least one liquid inlet hole of the seal member through the at least one liquid guiding port that is on the first surface of the sleeve to be in contact with the vaporization core.