Mouthpiece assembly, atomizer and electronic cigarette having same

A mouthpiece assembly for an electronic cigarette, comprising:

• a mouthpiece, the mouthpiece comprising a sucking end, a connecting end, and an air passage, the connecting end being configured for connecting with an external component, the sucking end defining an air outlet, the connecting end defining an air inlet, both the air inlet and the air outlet being in communication with the air passage;
• wherein the mouthpiece assembly further comprises a partition element provided in the air passage, the partition element dividing the air passage into an air intake chamber and an air outlet chamber, the mouthpiece further comprises a sidewall defining at least one first through hole and at least one second through hole, the at least one first through hole is in communication with the air intake chamber, the at least one second through hole is in communication with the air outlet chamber, the mouthpiece assembly further comprises an air adjusting ring nesting the mouthpiece, the air adjusting ring defines at least one gap, and the air adjusting ring is rotatable relative to mouthpiece, so that an overlapped area among the at least one first through hole, the at least one gap, and the at least one second through hole can be changed, thus adjusting an output of the air outlet;
• wherein a sealing ring is between the air adjusting ring and the mouthpiece, the sealing ring is configured for preventing air from leaking from a gap between the mouthpiece and the air adjusting ring;
• and
• wherein the sealing ring nests a part of the mouthpiece defining the at least one second through hole, and the air adjusting ring is coupled to the sealing ring via interference fit.

A mouthpiece assembly for an electronic cigarette, comprising:

• a mouthpiece, the mouthpiece comprising a sucking end, a connecting end, and an air passage, the connecting end being configured for connecting with an external component, the sucking end defining an air outlet, the connecting end defining an air inlet, both the air inlet and the air outlet being in communication with the air passage;
• wherein the mouthpiece assembly further comprises a partition element provided in the air passage, the partition element dividing the air passage into an air intake chamber and an air outlet chamber, the mouthpiece further comprises a sidewall defining at least one first through hole and at least one second through hole, the at least one first through hole is in communication with the air intake chamber, the at least one second through hole is in communication with the air outlet chamber, the mouthpiece assembly further comprises an air adjusting ring nesting the mouthpiece, the air adjusting ring defines at least one gap, and the air adjusting ring is rotatable relative to mouthpiece, so that an overlapped area among the at least one first through hole, the at least one gap, and the at least one second through hole can be changed, thus adjusting an output of the air outlet;
• wherein a flexible element is provided at the connecting end, the flexible element is arranged in the air intake chamber, the flexible element keeps the air inlet in communication with the at least one first through hole, and the flexible element is configured for achieving a hermetic connection between the connecting end and the external component;
• and
• wherein the partition element defines a connecting hole, the flexible element further comprises an extension end matching with the connecting hole, and the extension end is engaged in the connecting hole, so that the flexible element is fixed.