In an electronic cigarette, separate cartridge and vaporizer units are provided. The cartridge unit may have a cartridge tube containing a liquid with a seal sealing the liquid within the cartridge tube. The vaporizer unit may have a piercer and a heater, with the front side of the vaporizer unit moveable into engagement with the cartridge unit, causing the piercer to pierce the seal in preparation for use of the electronic cigarette. A battery may be connected to a back side of the vaporizer unit. The vaporizer unit may also have and an electronic circuit electrically connected to the heater and to an inhalation sensor.於一電子香煙中,提供分離之筒單元和噴霧器單元。所述筒單元可具有一筒管,所述筒管含有一液體,並以一密封件將此液體密封於所述筒管內。所述噴霧器單元可具有一鑽孔器及一加熱器,所述噴霧器單元之前側可移動地與所述筒單元接合,致使所述鑽孔器刺穿此密封件,以為使用此電子香煙做準備。一電池係可與所述噴霧器單元之後側連接,所述噴霧器單元亦可具有一電子電路,並電性連接至所述加熱器及一吸入感應器。20‧‧‧電子香煙22‧‧‧筒單元24‧‧‧噴霧器單元26‧‧‧連接器28‧‧‧環形物30‧‧‧外套管32‧‧‧出口/入口34‧‧‧筒管40‧‧‧後端46‧‧‧支架50‧‧‧手臂基座52‧‧‧手臂
