Abstract: The present invention discloses an electronic cigarette having a light cap (2) permitting light transmission, the light cap (2) has a circular lid (22) having a top exterior surface (223) coated with an opaque layer (226). Narrow annular light is allowed to transmit through a peripheral annular region (222) of the circular lid (22) and emit out of the electronic cigarette when users are smoking.

Abstract: Disclosed is an anti-leakage liquid storage device for electronic cigarette, including a cylindrical liquid storage cup, at least two locking members arranged at an inner wall of a liquid outlet end of the liquid storage cup, a liquid percolation piece having a plurality of liquid percolation holes and having a circular edge which engages with an internal circumferential surface of the liquid outlet end of the liquid storage cup, and a filter piece with one side thereof abutting against the liquid percolation piece; wherein the other side of the filter piece abuts against an annular pressing plate, the annular pressing plate has a circular edge which engages with the internal circumferential surface of the liquid outlet end; the annular pressing plate is locked by the at least two locking members and tightly presses the filter piece and the liquid percolation piece.

Abstract: An electronic cigarette capable of temperature control and a temperature control method therefor, the electronic cigarette comprises a casing (10), a liquid storage device (101) within the casing (10), an atomizing assembly, a power supply (102), and a circuit control board (103) having a smoking switch SW, the atomizing assembly comprises a heating unit and leads thereof made from thermo-sensitive material whose resistance varies along with the temperature in certain proportion, the circuit control board (103) comprises a power supply managing module (104) which determines temperature of the heating unit and leads thereof by continuously detecting their resistance when the smoking switch SW on, and sends corresponding control signal to make the heating unit and leads thereof connect to/disconnect from the power supply (102) to achieve temperature control, pernicious gas and burnt matter produced by heating unit dry-burn caused by lack of e-liquid threatening users' health is prevented.

Abstract: Disclosed is an electronic cigarette, wherein a first connection portion (1) is arranged at an end of a casing tube (101) of a battery stick (10) adjacent to a vaporizer assembly, a second connection portion (2) is arranged at an end of a vaporizer tube body (201) adjacent to the battery stick (10), a third connection portion (3) is arranged at an end of a casing tube (30) of a vaporizer (20) adjacent to the battery stick (10). The second connection portion (2) and the first connection portion (1) abut against each other to be connected, the third connection portion (3) is detachably connected to the first connection portion (1) by means of a screw thread.

Abstract: A dual-voltage electronic cigarette control assembly, comprising a casing (4) of the control assembly, a control circuit board (2), and a key switch (3), wherein the control circuit board (2) is fixed into the casing by a fixing unit, and the key switch is electrically connected to the control circuit board. The control circuit board (2) is provided with a power managing module configured for outputting a high preset voltage or a low preset voltage and the power managing module comprises a boost (step-up) unit, a buck (step-down) unit or a buck-boost unit. The dual-voltage electronic cigarette control assembly of the present invention can help users to enjoy different vapor amounts according to their personal preference and enhances the power efficiency.

Abstract: Disclosed is an electronic cigarette including a battery connector and a vaporizer connector, wherein the battery connector comprises two recessed L-shaped grooves, and the vaporizer connector comprises two symmetrically-arranged protrusions. After the battery connector has been twist-lock connected with the vaporizer connector, the L-shaped grooves of the battery connector tightly engage with the protrusions of the vaporizer connector, positive and negative electrodes of a battery assembly are electrically connected to two electrodes of a vaporizer electrode assembly.

Abstract: The invention discloses an oval-shaped electronic cigarette and manufacturing process thereof. Inner housing of vaporization assembly is arranged inside outer housing of vaporization assembly and sleeved on vaporization assembly which comprises e-cigarette liquid cup and vaporizer having an outer wall in close fit with inner wall of the inner housing of vaporization assembly. A space is formed between outer wall of the e-cigarette liquid cup and inner wall of the inner housing of vaporization assembly to serve as a vapor flow channel. The inner housing of vaporization assembly is arranged at one end with vapor flow outlet, the outer edge of which is hermetically connected with and pressed against bell-mouth structure formed on the mouthpiece.

Abstract: Disclosed is a cotton-free electronic cigarette preventing liquid spill, comprising a vaporizer assembly, a mouthpiece assembly and a battery control assembly. The vaporizer assembly comprises an outer sleeve, a liquid storage cup, a vaporizer unit and a heat insulation sleeve. An air passage is formed between an exterior longitudinal flat surface of the liquid storage cup and the heat insulation sleeve. The liquid storage cup is sheathed with the outer sleeve, an inner wall of the outer sleeve and an exterior arc surface of the liquid storage cup forms an arc-shaped slit. An inner wall of the outer sleeve and the exterior longitudinal flat surface of the liquid storage cup forms a vapor flow passage. The vapor flow passage is interconnected to the arc-shaped slit. The mouthpiece assembly is fixed to one end of the outer sleeve to seal an outlet of the arc-shaped slit.

Abstract: A vaporizer device of cotton-free e-cigarette, comprising: an outer sleeve, a supporting frame arranged inside the outer sleeve, a vaporizer unit fixed into the supporting frame, a filter piece and a liquid percolation piece sequentially connected to one end of the supporting frame, and a fixation seat connected to other end of the supporting frame. A backflow groove is made inside the supporting frame to prevent leakage caused by the backflow of residual liquid. The filter piece is made of heat-resisting material. The liquid percolation piece is connected at one end with a liquid storage cup by snap joints. Another end of the filter piece keeps a safe distance away from the vaporizer unit to avoid being burned. The liquid storage cup and the outer sleeve are assembled to form a slit therebetween to prevent the backflow of residual liquid.

Abstract: Disclosed is a cotton-free electronic cigarette, a heat-insulating and heat-dissipating component of a vaporizer device of the cotton-free electronic cigarette, and a method for heat insulation and heat dissipation. The heat-insulating and heat-dissipating component consists of a heat insulation sleeve and a vapor flow passage. The heat insulation sleeve is provided inside an outer pipe and outside a vaporizer unit. The heat insulation sleeve, the outer pipe and the vaporizer unit have a same central longitudinal axis. A method for heat insulation and heat dissipation of the cotton-free electronic cigarette comprises: dissipating heat generated from the vaporizer unit along the vapor flow passage formed between an exterior longitudinal flat surface of a liquid storage cup and the heat insulation sleeve, and discharging the heat outside the cotton-free electronic cigarette through thermal conductivity of the heat insulation sleeve.

Abstract: The present invention relates to a liquid storage device for a cotton-free electronic cigarette, comprising a liquid storage cup for storing cigarette liquid, and a liquid percolation piece having a plurality of liquid percolation holes; wherein the liquid storage cup has a cylindrical shape, an inner wall of a liquid outlet end of the liquid storage cup is provided with at least two locking members, the liquid percolation piece has a circular edge which engages with an internal circumferential surface of the liquid outlet end of the liquid storage cup, the liquid percolation piece is inserted into the liquid outlet end of the liquid storage cup and is passed through the at least two locking members to be locked. The liquid storage device ensures the smooth supply of cigarette liquid and prevents cigarette liquid leakage. The liquid storage device of the present invention can be easily and efficiently assembled.

Abstract: The present invention relates to an electronic cigarette for convenient injection of cigarette liquid, manufacturing method thereof, and a method for injecting cigarette liquid into the electronic cigarette. A liquid injection hole is opened at a bottom of a liquid storage cup of the electronic cigarette, and the liquid injection hole is sealed by a sealing element which is self-closing once an injection device has been pulled out from the sealing element. The components of the electronic cigarette of the present invention can be assembled together first prior to the injection of cigarette liquid. Therefore, the problem of leakage and contamination of cigarette liquid during the manufacture of existing electronic cigarettes can be overcome. The automated injection of cigarette liquid can be carried out at places where the electronic cigarettes are sold.