Abstract: An electric toothbrush head includes a brush body and an insertion block. An upper part of the brush body is provided with bristles and a lower part of the brush body is provided with an insertion chamber. The insertion block is inserted into the insertion chamber and defines an insertion channel for inserting of a movement therein, wherein an outer wall of the movement abuts an inner wall of the insertion channel. A connecting section above the insertion channel is provided on an upper part of the insertion block. An adhesive section is provided on an upper part of the connecting section for fixing an outer wall of the adhesive section to an inner wall of the insertion chamber. A clamping section is provided on a lower part of the connecting section for fixing an outer wall of the clamping section to the inner wall of the insertion chamber.

Abstract: The present disclosure discloses an electronic cigarette with a rotatable mouthpiece. The electronic cigarette comprises a battery assembly and an atomizing assembly. The battery assembly comprises a battery and a casing. The atomizing assembly comprises a mouthpiece, an outer sleeve, and a cartridge. The outer sleeve is hinged to casing through a cardinal axis. The cardinal axis is accommodated in a guide rail groove, and is slidable along the guide rail groove. The sliding direction of the cardinal axis is the same as the axial direction of the casing. After using the electronic cigarette, the mouthpiece could be rotated and stored in the casing conveniently, and keep cleaning.

Abstract: The present disclosure provides a driving method, a driving assembly, and an electronic cigarette having the same. The driving method includes: acquiring an output voltage of a power supply of the electronic cigarette; calculating a duty ratio meeting a preset power using the detected output voltage and an effective resistance of a heating assembly; and driving a current circuit of the heating assembly of the electronic cigarette to switch on or switch off according to the duty ratio, so that the heating assembly operates under the preset power. According to the present disclosure, the cost of the electronic cigarette can be lowered, a relatively stable TPM (Total Particulate Matter) value can be output, and the size of the electronic cigarette can be reduced.

Abstract: Provided herein is a transmission system including: a housing; a pair of double-layered gears for transmitting a power from a motor to a screw driver shaft defining a transmission axis, the pair of gears including a first bigger gear and a first smaller gear; a torque cup for covering a leading end portion of the housing through which the shaft is extended from the housing; a first set of planetary gears for driving the shaft, regularly surrounding and meshing the first smaller gear; and a first ring gear for sliding axially against the housing and meshing the first bigger gear and/or the first set of planetary gears; wherein the torque cup can be turned to force the first ring gear to slide axially.

Abstract: Provided herein is a transmission system including: a housing; a pair of double-layered gears for transmitting a power from a motor to a screw driver shaft defining a transmission axis, the pair of gears including a first bigger gear and a first smaller gear; a torque cup for covering a leading end portion of the housing through which the shaft is extended from the housing; a first set of planetary gears for driving the shaft, regularly surrounding and meshing the first smaller gear; and a first ring gear for sliding axially against the housing and meshing the first bigger gear and/or the first set of planetary gears; wherein the torque cup can be turned to force the first ring gear to slide axially.

Abstract: The present disclosure discloses an electronic cigarette with a rotatable mouthpiece. The electronic cigarette comprises a battery assembly and an atomizing assembly. The battery assembly comprises a battery and a casing. The atomizing assembly comprises a mouthpiece, an outer sleeve, and a cartridge. The outer sleeve is hinged to casing through a cardinal axis. The cardinal axis is accommodated in a guide rail groove, and is slidable along the guide rail groove. The sliding direction of the cardinal axis is the same as the axial direction of the casing. After using the electronic cigarette, the mouthpiece could be rotated and stored in the casing conveniently, and keep cleaning.

Abstract: The present disclosure provides an electronic cigarette having an invertible mouthpiece. The electronic cigarette includes a battery assembly and an atomization assembly, the battery assembly including a battery and a housing, and the atomization assembly including a mouthpiece, an outer sleeve and a cartridge. The atomization assembly and the battery assembly are in pluggable connection. The housing defines a groove in the upper part thereof. The outer sleeve has a tail end accommodated into the groove in a working state. The atomization assembly is inverted and the mouthpiece is accommodated into the groove in a receiving state. After the electronic cigarette is used, the mouthpiece can be inverted conveniently and can be completely hidden in the housing to be protected against contamination.

Abstract: The present disclosure provides a driving method, a driving assembly, and an electronic cigarette having the same. The driving method includes: acquiring an output voltage of a power supply of the electronic cigarette; calculating a duty ratio meeting a preset power using the detected output voltage and an effective resistance of a heating assembly; and driving a current circuit of the heating assembly of the electronic cigarette to switch on or switch off according to the duty ratio, so that the heating assembly operates under the preset power. According to the present disclosure, the cost of the electronic cigarette can be lowered, a relatively stable TPM (Total Particulate Matter) value can be output, and the size of the electronic cigarette can be reduced.