Abstract: A head module capable of reciprocal rotation for an electric cleaning apparatus comprises cleaning elements, a housing and a driven rod disposed in a hollow inner cavity of the housing, wherein the rod is provided with a hollow cavity body for accommodating a drive shaft; at least one gap is provided in a region surrounding the hollow cavity body; at least one inner side notch is distributed on a side wall of the inner cavity, for accommodating a protrusion; the rod further comprises a partially cylindrical or conical cavity body region. When the drive shaft is not yet inserted into the rod, there is a gap between the notch and the protrusion in a direction perpendicular to the rotation axis (L1) of the drive shaft. The length of the gap is greater than or equal to the amount of single-side interference between the rod and the drive shaft.

Abstract: Provided is a personal cleaning care appliance comprising: a driver (110) of said appliance comprises a transducer (130), a driving coil (114), a driving coil iron core (115), and a driver bracket (112, 113). The transducer comprises a drive shaft (111), a transducer elastic element retainer (124), permanent magnets (116, 117) arranged on the left and right sides of the longitudinal axis of the drive shaft, permanent magnet brackets (118, 119) fixedly connecting the permanent magnets, transducer transmission arms (125, 126), and transducer elastic elements (122, 123).

Abstract: Provided is a cleaning device for personal cleaning and care, comprising a cleaning device housing detachably connected to a handle housing, a bracket for supporting the cleaning device, a cleaning element carrier and cleaning elements distributed on the cleaning element carrier, a passive assembly, and a cleaning device transducer.

Abstract: A brush head for performing reciprocating rotation comprises a driving wheel and a housing on which a top hole and/or a central through hole are/is distributed in a centering manner. The center line(s) of the holes and a rotation axis (L1) of a driving shaft are located at a same line, and the driving shaft penetrates through the central through hole. The fitted region of the driving shaft and the driving wheel enters the through holes distributed on the driving wheel to link the driving shaft and the driving wheel fixedly. A driven part matching a driving part is distributed on a protrusion of the brush disc on which a hollow region is formed. The driving shaft penetrates through or enters the hollow region and limits the brush disc to move. The brush disc is incapable of performing reciprocating rotation when the driving shaft is not installed or is damaged.

Abstract: A head structure of a brush appliance comprises a frame movably connected with a head driving shaft, driving bristle retainers connected with and driven by the head driving shaft, and driven bristle retainers which and the driving bristle retainers are alternatively arranged with each other. In the head structure, the driven bristle retainers are driven by the driving bristle retainers from the frame in a constrained mode and move around a respective motion axis. The driving bristle retainers have protrusions. The driven bristle retainers have bevel surfaces which correspondingly cooperate with the protrusions. At least one driven point on at least one of bevel surfaces is closer to the driving bristle retainers than a contact point or a contact line or a contact surface of the at least bevel surface and the corresponding protrusions. Thereby the driven bristle retainers are driven by the driving bristle retainers in the moving process.

Abstract: A device with controllable switch terminal voltage, comprising: a switch signal unit for outputting a corresponding switch signal according to the state of a switch, wherein the switch is coupled between the switch signal unit and an output of a power supply; a biasing unit coupled to the switch signal unit for outputting a bias voltage to the switch signal unit; wherein when the switch is open and a conductive liquid and/or the stream of conductive liquid exists inside the switch, the biasing unit cooperates with the switch signal unit so as to control the terminal voltage of the switch and the current flowing through the switch. The disclosed switch design allows the switch terminal voltage to be less than 1V when the switch is opened, which greatly depresses the electrochemical reaction of the switch, thus prolonging the switch life, and avoiding the possibility of hydrogen explosion.

Abstract: A personal electric cleaning tool comprises: a handle accommodating a driving element therein; a head connected with a supporting body supporting a cleaning element, the supporting body defining a first engaging shape; and a transmission rod, one end thereof far away from the head being operably connected to the driving element and the other end thereof near the head being fixedly provided with a driving wheel defining a second engaging shape matched with the first engaging shape, so that the supporting body rotates in a reciprocating manner along with the driving wheel as the transmission rod is driven by the driving element, wherein one of the first engaging shape and the second engaging shape is a shape defined by two conical tooth surfaces facing each other on one bevel gear, while the other one is a shape defined by one conical tooth engaged with the two conical tooth surfaces.

Abstract: A head structure of a brush appliance comprises a frame movably connected with a head driving shaft, driving bristle retainers connected with and driven by the head driving shaft, and driven bristle retainers which and the driving bristle retainers are alternatively arranged with each other. In the head structure, the driven bristle retainers are driven by the driving bristle retainers from the frame in a constrained mode and move around a respective motion axis. The driving bristle retainers have protrusions. The driven bristle retainers have bevel surfaces which correspondingly cooperate with the protrusions. At least one driven point on at least one of bevel surfaces is closer to the driving bristle retainers than a contact point or a contact line or a contact surface of the at least bevel surface and the corresponding protrusions. Thereby the driven bristle retainers are driven by the driving bristle retainers in the moving process.