A handle for an oral-care implement, the handle comprises an electrical motor arranged to drive an output element structured and configured to couple the handle and a head attachable to and detachable from the handle; and a microcontroller for controlling the motor and to cause the output element to vibrate in (a) at least one oral-hygiene mode during which the oral-care implement is being used for an oral-hygiene routine, wherein the output element is vibrating at a substantially constant frequency, and (b) a disinfection mode during which the handle is being disinfected, before or after being used for the oral-hygiene routine, wherein the output element is continuously vibrating at a modulated frequency alternating within a frequency range of between about 140 Hz and about 250 Hz, for a duration of the disinfection mode.

A drive train assembly (200) for a personal care device (10), comprising a torsion spring (210) suspended between a first end mount (220) and a second end mount (230), the torsion spring comprising a first end mounted to the first end mount and a second end mounted to the second end mount, wherein the first and second ends of the torsion spring each comprises a cross flexure spring hinge (250, 260).

Provided is an electric toothbrush head including a brush body and an inserting block. A receiving cavity is provided in a lower part of the brush body and is inserted by the inserting block; the inserting block is provide internally with a machine core channel into which a vibrating- machine core is inserted; a pin is provided in the brush body, is inserted in an upper part of the inserting block, and fixedly connects the upper part of the inserting block with the brush body; a bottom abutment ring is formed on a bottom of the inserting block and is located below the brush body; the upper part of the inserting block is in fixed connection with the brush body via the pin, and the bottom of the inserting block abuts against the bottom of the brush body via the bottom abutment ring.

In one embodiment, an oral care system is disclosed that includes an oral care device and at least one programmable processor. The oral care device includes a head having a reference face, a light source, at least one orientation sensor generating orientation data corresponding to orientation measurements of the reference face during a freeform oral care routine, and at least one optical sensor generating optical sensor data representing optical feedback resulting from the light from the light source being incident upon sections of the oral cavity. The processor, based on the orientation data, determines which optical sensor data corresponds with which of the sections of the oral cavity. For each section of the oral cavity, based on the corresponding optical sensor data, the processor determines an oral care characteristic.

The present invention relates to an electrochemical device for releasing ions, comprising an electrical circuit comprising a first electrode and a second electrode adapted for providing a galvanic cell when the electrodes are exposed to a fluid constituting an electrolyte, and a boost converter adapted for amplifying a potential generated between the first and the second electrode. The electrical circuit further comprises a third electrode connected with an output side of the boost converter, wherein the second and the third electrode constitutes an electrolytic cell powered by the galvanic cell when the electrodes are exposed to a fluid. The present invention further relates to devices, such as a toothbrush or a shaver, adapted for being used in connection with a fluid, comprising such electrochemical device for releasing ions.

A toothbrush having one or more light sources with an electronic interlock control device preventing operation of the light source when the toothbrush is removed from the user's mouth. The electronic interlock control over operation is necessary to prevent accidental eye exposure to the high intensity light source with a wavelength in the range of about 400 nm to about 1000 nm. The light-emitting toothbrush activates upon entering the user's mouth but deactivates immediately when removed, thus protecting the user's eyes from direct exposure to the high power light source contained in the brush head.

A method for manufacturing a brushing part including the following steps: providing the support, pierced with through-holes, passing through the channel formed by the support; forming the tuft of bristles, by assembling a plurality of bristles by one end opposite the free end, so as to form a base of the tuft, so that a diameter of a section of the tuft, in a plane transverse to a direction of extension of the tuft, is greater than a diameter of a through-hole; merging the ends forming the base of the at least one tuft so that an extension of the merged zone in a direction transverse to the direction of extension of the at least one tuft is greater than an extension of the base in the transverse direction before the merging step; inserting the one tuft by force into one of the holes of the channel of the support, depositing glue and filling with resin.

Disclosed are an acoustic wave type electric cleaning and care tool and a pressure warning device for same. Upper and lower drive shaft bearings are fixed on a drive shaft. The upper bearing is fixed in left and right brackets by a fixed surface and is stationary. The lower bearing is fixed in the brackets by a upper fixed surface and perform a relative movement such that the lower bearing is separated from or contact with the upper fixed surface. The alarm device comprises a lever, a light-emitting element and a photosensitive element. The lever is provided with a shielding surface and/or a light-shielding protrusion. Light energy is changed by the change of gap between the shielding surface and/or the light-shielding protrusion and the photosensitive element. The change in electrical performance parameters of the photosensitive element is detected to acquire a load pressure on a cleaning element and realize pressure alarm.

The present disclosure provides a brushhead for a power toothbrush, and the power toothbrush. The brushhead configured for an electric toothbrush, the brushhead being detachably installed on a handle of the electric toothbrush, the brushhead comprising: a brushhead element; and an engaging assembly arranged in the brushhead element and connecting the brushhead element with a driving shaft, wherein the engaging assembly comprises a main body, an accommodating cavity is defined in a first end of the main body along a first direction, the accommodating cavity is configured to accommodate the driving shaft, a material of the brushhead element is different from a material of the main body, and the first direction is a direction from an end of the brushhead element connected with the handle toward an end of the brushhead element away from the handle.