A personal care device, such as an electric toothbrush, has a handle having a longitudinal axis and a treatment head connected to a carrier. The carrier extends within the handle and is mounted at the handle for pivoting motion around a pivot axis against a restoring spring force. A drive unit, such as a linear actuator, is mounted on the carrier, and at least one electrical connector is arranged between the handle and the carrier to convey electrical energy from an energy source fixedly mounted with respect to the handle to the drive unit. The electrical connector can be realized as an elastic metal sheet element having a spring constant for providing at least a part of the restoring spring force.

A system for classifying the usage of a handheld consumer device having a sensor and an analyzer. The sensor determines usage data at successive time instants and provides a temporally successive sequence of usage data during a usage session. The analyzer classifies the usage of the device with respect to at least one set usage classes and assembles a temporally successive sequence of input tuples of usage data relating to a predetermined time period of the usage session, each of the input tuples having at least one element representing the usage data at the respective time instant and for inputting the sequence of input tuples into at least one artificial neural network arranged to output at least one output tuple comprising a number of elements in accordance with the number of usage classes, each element of the output tuple representing a prediction value that the usage of the consumer device at the given time instant relates to a respective usage class.

A personal care device, such as an electric toothbrush, has a handle having a longitudinal axis and a treatment head connected to a carrier. The carrier extends within the handle and is mounted at the handle for pivoting motion around a pivot axis against a restoring spring force. A drive unit, such as a linear actuator, is mounted on the carrier, and at least one electrical connector is arranged between the handle and the carrier to convey electrical energy from an energy source fixedly mounted with respect to the handle to the drive unit. The electrical connector can be realized as an elastic metal sheet element having a spring constant for providing at least a part of the restoring spring force.

A toothbrush including a chassis assembly, an output shaft configured to connect to a brush head and extending at least in part through a portion of the chassis assembly, a power train assembly operably connect to the output shaft, where the power train assembly oscillates the output shaft. The toothbrush also includes a fluid connector operably coupled to the chassis assembly and fluidly coupled to the output shaft via the power train assembly. The fluid connector rotates 360 degrees relative to the chassis assembly.

A dental treatment appliance includes a treatment system which transmits a pulsed signal towards the oral cavity and receives a signal returned from the oral cavity. A controller actuates the treatment of the oral cavity of the user depending on the received signal.

An electric toothbrush for brushing teeth vertically is disclosed. Forward and backward swing of the brush head (9) is realize through a spatial transmission mechanism to simulate the vertical brush action process of real manual brush brushing. The transmission includes a normal cam (2), a main support (3), a slide block (4), a rolling ball (5), a slide block limiting cylinder (6), a reverse cam cylinder (7) and a transmission housing (8). The input end of the positive cam (2) is sleeved on the rotating shaft of the motor (1), and the output end of the reverse cam cylinder (7) is connected with the brush head (9) of the electric toothbrush. A groove (21) is arranged on the positive cam (2), and the positive cam (2) drives the reverse cam cylinder (7) through the cooperation of the slide block (4) and the ball (5).

An electric toothbrush for brushing teeth vertically is disclosed. Forward and backward swing of the brush head (9) is realize through a spatial transmission mechanism to simulate the vertical brush action process of real manual brush brushing. The transmission includes a normal cam (2), a main support (3), a slide block (4), a rolling ball (5), a slide block limiting cylinder (6), a reverse cam cylinder (7) and a transmission housing (8). The input end of the positive cam (2) is sleeved on the rotating shaft of the motor (1), and the output end of the reverse cam cylinder (7) is connected with the brush head (9) of the electric toothbrush. A groove (21) is arranged on the positive cam (2), and the positive cam (2) drives the reverse cam cylinder (7) through the cooperation of the slide block (4) and the ball (5).

A teeth cleaning system, which provides improved coverage or brushing area. The system includes an actuated tray comprises brushing elements. The brushing elements may be positioned to engage the front, rear, and top surfaces of the upper and lower jaw teeth. The actuation may be configured to oscillate the tray in a lateral direction which may brush all the surfaces of teeth simultaneously. Some embodiments include a higher density of bristles which increases the effectiveness of brushing. In addition, aspects of the system reduce the time spent brushing teeth.

A wear-out assessment for an oral care system (14) (e.g. an oral cleaning device) is disclosed. A sensor unit (16) of the oral care system is adapted to provide a sensor signal related to a cleaning efficacy of a cleaning function of the oral care system. The sensor unit (16) may be, or may be coupled to, a component which is used during execution of an oral care function of the device, for example a sensor for detecting cleaning progress in the mouth, or a component which drives a cleaning or treatment action in the mouth. The sensor signal (20) is used for performing a wear-out assessment via monitoring characteristics of a signal which is indicative of progress of the oral cleaning efficacy during an operation session (e.g. a clean level in the mouth) and monitoring a length of time that it takes for a certain threshold of efficacy to be reached in a session. If the length of time is over a certain threshold, this can be an indication that the relevant components of the oral care system are wearing out.

Disclosed by the present invention are a swing motor and an electronic device, the swing motor comprising a seat; at least two movable members, comprising a first movable member and a second movable member arranged to be spaced apart, wherein the first movable member and the second movable member bear opposite electromagnetic thrusts; elastic support members that correspond one-to-one to the movable members, comprising a first elastic support member and a second elastic support member, wherein the first movable member is mounted onto the seat by means of the first elastic support member, and the second movable member is mounted onto the seat by means of the second elastic support member; further comprised is a twisting elastic member, one end of the twisting elastic member being connected to the first movable member or the second movable member, and the other end being connected to an executing member.