High frequency electric toothbrush

Details High frequency electric toothbrush High frequency electric toothbrush

A - Human Necessities

61

C

A61C 17/34 (2006.01) B06B 1/04 (2006.01)

Patent

CA 2190147

An electric toothbrush (26) includes a motor (30) and a mechanical oscillator (32) for driving a brush head assembly (24) at high frequencies. The brush head assembly (24) attaches to the mechanical oscillator (32). A motor (30) drives the brush head assembly (24). Control circuitry (34) senses the frequency of oscillation of the mechanical oscillator (32) and controls the frequency of the power applied to the motor (30) to maintain the mechanical oscillator (32) at resonance under a variety of loads imposed during use.

Une brosse à dents électrique (26) comprend un moteur (30) et un oscillateur mécanique (32) pour entraîner un ensemble de tête de brosse (24) à des fréquences élevées. Cet ensemble de tête de brosse (24) est fixé à l'oscillateur mécanique (32). Un moteur (30) entraîne l'ensemble de tête de brosse (24). Un circuit de commande (34) détecte la fréquence d'oscillations de l'oscillateur mécanique (32) et commande la fréquence de la puissance appliquée au moteur (30) pour maintenir l'oscillateur mécanique (32) en résonance sous diverses charges lors de l'utilisation.

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