Capacitive coupling arrangement for a faucet

E - Fixed Constructions – 03 – C

Patent

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Details

E03C 1/05 (2006.01) F16K 31/02 (2006.01) G01D 5/24 (2006.01) H03K 17/96 (2006.01)

Patent

CA 2708577

A faucet (10) includes a spout (12), a passageway that conducts fluid flow through the spout (12), a electrically operable valve (22) located within the passageway, a manual valve (20) located within the passageway in series with the electrically operable valve, and a manual handle (14) that controls the manual valve (20). The faucet (10) also includes a first touch sensor (26) on the manual valve handle (14), a second touch sensor (28) on the spout (12), a capacitive sensor (30) directly coupled to one of the first and second touch sensors (26, 28) and capacitively coupled to the other of the first and second touch sensors (26, 28), and a controller (24) coupled to the capacitive sensor (30). The controller (24) is configured to monitor the output signal from the capacitive sensor (30) and to distinguish between a user tapping one of the spout (12) and the manual valve handle (14), a user grabbing the spout (12), and a user grabbing the manual valve handle (14). The controller (24) is also coupled to the electrically operable valve (22) to control the electrically operable valve (22) is response to the output signal from the capacitive sensor (30).

Un robinet (10) comprend un col-de-cygne (12), une voie de passage qui oriente l'écoulement une électrovanne (22) située à l'intérieur de la voie de passage, une vanne manuelle (20) disposée à l'intérieur de la voie de passage en série avec l'électrovanne, et un levier manuel (14) qui commande la vanne manuelle (20). Le robinet (10) comprend aussi un premier capteur tactile (26) sur le levier de vanne manuel (14), un second capteur tactile (28) sur le col-de-cygne (12), un capteur capacitif (30) directement couplé à l'un d'entre les premier et second capteurs tactiles (26, 28) et couplé de manière capacitive à l'autre des premier et second capteurs tactiles (26, 28), et un contrôleur (24) couplé au capteur capacitif (30). Le contrôleur (24) est configuré pour surveiller le signal de sortie émis par le capteur capacitif (30) et pour faire une distinction entre un utilisateur tapotant sur l'un d'entre le col-de-cygne (12) et le levier de vanne manuel (14), et un utilisateur saisissant le col-de-cygne (12), et un utilisateur saisissant le levier de vanne manuel (14). Le contrôleur (24) est également couplé à l'électrovanne (22) pour contrôler l'électrovanne (22) en réaction au signal de sortie émis par le capteur capacitif (30).

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