Watch case back with an electronic device for wireless charging of a power source
AssigneeETA SA Manufacture Horlogere Suisse
InventorsMarc Schenk, Laurent Mouche
Life of this patent
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Abstract
A removable case back of an electronic or electromechanical watch case, the case back allows the wireless charging or recharging of a power source. The case back includes a first multi-function sub-assembly having a buzzer, an inductive coil on or integrated in a printed circuit board, the inductive coil being covered by a magnetic shield on an inner side of the watch case, and a second multi-function sub-assembly on the first multi-function sub-assembly having an enclosure structure for accommodating the power source, such as a battery or an accumulator.
Claims16
A removable case back of an electronic or electromechanical watch case, the case back including an internal electronic device provided with functions to allow wireless charging or recharging of a power source, the removable case back comprising:
- a first multi-function sub-assembly in which are mounted a buzzer, an inductive coil on or integrated in a printed circuit board, said inductive coil being covered by a magnetic shield on an inner side of the watch case;
- and
- a second multi-function sub-assembly mounted on and in direct contact with the first multi-function sub-assembly, the second multi-function sub-assembly includes an enclosure structure for accommodating the power source.
Dependencies are inferred from the claim text.