Clock with wireless function
View Patent ↗A timepiece with a wireless function, in which the receiving sensitivity of an antenna is improved and the antenna can reliably receive a prescribed radio wave even in the case in which a watch case or the like made of a conductive metal is used. The timepiece is provided with an antenna that is stored in a housing to receive an external radio wave, a watch case that configures at least a part of the housing, that has at least one portion electrically conductive, and that is separated into a plurality of parts, and an insulating region disposed between at least two parts among the plurality of parts of the watch case to insulate the two parts one from the other.
1. A timepiece with a wireless function comprising:
a conductive watch case body;
a conductive rear cover;
a windshield;
a non-conductive dial plate;
an antenna that is stored in a housing to receive a radio wave from the external having an opening end on each side thereof; and
an insulating region disposed between a dial ring and a lining receiving portion, the lining receiving portion is protruded on an inner peripheral side of the watch case body,
wherein the insulating region is disposed around a section above both opening ends of the antenna.
2. The timepiece with a wireless function as defined in claim 1 , wherein the insulating region is disposed between an upper surface of the lining receiving portion formed on the watch case body and a lower surface of the dial ring disposed on the lining receiving portion.
3. The timepiece with a wireless function as defined in claim 1 , wherein the insulating region is made of an insulating film formed on at least one of the surface of the dial ring and the surface of the watch case body.
4. The timepiece with a wireless function as defined in claim 1 , wherein the insulating region is made of an insulating member disposed between the dial ring and the watch case body.
5. The timepiece with a wireless function as defined in claim 4 , wherein the insulating member is bonded to the dial ring or the watch case body.
6. The timepiece with a wireless function as defined in claim 1 , wherein the insulating region is a region in the lining receiving portion which is above the antenna and between one opening end and the other opening end of the antenna.