Thermoelectrically powered wrist watch
First Claim
Patent Images
1. A thermoelectrically powered wrist watch comprising:
- a case back, a case body whose temperature comes into equilibrium with an outside air temperature and which is made of a metallic material, a thermoelectric element for thermally converting a temperature difference to an electric energy, thermal input means composed of an endothermic plate disposed under a bottom portion of the case back and a heat transfer pin, and thermal conduction means comprised of at least one metallic member in contact with one end of the thermoelectric element;
wherein at least two thermal conduction preventive packings each made of a plastic or rubber material are disposed between the endothermic plate and the case back and between the case back and the thermal conduction means, respectively, as viewed in vertical section; and
wherein the heat transfer pin is inserted into through-holes formed in the thermal conduction preventive packings, thermal conduction means and case back and, by mechanical fixing means such as caulking or screwing, the heat transfer pin and the thermal conduction means are fixed to thereby bring the thermal input means, thermal conduction means, thermal conduction preventive packings and case back into pressure contact with one another.
1 Assignment
0 Petitions
Accused Products
Abstract
A thermoelectriocally powered wristwatch has an endothermic plate affixed to the underside of a case back for absorbing external heat, and a thermal conduction plate for conducting the absorbed heat through heat transfer pins to a thermoelectric conversion element which converts the absorbed heat to electricity for powering the wristwatch. Thermal conduction preventive packings formed of a material having low thermal conductivity, such as plastic or rubber, are interposed between the endothermic plate and the case back and between the case back and the thermal conduction plate.
-
Citations
9 Claims
-
1. A thermoelectrically powered wrist watch comprising:
- a case back, a case body whose temperature comes into equilibrium with an outside air temperature and which is made of a metallic material, a thermoelectric element for thermally converting a temperature difference to an electric energy, thermal input means composed of an endothermic plate disposed under a bottom portion of the case back and a heat transfer pin, and thermal conduction means comprised of at least one metallic member in contact with one end of the thermoelectric element;
wherein at least two thermal conduction preventive packings each made of a plastic or rubber material are disposed between the endothermic plate and the case back and between the case back and the thermal conduction means, respectively, as viewed in vertical section; and wherein the heat transfer pin is inserted into through-holes formed in the thermal conduction preventive packings, thermal conduction means and case back and, by mechanical fixing means such as caulking or screwing, the heat transfer pin and the thermal conduction means are fixed to thereby bring the thermal input means, thermal conduction means, thermal conduction preventive packings and case back into pressure contact with one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a case back, a case body whose temperature comes into equilibrium with an outside air temperature and which is made of a metallic material, a thermoelectric element for thermally converting a temperature difference to an electric energy, thermal input means composed of an endothermic plate disposed under a bottom portion of the case back and a heat transfer pin, and thermal conduction means comprised of at least one metallic member in contact with one end of the thermoelectric element;
Specification