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AssigneeCitizen Watch Co., Ltd.
InventorsShigeru Watanabe, Atsushi Murakami, Yumiko Sakamaki
Estimating the term…
A thermoelectric power generating timepiece (1) comprises a dial (30), a movement (40), and a heat conduction sheet (50), provided within an enclosed space, defined by a case (10) made of metal, with a glass (20) fixedly attached thereto, and a case back (70), and further comprises a thermoelectric element (60), housed in a gap between the heat conduction sheet (50) and the case back (70). The case back 70 is made of two kinds of materials each having a thermal conductivity differing from that of the other. The case back (70) is made up of a heat conducting part (71) made of material, such as metal, and the like, having a high thermal conductivity, and formed in a shape larger in outer size than the thermoelectric element (60), so as to be disposed opposite to the thermoelectric element (60), and a heat insulating part (72) made of material having a low thermal conductivity such as plastics, and the like, and formed so as to be disposed on the outside of the heat conducting part (71).
A thermoelectric power generating timepiece comprising a dial, a movement, and a heat conduction sheet, installed within a hermetically enclosed space, defined by a case made of metal with a glass fixedly attached thereto, and a case back, further comprising a thermoelectric element for serving as a power supply source of said movement, housed in a gap between the heat conduction sheet and said case back
A thermoelectric power generating timepiece comprising a dial, and a movement, installed within a hermetically enclosed space, defined by a case made of metal with a glass fixedly attached thereto, and a case back, further comprising a thermoelectric element for serving as a power supply source of the movement, housed in a gap between the movement and said case back through the intermediary of an upper protection sheet and a lower protection sheet, in contact with the movement, and the case back, respectively, wherein a heat conduction sheet annular in shape, having an opening larger in size than the outside shape of said thermoelectric element, is disposed so as to be in contact with a face of the upper protection sheet, on the side in contact with the thermoelectric element, and so as to be sandwiched between the case and said case back.
Dependencies are inferred from the claim text.