초록 ▼

A thermoelectrically-powered wrist watch in which thermal energy picked up by the metal back of the watch casing is transferred to the hot pole of an electrothermal generator housed within the casing. To avoid thermal shunts which cause heat losses and reduce the efficiency of the generator, the met

A thermoelectrically-powered wrist watch in which thermal energy picked up by the metal back of the watch casing is transferred to the hot pole of an electrothermal generator housed within the casing. To avoid thermal shunts which cause heat losses and reduce the efficiency of the generator, the metal carrier for the watch movement is thermally insulated from the upper component of the casing which, in turn, is thermally insulated from the back thereof. In addition or alternatively, the casing back is partially constituted by thermal insulation material.

대표청구항 ▼

A thermoelectrically-powered wrist watch comprising: A a casing having an upper component exposed to the atmosphere and therefore relatively cool and a back structure provided with a metallic section in physical contact with the wrist of the wearer and heated thereby; B an electronic watch movement

A thermoelectrically-powered wrist watch comprising: A a casing having an upper component exposed to the atmosphere and therefore relatively cool and a back structure provided with a metallic section in physical contact with the wrist of the wearer and heated thereby; B an electronic watch movement housed in said casing and including a rechargeable battery to power said movement, said movement including a metallic carrier which is thermally insulated from the upper component of said casing and is also thermally insulated from the metallic section of said back structure; and C an electric generator disposed in said housing to produce a voltage for charging said battery, said generator having a hot pole thermally coupled to said metallic back section and a cold pole thermally coupled to said upper component of the casing.