THERMOELECTRIC GENERATING DEVICE

摘要

A thermoelectric generating device (10) comprises a tubular coupling (12) for coupling to a pipeline. The coupler (12) carries on its external surface thermoelectric elements (41) which together form a generator (18). The elements (41) are arranged on the coupler (12) in the form of long narrow strips (20) each extending longitudinally of the coupler (12) with adjacent strips (20) substantially in circumferential contiguity and each strip (20) is bonded to the coupler (12) either by solder or by a thermally conductive epoxy. The elements (41) in each strip (20) are thermally in parallel and electrically in series.