Wearable thermoelectric generator with hollow structure base and manufacture method thereof

Abstract

The invention discloses a wearable thermoelectric generator with a hollow structure base and a manufacture method thereof. The thermal end face of a thermoelectric block array is connected with the copper electrode of a flexible printed circuit board, and the cold end face is connected with a copper conductive sheet. The thermoelectric block array is connected in series or serial-parallel with the cold end copper conductive sheet through the copper electrode. The manufacture method comprises the steps of flexible printed circuit board manufacturing and solder coating, thermoelectric block positioning and welding, cold end copper conductive sheet positioning and solder coating, thermoelectric generator cold end assembly and welding and the like. According to the invention, the circuit board increases the flexibility of the wearable thermoelectric generator; the number of rows of the thermoelectric block array and the number of thermoelectric blocks within each row are changed to meet the needs of different driving devices; a thermoelectric block positioning plate is used to prevent P-type and N-type thermoelectric blocks from moving during a welding process to ensure good contact with a conductive electrode; and the cold end copper conductive sheet is three-dimensionally printed and positioned, so that the thermoelectric blocks and the cold end copper conductive sheet are accurately corresponding in position and in good contact.

Description

technical field [0001] The invention relates to a thermoelectric power generation device and a manufacturing method thereof, in particular to a wearable thermoelectric generator with a hollow structure base and a manufacturing method thereof. Background technique [0002] At present, wearable electronic devices are widely used in the monitoring of human body signs, collection of human body activity data and mobile intelligent applications. Existing wearable electronic devices are mainly powered by lithium batteries, and the battery life is limited, which limits the scope of use of wearable electronic devices; at the same time, waste lithium batteries are easy to pollute the environment. The thermoelectric generator is based on the Seebeck effect, which can collect heat energy and convert it into electrical energy. There is a continuous heat exchange between the human body and the surrounding environment. Therefore, the thermoelectric generator can use the temperature differe...

AI Technical Summary

Problems solved by technology

The thermoelectric arm film processed by physical or chemical deposition process has large internal resistance and low output power, and the micro-nano processing equipment is expensive, the manufacturing cost is high and the cycle is long, which is not conducive to mass production

The thermoelectric arm of the screen printing sintering process is processed by the mixed slurry of thermoelectric material powder and organic binder, and the addition of the organic binder makes the performance of the thermoelectric arm produced lower than that of the thermoelectric material directly formed, so the output performance Lower than traditional rigid thermoelectric generators

Images