A flexible wearable thermoelectric power generation device

Abstract

The invention discloses a flexible wearable thermoelectric power generation device, which comprises: an upper substrate, a lower substrate, copper foil, an upper textile layer, a lower textile layer, a heat insulation layer, P-type and N-type semiconductor particles, and wires; the thermoelectric power generation device consists of From top to bottom are the upper substrate, the upper textile layer, the heat insulation layer, the lower textile layer, and the lower substrate. The even-numbered pairs of P-type and N-type semiconductor particles pass through the upper textile layer, the heat insulation layer, and the lower textile layer. On the copper foil fixed at equal intervals on the lower substrate, the semiconductor particles are connected by wires connected between the upper copper foils to form a semiconductor module. Correspondingly, the semiconductor modules are connected by wires connected between the lower copper foils. For connection, the first piece of copper foil welded with N-type semiconductor particles and the last piece of copper foil welded with P-type semiconductor particles are drawn out with wires. The device can use the heat naturally emitted by the human body to generate electricity for the wireless sensor with low power consumption in combination with stable and reliable clothing and high conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of thermoelectric power generation, in particular to a flexible wearable power generation device powered by a wireless sensor for human body monitoring. Background technique [0002] In recent years, due to the depletion of fossil energy, the energy situation faced by human beings has become increasingly severe. At the same time, the over-exploitation of resources and the ensuing environmental degradation have sounded the alarm for human beings more than once, bringing new challenges to the sustainable development of human civilization. serious threat. Facing severe energy and environmental crises, many countries have carried out research on "green energy" (including solar energy, wind power, geothermal energy, tidal energy, etc.), and have made considerable achievements. At present, the proportion of "green energy" in the global energy structure is about 15-20%. The long-standing phenomenon that fossil ene...

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Problems solved by technology

[0006] The disclosed patent of CN204614820U proposes a flexible film thermoelectric power generation device, the P-type and N-type semiconductor thermocouples of the device are flexible, but the hot and cold panels are still rigid substrates, which is not convenient for combining clothes to collect human body Temperature difference energy

The thermoelectric power generation device with a flexible base disclosed in CN102664562A is mainly used to collect automobile exhaust. Its hot end panel is fixedly connected to a spring flexible base, which can greatly increase the convenience of installation and expansion, but its thermoelectric power generation sheet is not flexible. Therefore, it is also difficult to form a body-worn energy harvesting system

The flexible self-supporting thermoelectric power generation structure disclosed in CN104410331A is very close to the needs of wearable integration, but because the wires connecting P-type and N-type semiconductors are not stretchable, it is very easy to cause wire breakage when bending the thermoelectric power generation device

The wearable thermoelectric power generation device announced by CN204068767U combines the thermoelectric power generation sheet with clothes, because the part in contact with the human body is the ceramic heat conduction sheet at the hot end of the rigid thermoelectric power generation sheet, on the one hand, the human body is not a smooth structure, so it is not easy to touch; On the one hand, due to the fact that the temperature difference of the human body is not particularly large, the heat conduction of ceramics will cause the heat collection effect to be insignificant

CN203871377U is similar to CN104410331A and is more suitable for wearable integration, but the copper foils and wires connecting the P-type and N-type semiconductor thermocouples on the hot end panel and the cold end panel are the same, which can easily lead to fracture when bending the thermoelectric power generation device

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