Flexible wearable type thermoelectric power generation apparatus

Abstract

The invention discloses a flexible wearable type thermoelectric power generation apparatus. The flexible wearable type thermoelectric power generation apparatus comprises an upper substrate, a lower substrate, copper foils, an upper textile layer, a lower textile layer, a thermal isolation layer, P type semiconductor particles, N type semiconductor particles, and wires, wherein the thermoelectric power generation apparatus comprises the upper substrate, the upper textile layer, the thermal isolation layer, the lower textile layer, and the lower substrate top to bottom in sequence; even number pairs of the P type semiconductor particles and N type semiconductor particles pass through the upper textile layer, the thermal isolation layer and the lower textile layer to be correspondingly welded on the copper foils which are arranged on the upper substrate and the lower substrate and are fixed at equal spacings; the semiconductor particles are connected by the wires which are connected between the upper layer copper foils to form semiconductor modules; correspondingly, the semiconductor modules are connected by the wires which are connected between the lower layer copper foils; and the first piece of the copper foil which is connected with the N type semiconductor particles, and the last piece of the copper foil which is connected with the P type semiconductor particles are led out through the wires. The flexible wearable type thermoelectric power generation apparatus can be combined with clothes, and can utilize heat, which is generated by a human body naturally, in a stable, reliable and high-conversion-efficiency manner to generate electricity and to supply the electricity to a low-power-consumption wireless sensor.

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 subsequent environmental deterioration have more than once sounded the alarm for human beings and brought about the sustainable development of human civilization. a serious threat. Facing the severe energy and environmental crisis, 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%, and the long-standing phenomenon that fossi...

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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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