Single-layer temperature difference part and integrated micro-temperature difference electric part made by film temperature different electric material

Abstract

The invention relates to a single-layer thermoelectric device manufactured by the thin-film thermoelectric material and an integration micro thermoelectric device. The single-layer thermoelectric device comprises P type thermoelectric thin-film material monomer and N type thermoelectric thin-film material monomer by electric series connection and electric parallel connection, the difference in temperature with the conductive ejector is established along the length direction of the thermoelectric material. The integration micro thermoelectric device which comprises the single-layer thermoelectric device manufactured by the thin-film thermoelectric material by electric series connection and electric parallel connection is an integration thermoelectric device with lamellar structure in the interior. The invention integrates more thermoelectric monomers on the smaller cross-sectional area of heat flow, the thermoelectric battery with the structure is provided with more energy per unit volume, the cryostat with the structure can establish more difference in the temperature, the infrared detector and thermometric indicator with the structure is provided with high measurement accuracy.

Description

technical field [0001] The invention belongs to the technical field of thermoelectricity, and in particular relates to a single-layer thermoelectric device and an integrated miniature thermoelectric device made of thin-film thermoelectric materials. Background technique [0002] The thermoelectric devices prepared based on the thermoelectric effect mainly include: 1) thermoelectric battery; 2) thermoelectric refrigerator; 3) thermoelectric infrared detector; 4) thermoelectric thermometer. A thermoelectric battery is a thermoelectric device that converts temperature difference into electrical energy. It can use various heat energy to generate electricity, especially in the utilization of low-quality heat energy. The thermoelectric battery is characterized by cleanliness, no noise, no harmful emissions, high efficiency and reliability, and long service life. It is a green and environmentally friendly physical power source. A thermoelectric cooler i...

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Problems solved by technology

[0003] The structure of the existing thermoelectric device, one is made of bulk thermoelectric material manufactured by metallurgy or sintering method, the temperature difference of the thermoelectric device made of this bulk thermoelectric material is along the thickness direction of the bulk material Establishment of thermoelectric devices, resulting in large volume, low efficiency, and greatly limited applications; the other is the use of physical vapor deposition or electrochemical deposition of thin-film structure thermoelectric materials, made of this thin-film structure thermoelectric materials The manufactured thermoelectric device is small in size, which realizes the miniaturization of the thermoelectric device, but its temperature difference is still established along the thickness direction of the film like the bulk thermoelectric material. Since the thickness of the film material is in the micron scale, the film along the micron scale It is difficult to establish a large temperature difference in the thickness direction, resulting in low efficiency of thermoelectric devices

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