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Coil-shaped thermoelectric unit, fabric structure thermoelectric device and preparation and application thereof

A thermoelectric device, coil-shaped technology, applied in the manufacture/processing of thermoelectric devices, thermoelectric device parts, etc., can solve the problems of complex preparation, poor wearability, good wearability, etc., and achieve good bidirectional stretching performance and output High power density and good wearability

Active Publication Date: 2019-03-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a coil-shaped thermoelectric unit, a fabric-structured thermoelectric device and its preparation and application, so as to overcome the difficulties in self-supporting, poor flexibility, stretchability and wearability of the devices obtained in the prior art, complicated preparation, The defect that it cannot meet the power generation needs of the human body and the environment, this method can be self-supporting, does not require additional support materials, has a compact structure, greatly improves the output power density, and the thermoelectric knitted fabric can realize the power generation needs in the direction of temperature difference between the human body and the environment, wearable Good, good biaxial stretching performance, large-area preparation can be realized, and it has good application and development prospects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Coil-shaped thermoelectric unit, fabric structure thermoelectric device and preparation and application thereof
  • Coil-shaped thermoelectric unit, fabric structure thermoelectric device and preparation and application thereof
  • Coil-shaped thermoelectric unit, fabric structure thermoelectric device and preparation and application thereof

Examples

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Embodiment 1

[0048] The coil-shaped thermoelectric unit is constructed of carbon nanotube yarns containing P-type segments, N-type segments, and electrode segments through interspersed interval wrapping and bending. The P-type segment is made of carbon nanotube yarns mixed with amine It is obtained by impregnation and doping with impurity agents, and the P-type segment is obtained by impregnating and doping carbon nanotube yarns through PEDOT:PSS. The P-type segment and the N-type segment are located at the coil position of the coil, and the electrode segment is located at the coil arc position of the coil. The coils are connected in series to form a weft row, and the first row arc is placed above the second row. The row arc is placed under the third row column, which is a cycle, and every two subsequent rows are a cycle, and the cycle configuration is repeated in turn, and the elastic relationship between the curved yarns (coils) is cleverly used to make the coils stand upright on their ow...

Embodiment 2

[0061] The coil-shaped thermoelectric unit is constructed of carbon nanotube yarns containing P-type segments, N-type segments, and electrode segments through interspersed interval wrapping and bending. The P-type segment is made of carbon nanotube yarns mixed with amine It is obtained by impregnation and doping with impurity agents, and the P-type segment is obtained by impregnating and doping carbon nanotube yarns through PEDOT:PSS. The P-type segment and the N-type segment are located at the coil position of the coil, and the electrode segment is located at the coil arc position of the coil. The coils are connected in series to form a weft row, and the first row arc is placed above the second row. The row arc is placed under the third row column, which is a cycle, and every two subsequent rows are a cycle, and the cycle configuration is repeated in turn, and the elastic relationship between the curved yarns (coils) is cleverly used to make the coils stand upright on their ow...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a coil-shaped thermoelectric unit, a fabric structure thermoelectric device, and preparation and application thereof. The thermoelectric unit is composed of a horizontal column formed by a plurality of coils connected in series in the latitudinal direction, and is composed of a circularly alternate coil horizontal column, wherein each coil is a thermoelectric yarn coil containing a P-shaped segment, an N-shaped segment, and an electrode segment. The output power density of the device can be adjusted conveniently by changing the length of the coil and the thickness of awrapping layer. The thermoelectric device designed in the invention can realize power generation in the direction of temperature difference between a human body and the environment, has two-way stretching performance, is not required to be supported by any other textile-based material, solves the problem of thermoelectric unit configuration direction faced by most flexible thermoelectric devicesat present, has wearable and independent energy functions, can be directly used for batched and large-area textile and garment processing and production, and greatly promotes the practical applicationof the thermoelectric devices in energy supply.

Description

technical field [0001] The invention belongs to the field of thermoelectric materials and devices and their preparation and application, in particular to a coil-shaped thermoelectric unit, a fabric structure thermoelectric device and their preparation and application. Background technique [0002] With the rapid development of the wearable electronics market, miniaturization, flexibility, and durable power supply methods have become an important bottleneck restricting the development of wearable electronics technology. As a clean, safe and durable energy supply method, thermoelectric devices have attracted extensive attention at home and abroad. [0003] Textiles are one of the necessities that are closely related to people's lives, and realizing energy independence of textiles is the most effective way to solve portable and wearable problems. For example, patent CN 108103634 A discloses a textile structure thermoelectric device constructed by one or more methods of knittin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): H01L35/02H01L35/34
CPCH10N10/80H10N10/01
Inventor 王连军孙婷婷杨建平范宇驰罗维江莞
Owner DONGHUA UNIV
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