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A method for rapid preparation of thermoelectric devices

A thermoelectric device, fast technology, applied in the manufacture/processing of thermoelectric devices, thermoelectric devices that only use the Peltier or Seebeck effect, etc., can solve the problems of low yield and low raw material utilization, and achieve high printing efficiency and regular structure , to overcome the effect of low yield

Active Publication Date: 2019-03-19
武汉新赛尔科技有限公司
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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 method for rapidly preparing thermoelectric devices in view of the above-mentioned deficiencies in the prior art, by combining inkjet printing and selective laser melting 3D printing technology, and additive manufacturing technology to print thermoelectric devices , to avoid the cumbersome intermediate links in the traditional thermoelectric device preparation process, and at the same time can directly print micro-devices, to overcome the problems of low yield and low raw material utilization in the traditional welding assembly process

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  • A method for rapid preparation of thermoelectric devices
  • A method for rapid preparation of thermoelectric devices
  • A method for rapid preparation of thermoelectric devices

Examples

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Embodiment 1

[0083]A rapid preparation of p-type Bi 0.5 Sb 1.5 Te 3 n-type Bi 2 Te 2.8 Se 0.2 A method for a thermoelectric device, comprising the steps of:

[0084] 1) Prepare the raw materials and weigh the composition as Bi 0.5 Sb 1.5 Te 3 (p-type thermoelectric material) and Bi 2 Te 2.8 Se 0.2 (n-type thermoelectric material) thermoelectric material powder and 500 grams of electrode powder Cu powder, each raw material powder is dispersed in 300ml, 300ml and 220ml of water after passing through a 400-mesh sieve, and then placed in 3 different storage tanks As the ink for inkjet printing in the material tank, the ink in the material storage tank is transported to the inkjet printing nozzle under the action of pressure; and prepare a square Al with a thickness of 1mm and a side length of 30mm 2 o 3 Place and fix the ceramic plate on the printing substrate; pre-evacuate the forming cavity of the selective laser melting device for 5 minutes, then use Ar gas to backfill the cavit...

Embodiment 2

[0091] A method for rapidly preparing p-type SnTe / n-type SnSe thermoelectric devices, comprising the steps of:

[0092] 1) Prepare raw materials, weigh 500 grams each of thermoelectric material powder composed of SnTe (p-type thermoelectric material) and SnSe (n-type thermoelectric material) and electrode powder Ag powder, and pass through a 400-mesh sieve for each raw material powder, Disperse in 230ml, 250ml and 250ml of water respectively, and then place them in 3 different storage tanks as the ink for inkjet printing. The ink in the storage tanks is transported to the inkjet printing nozzle under pressure; the preparation thickness is 1mm Al 2 o 3 Place and fix the ceramic plate on the printing substrate; pre-evacuate the forming cavity of the selective laser melting device for 5 minutes, then use Ar gas to backfill the cavity to normal pressure, keep the water and oxygen content in the cavity below 100ppm, and the substrate is pre-evacuated Heat to 80°C and hold for 10 ...

Embodiment 3

[0099] A rapid preparation of p-CeFe 4 Sb 12 Binding n-type Co 4 Sb 12-x Te x (x=0~0.1) the method for thermoelectric device, comprises the steps:

[0100] 1) Prepare raw materials, including Al 2 o 3 Ceramic insulating substrate, Cu 50 Mo 50 Alloy electrode powder, p-type p-CeFe 4 Sb 12 Thermoelectric compound powder and n-type Co 4 Sb 12-x Te x (x=0~0.1) thermoelectric compound powder, wherein the particle size of each powder raw material is below 50 μm, and respectively dispersed in water to make a suspension for inkjet printing in the subsequent step, the mass percentage of the suspension is equal to 30%;

[0101] 2) According to the required electrode pattern and thickness, the electrode powder suspension is inkjet-printed on the insulating substrate (1) by using a selective laser melting process to obtain the insulating substrate printed with the electrode layer (1);

[0102] 3) According to the designed device thermoelectric arm size and distribution, the ...

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Abstract

The present invention provides a method for quickly preparing thermoelectric devices, comprising the following steps: 1) preparing raw materials; 2) printing electrode powder on an insulating substrate by using a selective laser melting process according to the required electrode pattern and thickness (1) Above; 3) The p-type and n-type thermoelectric compound powders are respectively printed on the electrode layer 1 obtained in step 2) into p-type and n-type thermoelectric arms by selective laser melting process; 4) The electrode powders are selectively The laser melting process is printed on the p-type and n-type thermoelectric arms to obtain the p-type and n-type thermoelectric arms printed with the electrode layer 2; 5) the surface of the electrode layer 2 is covered with the insulating substrate 2 to obtain a thermoelectric device. The present invention directly starts from thermoelectric material powder, adopts laser selective melting process, prints thermoelectric devices through layered manufacturing technology, avoids cumbersome intermediate links in the traditional thermoelectric device preparation process, and overcomes the low yield and raw materials in the traditional welding and assembly process. The problem of low utilization.

Description

technical field [0001] The invention relates to a new method for rapidly preparing thermoelectric devices, which belongs to a new technology for preparing thermoelectric materials and devices. Background technique [0002] Thermoelectric conversion technology includes thermoelectric refrigeration technology and thermoelectric power generation technology. The former uses the Peltier effect of materials to convert electrical energy into thermal energy, and the latter uses the Seebeck effect of materials to convert thermal energy into electrical energy. As a new all-solid-state energy conversion technology , thermoelectric devices have the advantages of long life, no maintenance and adaptability to harsh environments. Among them, thermoelectric refrigeration technology is applied to refrigeration fields that have special requirements for noise and space, such as wine cabinets and car seat cushions that use thermoelectric refrigeration technology. The cooling of laser diodes is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L35/34H01L35/28H10N10/01H10N10/10
CPCH10N10/10H10N10/01
Inventor 鄢永高唐新峰苏贤礼吴林春陈天乐
Owner 武汉新赛尔科技有限公司
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