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Manufacture device for powder thermoelectric material and turning disk using the said device

A technology for rotating discs and manufacturing devices, applied in thermoelectric devices, circuits, electrical components, etc., can solve the problems of easy solidification of melts, large discs, and decreased powder yield.

Inactive Publication Date: 2007-08-01
KOMATSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the above-mentioned conventional structure, since the disk is relatively large, it cannot rotate at a high speed. The maximum rotation speed is, for example, about 15,000 rpm, and the minimum particle size can only be about 130 μm.
In addition, there are still problems that the heat of the melt is easily absorbed by the disc, the melt is easy to solidify, and the powder yield decreases.

Method used

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  • Manufacture device for powder thermoelectric material and turning disk using the said device
  • Manufacture device for powder thermoelectric material and turning disk using the said device
  • Manufacture device for powder thermoelectric material and turning disk using the said device

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Embodiment Construction

[0021] Embodiments of the present invention will be described below with reference to the drawings. The same reference signs are used for the same constituent elements, and explanations thereof are omitted.

[0022] FIG. 1 is a schematic diagram showing a powder thermoelectric material manufacturing apparatus according to an embodiment of the present invention. The device includes a crucible 1 , a funnel 2 , a rotary disk 3 , a motor 4 , and a powder collection part 7 arranged in a chamber 8 .

[0023] In addition, FIG. 2 is a flowchart showing a method of manufacturing a powder thermoelectric material according to an embodiment of the present invention. Next, a powder material manufacturing method according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2 .

[0024] First, a raw material having a predetermined composition is weighed out and packed into the crucible 1 (step S1). As raw materials of the thermoelectric material, for ...

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Abstract

The invention provides a powdered thermoelectric material manufacturing device incorporating a rotary disk which is durable against thermal shocks, little reacts to raw materials, and can be rotated at a high speed. This powdered thermoelectric material manufacturing device is provided with a container 1 used for mixing raw materials having prescribed compositions with each other and heat-melting the mixture, a funnel or pouring port 2 used for pouring the heat-melted molten mixture, and the rotary disk 3 which is used for scattering the poured molten mixture and made of a silicon nitride or a material containing the silicon nitride.

Description

technical field [0001] The present invention relates to a manufacturing device of powdered thermoelectric material for making thermal modules for conversion between thermal energy and electric energy and a rotating disc used in the device. Background technique [0002] The thermoelectric phenomenon is a general term for the Seebeck phenomenon, the Peltier phenomenon, and the Thomson phenomenon, and elements utilizing this phenomenon are called thermoelectric elements, thermocouples, and electronic cooling elements. The thermoelectric phenomenon is originally a phenomenon found between dissimilar metals, but in recent years, semiconductor thermoelectric materials have been obtained, and conversion efficiencies that cannot be obtained with metal materials can be obtained. A thermoelectric element using a thermoelectric semiconductor material has a simple structure, is easy to handle, and can maintain stable characteristics, so it is attracting attention for a wide range of app...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L35/00H10N10/00
Inventor 小西明夫
Owner KOMATSU LTD