Textile structure heat dissipator thermal resistance testing apparatus and textile structure heat dissipator thermal resistance testing method

Abstract

The present invention provides a textile structure heat dissipator thermal resistance testing apparatus, which comprises: a rotation device for supporting a heat source device and a textile structure heat dissipator to be tested, wherein the rotation device can rotate around a shaft; the heat source device arranged on the rotation device and used for heating the bottom plate of the textile structure heat dissipator to be tested, wherein the shape of the heating surface of the heat source device is matched with the shape of the bottom plate of the textile structure heat dissipator to be tested; and a fixation device for regulating the contact tightness of the textile structure heat dissipator to be tested and the heating surface of the heat source device. The present invention further provides a textile structure heat dissipator thermal resistance testing method. With the apparatus of the present invention, the disadvantages in the prior art are overcome, the requirements of the textile structure heat dissipator thermal resistance testing are met, the contact tightness of the textile structure heat dissipator and the testing apparatus is ensured through the transverse rod and screw rod matched fixation device, and with the heating surfaces having different curvature radii, the heat dissipating performances of the textile structure heat dissipator under different bottom plate buckling application states can be met.

Description

technical field [0001] The invention relates to a testing device and a testing method for the thermal resistance of a radiator of a textile structure, belonging to the technical field of textile product performance testing. Background technique [0002] At present, in the development and application of power electronic controller products, thermal resistance, as an important parameter to evaluate the heat dissipation capability of radiators, has always been the object of attention and evaluation in the industry. In order to improve the heat dissipation performance and application range of electronic components, etc., a pin-finned textile heat sink with a flexible structure (publication number: CN104400371A) has been developed. As a new type of heat sink, the thermal resistance test of the textile structure heat sink is a prerequisite for its structural design and performance optimization. [0003] At present, when performing thermal resistance testing, traditional radiator ...

AI Technical Summary

Problems solved by technology

However, the bottom plate of the textile heat sink adopts a fabric structure, which determines that the heat sink has characteristics different from traditional heat sinks: the flatness of the bottom surface is low; when it is wrapped on the heat source surface with different curved surfaces, the spatial arrangement of the heat dissipation units changes; Even if the bottom surface is compounded with tin to improve its flatness, the bottom plate still has a certain degree of flexibility

Therefore, the traditional fixing method cannot be used when the textile structure radiator is fixed

In addition, due to the flexible characteristics of the textile structure radiator, it breaks through the limitations of traditional radiators and can be attached to surfaces of different shapes for heat dissipation. This is the test of its thermal resistance under different curvature surfaces. The requirements are put forward, and the heat dissipation surface in the traditional test device is a rigid flat plate or a rigid curved plate, which cannot meet the evaluation requirements of the heat dissipation performance of the textile structure heat sink in different application environments

[0004] To sum up, the existing methods and devices for testing the thermal resistance of radiators cannot meet the requirements of testing the thermal resistance of textile-structured radiators under different application conditions.

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