Composite circuit protection structure resistant to high temperature and high overload

Abstract

The invention discloses a composite circuit protection structure resistant to high temperature and high overload. The composite circuit protection structure comprises a shell body consisting of a cylindrical polytetrafluoroethylene shell and a titanium alloy shell. The titanium alloy shell is arranged inside the polytetrafluoroethylene shell. The titanium alloy shell is internally equipped with a polytetrafluoroethylene battery rack and a multi-level buffer module. The multi-level buffer module includes four levels of buffer layers, including a circuit module potting reinforcing layer, an internal glass wool buffer and heat insulation layer, a middle rubber buffer layer and an external glass wool buffer and heat insulation layer which are sequentially arranged from inside to outside. The polytetrafluoroethylene battery rack is disposed between the internal glass wool buffer and heat insulation layer and the middle rubber buffer layer. The polytetrafluoroethylene battery rack is provided with a battery slot. Epoxy resin is potted in the battery slot and the circuit module potting reinforcing layer. The composite circuit protection structure is resistant to both high temperature and high overload, and can achieve a good protection effect. The system cost is lower, and the structure is light. The modules can be detached, and a module easy to damage can be replaced easily.

Description

technical field [0001] The invention relates to a protective structure of a test module, in particular to a protective structure for a high temperature and high overload composite circuit. Background technique [0002] Environmental testing is an indispensable and important link in the process of equipment development, and an important means of equipment performance, function and safety assessment. The abnormal sequence environmental test composed of drop, fire, water immersion, etc. is of great significance for the safety performance assessment of equipment. When the equipment is subjected to environmental tests, it is necessary to install a test module on the equipment. During the environmental test, the equipment must inevitably withstand the impact of high g value and high temperature environment. Under high-g impact and high temperature, the circuit part of the test module is more vulnerable to damage than the test module shell and equipment itself, so the circuit modu...

AI Technical Summary

Problems solved by technology

However, at present, the black box for environmental testing only has impact resistance or only impact resistance, and does not have the composite protection effect of both impact resistance and impact resistance. However, high temperature

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