Heat insulation device and method

Abstract

The present invention provides a heat insulation device and method. The heat insulation device comprises an adapter, an embedded waterway, a solenoid valve, a control instrument and a temperature sensor; a circular hole is formed in the center of the lower end face of the adapter to mount the embedded waterway; the embedded waterway is of a hollow columnar structure coiled by a water pipe around the circumference; a water inlet and a water outlet of the embedded waterway penetrate out from the side wall of the lower part of the adapter; the water inlet of the embedded waterway is connected with an outlet C of the solenoid valve through a pipeline, and an inlet A and an inlet B of the solenoid valve are connected with a water supply pipeline and a water return pipeline of a testing box correspondingly; the water outlet of the embedded waterway is connected with the water return pipeline of the testing box, and the temperature sensor is mounted in the testing box; and the control instrument measures the temperature in the testing box through the temperature sensor, and controls the inlet A and the inlet B of the solenoid valve according to the temperature in the testing box. The formthat the embedded waterway is configured through the adapter is adopted, thus the effects of connection of a test piece clamp with a mechanical decoupling device, and vibration conveying can be achieved, and heat or cooling capacity in the testing box can also be prevented from being downwards transferred through circulating water of the embedded waterway.

Description

technical field [0001] The invention relates to a heat insulation device and a method, belonging to the technical field of temperature-humidity-vibration comprehensive environmental tests. Background technique [0002] The temperature-humidity-vibration comprehensive environmental test system (referred to as the comprehensive environmental test system) is composed of a temperature and humidity test chamber (referred to as the test chamber) that can generate temperature and humidity environments and a vibration table that can generate vibration environments. It is a common equipment for temperature-humidity-vibration comprehensive environmental test and reliability test of products, and can apply environmental stress such as temperature, humidity and vibration according to the specified test profile. Among them, the test chamber includes a heating system (including heaters, fans, etc.), a refrigeration system (including compressors, evaporators, condensers, etc.), a humidific...

AI Technical Summary

Problems solved by technology

However, as the mass of the test piece increases, the temperature stabilization time increases from the original 1 to 3 hours to more than 20 hours. This heat insulation method can no longer effectively prevent the heat or cold in the test chamber from being transmitted downwards.

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