High acceleration temperature changing test chamber

A test box, high-acceleration technology, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve the problem of difficult control of the air flow in the box, and achieve the effect of simple structure

Inactive Publication Date: 2007-09-19
顾韵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The refrigeration part adopts mechanical refrigeration, with a maximum cooling rate of 10°C / min and nonlinear temperature change; the air flow in the box is difficult to control

Method used

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Embodiment Construction

[0015] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:

[0016] The present invention mainly consists of a motor 1, a nozzle 2, an axial fan blade 3, a pressure balance hole 4, a rear cover 5, an outer shell 6, an insulation layer 7, an inner tank 8, an air flow in the box 9, a channel steel bracket 10, and an air suction port Plate 11, air outlet plate 12, working room 13, upper cavity A of the box body, lower cavity B of the box body, air outlet 14, electrical control box 15, outer layer sealing strip 16, door sealing strip 17, FRP connection frame 18 , inner sealing strip 19, baffle plate 20, bracket 21, stainless steel nickel-chromium wire ceramic bracket heater 22, lighting lamp 23, high and low temperature resistant hollow glass with conductive film 24, door 25, liquid nitrogen storage tank 26, pressure regulating valve 27 , pipeline 28, solenoid valve 29 and other components.

[0017] As shown in Fig...

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Abstract

The present invention relates to a high-speed testing box of the temperature changing which pertains to the field of equipment technology of environment testing. The characteristics are: an electromotor is positioned on the top of said workshop, and an axial-flow fan impeller; an upper chamber A of the box is formed by the wind inlet board positioned in the workshop and a liner and a lower chamber B of the box is formed by a wind outlet board and the liner; the testing can be performed quickly under the limit stress defined by the technique terms to find the working limitation of the product, and even to destroy the limitation finally; then, a high-accelerating stress filtering testing plan can be made according to the limitation defined by a lifetime testing, and the production deficiency can be eliminated through the high-accelerating stress filtering testing the make the product reliable in a short time; the most remarkable difference between the product in the present invention and the prior high and low temperature testing box reside in the rising speed of the temperature and the linear and gradual changing of the high temperature.

Description

technical field [0001] The invention relates to a high-acceleration temperature change test box, which is used for high-acceleration life test and high-acceleration stress screening test for equipment, and belongs to the technical field of environmental test equipment. Background technique [0002] With the rapid development of my country's industrial production and the improvement of military equipment, the requirements for product quality and reliability are getting higher and higher, so the requirements for the variety and quality of environmental test equipment, which is an indispensable equipment for reliability research, are also higher. . The Highly Accelerated Temperature Test Chamber is the test equipment used for the Highly Accelerated Life Test (HALT) and Highly Accelerated Stress Screening (HASS) tests. Different from the traditional reliability test, the purpose of the life test (HALT) test is to stimulate the failure, that is, to stimulate the potential defect ...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01M19/00G01M99/00
Inventor 顾韻
Owner 顾韵
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