Test Chamber Air Inflow Control for Stable Room-Temperature Testing
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Solution Overview
Problem
Existing temperature control units in electronic device testing systems fail to maintain a constant internal chamber temperature during room temperature testing, leading to inefficiencies and resource wastage, and struggle to prevent foreign particles from entering the chamber.
Innovation Solution
A temperature control unit with an external air inflow controlling device that allows conditioned external air to flow into the chamber during room temperature testing, while sealing the chamber for low or high temperature testing, and includes a connecting member to block foreign particles and utilize air-conditioned air for improved temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the chamber is sealed to maintain temperature during low or high temperature testing, then temperature stability is improved, but foreign particles can enter the chamber
Solution Approach 1:
A filter is introduced as an intermediary component between the chamber interior and exterior. The filter allows air circulation for temperature control while blocking foreign particles from entering the chamber, thus resolving the contradiction between maintaining temperature stability and preventing particle contamination.
2Object-affected harmful factors
If the chamber is opened for room temperature testing, then foreign particles can be prevented from entering, but temperature control becomes inefficient and resources are wasted
Solution Approach 1:
The filter serves as a mediator that enables the chamber to remain closed during room temperature testing while still allowing air circulation. This maintains temperature control efficiency and prevents energy waste, while simultaneously preventing foreign particles from entering the chamber.
3Stability of the object's composition
If air circulation is increased for temperature control, then temperature uniformity is improved, but foreign particles can be drawn into the chamber
Solution Approach 1:
The filter is positioned in the air circulation path to allow sufficient air flow for maintaining temperature uniformity throughout the chamber, while simultaneously blocking foreign particles from being drawn into the chamber by the air circulation.
4Loss of energy
If the chamber remains closed during room temperature testing, then energy efficiency is improved, but foreign particles can accumulate inside
Solution Approach 1:
The filter enables the chamber to remain closed during room temperature testing, maintaining energy efficiency by preventing energy loss. At the same time, the filter blocks foreign particles from entering and accumulating inside the chamber, resolving both concerns.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution maintains the chamber at room temperature during room temperature testing, prevents foreign particles from entering, and enhances the reliability and efficiency of temperature control, ensuring precise testing conditions and reduced resource wastage.
Implementation Method 1
a fan (141) for supplying air to the inside of a chamber (120)
Implementation Method 2
a heater (144) for heating air discharged through the discharging hole (143b)
Implementation Method 3
a gas supplier (145) for supplying low temperature gas capable of removing heat from the air
Data Source
AI summary
A system to support the testing of electronic devices and a temperature control unit for the system are disclosed. A temperature controlling method for a chamber of the system is also disclosed. Low or high temperature air is supplied to the inside of the chamber when the electronic devices are tested at low or high temperature. External air is supplied to the inside of the chamber when the electronic devices are tested at room temperature.