Water-proof investigating system and method

Abstract

A water-proof test system is prepared as using air extracting module to generate a negative pressure for extracting air out from internal of tested object to make pressure at internal of tested object be less than pressure at external of tested object, using pressure converter to detect pressure at internal of tested object to generate a pressure data to be outputted, using controller to detect pressure variation in internal of tested object in following time-lasting to obtain result and using obtained result to judge tightness and water proof ability of tested object.

Description

technical field [0001] The invention relates to the waterproof test of the shell, in particular to a waterproof test system and method which do not need to test with water. Background technique [0002] Portable electronic devices such as Personal Digital Assistant (PDA) and GPS Navigator (GPS Navigator), etc., operate with users in harsh environments. In these environments, moisture and dust often cause damage to portable electronic devices, so portable electronic devices must have a better waterproof effect so that when used in these environments, moisture or dust will not invade the interior damage to electronic parts. [0003] The traditional test is to meet the requirement of waterproof effect. Water is splashed on the electronic device or the electronic device is soaked in water, and then the electronic device is disassembled to check whether the water seepage inside meets the waterproof requirement. However, this kind of test will inevitably cause damage to the elec...

AI Technical Summary

Problems solved by technology

However, this kind of test will inevitably cause damage to the electronic device, so the finished product can only be tested randomly to understand whether a single batch of finished products can meet the expected demand

Of course, electronic devices that are already in use and sent back for repair cannot be tested in this way

A comprehensive waterproof test can only be tested on the shell in the semi-finished product, but after the shell is tested, it must still be disassembled to install the internal electronic parts. After this disassembly and reassembly process, its waterproof characteristics have been compared with the state at the time of the test There is a gap

Therefore, the test method of directly testing the waterproof effect with water can only evaluate whether the initial design and a single batch of products can achieve the predetermined waterproof effect, and cannot confirm that each manufactured finished product can achieve the expected waterproof effect.

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