Airtightness test fixture

Abstract

The invention discloses an airtightness test fixture. The airtightness test fixture comprises a fixture frame, a control panel arranged in the fixture frame, test seats installed on the upper surface of the fixture frame, and air pressure monitors for detecting air pressure change inside an electronic component to be tested, wherein the test seats are connected with air inlet pipes and have air inlets communicating with the electronic component to be tested formed therein, the air pressure monitors are electrically connected with the control panel, and the fixture frame is also provided with displays and indicating lamps which are controlled by the air pressure monitors. The airtightness test fixture has the following advantages: a conventional bubble detection method in the prior art is replaced, and under the condition that external air pressure is not changed, the airtightness of the electronic component is tested through detecting the air pressure change inside the electronic component; and whether the sealing performance of the electronic component is qualified can also be displayed through the indicating lamps, and therefore, the airtightness test fixture has a good industrial popularization value and prospect.

Description

technical field [0001] The invention relates to a jig, in particular to an air tightness testing jig, and belongs to the field of mechanical technology. Background technique [0002] Electronic components must have good sealing, so as to ensure waterproof and dustproof during use, so as to ensure the electrical performance of electronic components. In the prior art, the airtightness of the electronic components is generally tested by immersing them in water, that is, a special person holds the electronic components to be tested and immerses them in water, and visually checks for bubbles. If there are bubbles, it means that the airtightness is not good. Well, it is an NG product, and it is an OK product without air bubbles. There are many defects in this kind of inspection, (1) After the inspection is completed, it is necessary to use an air gun to blow off the water, which takes about 20 seconds on average, which is time-consuming and laborious; (2) If the product leaks air...

AI Technical Summary

Problems solved by technology

In the prior art, the airtightness of the electronic components is generally tested by immersing them in water, that is, a special person holds the electronic components to be tested and immerses them in water, and visually checks for bubbles. If there are bubbles, it means that the airtightness is not good. OK, it is an NG product, and it is an OK product without bubbles

There are many defects in this kind of inspection, (1) After the inspection is completed, it is necessary to use an air gun to blow off the water, which takes about 20 seconds on average, which is time-consuming and laborious; (2) If the product leaks air but the bubbles are small, it is not easy to see, and It is very easy to misjudgment due to subjective factors; (3) Electronic products generally have lubricating oil, LED lights, resistors, coils and other components inside, and immersion in water will definitely affect their reliability and service life

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