New national standards(GB) of e cigarette as announced on Apr 8 by Chinese Market supervision and Administration Bureau, and the new GB will come into force from Oct 1 2022
Contents:
- GB417-2022:5.5 waterproof:to meat IPX4
Interpreting new requirement on waterproof: the e cigarette device can be used normally after being tested by IPX4, IPX4 is the grade that no dust-proof required, and only splash-proof is needed(means the splash of liquid from any direction won’t affect the use )
- GB417-2022 6.1.5 waterproof test of e cigarette
Interpreting the test procedure:turn on the samples after being fully charged, and put the sample on the proper place in Swing tube water spraying test device–the gap better top of the samples and the spraying port should not be more than 200 mm, and the sample table don’t rotate;then adjust flowing volume: 0.07L/min per hole. Rotating speed of spray ports: about 12s every two circle, lasting 10 min.. similar the situation of e cigarette being put in heavy rain for 10 min.
Passed samples needs to meet: samples can discharge and charge normally without fire explosion,no indicator flashing, no short-circuit and no auto vaping.
Methods to achieve waterproof IPX4
- make whole device waterproof
- Outsource the chips, to make a invisible protecting film through nanometre plating.
E cigarette waterproof is some technology that can be easily ignored,and there are air holes to start heater,so it’s difficult to do waterproof for whole device.mean while it will cost much time , labor ,energy, and other source to do waterproof from structure.So nanometre plate the chip is a effective and cost efficient way.
Comparing test outcomes after nanometre plating on chip
- Structure waterproof: the water may permeate into electronic components through cartridge port or USB ports,which will bring the risk of short-circuit high
- Nanometre plating the chip. The electronic components have been protected by the nanometre film. Everything goes well after the test,meanwhile it can protect chip from such issues as condensate and oil leakage
Post time: Aug-10-2022
