Waterproof fan internal structure have what process?

For waterproof demand higher product, may require bubble water, soak in the water may be, the requirement of waterproof fan to IPX7, light do plus three corrosion resistant paint protection is not enough, need to the whole motor full isolation, let water cannot interfere with the motor, reliable approach is: PCB to add glue, the motor seal, see motor


the waterproof fan needs a special mould to be waterproof function, internal structure design good do glue, motor and mould protection cover. Also need dedicated mold can be. To do this process is put waterproof fan water work, also do not affect the performance of the fan