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Time：2021-11-08Views：0
There are some special products that require waterproof fans, such as refrigerators, outdoor cabinets, humidifiers, bathroom products, car lights, etc., and different products have different requirements for waterproofing. The requirements are lower, we generally call it moisture-proof, and the motor stator , PCB board is immersed in conformal paint to protect it, as shown in Figure 1.
For products with high waterproof requirements, it is even possible to soak in water or immerse in water. The requirements for waterproof fans need to reach IPX7. It is not acceptable to use moisture-proof and three-proof paint protection. It is necessary to pass the entire motor Isolate, so that water cannot interfere with the motor. A more reliable method is: add glue to the PCB and seal the motor, so that the motor cannot be seen.
This kind of waterproof fan needs a special mold to add waterproof function, the internal structure is designed to be glued, and the motor plus special mold protection cover. It also requires a professional model. To do this process is to put the waterproof fan in water to work, and it will not affect the performance of the fan.
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