About the waterproof design of the cooling fan of the charging pile cabinet?

Because most of the charging pile cabinets are placed outdoors for charging, they are very likely to be exposed to rain. How can the cooling fan, an important part of its cooling system, be waterproof? Is there any special design? Cooling fan manufacturers take into account the high-power cooling fan series for outdoor use, and consider the waterproof function when designing the mold. The protection is mainly from the following two aspects: 1. The common motor is shown in Figure 1, and the coil is wound on the silicon steel sheet. As long as you open the buckle and take out the fan blades, you can see the motor wiring diagram. For the cooling fan used in the charging pile cabinet, in order to prevent the motor coil from being disturbed by rain, the best way is to seal the entire coil, as follows Picture two, the coil is completely invisible, it is covered by a black insulating cover, water can not soak the coil (picture 1) before the motor is waterproof) (picture 2) after the motor is waterproof (picture 3) after the motor + PCB is protected As shown in Figure 3, the PCB circuit of the control board on the opposite side of the motor is filled with waterproof glue so that the PCB board will not be oxidized when it touches water. After the two steps of the motor waterproof protection process in Figures 2 and 3, it is exposed to rain. Don't be afraid, there is no problem with the cooling fan working in water, and the waterproof level reaches IPX7. Welcome to the heat dissipation classroom and news center of the cooling fan manufacturer again. The copyright belongs to the cooling fan manufacturer and represents only personal opinions. Please do not reprint the whole article. Any violation will be held for legal responsibility. If you need to know more about the cooling fan manufacturer's product introduction, please Click Product Center