In fact, the distribution box in daily life is usually in maintenance, the first thing to solve is its own dust-proof steps. This is mainly because the components installed in it can not directly contact with dust. Therefore, we can understand why the sealing of distribution box is very important when it is made. For the internal components of the product water, dust is very easy to make it work when it appears temperature rise and can not carry out the phenomenon of heat dissipation. Further, the components will accelerate the pace of aging, or burst explosion. Therefore, dust control has always been an important step in maintaining the distribution box.