First of all, the junction box should be waterproof, and its material should have waterproof effect. At present, the waterproof effect of common large materials is mainly plastic, rubber, metal and other materials. For the junction box, metal is obviously unrealistic, the main reason is that the metal is conductor, which is easy to cause leakage accident as the material of junction box. Rubber is easy to aging and not easy to form, so there is only one functional requirement of plastic junction box.
In addition to the selection of materials, there is one point is its design structure, the structure is the key factor restricting its waterproof effect, reasonable structural design can effectively avoid the rain wet caused by various wind directions.
There is also an efficient waterproof setting with silicone sealing ring, which can improve the waterproof performance by 5 times.
Mingdun junction box is based on the above points to achieve waterproof effect.
