Issues that need to be considered in the design of waterproof junction boxes
ShenZhen HuaYi-FaDa Technology CO., Ltd., an expert in waterproof junction boxes, tells you what to consider when designing waterproof junction boxes!
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1. Selection of materials: The main application areas of waterproof junction box products are the worksites and open-air sites with relatively harsh environments. When considering the safety performance of the product, the impact resistance, static load strength, insulation performance, non-toxicity, anti-aging performance, corrosion resistance and flame retardant performance of the material should be considered. (Non-toxic performance has received extensive attention, mainly because if the waterproof junction box product encounters a fire, it will not release toxic and harmful gases when it burns. Generally, it is often caused by inhalation of a large amount of toxic gases when a fire occurs. most.
2. Structural design: The overall strength, aesthetics, easy processing, easy installation and recyclability of the waterproof junction box should be considered. The waterproof junction box products produced by international mainstream manufacturers do not contain any metal accessories, which can simplify the product recycling process. However, most domestic manufacturers choose different materials, and the materials have poor anti-waxy performance. Generally, brass inserts are installed in the installation sockets in the waterproof junction box to increase the installation strength, which will increase the efficiency of the material recycling process. time and cost. Such problems can be solved if raw materials with high performance indicators provided by regular manufacturers are used.
3. Wall thickness: Generally, when designing the product, considering the overall cost of the product, the wall thickness of the product should be reduced as much as possible while satisfying the impact resistance and wax resistance of the product. In the design of international waterproof junction boxes, ABS and PC The wall thickness of material products is generally between 2.5 and 3.5, the glass fiber reinforced polyester is generally between 5 and 6.5, and the wall thickness of die-cast aluminum products is generally between 2.5 and 6. The wall thickness of the material should meet the installation requirements of most components and accessories in the design.
4. Selection of sealing rubber ring material: For waterproof junction box products, commonly used sealing rubber ring materials are: PUR, EPDM, Neoprene, Silicon. Temperature range, tensile strength, expansion ratio, hardness, density, compressibility, and chemical resistance should be considered when selecting a gasket.