Charging stations are mainly composed of the following seven parts: charging station housing, charging gun housing, plug, socket, circuit breaker, contactor, power module housing, and charging station cable. Many of the components are made of polymers, some of which are enumerated as follows:

  1. PC (Polycarbonate)

It is a transparent, colorless or slightly yellow, tough solid with transparency second only to PMMA (polymethyl methacrylate) and PS (polystyrene). It has a light transmittance of 89%, is odorless, non-toxic, and has good coloring properties.

  1. SM (Sheetmolding compound)

SMC (Sheet Molding Compound) has excellent electrical properties, corrosion resistance, lightweight, and advantages in engineering design and flexibility. Its mechanical properties can rival some metal materials, making it widely used in industries such as electrical, electronic, automotive, construction, chemical, and aerospace. As the most advanced and widely promoted material for manufacturing electrical equipment enclosures, SMC composite materials have unparalleled advantages compared to other non-metallic and metallic materials.

  1. PET(Polythyleneterephthalate)

PET (Polyethylene terephthalate) is a polymer that is milky white or light yellow in color and highly crystalline. It possesses excellent physical and mechanical properties over a wide temperature range. It can withstand long-term use temperatures of up to 120°C. PET also exhibits excellent electrical insulation properties, and even at high temperatures and frequencies, its electrical performance remains good.

  1. PBT(polybutyleneterephthalate)

One of the most common types of engineering plastic. Usually, PBT is reinforced with glass fibers or modified with inorganic fillers. The tensile strength and flexural strength of modified PBT will be more than doubled, and the heat deflection temperature will significantly increase, allowing it to operate for prolonged periods at temperatures up to 140°C.

  1. Modified nylon

Modified nylon, such as PA6 (Polyamide 6) and PA66 (Polyamide 66) is a type of engineering plastic that is derived from nylon raw material and undergoes modifications to alter its physical properties, resulting in granular products. The production of such products is based on the specific requirements of different manufacturers. Modified nylon generally includes the following types: reinforced nylon, toughened nylon, wear-resistant nylon, halogen-free flame retardant nylon, conductive nylon, and flame retardant nylon.