7165-1648 Automotive Rubber Parts Rubber Car Connector Waterproof Plug Rubber Ring Sealing Plug

2. Wire harness protection

Corrugated pipe protection: The closed type corrugated pipe is used, which has characteristics such as wear resistance, flame retardancy, and heat resistance. The temperature resistance range of the corrugated pipe is -40~150 ℃, and it can also reach 200 ℃ in a short time. Common materials on the market include PA (nylon), PE (polyethylene), and PP (polypropylene), which have advantages in flame retardancy, wear resistance, and bending fatigue resistance. The color of the corrugated pipe must be orange, used to distinguish the low-voltage wiring harness of the entire vehicle, And use rubber sheath plastic sealing or PVC tape winding to fix and seal the cable.

Protective tube protection: For wiring harnesses arranged in narrow spaces or special areas, special wire harness protective tubes need to be used for shielding and protection. General protective pipes have characteristics such as stable chemical properties, non aging, and strong corrosion resistance.

Shield protection: For the high-voltage wiring harness (total positive and total negative of the battery) arranged in the chassis, the design of the shield should consider factors such as waterproofing, anti sediment splashing, and anti scratching. The majority of protective panels use ABS+PC, which has high impact resistance, high heat resistance, and high impact strength and flame resistance at low temperatures.

Sheath protection: For parts that are prone to damage and impact, a self winding sheath can be used, which is characterized by high temperature resistance, impact resistance, cutting resistance, lightweight, and easy installation.

Tape protection: Tape is very useful for wiring harnesses, and is commonly used for protection, bundling, insulation, flame retardancy, marking, and other purposes. High voltage wire harnesses are made of PVC tape with good flame retardancy, which can withstand temperatures up to 80 ℃.

Shielding EMC design: When electric vehicles operate, the constantly changing electrical loads and frequency conversion technology widely used in the system cause severe fluctuations in cable voltage and current, and generate significant EMC electromagnetic interference, which affects the electronic and electrical equipment of the electric vehicle itself and the surrounding environment. Therefore, when designing and selecting wiring harnesses, consideration should be given to shielding against electromagnetic interference, To meet the electromagnetic compatibility requirements of the entire vehicle.

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