Application of wiring harness in washing machine

A washing machine harness is an integrated system composed of multiple wires, cables, and connectors, which are woven or tied to form a cohesive structure. It is responsible for connecting core components such as the washing machine's internal electrical control board, motor, and sensors. Its essence is the "nervous system" of the washing machine, which undertakes the dual tasks of power transmission and signal interaction.

The washing machine harness uses color coding to distinguish functions, such as power lines (red), grounding lines (yellow green dual color), signal lines (blue/white), etc., for easy identification and maintenance.

The connectors and plugs of the washing machine harness are designed to be waterproof and earthquake resistant, suitable for the high humidity and strong vibration working environment of the washing machine.

The material design of washing machine wiring harness takes into account conductivity, durability, and safety. Copper wire is the main conductive material, and due to its high conductivity (resistivity of only 0.017 Ω· m) and strong oxidation resistance, it is widely used to connect core components such as motors and control boards, ensuring stable current transmission. Compared with aluminum wire, copper wire has better flexibility, is less prone to breakage when bent, and has higher long-term stability.

The outer insulation material of the wire harness for washing machines is PVC (polyvinyl chloride), which has wear-resistant and flame-retardant properties, with a temperature range of about -40 ℃ to 80 ℃ 24. PE (polyethylene) and TPE (thermoplastic elastomer) are used in signal lines and other scenarios that require high flexibility, balancing insulation and bending resistance.

The wrapping material for washing machine wiring harness is corrugated tube, accounting for over 60%, made of PP or PA material, with a temperature resistance of up to 150 ℃, excellent wear resistance and flame retardancy, suitable for protecting the main part of the wiring harness.

‌The connector and housing of the washing machine harness are made of POM (polyoxymethylene) plastic steel material, which has high strength and corrosion resistance to ensure stability during insertion and removal. However, some high-end models use PA (nylon) gears and bearings to improve the wear resistance of the harness transmission components.

In short, the washing machine harness uses copper wire as the core conductor, combined with PVC/PE insulation layer, PP/PA corrugated pipe and POM connector, to form a comprehensive protection system that balances conductivity efficiency and durability. The washing machine harness is the "nerve and blood vessel" of the washing machine, and a safe circuit system constructed with copper wire and insulation material ensures stable operation of the equipment.