Application of wiring harness in air conditioning

The wiring harness of air conditioning equipment is an integrated circuit component used to connect core components such as the electronic control system, compressor, and fan inside the air conditioner. It is responsible for power transmission and signal control functions, and its design and application directly affect the operating efficiency and safety of the air conditioner.

The air conditioning wiring harness uses copper core wires as the mainstream conductive material for transmitting high currents (such as compressor power supply), with low electrical resistivity (about 0.017 Ω· m) and oxidation resistance. Aluminum wires are used as a low-cost alternative to copper wires, but additional oxidation resistance treatment is required to improve stability.

The insulation and protective structure of the air conditioning wiring harness is wrapped with PVC (high temperature resistant, flame-retardant) or PE (high flexibility) materials to adapt to the high temperature and vibration environment inside the air conditioner, protecting the main wiring harness. The air conditioning wiring harness is covered with PP/PA material corrugated pipes to prevent compression and wear; The branch line is fixed with tape or fabric material.

The connectors and terminal connectors of the air conditioning wiring harness (such as HR4141A-6Y JST-VH-6S) are made of POM plastic steel or PA material to ensure waterproof and seismic performance, and are compatible with precision interfaces such as frequency converters.

The indoor unit wiring harness of the air conditioning harness uses concealed wiring methods (such as embedded guide devices) to improve aesthetics and maintenance convenience. The outdoor unit wiring harness of the air conditioning harness uses UV resistant PVC or weather resistant PA materials to cope with harsh environments such as high temperature and humidity.

During installation, it is necessary to design grounding wires to prevent leakage risks. The air conditioning wiring harness uses flame-retardant insulation materials to reduce the probability of fire caused by short circuits.

The air conditioning wiring harness, with copper wires as the core, is a circuit network constructed through high-temperature resistant insulation layers and seismic connectors. It provides stable power for compressors, fans, etc., and supports the cooling/heating cycle, which is the "lifeline" for efficient and safe operation of air conditioning.