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Copper wire bundle
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Aluminum wire harness
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Cost reduction of replacing copper wire bundles with aluminum wire bundles
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cost |
Copper material is expensive, and the cost of manufacturing copper wire bundles is high, with a price of up to 5 yuan per meter |
The price of aluminum is low, and the cost of manufacturing aluminum wire bundles is significantly reduced, with a price of about 2 yuan per meter |
Taking a Xiaomi car as an example, with a total wiring harness length of 5 kilometers, if all were replaced, the cost could be reduced by 15000 yuan. 200000 Xiaomi devices save 3 billion yuan. |
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weight |
Copper density is high, and the weight of copper wire bundles is heavy, which increases the overall weight of the vehicle and affects fuel economy and handling |
Aluminum density is about one-third that of copper. Aluminum wire harness is lighter in weight, which can reduce the overall weight of the vehicle, improve fuel economy, and enhance handling performance |
After replacement, the entire vehicle uses copper wire bundles weighing about 50 kilograms. By replacing with aluminum wire bundles, the weight can be reduced by 30 kilograms, which helps improve the vehicle's handling and endurance. |
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Conductivity |
Excellent conductivity, low resistance, can effectively ensure the stability of power transmission |
Although the resistivity is slightly higher than copper, it can meet the requirements of automotive electrical systems through optimized design |
Under reasonable design, it does not affect the electrical performance of the car |
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flexibility |
The texture is relatively hard and the flexibility is relatively poor, which may require more skills and time for installation |
Soft texture, good flexibility, easy to install and wire, can shorten installation time |
The installation time may be shortened by 1 hour (assuming it takes 3 hours to install copper wire bundles and 2 hours to install aluminum wire bundles) |
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corrosion resistance |
Susceptible to corrosion in damp and chemically corrosive environments |
Aluminum surface is prone to forming a dense alumina protective film, which has strong corrosion resistance and can reduce maintenance and replacement caused by corrosion |
Reduce the frequency of wire harness maintenance, lower maintenance costs, and achieve significant economic benefits in the long run |
The wiring harness is like the nervous system of a car, accurately transmitting signals and electrical energy to ensure the coordinated operation of various components; Similar to the power link of an electrical plug, it stably delivers current and maintains power supply. It is the key thread of the industry it belongs to. It is also crucial in other electrical industries.
Currently, Jinpeng Group and several companies in Taizhou, Wenzhou, are conducting tests and have purchased 8 tons for small-scale application.
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