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What are the problems that automobile wiring harness often appears?

What are the problems that automobile wiring harness often appears?

Blog | 3月 17,2022

Automobile wire harness refers to the component of the connecting circuit formed by a wire harness, which is formed by pressing the contact terminals made of copper and crimped with wires and cables.

Hulk insulator or metal hulk is applied outside and bundled with a wire harness. In practical application, the automotive wiring harness is easy to causes extreme safety problems once failure occurs due to high use intensity, bad working environment, substandard production quality and other problems. So the use of an automotive wiring harness is prone to what problems?

 

The cable bundle is worn

 

The cable bundle is worn

Automobile movement will inevitably be jolted, especially chassis wiring harness, wear risk is relatively large. When the friction breakdown down the wire harness and suspension, it will cause lashings, resulting in the failure of the electronic stability system.

 

Wire feed water

If the sealing process is not properly controlled in the production of the harness, the body control module (BCM) or the wiring harness at the connection between the BCM and the body a-pillar may be damaged due to water inflow.

 

Environmental reliability testing equipment

 

Burnt and ablated wire harness

For the automobile, such as installed in the engine, exhaust pipe, water pipe and other heat sources near the wiring harness, often due to the lack of a clip fixed and burned, scorched, resulting in electrical equipment failure, eventually cause spontaneous combustion.

 

Poor wire harness contact

The bad connector of wire harness assembly is a common failure mode of the engine wire harness. Too many bad contact problems occur in the connector, such as poor sheath quality: poor assembly process, unreasonable coating setting, terminal oxidation is one of the reasons. Poor wiring harness contact does not appear to be fatal. But the pitfalls are many, and it’s easy to detract from the experience. Things like headlights not coming on, engines not starting, glass lifters not working, can be caused by it.

 

Wire harness fracture

 

Wire harness fracture

Wire harness fracture is a common fault model of automobiles, and the reasons can be simply listed as: the branch design of wire harness is too short, the manufacturing of wire harness is not standard, and the wire harness is twisted during assembly. Because some line speeds are subject to warping, this kind of fracture risk is often difficult to avoid.

 

Wire feed water

 

Zhejiang Lianhe Electronics Co., LTD., specializing inline production line, board to board, the line to board, automobile connector, wire harness and other products, welcome to visit our official website https://www.lhecn.com/contact-us/ for inquiry

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