To put it simply, automobile wiring harness assembly is to wrap various types of wires into bundles, which are called wiring harnesses. The uniform dressing can protect the insulating layer, and at the same time, it can better connect the components and save the occupied space. The materials of automobile wiring harness are mainly wired materials, connectors, and sensors.
Automotive wiring harness assembly process
Before assembling an automobile wiring harness, you must be familiar with the principle of circuit diagram, wiring, and processing of various parts to facilitate subsequent processing. Automobile wiring harness production and processing can be divided into two parts. The first part is crimping terminals, including two forms of automatic crimping and semi-automatic crimping. The second part is the assembly process, which can be divided into the pre-assembly process and the final assembly process.
Precautions for automotive wiring harness assembly
The choice of connector and sheath: Generally, the chassis wiring harness adopts a flame-retardant and mechanically better-corrugated sheath, while the cab wiring harness is wrapped with cold-resistant and heat-resistant insulating plastic tape. Assemble and produce according to the working environment of the automobile wiring harness.
Segmented production: In order to facilitate subsequent assembly and maintenance, automotive wiring harness manufacturers generally conduct segmented manufacturing, connecting multi-segment wiring harnesses together through connectors. In automotive applications, the fewer segments of the wiring harness, the better, and the connector can be avoided. Too much resulting in pressure drop, resulting in poor contact. At the same time, segmented production can promptly find defective products such as poor contact, poor insulation, and assembly errors.
The judgment of poor wiring harness contact: Most of the reason is in the connector. When a fault occurs, the electrical equipment cannot work normally. The electrical equipment can be connected to the power supply, and the connector fault can be ruled out by testing and testing tools.
When assembling an automobile wiring harness, do not pull the wiring harness too tightly (especially when the wiring harness is arranged horizontally) to avoid the loosening of the fixed point of the wiring harness when the vehicle bumps, which will cause a sudden increase in the distance between the two fixed points, resulting in poor internal contact of the wiring harness and wire parameters Change or even break the wire.
Do not arrange connectors with the same model and color to avoid defective products caused by incorrect insertion during assembly. After the wiring harness is assembled, leave enough clearance to ensure that it is not overwhelmed or tripped over by other parts. Avoid ground faults caused by pinching, abrasion, or cracking of the wire harness insulation.
The above information is provided by automotive harness manufacturers.